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Investigating the frequency of anterograde amnesia after endoscopy with midazolam as a premedication
Mehrdad Sayadinia, Seyed Mohamad Seyed Mirzayi , Majid Vatankhah, Mehrdad Malekshoar, Tayyebeh Zarei, Bibi Mona Razavi,
Volume 82, Issue 11 (February 2025)
Volume 82, Issue 11 (February 2025)
Abstract
Background: Endoscopy is a common medical procedure that often involves the administration of sedative agents to ensure patient comfort and cooperation. Midazolam, a short-acting benzodiazepine, is commonly used as a premedication for its anxiolytic and amnestic properties. Despite its widespread use, there is limited research specifically assessing the occurrence of anterograde amnesia, a potential side effect associated with midazolam administration during endoscopic procedures. Understanding the frequency of this adverse effect is crucial for optimizing patient safety and procedural outcomes.
Methods: In this prospective cohort study After obtaining approval and ethical clearance, patients eligible for endoscopy at Bandar Abbas Shahid Mohammadi Hospital were included in the study. They received 2mg midazolam intravenously before the procedure, followed by propofol for anesthesia maintenance. A memory test involving personal details was conducted before and after the procedure to assess progressive amnesia. Additionally, patients were asked about the procedure 5 minutes before discharge.
Results: 342 endoscopy candidates participated, with an average age of 46.77 years, over half being men. Less than a quarter had a diploma. Average endoscopy time was 2.96 minutes, mostly ASA class 2. Recall scores after midazolam injection and endoscopy were 5.22 and 2.87, respectively. Post-graduate education showed a significant difference in midazolam amnesia. No significant gender difference was observed. Longer endoscopy duration correlated with decreased recall scores. ASA class 2 patients had lower post-endoscopy recall scores than ASA class 1. Recall scores decreased with age, with the highest in the 19-29 age range, a statistically significant finding.
Conclusion: This study In conclusion, this study provided valuable insights into the factors influencing midazolam anterograde amnesia. Key findings include a significant association between higher education levels, particularly post-graduate education, and increased recall scores after midazolam injection. Gender did not show a significant impact on midazolam amnesia, but the duration of endoscopy played a crucial role. Additionally, patients in ASA class 2 exhibited lower recall scores than those in class 1, highlighting the influence of overall health status. Age also emerged as a factor, with the youngest age group showing the highest recall scores after endoscopy. These findings contribute to our understanding of factors affecting midazolam-induced amnesia during endoscopy procedures.
Methods: In this prospective cohort study After obtaining approval and ethical clearance, patients eligible for endoscopy at Bandar Abbas Shahid Mohammadi Hospital were included in the study. They received 2mg midazolam intravenously before the procedure, followed by propofol for anesthesia maintenance. A memory test involving personal details was conducted before and after the procedure to assess progressive amnesia. Additionally, patients were asked about the procedure 5 minutes before discharge.
Results: 342 endoscopy candidates participated, with an average age of 46.77 years, over half being men. Less than a quarter had a diploma. Average endoscopy time was 2.96 minutes, mostly ASA class 2. Recall scores after midazolam injection and endoscopy were 5.22 and 2.87, respectively. Post-graduate education showed a significant difference in midazolam amnesia. No significant gender difference was observed. Longer endoscopy duration correlated with decreased recall scores. ASA class 2 patients had lower post-endoscopy recall scores than ASA class 1. Recall scores decreased with age, with the highest in the 19-29 age range, a statistically significant finding.
Conclusion: This study In conclusion, this study provided valuable insights into the factors influencing midazolam anterograde amnesia. Key findings include a significant association between higher education levels, particularly post-graduate education, and increased recall scores after midazolam injection. Gender did not show a significant impact on midazolam amnesia, but the duration of endoscopy played a crucial role. Additionally, patients in ASA class 2 exhibited lower recall scores than those in class 1, highlighting the influence of overall health status. Age also emerged as a factor, with the youngest age group showing the highest recall scores after endoscopy. These findings contribute to our understanding of factors affecting midazolam-induced amnesia during endoscopy procedures.
Ramyar Rahimi Darehbagh , Sara Moradian , Afshin Hajihasanzadeh, Masood Moradi, Farhang Safar Nejhad ,
Volume 82, Issue 11 (February 2025)
Volume 82, Issue 11 (February 2025)
Abstract
Background: Acute pancreatitis is a common and challenging disease that can develop local and systemic complications. It is divided into biliary and non-biliary pancreatitis, based on ultrasonographic findings. This study aimed to evaluate the clinical and paraclinical findings of patients with acute pancreatitis and related factor.
Methods: This cross-sectional study included all patients hospitalized with a diagnosis of acute pancreatitis in Besat and Towhid hospitals of Sanandaj from March 2016 to March 2018. All patients admitted with a confirmed diagnosis of acute pancreatitis during the mentioned period were enrolled. Inclusion criteria were a definitive diagnosis of acute pancreatitis based on clinical features (characteristic abdominal pain), laboratory findings (serum amylase or lipase elevated more than three times the normal level), and/or imaging evidence. Patients with chronic underlying conditions such as diabetes, chronic renal or hepatic failure, advanced cardiac disease, or neoplasms were excluded to reduce confounding effects.
Results: Of the 150 patients, 89 were female (59.33%), and 61 were male (40.67%). The mean age of the patients was 53.11 years old. 62% of patients had biliary pancreatitis, and 38% had non-biliary. The prevalence of alcoholic pancreatitis in the population was 5.33%. The age of people with biliary pancreatitis was more than non-biliary. According to Ranson's criteria, 6% of patients had severe acute pancreatitis, all of whom were over 60.
Conclusion: Acute pancreatitis was more prevalent among women, particularly in the fifth decade of life, with gallstones being the leading cause. Patients with biliary pancreatitis were significantly older, and advanced age was associated with increased disease severity. Moreover, blood glucose, AST, and LDH were significantly higher in severe cases. These findings highlight the importance of early diagnosis, accurate severity assessment, and special attention to elderly patients and those with biliary pancreatitis to reduce complications and improve clinical outcomes.
Methods: This cross-sectional study included all patients hospitalized with a diagnosis of acute pancreatitis in Besat and Towhid hospitals of Sanandaj from March 2016 to March 2018. All patients admitted with a confirmed diagnosis of acute pancreatitis during the mentioned period were enrolled. Inclusion criteria were a definitive diagnosis of acute pancreatitis based on clinical features (characteristic abdominal pain), laboratory findings (serum amylase or lipase elevated more than three times the normal level), and/or imaging evidence. Patients with chronic underlying conditions such as diabetes, chronic renal or hepatic failure, advanced cardiac disease, or neoplasms were excluded to reduce confounding effects.
Results: Of the 150 patients, 89 were female (59.33%), and 61 were male (40.67%). The mean age of the patients was 53.11 years old. 62% of patients had biliary pancreatitis, and 38% had non-biliary. The prevalence of alcoholic pancreatitis in the population was 5.33%. The age of people with biliary pancreatitis was more than non-biliary. According to Ranson's criteria, 6% of patients had severe acute pancreatitis, all of whom were over 60.
Conclusion: Acute pancreatitis was more prevalent among women, particularly in the fifth decade of life, with gallstones being the leading cause. Patients with biliary pancreatitis were significantly older, and advanced age was associated with increased disease severity. Moreover, blood glucose, AST, and LDH were significantly higher in severe cases. These findings highlight the importance of early diagnosis, accurate severity assessment, and special attention to elderly patients and those with biliary pancreatitis to reduce complications and improve clinical outcomes.
Neda Faraji, Mahbobeh Alizadeh, Asghar Ghorbani, Hadiseh Hosami Roodsari , Samane Akbarpour , Mohammad Arefi,
Volume 82, Issue 11 (February 2025)
Volume 82, Issue 11 (February 2025)
Abstract
Background: This study aimed to evaluate serum amylase levels in hospitalized COVID-19 patients and investigate its association with disease prognosis. Elevated serum amylase levels have been reported in some COVID-19 patients, particularly in severe cases. This increase may indicate pancreatic involvement (pancreatitis) due to viral infection. This cross-sectional study aimed to evaluate the role of serum amylase levels as a prognostic marker in COVID-19 patients.
Methods: This descriptive cross-sectional study was conducted on 150 hospitalized patients with confirmed COVID-19 at Baharloo Hospital, Tehran, over a one-year period (July 2021–July 2022). The results showed that 20% of patients (30 out of 150) had elevated serum amylase levels. Patients with high amylase levels had significantly longer hospital stays (mean 14 days vs. 8 days) and higher mortality rates (15% vs. 5%). Additionally, these patients were more likely to require intensive care (25% vs. 10%). Statistical analysis revealed that elevated serum amylase levels were independently associated with poorer clinical outcomes.
Results: These results have important clinical implications for patient management. Routine measurement of serum amylase at admission could help identify high-risk patients who may benefit from closer monitoring and early intervention. Further research is needed to determine whether specific treatments for pancreatic involvement could improve outcomes in these patients.
Conclusion: These findings suggest that measuring serum amylase levels at admission can serve as a simple and accessible marker for identifying high-risk patients. Elevated amylase in COVID-19 patients is an important biological indicator of multi-organ involvement (pancreas and kidney) and severe inflammation, which is associated with worse prognosis and higher mortality. Monitoring this marker may aid clinical decision-making and improve patient outcomes
Methods: This descriptive cross-sectional study was conducted on 150 hospitalized patients with confirmed COVID-19 at Baharloo Hospital, Tehran, over a one-year period (July 2021–July 2022). The results showed that 20% of patients (30 out of 150) had elevated serum amylase levels. Patients with high amylase levels had significantly longer hospital stays (mean 14 days vs. 8 days) and higher mortality rates (15% vs. 5%). Additionally, these patients were more likely to require intensive care (25% vs. 10%). Statistical analysis revealed that elevated serum amylase levels were independently associated with poorer clinical outcomes.
Results: These results have important clinical implications for patient management. Routine measurement of serum amylase at admission could help identify high-risk patients who may benefit from closer monitoring and early intervention. Further research is needed to determine whether specific treatments for pancreatic involvement could improve outcomes in these patients.
Conclusion: These findings suggest that measuring serum amylase levels at admission can serve as a simple and accessible marker for identifying high-risk patients. Elevated amylase in COVID-19 patients is an important biological indicator of multi-organ involvement (pancreas and kidney) and severe inflammation, which is associated with worse prognosis and higher mortality. Monitoring this marker may aid clinical decision-making and improve patient outcomes
Farkhondeh Ajdari, Abolfazl Gheshlaghi , Aida Shakiba, Shirin Haghighat, Marzieh Jamalidoust, Jamal Sarvari ,
Volume 82, Issue 11 (February 2025)
Volume 82, Issue 11 (February 2025)
Abstract
Background: The exact cause chronic lymphocytic leukemia (CLL) is still unknown. Cytomegalovirus (CMV) may play a role in the development of CLL, Therefore, the aim of this study is to investigate the frequency of CMV in patients with CLL and its relationship with blood and genetic factors.
Methods: This cross-sectional study was conducted between April 2020 and October 2022 on 40 CLL patients that referred to Dr. Daneshbod Pathobiology Laboratory (Shiraz, Iran). After taking blood and separating the buffy coat, viral DNA was extracted using a commercial DNA extraction kit and the CMV burden was measured using Real-time PCR assay. Moreover, a blood cell count test was performed. The amount of lactate dehydrogenase of the serum was measured using the kit. Also, common chromosomal disorders and CD38 marker related data were extracted from the file patients. SPSS software and Student's t-test were used to result analysis.
Results: The mean age of the patients was 62.25 ± 10.49 years. Of the 40 patients, 28 were men (70%). The average number of white blood cells was 46.06±1.49* 109, which was significantly higher in women than in men (p=0.031). Real-time PCR results showed that two patients (5%) have detectable amounts of CMV virus genome. The level of lactate dehydrogenase, CD38 marker, and the number of malignant cells in male and female patients did not differ significantly (p=0.362). Moreover, chromosomal abnormalities include deletions in 11q (ATM) and 17P (TP53), were observed in 3 (7.5%) and 4 (10%) patients, respectively.
Conclusion: Our finding indicated the CMV might not involve in the pathogenesis of CLL disease. More studies are recommended for clarify this finding.
Methods: This cross-sectional study was conducted between April 2020 and October 2022 on 40 CLL patients that referred to Dr. Daneshbod Pathobiology Laboratory (Shiraz, Iran). After taking blood and separating the buffy coat, viral DNA was extracted using a commercial DNA extraction kit and the CMV burden was measured using Real-time PCR assay. Moreover, a blood cell count test was performed. The amount of lactate dehydrogenase of the serum was measured using the kit. Also, common chromosomal disorders and CD38 marker related data were extracted from the file patients. SPSS software and Student's t-test were used to result analysis.
Results: The mean age of the patients was 62.25 ± 10.49 years. Of the 40 patients, 28 were men (70%). The average number of white blood cells was 46.06±1.49* 109, which was significantly higher in women than in men (p=0.031). Real-time PCR results showed that two patients (5%) have detectable amounts of CMV virus genome. The level of lactate dehydrogenase, CD38 marker, and the number of malignant cells in male and female patients did not differ significantly (p=0.362). Moreover, chromosomal abnormalities include deletions in 11q (ATM) and 17P (TP53), were observed in 3 (7.5%) and 4 (10%) patients, respectively.
Conclusion: Our finding indicated the CMV might not involve in the pathogenesis of CLL disease. More studies are recommended for clarify this finding.
Mahmoud Khodabandeh, Mohammadreza Abdolsalehi , Mojtaba Gorji,
Volume 82, Issue 11 (February 2025)
Volume 82, Issue 11 (February 2025)
Abstract
Background: Congenital tuberculosis is a rare but serious disease in neonates and infants that often presents with nonspecific respiratory symptoms. Pulmonary involvement in tuberculosis can have similar manifestations to bacterial pneumonia with common microorganisms. In case of failure to respond to treatment in pneumonia, tuberculosis infection should be considered. The aim of this study was to present a two-month-old infant suspected of bacterial pneumonia, who was ultimately diagnosed with tuberculosis.
Case Presentation: This case report describes a two-month-old infant diagnosed with tuberculosis who presented to the emergency department with severe respiratory distress. Despite repeated hospitalizations and initial antibiotic therapy, the patient's symptoms did not improve and he was eventually referred to the Children's Medical Center. Chest radiography showed diffuse reticular opacities, alveolar opacities in the lower lobe of the right lung, and parahilar opacities in the left lung. Initial laboratory tests included elevated CRP and ESR levels, elevated white blood cell count, thrombocytosis, and abnormal arterial blood gases. Despite three negative gastric aspirate samples for tuberculosis, bronchoscopy was performed and a Bronchoalveolar Lavage (BAL) sample was sent for Polymerase Chain Reaction (PCR) testing for Mycobacterium tuberculosis, which was positive, confirming the diagnosis of tuberculosis. Careful evaluation of the parents revealed that although they had no respiratory symptoms, the mother had imaging evidence of tuberculosis, and her AFB test was positive. The patient showed significant clinical improvement after starting anti-tuberculosis therapy. A six-month follow-up confirmed complete recovery.
Conclusion: In infants with recurrent pneumonia and failure to respond to initial treatments, tuberculosis should be considered as a possible diagnosis.
Case Presentation: This case report describes a two-month-old infant diagnosed with tuberculosis who presented to the emergency department with severe respiratory distress. Despite repeated hospitalizations and initial antibiotic therapy, the patient's symptoms did not improve and he was eventually referred to the Children's Medical Center. Chest radiography showed diffuse reticular opacities, alveolar opacities in the lower lobe of the right lung, and parahilar opacities in the left lung. Initial laboratory tests included elevated CRP and ESR levels, elevated white blood cell count, thrombocytosis, and abnormal arterial blood gases. Despite three negative gastric aspirate samples for tuberculosis, bronchoscopy was performed and a Bronchoalveolar Lavage (BAL) sample was sent for Polymerase Chain Reaction (PCR) testing for Mycobacterium tuberculosis, which was positive, confirming the diagnosis of tuberculosis. Careful evaluation of the parents revealed that although they had no respiratory symptoms, the mother had imaging evidence of tuberculosis, and her AFB test was positive. The patient showed significant clinical improvement after starting anti-tuberculosis therapy. A six-month follow-up confirmed complete recovery.
Conclusion: In infants with recurrent pneumonia and failure to respond to initial treatments, tuberculosis should be considered as a possible diagnosis.
Ali Mohammad Mosadeghrad, Parvaneh Isfahani,
Volume 82, Issue 11 (February 2025)
Volume 82, Issue 11 (February 2025)
Abstract
Fatemeh Habibollahi, Ghazaleh Eslamian, Kiana Hasibi , Sepehr Khoshbaf Khiabanian , Bentolhosna Dehghan Nayeri , Aref Adeli Mosabbeb ,
Volume 82, Issue 12 (March 2025)
Volume 82, Issue 12 (March 2025)
Abstract
Background: Infertility is defined as the failure to achieve pregnancy after one year or more of regular unprotected sexual intercourse. Assisted reproductive technologies (ART) represent a key therapeutic approach for infertile couples. Bisphenol-A (BPA), a compound found in plastic polymer products, has been associated with increased infertility risk. This systematic review addresses whether BPA affects ART outcomes.
Methods: A comprehensive and systematic literature search was conducted across PubMed, Google Scholar, Web of Science, and Scopus up to December 2024 without any language or time restrictions. The search strategy combined relevant keywords and medical subject headings such as “bisphenol A,” “infertility,” “assisted reproductive technology,” “in vitro fertilization,” and “embryo implantation.” All human studies assessing the relationship between BPA exposure and ART outcomes were considered. After removing duplicates and screening titles and abstracts, 23 studies that met the inclusion criteria were reviewed in detail. The selected studies included cross-sectional and prospective cohort designs, and data on sample size, BPA measurement methods, and reproductive endpoints were extracted for qualitative synthesis.
Results: The reviewed studies consistently indicate that exposure to BPA is associated with adverse reproductive outcomes, particularly in women undergoing IVF treatment. Evidence suggests that higher BPA levels correlate with fewer retrieved oocytes, reduced oocyte maturation rates, and impaired ovarian response to hormonal stimulation. Several studies also observed reduced estradiol concentrations and lower fertilization and cleavage rates, leading to decreased implantation success and clinical pregnancy rates. In addition, diminished ovarian reserve markers, such as anti-Müllerian hormone and antral follicle count, have been negatively influenced by BPA exposure. Male factors were also affected, with reports of decreased sperm motility, abnormal morphology, and increased DNA fragmentation, which could compromise embryo quality and early development. Variability in study methodologies, small sample sizes, and differences in BPA detection techniques, however, make direct comparison challenging.
Conclusion: Current evidence supports an inverse association between BPA exposure and fertility outcomes, but further prospective studies with larger sample sizes and more precise measurement methods are needed.
Methods: A comprehensive and systematic literature search was conducted across PubMed, Google Scholar, Web of Science, and Scopus up to December 2024 without any language or time restrictions. The search strategy combined relevant keywords and medical subject headings such as “bisphenol A,” “infertility,” “assisted reproductive technology,” “in vitro fertilization,” and “embryo implantation.” All human studies assessing the relationship between BPA exposure and ART outcomes were considered. After removing duplicates and screening titles and abstracts, 23 studies that met the inclusion criteria were reviewed in detail. The selected studies included cross-sectional and prospective cohort designs, and data on sample size, BPA measurement methods, and reproductive endpoints were extracted for qualitative synthesis.
Results: The reviewed studies consistently indicate that exposure to BPA is associated with adverse reproductive outcomes, particularly in women undergoing IVF treatment. Evidence suggests that higher BPA levels correlate with fewer retrieved oocytes, reduced oocyte maturation rates, and impaired ovarian response to hormonal stimulation. Several studies also observed reduced estradiol concentrations and lower fertilization and cleavage rates, leading to decreased implantation success and clinical pregnancy rates. In addition, diminished ovarian reserve markers, such as anti-Müllerian hormone and antral follicle count, have been negatively influenced by BPA exposure. Male factors were also affected, with reports of decreased sperm motility, abnormal morphology, and increased DNA fragmentation, which could compromise embryo quality and early development. Variability in study methodologies, small sample sizes, and differences in BPA detection techniques, however, make direct comparison challenging.
Conclusion: Current evidence supports an inverse association between BPA exposure and fertility outcomes, but further prospective studies with larger sample sizes and more precise measurement methods are needed.
Naseh Yousefi, Katayoun Moradi, Korosh Mansouri , Simin Sajadi , Masoud Torabi ,
Volume 82, Issue 12 (March 2025)
Volume 82, Issue 12 (March 2025)
Abstract
Background: The most common cause of Shoulder pain is inflammation in the subacromial bursa. Intra-bursal corticosteroid injections are one of the most common methods in cases of bursitis. Recently, botulinum toxin A injection has also been used as a safe treatment in these patients. This injection does not have many of corticosteroid disadvantages. The most important disadvantages of this method are its cost. This study was performed to compare corticosteroids with botulinum toxin A in the treatment of subacromial bursitis by single injection.
Methods: This study is a prospective randomized clinical trial performed on patients with rotator cuff tendinopathy who were referred to the physical medicine and rehabilitation clinic of Iran University of Medical Sciences from November 2020 to October 2021. 54 patients with signs and symptoms of rotator cuff tendinopathy, were randomly assigned to one of the two groups of botulinum toxin A or corticosteroid injection. Routine treatment included exercise training for all patients. Patient's symptoms were assessed using VAS, Constant Score and SPADI criteria before treatment, two weeks and two months after injection.
Results: In the VAS study, both groups showed an improvement over baseline (P=0.000), which was significantly greater in the corticosteroid group. VAS between the first and second follow-up showed a decrease in the botulinum toxin A group and an increase in the corticosteroid group. In the Constant Score and SPADI study, both groups showed an improvement over baseline.
Conclusion: This study showed that a single-session injection of botulinum toxin A is less effective than corticosteroid in controlling symptoms of these patients. However, the therapeutic effect of botulinum toxin A, remains 2 months and unlike corticosteroid, has more reliability and durability.
Methods: This study is a prospective randomized clinical trial performed on patients with rotator cuff tendinopathy who were referred to the physical medicine and rehabilitation clinic of Iran University of Medical Sciences from November 2020 to October 2021. 54 patients with signs and symptoms of rotator cuff tendinopathy, were randomly assigned to one of the two groups of botulinum toxin A or corticosteroid injection. Routine treatment included exercise training for all patients. Patient's symptoms were assessed using VAS, Constant Score and SPADI criteria before treatment, two weeks and two months after injection.
Results: In the VAS study, both groups showed an improvement over baseline (P=0.000), which was significantly greater in the corticosteroid group. VAS between the first and second follow-up showed a decrease in the botulinum toxin A group and an increase in the corticosteroid group. In the Constant Score and SPADI study, both groups showed an improvement over baseline.
Conclusion: This study showed that a single-session injection of botulinum toxin A is less effective than corticosteroid in controlling symptoms of these patients. However, the therapeutic effect of botulinum toxin A, remains 2 months and unlike corticosteroid, has more reliability and durability.
Seyede Hakimeh Sajadi, Mohadeseh Karimi ,
Volume 82, Issue 12 (March 2025)
Volume 82, Issue 12 (March 2025)
Abstract
Background: Approximately 16% of all female cancers. Due to its high prevalence and considerable impact on patient survival, comprehensive evaluation of histopathological and molecular features is crucial for improving disease management. This study aimed to analyze the histopathological spectrum and immunohistochemical (IHC) molecular subtypes of invasive breast tumors in an Iranian population, with the ultimate goal of guiding tailored therapeutic strategies.
Methods: This retrospective cross-sectional study was conducted between 2021 and 2023 at Shahid Mohammadi Hospital, Bandar Abbas, Iran. Initially, 110 female patients diagnosed with invasive breast carcinoma were evaluated. After applying exclusion criteria (bilateral breast cancer, in-situ carcinoma, prior neoadjuvant chemotherapy, or inadequate pathological specimens), 10 patients were excluded, leaving 100 cases for final analysis. Demographic and clinical data were collected from medical records, while histopathological assessment was performed using hematoxylin-eosin (H&E) staining. Immunohistochemistry was applied to evaluate estrogen receptor (ER), progesterone receptor (PR), HER2, and Ki-67 expression, enabling classification into molecular subtypes: Luminal A, Luminal B, HER2-enriched, and Basal-like. Tumor grade and stage were determined according to AJCC/UICC criteria. Statistical analysis was performed using SPSS v21, with significance set at P<0.05.
Results: The patients’ ages ranged from 26 to 73 years, with a mean age of 49.5 years. Histopathologically, invasive ductal carcinoma accounted for 89% of cases, followed by lobular (5%), medullary (3%), and other rare subtypes (3%). Molecular classification revealed 9% Luminal A, 65% Luminal B, 11% HER2-enriched, and 15% Basal-like. A significant association was found between tumor grade and molecular subtype (P=0.001). Luminal B tumors showed the highest frequency of grade III lesions, axillary lymph node metastasis, and advanced tumor stage (II-III), indicating more aggressive biological behavior compared to Luminal A.
Conclusion: This study confirmed that invasive ductal carcinoma is the predominant histological type of breast cancer, with Luminal B being the most prevalent molecular subtype in the studied population. The findings highlight the importance of molecular profiling for accurate prognostication and treatment planning. In particular, the aggressive features of Luminal B tumors emphasize the need for more intensive therapeutic approaches. Incorporating routine IHC-based subtyping into breast cancer management protocols could significantly enhance patient outcomes and support the implementation of precision oncology in Iran.
Methods: This retrospective cross-sectional study was conducted between 2021 and 2023 at Shahid Mohammadi Hospital, Bandar Abbas, Iran. Initially, 110 female patients diagnosed with invasive breast carcinoma were evaluated. After applying exclusion criteria (bilateral breast cancer, in-situ carcinoma, prior neoadjuvant chemotherapy, or inadequate pathological specimens), 10 patients were excluded, leaving 100 cases for final analysis. Demographic and clinical data were collected from medical records, while histopathological assessment was performed using hematoxylin-eosin (H&E) staining. Immunohistochemistry was applied to evaluate estrogen receptor (ER), progesterone receptor (PR), HER2, and Ki-67 expression, enabling classification into molecular subtypes: Luminal A, Luminal B, HER2-enriched, and Basal-like. Tumor grade and stage were determined according to AJCC/UICC criteria. Statistical analysis was performed using SPSS v21, with significance set at P<0.05.
Results: The patients’ ages ranged from 26 to 73 years, with a mean age of 49.5 years. Histopathologically, invasive ductal carcinoma accounted for 89% of cases, followed by lobular (5%), medullary (3%), and other rare subtypes (3%). Molecular classification revealed 9% Luminal A, 65% Luminal B, 11% HER2-enriched, and 15% Basal-like. A significant association was found between tumor grade and molecular subtype (P=0.001). Luminal B tumors showed the highest frequency of grade III lesions, axillary lymph node metastasis, and advanced tumor stage (II-III), indicating more aggressive biological behavior compared to Luminal A.
Conclusion: This study confirmed that invasive ductal carcinoma is the predominant histological type of breast cancer, with Luminal B being the most prevalent molecular subtype in the studied population. The findings highlight the importance of molecular profiling for accurate prognostication and treatment planning. In particular, the aggressive features of Luminal B tumors emphasize the need for more intensive therapeutic approaches. Incorporating routine IHC-based subtyping into breast cancer management protocols could significantly enhance patient outcomes and support the implementation of precision oncology in Iran.
Saeideh Baghaei Barjini , Mozhgan Masoudi , Soheila Pirdadeh Beiranvand , Ashraf Moieni , Soodabeh Zare,
Volume 82, Issue 12 (March 2025)
Volume 82, Issue 12 (March 2025)
Abstract
Background: Intracytoplasmic sperm injection (ICSI) is one of the infertility treatments that may lead to various levels of stress and anxiety in women at different stages. Multiple factors may contribute to these psychological disorders. This study aimed to assess the levels of stress, anxiety, and depression before embryo transfer in women undergoing ICSI.
Methods: This cross-sectional analytical study was conducted from July to October 2024 on 70 women candidates for ICSI at Arash Women's Hospital in Tehran, prior to embryo transfer. Participants were selected through convenience sampling. Inclusion criteria included at least three years of infertility, no background in psychology or attendance in counseling sessions, no major physical or mental illnesses, and no severe stressful events in the past six months (such as the death of first-degree relatives or major accidents). Participants could withdraw from the study at any time. The DASS-21 (Depression, Anxiety, Stress Scale) was used to assess stress and anxiety levels. Based on the DASS-21, stress scores of 0-14 were considered normal or mild, 15-18 mild, 19-25 moderate, 26-32 severe, and ≥33 very severe. For anxiety, scores of 0-7 were considered normal or mild, 8-9 mild, 10-14 moderate, 15-19 severe, and ≥20 very severe. The validity of the tool was confirmed by Antony and validated in Iran by Sahebi.
Results: Among the 70 participants, 92.8% experienced stress and anxiety. The mean stress score was 20.77±4.87, and the mean anxiety score was 11.70±4.23, indicating moderate levels. Women over 42 years old had significantly lower stress scores compared to others (P<0.001). Conversely, women under 30 showed significantly higher anxiety scores (P<0.01). No significant associations were found between stress/anxiety and other demographic or infertility-related factors (P>0.05).
Conclusion: The findings indicate that women undergoing embryo transfer in ICSI procedures commonly experience stress and anxiety. Therefore, appropriate psychological interventions are recommended to support this group during treatment.
Methods: This cross-sectional analytical study was conducted from July to October 2024 on 70 women candidates for ICSI at Arash Women's Hospital in Tehran, prior to embryo transfer. Participants were selected through convenience sampling. Inclusion criteria included at least three years of infertility, no background in psychology or attendance in counseling sessions, no major physical or mental illnesses, and no severe stressful events in the past six months (such as the death of first-degree relatives or major accidents). Participants could withdraw from the study at any time. The DASS-21 (Depression, Anxiety, Stress Scale) was used to assess stress and anxiety levels. Based on the DASS-21, stress scores of 0-14 were considered normal or mild, 15-18 mild, 19-25 moderate, 26-32 severe, and ≥33 very severe. For anxiety, scores of 0-7 were considered normal or mild, 8-9 mild, 10-14 moderate, 15-19 severe, and ≥20 very severe. The validity of the tool was confirmed by Antony and validated in Iran by Sahebi.
Results: Among the 70 participants, 92.8% experienced stress and anxiety. The mean stress score was 20.77±4.87, and the mean anxiety score was 11.70±4.23, indicating moderate levels. Women over 42 years old had significantly lower stress scores compared to others (P<0.001). Conversely, women under 30 showed significantly higher anxiety scores (P<0.01). No significant associations were found between stress/anxiety and other demographic or infertility-related factors (P>0.05).
Conclusion: The findings indicate that women undergoing embryo transfer in ICSI procedures commonly experience stress and anxiety. Therefore, appropriate psychological interventions are recommended to support this group during treatment.
Ramyar Rahimi Darehbagh , Ebrahim Khajeh, Daem Roshani , Farhang Safarnejhad,
Volume 82, Issue 12 (March 2025)
Volume 82, Issue 12 (March 2025)
Abstract
Background: Surgical site infections (SSIs) represent one of the most common and significant complications following surgical interventions. These infections not only prolong hospital stay and recovery but also impose a considerable economic burden on healthcare systems and patients. Reducing the risk of SSIs is therefore a major focus of perioperative care, and several strategies have been proposed to minimize their occurrence. One of the most widely practiced preventive measures is preoperative skin antisepsis, aimed at lowering the microbial load at the surgical site. Among available antiseptics, chlorhexidine has been shown to have broad-spectrum antimicrobial activity and sustained effectiveness. This study was designed to evaluate the effect of preoperative chlorhexidine showers on the incidence of SSIs in patients undergoing elective inguinal hernia surgery.
Methods: A randomized clinical trial was carried out in 2019 at Kowsar Hospital, Sanandaj. A total of 300 patients scheduled for elective inguinal hernia repair were enrolled and randomly assigned into three groups of 100 participants each. The intervention group was instructed to take a shower with 4% chlorhexidine solution on the night before surgery. Control group 1 took a routine bath using regular detergents, while control group 2 did not bathe prior to the operation. All patients were monitored for the occurrence of superficial SSIs for up to 30 days postoperatively.
Results: Among the 300 patients included in the study, 12 cases (4%) of superficial SSIs were documented. The distribution of infections varied significantly across the groups: one case in the chlorhexidine group, three cases in the regular detergent group, and eight cases in the group that did not shower. Statistical analysis confirmed that the difference in infection rates among the groups was significant (P=0.034).
Conclusion: The findings of this clinical trial demonstrate that preoperative showers with 4% chlorhexidine solution are effective in reducing the incidence of SSIs in patients undergoing elective inguinal hernia surgery. Implementing this simple, low-cost intervention may therefore be a valuable strategy in routine surgical practice to enhance patient outcomes and reduce postoperative complications.
Sahar Karimpour Reyhan , Mahsa Abbaszadeh, Alireza Esteghamati ,
Volume 83, Issue 1 (April 2025)
Volume 83, Issue 1 (April 2025)
Abstract
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Hyperthyroidism is one of the most important endocrine disorders, characterized by increased activity of the thyroid gland and excessive production of thyroid hormones. These hormones play a key role in regulating the body’s metabolism; therefore, their excess leads to a wide range of clinical manifestations. The most common symptoms include anxiety, restlessness, weight loss despite normal or even increased appetite, palpitations, excessive sweating, fine tremors of the hands, sleep disturbances, and heat intolerance. Some patients may also experience mood changes such as irritability and nervousness. On physical examination, rapid tendon reflexes, tachycardia, moist and thin skin, and in many cases the presence of goiter (thyroid enlargement) may be observed. The condition is more common in women than men and is most frequently seen between the ages of 20 and 50 years. Once hyperthyroidism is confirmed, the underlying cause of thyrotoxicosis must be determined. The most common cause is Graves’ disease, an autoimmune disorder that leads to diffuse thyroid enlargement and overproduction of hormones. Toxic multinodular goiter and solitary toxic adenoma are other important causes. For definitive diagnosis, blood tests measuring TSH, T3, and T4 are essential. In hyperthyroidism, TSH is typically suppressed while T3 and T4 are elevated. In addition to laboratory testing, thyroid ultrasound can help evaluate the structure of the gland, and a thyroid radioactive iodine uptake scan can further differentiate between different causes and determine disease activity. Several treatment options are available for managing hyperthyroidism. Antithyroid drugs such as methimazole or propylthiouracil inhibit the synthesis of thyroid hormones. Beta-blockers are often prescribed to control cardiovascular symptoms and reduce palpitations. Radioactive iodine therapy is a common and effective method that destroys the overactive thyroid tissue. In rare cases, or when other treatments fail, thyroidectomy (surgical removal of part or all of the thyroid gland) may be required. Overall, hyperthyroidism is a manageable condition, but it requires accurate diagnosis, careful selection of therapy, and close follow-up with a specialist. Patient cooperation and adherence to treatment play a crucial role in controlling symptoms and preventing long-term complications. This review will focus on describing the symptoms, causes, diagnostic methods, and treatment options.
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Zakieh Vahedian Ardakani , Mehran Zarei-Ghanavati , Hamid Riazi-Esfahani , Seyed Mehdi Tabatabaei , Mohammad Reza Mehrabi Bahar, Sadegh Ghafarian, Ahmad Masoomi,
Volume 83, Issue 1 (April 2025)
Volume 83, Issue 1 (April 2025)
Abstract
Artificial intelligence (AI) has emerged as a transformative force in modern medicine, with ophthalmology standing at the forefront of its clinical integration. Among ophthalmic disorders, glaucoma—a leading cause of irreversible blindness worldwide—presents unique opportunities and challenges for AI-based solutions due to its chronic, progressive nature and reliance on multimodal data, including structural and functional assessments. This review article offers a comprehensive synthesis of the current and emerging roles of AI in the detection, monitoring, and management of glaucoma. AI algorithms, particularly deep learning and machine learning models, have demonstrated exceptional capabilities in interpreting fundus photographs, optical coherence tomography (OCT) images, and visual field data to identify glaucomatous damage. These systems often approach or even exceed the diagnostic performance of human experts. Moreover, AI has shown significant promise in facilitating large-scale population-based screening, improving early detection rates, and addressing disparities in access to subspecialty care, particularly in low-resource and remote settings. In the monitoring of disease progression, AI tools are being developed to detect subtle structural or functional changes over time, predict future visual outcomes, and support more precise and individualized treatment decisions. Despite these advancements, the widespread clinical adoption of AI in glaucoma care faces several critical barriers. Key limitations include poor generalizability of models across diverse populations, imaging devices, and clinical settings; scarcity of well-annotated, high-quality, and demographically representative datasets; and a lack of transparency and interpretability in algorithmic decision-making—commonly referred to as the “black box” problem. Ethical concerns, regulatory uncertainty, integration challenges within existing healthcare infrastructures, and medico-legal accountability also require thoughtful resolution before AI can be reliably deployed in clinical practice. This review critically evaluates the strengths, limitations, and real-world potential of AI technologies in glaucoma. It provides clinicians, researchers, and healthcare policymakers with a balanced and up-to-date perspective, highlighting promising avenues for future research, including explainable AI, federated learning, multi-modal data integration, and longitudinal validation studies. By fostering a deeper understanding of both the opportunities and challenges associated with AI, this article aims to guide the responsible, equitable, and evidence-based integration of AI into comprehensive glaucoma care.
Reza Sahraei, Anahita Haghjoo , Hasan Zabetian, Mansour Deylami, Rahil Haghjoo, Fatemeh Khadempir, Navid Kalani ,
Volume 83, Issue 1 (April 2025)
Volume 83, Issue 1 (April 2025)
Abstract
Background: Spinal anesthesia is a common method for elective cesarean sections; however, complications such as shivering and nausea may affect postoperative recovery quality. Bupivacaine is a standard drug used in this procedure, but its combination with opioids like sufentanil may have beneficial effects in reducing these complications. This study aimed to compare the incidence of shivering and nausea in women undergoing elective cesarean section who received either bupivacaine alone or a bupivacaine-sufentanil combination.
Methods: The present study was a double-blind randomized clinical trial conducted over a 6-month period from April 2021 to October 2021 on 30 patients undergoing elective cesarean section with spinal anesthesia at Motahari Hospital in Jahrom city. Patients were randomly assigned using a random number table into two groups: bupivacaine alone and bupivacaine-sufentanil combination. The frequency of nausea, vomiting, and shivering was recorded at different time points: before spinal anesthesia, after spinal anesthesia, 3 minutes before delivery, immediately after delivery, at 15, 30, and 45 minutes, upon recovery room admission, and upon discharge from recovery. The data analysis was performed using descriptive statistics indicators (frequency, percentage, mean, and standard deviation) and inferential statistical tests (t-test, Mann-Whitney, chi-square and Friedman) using SPSS software version 21. A significance level of p < 0.05 was considered.
Results: In the bupivacaine-sufentanil group, the highest frequency of shivering occurred at 30 minutes post-spinal anesthesia (20%) and upon recovery room admission (26.7%). In the bupivacaine-alone group, the highest frequency was observed upon recovery room admission (33.3%) and at discharge from recovery (26.7%). The highest nausea frequency was 33.3% in the bupivacaine-sufentanil group and 40% in the bupivacaine group at 3 minutes before delivery. However, no statistically significant difference was found between the two groups at different time points.
Conclusion: The present study showed that adding low-dose sufentanil to bupivacaine in spinal anesthesia protocols, while potentially having minor clinical effects on certain complications, did not lead to a significant difference in the incidence of shivering and nausea. Therefore, for more precise clinical decision-making regarding drug combinations in regional anesthesia, further studies with larger sample sizes and different drug dosages are recommended.
Methods: The present study was a double-blind randomized clinical trial conducted over a 6-month period from April 2021 to October 2021 on 30 patients undergoing elective cesarean section with spinal anesthesia at Motahari Hospital in Jahrom city. Patients were randomly assigned using a random number table into two groups: bupivacaine alone and bupivacaine-sufentanil combination. The frequency of nausea, vomiting, and shivering was recorded at different time points: before spinal anesthesia, after spinal anesthesia, 3 minutes before delivery, immediately after delivery, at 15, 30, and 45 minutes, upon recovery room admission, and upon discharge from recovery. The data analysis was performed using descriptive statistics indicators (frequency, percentage, mean, and standard deviation) and inferential statistical tests (t-test, Mann-Whitney, chi-square and Friedman) using SPSS software version 21. A significance level of p < 0.05 was considered.
Results: In the bupivacaine-sufentanil group, the highest frequency of shivering occurred at 30 minutes post-spinal anesthesia (20%) and upon recovery room admission (26.7%). In the bupivacaine-alone group, the highest frequency was observed upon recovery room admission (33.3%) and at discharge from recovery (26.7%). The highest nausea frequency was 33.3% in the bupivacaine-sufentanil group and 40% in the bupivacaine group at 3 minutes before delivery. However, no statistically significant difference was found between the two groups at different time points.
Conclusion: The present study showed that adding low-dose sufentanil to bupivacaine in spinal anesthesia protocols, while potentially having minor clinical effects on certain complications, did not lead to a significant difference in the incidence of shivering and nausea. Therefore, for more precise clinical decision-making regarding drug combinations in regional anesthesia, further studies with larger sample sizes and different drug dosages are recommended.
Tahereh Parsajam , Behnam Reza Makhsoosi, Ali Najafpour, Kimia Fathi,
Volume 83, Issue 1 (April 2025)
Volume 83, Issue 1 (April 2025)
Abstract
Background: Thyroid hormones play a key role in the development of various organs of the body. The breast and thyroid are hormone-responsive organs that are closely related to changes in endocrine activity and glandular diseases. Breast cancer is the most common cancer in women and the second leading cause of cancer-related death. Due to the inconsistencies in the relationship between breast cancer and thyroid diseases and the lack of regional data, the present study was designed and conducted with the aim of investigating the prevalence of various thyroid disorders in patients with breast cancer and its relationship with the type of breast cancer and age.
Methods: In this prospective study, we examined 50 women with breast cancer who had undergone surgery after surgery. The location of this study was Imam Reza Hospital in Kermanshah and the duration of this study was 12 months from the beginning of March 2023 to the end of March 2024. Patient information included: age, histopathological type of cancer, and thyroid test results including serum TSH, FT4, and ATPO levels, were recorded and reviewed.
Results: Based on the results obtained, it was shown that the average age of people with thyroid disorders in patients with breast cancer was 42.88 and the standard deviation was 11.313. Also, there was no significant difference between the age of people and thyroid disorders in patients with breast cancer (P-value < 0.89). In the study of thyroid disorders in patients with breast cancer, it was shown that there was a significant relationship between patients with breast cancer and the amount of TSH and the amount of FT4. This means that people with breast cancer had an increase in the amount of TSH and the amount of FT4. However, there was no significant relationship between patients with breast cancer and the amount of ATPO (P-value < 0.319).
Conclusion: Thyroid disorders are more prevalent in patients with breast cancer than in the normal population, and given the relationship between the types of thyroid disorders and the type of breast cancer histopathology, these results can be used and screening methods can be used more effectively in those who have risk factors for breast cancer for early diagnosis and treatment of the disease.
Methods: In this prospective study, we examined 50 women with breast cancer who had undergone surgery after surgery. The location of this study was Imam Reza Hospital in Kermanshah and the duration of this study was 12 months from the beginning of March 2023 to the end of March 2024. Patient information included: age, histopathological type of cancer, and thyroid test results including serum TSH, FT4, and ATPO levels, were recorded and reviewed.
Results: Based on the results obtained, it was shown that the average age of people with thyroid disorders in patients with breast cancer was 42.88 and the standard deviation was 11.313. Also, there was no significant difference between the age of people and thyroid disorders in patients with breast cancer (P-value < 0.89). In the study of thyroid disorders in patients with breast cancer, it was shown that there was a significant relationship between patients with breast cancer and the amount of TSH and the amount of FT4. This means that people with breast cancer had an increase in the amount of TSH and the amount of FT4. However, there was no significant relationship between patients with breast cancer and the amount of ATPO (P-value < 0.319).
Conclusion: Thyroid disorders are more prevalent in patients with breast cancer than in the normal population, and given the relationship between the types of thyroid disorders and the type of breast cancer histopathology, these results can be used and screening methods can be used more effectively in those who have risk factors for breast cancer for early diagnosis and treatment of the disease.
Ali Mohammad Mosadeghrad, Shabnam Afraz,
Volume 83, Issue 1 (April 2025)
Volume 83, Issue 1 (April 2025)
Abstract
Shahram Shafa, Mehrdad Sayadinia, Bibi Mona Razavi, Tayyebeh Zarei , Maryam Ziyaei , Mansour Deylami,
Volume 83, Issue 2 (May 2025)
Volume 83, Issue 2 (May 2025)
Abstract
Background: Controlling patients' anxiety before surgery reduces the possibility of postoperative problems and increases the possibility of patient participation and cooperation in the postoperative care and treatment plan.
Methods: This study uses a review approach to investigate non-pharmacological methods of anxiety management in patients undergoing orthopedic surgery. The systematic search involves several key steps. Literature search: A thorough search was conducted in PubMed, Sciences Direct, Scopus, Magiran, Sid, and Google Scholar databases. The search was refined using keywords such as “aromatherapy,” “music therapy,” “massage,” “educational intervention,” “educational film,” and “sound of the Quran” and their English equivalents to identify relevant studies published in the past ten years. Inclusion criteria included studies on orthopedic surgery, Persian and English articles, and original articles. Exclusion criteria included studies outside the specified time frame or studies that deviated from the defined focus. In this review, we conclude by summarizing key aspects of the review process, emphasizing the rigorous approach applied in study selection, data extraction, and synthesis.
Results: The results of the present study showed that the non-pharmacological methods used to control or reduce anxiety in orthopedic surgery include methods; Music therapy, the sound of the Quran, relaxation techniques, back massage, educational intervention, educational video, awareness and training before surgery and aromatherapy (chamomile, lemon, rose, valerian, cardamom, cinnamon, calendula, lavender, lemon sour).
Conclusion: The results of numerous and reputable research findings clearly show that the use of non-pharmacological methods plays an effective role in reducing the level of anxiety of patients before, during and after orthopedic surgery. These methods, which are generally low-cost, low-complication, and applicable in various clinical settings, include techniques such as preoperative education, music therapy, breathing and relaxation techniques, mindfulness-based interventions, psychological support, and the creation of a calm and reassuring environment. Since anxiety is a known factor in weakening the immune system, increasing postoperative pain, prolonging the recovery period, and reducing overall patient satisfaction, its management is of great importance. Therefore, by integrating and utilizing such non-invasive methods into nursing care protocols and holistic patient care programs, the detrimental and undesirable effects of anxiety after orthopedic surgery can be significantly reduced and faster recovery, a better patient experience, and more favorable clinical outcomes can be achieved.
Pourya Adibi , Somayeh Mehrpour, Reza Sahraei , Samira Zanbagh, Majid Vatankhah, Mehrdad Malekshoar, Mansour Deylami, Bibi Mona Razavi, Tayyebeh Zarei ,
Volume 83, Issue 2 (May 2025)
Volume 83, Issue 2 (May 2025)
Abstract
Background: Today, cesarean section is one of the most common surgeries performed in different countries. Shivering after surgery is one of the common complications of spinal anesthesia in cesarean surgery. Many drugs have been investigated to prevent or reduce shivering, but the ideal drug has not yet been finally approved. The purpose of this study is to investigate the effect of dexmedetomidine in preventing shivering after cesarean section surgery under spinal anesthesia in the form of a systematic review.
Methods: In this systematic review, the Persian keywords "dexmedetomidine", "spinal anesthesia", "caesarean" and dexmedetomidine" and the English keywords dexmedetomidine", "Caesarean section", "Spinal Anesthesia" "Dexmedetomidine and "C-Section" in databases PubMed, EMBASE, Cochrane Central Register of Controlled Trials (CENTRAL), Web of Science, Clinical Trials.gov and Scopus, SID, Magiran, Medlib and Google Scholar search engine, without time limit Done. Data extraction was performed independently by two authors. Study name, year of study, country, study groups, and incidence of shivering were extracted from the studies. Our primary outcome was the severity of shivering in patients. All disagreements in data extraction were resolved through discussion between the reviewers or, if not possible, by a third reviewer. Data were entered into an Excel file.
Results: In this systematic review, 19 studies were examined. The total number of patients included in the study was 2001 patients. The study range was from 2016 to 2022. The age group of most patients was between 18-45. The drugs studied in combination with dexmedetomidine in the studies included: pethidine, dexamethasone, nalbuphine, ondansetron, and morphine. The most studied drugs were pethidine and dexamethasone in three studies. In 13 studies, dexmedetomidine was more effective in controlling shivering than the other groups studied. Also, in five studies, dexmedetomidine, along with three drugs: pethidine, dexamethasone, and ondansetron, had similar effects in controlling shivering in patients. In one study, dexmedetomidine produced less anti-tremor effects than nalbuphine.
Conclusion: In the review of the studies, the results indicated that dexmedomedin is effective in preventing post-operative shivering in patients undergoing caesarean section. Therefore, it seems that the use of dexmedetomidine to prevent shivering after surgery is useful in these patients.
Methods: In this systematic review, the Persian keywords "dexmedetomidine", "spinal anesthesia", "caesarean" and dexmedetomidine" and the English keywords dexmedetomidine", "Caesarean section", "Spinal Anesthesia" "Dexmedetomidine and "C-Section" in databases PubMed, EMBASE, Cochrane Central Register of Controlled Trials (CENTRAL), Web of Science, Clinical Trials.gov and Scopus, SID, Magiran, Medlib and Google Scholar search engine, without time limit Done. Data extraction was performed independently by two authors. Study name, year of study, country, study groups, and incidence of shivering were extracted from the studies. Our primary outcome was the severity of shivering in patients. All disagreements in data extraction were resolved through discussion between the reviewers or, if not possible, by a third reviewer. Data were entered into an Excel file.
Results: In this systematic review, 19 studies were examined. The total number of patients included in the study was 2001 patients. The study range was from 2016 to 2022. The age group of most patients was between 18-45. The drugs studied in combination with dexmedetomidine in the studies included: pethidine, dexamethasone, nalbuphine, ondansetron, and morphine. The most studied drugs were pethidine and dexamethasone in three studies. In 13 studies, dexmedetomidine was more effective in controlling shivering than the other groups studied. Also, in five studies, dexmedetomidine, along with three drugs: pethidine, dexamethasone, and ondansetron, had similar effects in controlling shivering in patients. In one study, dexmedetomidine produced less anti-tremor effects than nalbuphine.
Conclusion: In the review of the studies, the results indicated that dexmedomedin is effective in preventing post-operative shivering in patients undergoing caesarean section. Therefore, it seems that the use of dexmedetomidine to prevent shivering after surgery is useful in these patients.
Majid Vatankhah, Saeed Kashani, Mohsen Sarafikhah, Bibi Mona Razavi, Mehrdad Sayadinia, Mehrdad Malekshoar,
Volume 83, Issue 2 (May 2025)
Volume 83, Issue 2 (May 2025)
Abstract
Background: Aspiration pneumonia is a significant and potentially preventable cause of morbidity and mortality in critically ill ICU patients. Prophylactic pharmacological interventions, particularly antiemetics like metoclopramide (a prokinetic agent) and ondansetron (a 5-HT3 receptor antagonist), are commonly employed to reduce gastric aspiration and subsequent pneumonia. Despite their widespread use, comparative efficacy data remains limited. This randomized controlled trial was specifically designed to rigorously compare the effectiveness of these two distinct antiemetic strategies in preventing aspiration pneumonia among high-risk, mechanically ventilated patients, aiming to provide evidence-based guidance for clinical practice.
Methods: This double-blind randomized clinical trial involved 116 individuals admitted to the ICU at Shahid Mohammadi Hospital, Bandar Abbas from March 2024 to March 2025. Subjects were randomly assigned to metoclopramide or ondansetron groups. Enrollment criteria consisted of patients between 17 and 70 years old in the ICU requiring intubation and mechanical ventilation. Monitoring continued for 72 hours, with evaluation utilizing the Clinical Pulmonary Infection Score (CPIS), chest X-ray (CXR) results, and physical assessments. Data were analyzed with SPSS version 21 employing descriptive statistics (mean, standard deviation, percentage, frequency) and inferential tests with significance set at P<0.05.
Results: Chi-square analysis indicated no statistically significant gender difference between groups (P=0.947). Mean age was 30.6±10.5 years for metoclopramide recipients and 32.9±6.12 years for ondansetron recipients. Further analysis revealed no significant differences in age or BMI between cohorts. No significant difference emerged between metoclopramide and ondansetron groups regarding aspiration pneumonia occurrence, with similar incidence rates in both arms. Multiple logistic regression demonstrated that statistically, no variables influenced aspiration pneumonia development.
Conclusion: The results of this randomized trial clearly demonstrate no statistically significant difference in efficacy between metoclopramide and ondansetron for preventing aspiration pneumonia in intubated ICU patients. Both agents showed comparable effectiveness in our study population, suggesting that either drug represents a clinically acceptable prophylactic option. This finding provides clinicians with valuable therapeutic flexibility based on individual patient characteristics, drug availability, and cost considerations. However, further multicenter studies with larger sample sizes are recommended to confirm these findings across diverse patient populations and settings.
Mahasti Emami Hamzehkolaee , Amirhesam Alirezaei, Marjan Moudi, Sepide Veysi , Masoumeh Asgharpour,
Volume 83, Issue 2 (May 2025)
Volume 83, Issue 2 (May 2025)
Abstract
Background: Hydrochlorothiazide (HCTZ) is widely used for hypertension, but electrolyte disorders-especially hyponatremia remain major safety concerns. Limited regional data on its prevalence, timing, and determinants may undermine patient safety. This retrospective study evaluated risk factors for HCTZ-associated hyponatremia in hospitalized adults with hypertension and identified predictors of its severity.
Methods: A retrospective analysis was conducted on 217 patients hospitalized at Ayatollah Rouhani Hospital in Babol (2019-2021). Eligible participants were aged ≥18 years and had received HCTZ for at least seven consecutive days. Patients with baseline hyponatremia, concurrent use of drugs independently causing hyponatremia, or incomplete laboratory data were excluded. Demographic, clinical, medication, and biochemical variables were abstracted from medical records. Hyponatremia was defined as serum sodium <135 mmol/L and categorized as mild (130-134), moderate (125-129), or severe (<125). Predictors of occurrence were estimated with multivariable logistic regression; onset timing was assessed using a Cox proportional hazards model; and severity determinants were examined through multinomial logistic regression. Statistical significance was set at P<0.05.
Results: Hyponatremia occurred in 32.7% (71.217) of patients, most frequently within the early weeks of HCTZ treatment. Among affected individuals, 49.3% had mild, 31.0% moderate, and 19.7% severe hyponatremia. Adjusted analyses showed that older age, concurrent nonsteroidal anti-inflammatory drug (NSAID) use, shorter HCTZ duration, and lower serum potassium and uric acid independently increased hyponatremia risk, while HCTZ dose and sex were nonsignificant. In the Cox model, older age and lower potassium and uric acid predicted earlier onset. Patients with hyponatremia more often presented with weakness, headache, altered consciousness, and seizures. Baseline glucose, creatinine, and most comorbidities were not independently associated with risk or timing.
Conclusion: HCTZ-related hyponatremia was common and typically emerged soon after initiation. Advanced age, NSAID co-administration, brief exposure, and reduced potassium and uric acid were practical, readily measurable markers associated with both occurrence and earlier onset. Routine early and repeated electrolyte monitoring particularly in older adults and patients receiving NSAIDs- together with patient education on warning symptoms is recommended. These findings highlight key predictors for targeted surveillance and prevention in similar clinical contexts.
Methods: A retrospective analysis was conducted on 217 patients hospitalized at Ayatollah Rouhani Hospital in Babol (2019-2021). Eligible participants were aged ≥18 years and had received HCTZ for at least seven consecutive days. Patients with baseline hyponatremia, concurrent use of drugs independently causing hyponatremia, or incomplete laboratory data were excluded. Demographic, clinical, medication, and biochemical variables were abstracted from medical records. Hyponatremia was defined as serum sodium <135 mmol/L and categorized as mild (130-134), moderate (125-129), or severe (<125). Predictors of occurrence were estimated with multivariable logistic regression; onset timing was assessed using a Cox proportional hazards model; and severity determinants were examined through multinomial logistic regression. Statistical significance was set at P<0.05.
Results: Hyponatremia occurred in 32.7% (71.217) of patients, most frequently within the early weeks of HCTZ treatment. Among affected individuals, 49.3% had mild, 31.0% moderate, and 19.7% severe hyponatremia. Adjusted analyses showed that older age, concurrent nonsteroidal anti-inflammatory drug (NSAID) use, shorter HCTZ duration, and lower serum potassium and uric acid independently increased hyponatremia risk, while HCTZ dose and sex were nonsignificant. In the Cox model, older age and lower potassium and uric acid predicted earlier onset. Patients with hyponatremia more often presented with weakness, headache, altered consciousness, and seizures. Baseline glucose, creatinine, and most comorbidities were not independently associated with risk or timing.
Conclusion: HCTZ-related hyponatremia was common and typically emerged soon after initiation. Advanced age, NSAID co-administration, brief exposure, and reduced potassium and uric acid were practical, readily measurable markers associated with both occurrence and earlier onset. Routine early and repeated electrolyte monitoring particularly in older adults and patients receiving NSAIDs- together with patient education on warning symptoms is recommended. These findings highlight key predictors for targeted surveillance and prevention in similar clinical contexts.
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