Showing 916 results for Ct
Javad Hashemi, Hoseinali Soltani , Ali Esmaeili , Fatemeh Roshanravan Yazdi , Seyed Hassan Seyed Sharifi ,
Volume 83, Issue 4 (7-2025)
Abstract
Background: Postoperative pain is a significant concern after cholecystectomy. Given the role of vitamin D in pain management, this study investigated the correlation between preoperative vitamin D levels and postoperative pain severity in patients undergoing laparoscopic cholecystectomy, with the aim of improving pain management and enhancing postoperative care.
Methods: This prospective observational study (January 2024- February 2025) was conducted on 87 patients undergoing laparoscopic cholecystectomy at Imam Ali Hospital of Bojnurd. Inclusion criteria were age 18-45, non-urgent laparoscopic cholecystectomy, and good physical status. Exclusion criteria were chronic pain, regular analgesic use, known psychiatric or neurological disease or treatment, substance abuse, emergency cholecystectomy, or conversion to open surgery. Participants fasted for 12 hours preoperatively. All received 1 g (IV) ceftriaxone one hour before and 12 hours after surgery. Anesthesia was induced with propofol and fentanyl and maintained with isoflurane, nitrous oxide, or oxygen. Anesthesia and surgical technique were standardized, with any deviations recorded. We collected demographic data and extracted perioperative details from records and interviews. Pre-induction venous blood samples were collected, processed, and stored at -20°C. Serum vitamin D concentrations were quantified via ELISA method, and participants were subsequently stratified into two groups based on these measurements. Postoperative pain was assessed on a Visual Analog Scale (0-10) at 6, 12, 18, and 24 hours. Analgesic regimens followed standard protocol under physician supervision and were unaffected by the study.
Results: Lower serum vitamin D levels were associated with higher postoperative pain scores (P<0.01), with this relationship being significant at 6, 12, and 18 hours postoperatively (P<0.01, P<0.01, and P<0.05, respectively). Insufficient vitamin D levels and female gender were also independent risk factors for acute pain after laparoscopic cholecystectomy (P<0.01).
Conclusion: Based on the results of the present study, preoperative vitamin D deficiency is associated with increased postoperative acute pain scores in patients undergoing laparoscopic cholecystectomy, especially in women. These findings may be useful for postoperative pain management in patients with vitamin D deficiency.
Yaser Sharafi, Mohammad Talebpour, Khosro Najari,
Volume 83, Issue 5 (8-2025)
Abstract
Background: Dumping syndrome is a common complication after bariatric surgery and can adversely affect patients’ quality of life, particularly in those with diabetes. Although gastric bypass has traditionally been associated with a higher risk of dumping syndrome, evidence comparing its frequency with sleeve gastrectomy remains inconclusive. This study aimed to compare the frequency of dumping syndrome following these two procedures in patients with morbid obesity.
Methods: This prospective cohort study was conducted from April 2021 to July 2022 at Sina Hospital in Tehran. A total of 90 patients with morbid obesity who met the indications for bariatric surgery were not randomly assigned to two treatment groups: gastric bypass (n = 45) and sleeve gastrectomy (n = 45). Baseline assessments included medical history, physical examination, review of medical records, and necessary specialist consultations (including endocrinology and cardiology). All patients’ data were recorded in the Sina Bariatric Surgery Registry Database. Following surgery, patients received standard postoperative care and were evaluated for symptoms of dumping syndrome at one and three months postoperatively using the validated Sigstad questionnaire. Statistical analyses were performed using SPSS software.
Results: The results showed no statistically significant differences between the two groups in terms of age group, gender, excess weight, preoperative BMI, final BMI, and history of diabetes prior to surgery (P-value > 0.05). The final weight was significantly higher in the sleeve gastrectomy group (P-value = 0.033). There were no significant differences in the frequency of early and late dumping syndrome related to the consumption of sweets and other foods between the two groups at the first and third postoperative months (P-value > 0.05). Early dumping syndrome following the consumption of sweets and bread was significantly more frequent among diabetic patients (P-value = 0.037 and P-value = 0.045, respectively).
Conclusion: The prevalence of dumping syndrome was similar in both sleeve and bypass groups. Weight loss over time was significant (P < 0.001) and did not differ between groups (P = 0.211). The syndrome was significantly more common in diabetic patients, highlighting the importance of careful postoperative care and dietary guidance.
Ehsan Nasirai, Mehdi Bakhshaee, Bashir Rasoulian, Daryoush Hamidi Alamdari, Kiana Ketabi, Imaneh Roshanzamir,
Volume 83, Issue 5 (8-2025)
Abstract
Background: To improve hemostasis and optimize the healing process, autologous fibrin sealant (FS) has been introduced in selected cases. However, the clinical benefits of FS in sinonasal surgery remain controversial and require further evaluation. This study aimed to investigate the effects of autologous FS on hemostasis, mucosal healing, postoperative clinical outcomes, and recurrence in patients undergoing bilateral FESS, compared with normal saline as the control.
Methods: This randomized clinical trial included 32 patients who underwent bilateral FESS at Ghaem and Imam Reza University Hospitals in Mashhad, Iran, between 2019 and 2021. For each patient, autologous FS was applied to one nasal cavity, while the contralateral cavity received normal saline. Postoperative outcomes including bleeding, crusting, adhesion formation, and infection were assessed at 1 week, 1 month, and 3 months after surgery. In addition, sinonasal symptom burden and endoscopic findings were evaluated using the Sinonasal Outcome Test (SNOT-22) and the Lund-Kennedy endoscopic score, respectively, both recorded preoperatively and three months postoperatively.
Results: Application of autologous FS significantly reduced immediate postoperative bleeding, and no further bleeding events were noted during follow-up. Pain severity was comparable between the two sides. No statistically significant differences were observed in crust formation, adhesion, infection, recurrence, or changes in Lund-Kennedy scores between the FS and control sides (p=0.08, p=0.8, p=0.17, and p=0.14, respectively).
Conclusion: Autologous fibrin sealant reduced early postoperative bleeding without adversely affecting pain control, mucosal healing, or recurrence after FESS. Larger randomized trials with extended follow-up are recommended to determine its definitive clinical value and potential for routine use in surgical practice.
Fariba Shokri, Mohammad Mehdi Rejati , Mehdi Shokri,
Volume 83, Issue 5 (8-2025)
Abstract
Background: Asthma attacks are one of the most common reasons for patient referral in adult and paediatric age groups, leading to hospitalization of these patients. In addition to the fact that only a small percentage of asthma attacks are due to bacterial infections, asthma treatment guidelines recommend against the routine use of antibiotics in patients hospitalized for asthma attacks. However, many patients treated for asthma attacks receive antibacterial drugs. Therefore, the aim of the present study is to investigate the prescription of antibacterial drugs in patients with asthma attacks.
Methods: In this study, data related to Imam Khomeini (RA) and Shahid Mustafa Khomeini Teaching Hospitals in Ilam city were examined between April 2017 to March 2022. Cases hospitalized due to asthma attacks in the mentioned hospitals during that time period were included in the study according to the inclusion and exclusion criteria.
Results: A total of 331 patients, including 273 adults (84.4%) and 58 children (17.6%), hospitalized for asthma attacks were included in the study. 84.42% of adults and 70.69% of children received antibacterial drugs. The use of antibacterial drugs in adults (p < 0.001) and children (p = 0.008) was significantly associated with an increase in the average length of hospitalization. Among adults, 12 patients required intubation, which was not significantly associated with the use of antibacterial drugs (p = 0.51). Among children, 1 patient required intubation, which was not statistically significant in terms of association with antibiotic use.
Conclusion: The prescription of antibacterial drugs in the treatment of patients hospitalized due to asthma attacks in teaching hospitals in Ilam city is more than similar domestic and international studies. Also, the prescription of antibacterial drugs in these patients not only has no therapeutic benefit, but is also associated with an increase in the duration of hospitalization. It is necessary to consider the necessary measures to modify the views of specialists on the prescription of antibacterial drugs based on the latest evidence-based guidelines.
Mobina Zamanifard, Hamid Reza Norouzi, Fazilat Jokar Darzi , Malihe Safari,
Volume 83, Issue 5 (8-2025)
Abstract
Background: Helicobacter pylori (H. pylori) is a human gastrointestinal pathogen that infects more than half of the world's population and leads to chronic gastritis and its role in the development of gastric ulcers, gastric cancer and gastric lymphomas is considered. However, eradication of this bacterium with triple therapy fails in more than 30% of cases. Therefore, efforts to find new treatment methods are increasing. As a result, this study was conducted to evaluate the effectiveness and tolerability of several drug regimens compared to the standard regimen.
Methods: This study is a randomized clinical trial in which patients with Helicobacter pylori infection were randomly selected in the endoscopy department of Amiralmomenin Hospital and the Gastroenterology Clinic of Professor Ghavamzadeh Clinic, Arak from October 2024 to March 2025 and were divided into three groups, including a control group and two intervention groups, with three different drug regimens. Four weeks after treatment, the rate of bacterial eradication in all three evaluation groups was assessed using fecal antigen testing and the treatment results were compared using appropriate statistical analyses.
Results: The frequency of negative test results in intervention group 2 was higher than in control and intervention group 1. (P<0.001) and the rate of Helicobacter pylori eradication was in intervention group 2 (94%), in control group (54%), and in intervention group 1 (20%). The chance of H.P eradication in intervention group 1 decreased by 84% compared to the control group and increased by 10.77 times in intervention group 2 compared to the control group. Also, a significant proportion of H.P eradication success was observed in people without diabetes (p-value = 0.022, Phi = -0.188, n = 150) and the rate of drug side effects was higher in intervention group 2 compared to the other two groups.
Conclusion: This study showed that compared to the standard regimen, a 2-week regimen of amoxicillin, omeprazole, and clarithromycin plus bismuth is a good, potent, and more cost-effective regimen for eradicating Helicobacter pylori.
Alireza Eskandarifar, Zahra Taherkhani, Soleiman Mohammadzadeh , Rama Naghshizadian, Khaled Rahmani,
Volume 83, Issue 5 (8-2025)
Abstract
Background: Primary nocturnal enuresis (PNE) is a common and distressing childhood disorder characterized by involuntary urination during sleep after the age when bladder control is normally achieved. It affects not only the child’s quality of life but also family dynamics and social relationships. Previous studies have suggested a possible link between PNE and psychological or behavioral problems, yet findings have been inconsistent across populations. The present study aimed to investigate and compare the prevalence and patterns of psychiatric disorders among children with primary nocturnal enuresis and healthy controls in Sanandaj, Iran.
Methods: This case-control study was conducted in Sanandaj from October 2024 to April 2025. The study population included children referred to the Medical, Educational, and Therapeutic Center of Kurdistan University of Medical Sciences. A total of 228 participants were enrolled, comprising 108 children diagnosed with primary nocturnal enuresis and 120 age- and sex-matched healthy controls selected through convenient sampling. Psychiatric assessments were performed using the parent version of the Child Symptom Inventory-4 (CSI-4) questionnaire, which evaluates a wide range of childhood behavioral and emotional disorders based on DSM-IV criteria. Statistical analysis was performed using Stata version 18, and comparisons between groups were made using the chi-square and Fisher’s exact tests. A p-value < 0.05 was considered statistically significant.
Results: Children with primary nocturnal enuresis had significantly higher frequencies of attention deficit disorder (ADD), hyperactivity disorder (HD), attention deficit-hyperactivity disorder (ADHD), oppositional defiant disorder (ODD), generalized anxiety disorder (GAD), and tic disorder compared with the control group (p < 0.05). In contrast, the prevalence of phobia and obsessive-compulsive disorder (OCD) was slightly higher in the control group. No statistically significant difference was found regarding post-traumatic stress disorder (PTSD) between the two groups.
Conclusion: The findings suggest that primary nocturnal enuresis may serve as an indicator of increased vulnerability to certain psychiatric disorders in childhood. Early recognition and psychological evaluation of children with enuresis are recommended to improve long-term outcomes and mental well-being.
Hedayat Heydarizadeh, Hossein Seyedkhani, Zahra Mohebinajad, Ali Heydarizadeh,
Volume 83, Issue 5 (8-2025)
Abstract
Background: Chronic abdominal pain, which is defined as long-term or intermittent abdominal pain, is a common problem in children. Helicobacter pylori infection is acquired in childhood and is one of the important causes of peptic ulcer disease (PUD) and stomach cancer, so this study was conducted with the aim of investigating the prevalence of Helicobacter pylori in children with chronic abdominal pain referred to Imam Hospital in 1402.
Methods: This study is descriptive-cross-sectional and the statistical population of children with chronic abdominal pain referred to Imam Khomeini Hospital in Ilam city in 1402 was tested for Helicobacter bacteria. Helicobacter pylori was checked using stool antigen test.
Results: This study was conducted on 140 children with chronic abdominal pain with an average age of 7.06 years in the age range of 2-16 years, the majority of children living in Ilam city were boys. The type of feeding was reported in all children as regular, and the majority of them were the result of cesarean delivery (67.9%). The prevalence of 40.7% showed HP positivity in children with chronic abdominal pain. The majority of children in the age group of 4-8 years had Helicobacter pylori positive, 20 people (35.7%) and in children older than 12 years, Helicobacter pylori had the lowest frequency. The prevalence of Helicobacter pylori was reported more in girls than in boys, and among the studied cities it was the highest. The outbreak was in the city of Ilam. There was no difference between the prevalence of Helicobacter pylori with age, sex, place of residence and type of delivery.
Conclusion: The general results of our study show that Helicobacter pylori is an important factor for chronic abdominal pain in children, but factors such as sex, place of residence and type of delivery do not affect its prevalence. It is suggested that in future studies, the family history, parents' infection with Helicobacter pylori and its relationship with transmission to the child should be measured.
Majid Vatankhah Tarbebar , Saeid Kashani, Milad Mohammadi , Zohreh Nik Eghbali, Mehrdad Malekshoar,
Volume 83, Issue 6 (9-2025)
Abstract
Background: Laparoscopic cholecystectomy is the gold standard for treating gallbladder diseases; however, it is associated with physiological challenges from pneumoperitoneum and specific patient positioning. Positive end-expiratory pressure (PEEP) may mitigate these effects, but the optimal level remains uncertain. This study compared the impact of three PEEP levels on respiratory performance and hemodynamic stability during laparoscopic cholecystectomy.
Methods: This randomized double-blind clinical trial was conducted at Shahid Mohammadi Hospital, Bandar Abbas, Iran, from August 2023 to February 2024. A total of 75 adult patients aged 18-70 years with ASA class I-II scheduled for elective laparoscopic cholecystectomy were assigned to three groups (n=25 each): PEEP 0 cmH₂O (control), PEEP 5 cmH₂O, and PEEP 7 cmH₂O. Standardized general anesthesia and mechanical ventilation with tidal volumes of 6-8 mL/kg were applied. Hemodynamic variables (mean arterial pressure, heart rate) and respiratory parameters (SpO₂, EtCO₂) were recorded before intubation, during intubation, and at 15, 30, and 60 minutes post-intubation, as well as in the recovery room. Arterial blood gas analysis was performed 30 minutes after intubation. Data were analyzed using ANOVA and chi-square tests with a significance level of 0.05.
Results: The mean age of patients was 41.89±11.39 years, and baseline demographic variables showed no significant differences among groups. Oxygen saturation remained above 94% across all time points without intergroup differences. EtCO₂ values differed significantly at 30 minutes (P=0.04) and 60 minutes (P=0.01), with the highest levels observed in the PEEP 7 group and the lowest in the PEEP 5 group. Although mean arterial pressure and heart rate did not show statistically significant variation among groups, the PEEP 7 group demonstrated the smallest postoperative decline in blood pressure.
Conclusion: A PEEP level of 5 cmH₂O offers the most favorable balance between maintaining oxygenation, supporting effective ventilation, and preserving hemodynamic stability during laparoscopic cholecystectomy. This level can be recommended as a safe and optimal ventilation strategy.
Moslem Taheri Soodejani , Roghayeh Torkpour ,
Volume 83, Issue 6 (9-2025)
Abstract
Background: Autism spectrum disorder (ASD) represents one of the most significant neurodevelopmental disorders in early childhood, where early diagnosis, particularly in children under five years of age, is crucial for effective interventions. Although global autism incidence has risen due to improved awareness, enhanced screening programs, and broader diagnostic criteria, epidemiological data from middle-income countries like Iran remain limited, especially for children under five. This study aimed to examine autism incidence trends among Iranian children under five from 1990 to 2021, stratified by sex and province.
Methods: This ecological study was conducted from October 2024 to March 2025, analyzing data extracted from the Global burden of disease (GBD) database (1990-2021). Age-specific incidence data for children under five were obtained by sex and province. Incidence rates per 100,000 population were calculated for gender and provincial comparisons. Joinpoint regression analysis assessed annual trends and identified significant inflection points. Heat maps illustrated geographical distributions, while trend graphs stratified by sex and province were generated using GraphPad Prism.
Results: The incidence rate of autism in children under five gradually increased from 1990 to 2005, followed by a sharp rise between 2005 and 2009, reaching its peak during this period. A subsequent decline was observed from 2009 to 2021. The male-to-female ratio remained consistently stable at approximately 3:1 throughout the study period and across all provinces. Notable provincial disparities were observed, with border provinces exhibiting greater fluctuations compared to central regions.
Conclusion: In contrast to the continuous global increase, autism incidence among Iranian children under five demonstrated an initial rise followed by a sustained decline after 2009. This trend may be attributed to declining birth rates, demographic shifts, evolving diagnostic criteria, improved prenatal care, and persistent challenges in early screening and case registration, alongside regional disparities in access to diagnostic services. These findings emphasize the need for enhanced early-screening programs, equitable resource distribution, and evidence-based child mental health policies in Iran.
Heshmat Shahi , Fatemeh Kiaee ,
Volume 83, Issue 6 (9-2025)
Abstract
Helicobacter pylori is one of the most common chronic bacterial infections worldwide, with acquisition often occurring in childhood. While its role in the pathology of gastroduodenal diseases in adults is well-established, its impact on the pediatric population presents a unique set of clinical and pathophysiological challenges. This comprehensive review examines the complex and bidirectional relationship between Helicobacter pylori infection and host iron metabolism in pediatric and infant populations. For this review, the PubMed database was utilized for studies published from April 1979 through December 2024. Studies based on English language were included using the MESH terms "Helicobacter pylori," "iron," and "ferritin." According to the inclusion criteria, studies related to H. pylori infection and iron condition in patients under 18 years old were selected. Articles such as review articles, case reports, letters to the editor, and animal or in vitro studies were excluded. The main aim of this study was to illuminate the critical role of iron as an essential micronutrient and factor for both the host and the pathogen, examining the multifaceted mechanisms involved in H. pylori-induced iron homeostasis disruption in children.
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The findings indicate a multifaceted relationship: virulent Helicobacter pylori strains are significantly and inversely associated with true body iron stores, leading to Iron deficiency anemia (IDA). However, chronic inflammatory states can paradoxically elevate ferritin levels, masking underlying iron deficiency. Complex interaction between bacterial infection, host inflammatory responses, and iron deficiency is an important factor influencing both the severity of the damage caused by this bacterial infection and its chronicity in the pediatric population. Identification and comprehensive understanding of these complex mechanisms is of great importance for the effective management of iron deficiency anemia in children with H. pylori infection. Considering, increase in the incidence of H. pylori infection in childhood, it is essential that H. pylori infection be evaluation in children with unknown reasons IDA. Finally, screening methods for H. pylori infection in children is recommended, as this could improve long-term health outcomes.
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Mohammad Sadegh Sanie Jahromi , Reza Ashrafzadeh, Ahmad Rastgarian, Navid Kalani , Mohammad Hasan Damshenas,
Volume 83, Issue 6 (9-2025)
Abstract
Background: In general anesthesia, anesthetic agents are administered by inhalation or intravenously, leading to loss of consciousness, immobility, analgesia, and amnesia. In spinal anesthesia, injection of a local anesthetic into the intrathecal space causes sensory and motor block. The aim of this study was to compare the volume of bleeding during cesarean section under general anesthesia and spinal anesthesia.
Methods: This study is a cross-sectional prospective study. The gauzes used were weighed before the operation and bloody gauzes were weighed after the operation. The difference between the weight of bloody and dry gauzes was recorded as the volume of bleeding. This volume was then added to the volume of blood in the suction chamber and the final bleeding volume was estimated.
Results: 70 patients who were candidates for cesarean section were included in the study. The mean age of the patients included in the study was 24.82±4.98 and their mean weight was 77.11±8.97. The mean hemoglobin in the spinal anesthesia group was 91.12±39. Volume of bleeding during cesarean section by spinal anesthesia was significantly less than general anesthesia (P=0.001). Also, the visual estimation of bleeding in spinal anesthesia was significantly lower than general anesthesia (P<0.001). In this study, there was no significant difference between heart rate, systolic and diastolic pressure before and during surgery, and the first- and fifth-minute Apgar scores between the two groups of general and spinal anesthesia.
Conclusion: We found in this study that the volume of bleeding during cesarean section under spinal anesthesia is less than general anesthesia. It is suggested that in future studies, other methods of estimating bleeding such as postoperative hemoglobin reduction, dilution method, atomic absorption spectroscopy and photometry be used. Also, a comparison should be made between the three groups of general, spinal and epidural anesthesia, and the volume of bleeding in each should be checked and the best anesthesia method should be selected for cesarean section.
Kosar Hajati, Behnaz Deihim ,
Volume 83, Issue 6 (9-2025)
Abstract
Background: Leishmaniasis is one of the most significant parasitic diseases and is susceptible to secondary bacterial infections, which can result in increased inflammation, delayed tissue repair, and increased drug resistance. Given the importance of this phenomenon, the present study was designed to identify bacterial agents and determine their antibiotic resistance patterns in lesions of patients with cutaneous leishmaniasis.
Methods: The present cross-sectional study was conducted in Dezful, Iran, from May 2022 to December 2022 among 173 patients with suspected cutaneous leishmaniasis. In addition to sampling skin lesions for the diagnosis of leishmaniasis, wound exudates were collected using sterile swabs and cultured on blood agar and MacConkey agar plates. Bacteria were identified by Gram staining and biochemical tests. Antibiotic susceptibility patterns were determined by disk diffusion, according to the CLSI 2024 guidelines. SPSS version 20 software was used for data analysis. In Staphylococcus aureus isolates, methicillin resistance was determined using a cefoxitin disk (30 μg), and vancomycin resistance was determined by broth microdilution. In vancomycin-resistant Enterococcus isolates, a vancomycin disk (30 μg) was used. In Enterobacteriaceae, the extended-spectrum beta-lactamase (ESBL) phenotype was performed using ceftazidime (30 μg) and the ceftazidime/clavulanic acid combination disk (30/10 μg).
Results: Cutaneous leishmaniasis was detected in 65.3% of cases, of which 46 cases (26.6%) had secondary bacterial infection. Staphylococcus aureus (67.4%) and Klebsiella pneumoniae (13%) were the most common isolates. Methicillin-resistant Staphylococcus aureus (MRSA) was detected in 13 cases, accounting for 41.9% of the isolates. The frequency of Multidrug-resistant (MDR) Staphylococcus aureus among leishmaniasis patients was 38.7%, but all isolates were susceptible to vancomycin and teicoplanin. Two ESBL-producing Escherichia coli were isolated from leishmaniasis foot ulcers. Leg and back wounds were more frequently involved in bacterial infection (P<0.05).
Conclusion: Inappropriate environmental conditions and lack of treatment facilities play an important role in the occurrence and exacerbation of infectious leishmaniasis lesions. An integrated treatment approach and medical staff training can improve disease control and wound healing.
Ardeshir Ebrahiminejad Shahroudi, Abbas Akhavan Sepahi , Anna Meyfour, Abbas Yadegar, Sedigheh Mehrabian,
Volume 83, Issue 7 (10-2025)
Abstract
Inflammatory bowel disease (IBD) is a chronic, relapsing gastrointestinal disorder characterized by persistent inflammation of the intestinal mucosa, disruption of epithelial barrier function, and dysregulation of the immune system. Its pathogenesis involves complex interactions among genetic predisposition, environmental factors, gut microbiota, and host immune responses. Dysregulated cytokine signaling plays a central role, with elevated levels of pro-inflammatory cytokines, including tumor necrosis factor-alpha (TNF-α), interleukin-1 beta (IL-1β), IL-6, IL-12, and interferon-gamma (IFN-γ), contributing to tissue damage, epithelial barrier dysfunction, and clinical manifestations such as diarrhea, bleeding, and weight loss. Conversely, anti-inflammatory cytokines, including interleukin-10 (IL-10), IL-35, and IL-37, counteract these inflammatory responses, inhibit excessive immune activation, and maintain mucosal homeostasis. Probiotics, particularly Lactobacillus strains, have emerged as promising adjunctive therapies for IBD due to their capacity to restore microbial balance, modulate immune responses, and enhance gut barrier integrity. Among them, Lactobacillus brevis has demonstrated significant immunoregulatory and anti-inflammatory effects. Various strains, including AL0035, SBC8803, Bmb6, HY7401, and KU15152, reduce pro-inflammatory cytokines, upregulate tight junction proteins such as ZO-1, regulate Th1/Th2/Th17 responses, and inhibit NF-κB and MAPK signaling pathways. L. brevis-derived metabolites, notably long-chain polyphosphates, attenuate fibrosis, reduce TGF-β1 and collagen expression, and protect epithelial cells from oxidative stress. Heat-killed L. brevis strains also retain immunomodulatory activity, allowing therapeutic use even when live bacteria cannot effectively colonize the gut. Preclinical studies demonstrate that oral administration of L. brevis improves disease activity indices in experimental colitis models, reduces mucosal immune cell infiltration, restores epithelial integrity, and prevents ulceration, bleeding, and goblet cell depletion. Clinical evidence, although limited, suggests that L. brevis supplementation can enhance gut microbiota diversity, increase beneficial bacterial populations, and modulate serum cytokines, further supporting intestinal homeostasis. Furthermore, L. brevis influences metabolite profiles, such as serotonin and polyamines, which are linked to gut motility, epithelial repair, and immune regulation, highlighting its multifaceted role in gut health. In this review article, for the first time, we discussed the beneficial effects of L. brevis in inflammatory bowel disease, highlighting its clinical effects and therapeutic prospects.
Aref Teymurinejad, Hossein Seidkhani , Zahra Mohebinejad, Amirreza Eidypou , Hamed Azadi ,
Volume 83, Issue 7 (10-2025)
Abstract
Background: Kidney stones are the third most common urinary tract disorder after prostate disease and infection. Painful attacks are the most common clinical manifestation, which is known as renal colic. The aim of the present study is to determine the effect of pethidine, pethidine and ketorolac, and ketorolac in patients with primary renal colic.
Methods: Renal colic patients at Imam Khomeini Hospital in Ilam from April 2023 and March 2023. were divided into three groups of 36 people. The first group received pethidine 25 mg, the second group received ketorolac 30 mg, and the third group received a combination of 2 drugs. A questionnaire included demographic information of the patients, heart rate, systolic and diastolic blood pressure, respiratory rate, oxygen saturation, side effects, pain intensity, length of hospitalization, and type of treatment received.
Results: After receiving the drug, the average heart rate increased in all three groups. But in group A, this increase was less than two groups, B and C, and this difference was not statistically significant (P=0.34). The average systolic blood pressure before receiving the drug was significantly higher in the three studied groups (P=0.006), which decreased after receiving the drug, but this decrease in systolic blood pressure in the three groups was not statistically significant (P=0.98). The average pain intensity before receiving the drug was 8.56 ± 1.2 in group A, 9.17 ± 0.878 in group B, and 8.86 ± 0.961 in group C. There was no significant difference between the three groups in terms of initial pain intensity (P=0.45). While the average pain intensity after receiving the medicine was significantly reduced and there was a significant difference (P<0.000).
Conclusion: Overall, the obtained results showed that ketorolac and pethidine have a faster effect and power compared to pethidine and ketorolac alone in controlling the pain of patients with renal colic, and the need for life-saving treatment is also less in this drug, and according to numerous studies, its side effects are also less.
Hossein Majedi , Ebrahim Espahbodi, Seyedeh Fatemeh Hosseini Nejad, Mahshid Vaziri, Fatemeh Javaherforoushzadeh , Mahbubeh Rashidi, Rouzbeh Amiri Motlagh ,
Volume 83, Issue 7 (10-2025)
Abstract
Background: Postoperative pain remains a major concern following abdominal surgeries, including laparoscopic cholecystectomy. Inadequate pain control may lead to increased opioid consumption, delayed recovery, prolonged hospitalization, and reduced patient satisfaction. Therefore, the use of anesthetic adjuvants with effective analgesic properties and minimal side effects has gained increasing attention. Ketamine, an N-methyl-D-aspartate (NMDA) receptor antagonist, and dexmedetomidine, a highly selective α2-adrenergic agonist, are commonly used agents with distinct mechanisms of action. The present study aimed to compare the effects of intraoperative ketamine and dexmedetomidine on postoperative pain following laparoscopic cholecystectomy.
Methods: This randomized, double-blind, controlled clinical trial was conducted on 252 patients undergoing elective laparoscopic cholecystectomy. Patients were randomly assigned into three equal groups: ketamine, dexmedetomidine, and control. The ketamine group received an intravenous infusion of ketamine at a dose of 0.5 mg/kg/h, the dexmedetomidine group received 0.6 µg/kg/min of dexmedetomidine, and the control group received normal saline. Pain intensity was assessed using the Visual Analogue Scale (VAS) at 1, 6, 12, and 24 hours postoperatively. Hemodynamic parameters, including heart rate and mean arterial pressure, were continuously monitored throughout the perioperative period. Data were analyzed using appropriate statistical tests, including ANOVA and nonparametric analyses.
Results: The results demonstrated that postoperative pain scores were significantly lower in the ketamine group compared to both the dexmedetomidine and control groups at all evaluated time points within the first 24 hours after surgery (P < 0.001). Although dexmedetomidine also provided effective analgesia compared with the control group, ketamine showed superior pain reduction. No statistically significant differences were observed among the three groups regarding hemodynamic parameters, indicating comparable cardiovascular stability.
.Conclusion: Intraoperative administration of ketamine was more effective than dexmedetomidine in reducing postoperative pain following laparoscopic cholecystectomy, without compromising hemodynamic stability. Nevertheless, both agents proved to be safe and effective options for postoperative pain management. Ketamine may be considered a preferable.
Moghgan Samet Zadeh , Sahar Nikouzad Shahraki , Mohammad Ghasem Hanafi ,
Volume 83, Issue 7 (10-2025)
Abstract
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Background: Nonalcoholic fatty liver disease (NAFLD) is one of the most prevalent chronic liver diseases worldwide and is closely associated with metabolic syndrome and insulin resistance. Growing evidence suggests a link between NAFLD and cardiovascular diseases, independent of traditional risk factors. Coronary computed tomography angiography (CCTA) is a reliable noninvasive method for evaluating coronary artery disease (CAD) and identifying high-risk coronary plaque characteristics. However, data regarding the association between NAFLD and high-risk coronary plaques remain limited, particularly in Iran. This study aimed to evaluate the prevalence of NAFLD in patients with high-risk coronary plaques detected by CCTA.
Methods: In this cross-sectional study, 200 patients who underwent CCTA for the evaluation of coronary plaques in outpatient clinics or the emergency department of Golestan Hospital in ahvaz ,1403 ,were enrolled. Demographic data, including age, sex, weight, and body mass index (BMI), along with clinical characteristics and cardiovascular risk factors such as hypertension, diabetes mellitus, dyslipidemia, smoking status, and medical history were collected. Patients with a history of alcohol consumption or known liver disease were excluded. NAFLD was assessed based on imaging findings. Statistical analyses were performed to compare variables between patients with and without NAFLD.
Results: The mean age of patients with NAFLD was 57.89 ± 9.72 years, compared with 55.77 ± 8.97 years in patients without NAFLD, with no statistically significant difference. The prevalence of NAFLD was slightly higher in women than men; however, this difference was not significant. Patients with NAFLD had a significantly higher mean weight than those without NAFLD (85.21 ± 12.12 kg vs. 79.62 ± 11.85 kg; p = 0.001). Additionally, the prevalence of NAFLD increased significantly with higher BMI categories, particularly in obese individuals.
Conclusion: Age and gender were not significantly associated with NAFLD prevalence in patients with high-risk coronary plaques. In contrast, increased body weight and higher BMI, especially obesity, were independently associated with a higher risk of NAFLD in this population.
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Hadi Khorsand Zak, Seyed Hasan Seyed Sharifi , Yaser Abbasi , Rasul Nikdel,
Volume 83, Issue 7 (10-2025)
Abstract
Background: Intestinal lymphangiomatosis is a rare benign disorder of the gastrointestinal tract characterized by abnormal proliferation and dilatation of lymphatic channels within the intestinal wall and mesentery. It accounts for less than 1% of gastrointestinal tumors and predominantly affects the small intestine, particularly in pediatric patients. Clinical manifestations vary widely depending on the size, location, and extent of the lesions, ranging from asymptomatic presentations to acute complications. Due to its rarity and nonspecific features, early diagnosis is often difficult. Imaging modalities, especially ultrasonography, computed tomography, and magnetic resonance imaging, are crucial for initial evaluation and preoperative planning.
Case Presentation: We report an infant who presented with failure to thrive, progressive abdominal distension, and acute symptoms of gastrointestinal obstruction. The patient was admitted to Imam Reza Hospital, Bojnurd, in February 2024. A detailed clinical assessment and laboratory evaluation were performed, followed by abdominal ultrasonography, which revealed a multiloculated cystic mass originating from the small bowel, highly suggestive of a lymphatic malformation. Due to complete small bowel obstruction and worsening clinical status, urgent exploratory laparotomy was undertaken. Intraoperative findings demonstrated a cystic lesion involving a segment of the small intestine, causing total luminal obstruction. Segmental resection of the affected bowel with primary anastomosis was performed, and the resected specimen was submitted for histopathological analysis. The postoperative course was uneventful, with gradual resolution of abdominal distension and successful reintroduction of enteral feeding. Histopathological examination confirmed intestinal lymphangioma, showing dilated lymphatic channels lined by endothelial cells within the intestinal wall, with no evidence of malignancy. During follow-up, the patient demonstrated satisfactory weight gain and normalization of gastrointestinal function, without recurrence or postoperative complications.
Conclusion: Although rare, intestinal lymphangiomatosis should be considered in infants presenting with failure to thrive and signs of bowel obstruction. Timely imaging, particularly ultrasonography, is essential for early diagnosis. Surgical resection remains the definitive treatment in symptomatic cases and is associated with favorable outcomes. Increased clinical awareness can help prevent delayed diagnosis and minimize associated morbidity.
Navid Kalani, Mehrdad Sayadinia, Amir Hossein Pourdavood , Maryam Ziaei, Tayyebeh Zare , Bibi Mona Razavi , Mansour Deylami ,
Volume 83, Issue 8 (11-2025)
Abstract
Background: With the rapid advancement of minimally invasive surgical techniques, laparoscopic cholecystectomy has become one of the most frequently performed procedures worldwide. Despite its benefits, such as reduced postoperative complications and faster recovery, effective pain management remains a critical challenge. Postoperative pain can significantly impact patient recovery, hospital stay duration, and overall satisfaction. Given the limitations and side effects of opioid-based analgesics, there is growing interest in non-opioid alternatives for pain control following laparoscopic cholecystectomy. This narrative review evaluates the efficacy of various non-opioid analgesics in managing postoperative pain in patients undergoing this procedure.
Methods: A comprehensive literature search was conducted across multiple electronic databases, including Scopus, PubMed, Science Direct, SID, Magiran, and Google Scholar, using both Persian and English keywords. English equivalents were "Pain" and "Laparoscopic Cholecystectomy." Studies discussing pharmacological interventions for postoperative pain management in laparoscopic cholecystectomy were included.
Results: The review identified a wide range of non-opioid analgesics used for pain control in laparoscopic cholecystectomy patients. These included: Systemic medications (intravenous/oral) were magnesium sulfate, ketamine, ketorolac, paracetamol, ibuprofen, pregabalin, gabapentin, acetazolamide, N-acetylcysteine, dexamethasone, clonidine, celecoxib, and diclofenac. Local anesthetics & adjuvants were used intraperitoneally like bupivacaine, lidocaine, and hydrocortisone. Administration routes varied, with most drugs given intravenously, intraperitoneally, or preemptively (e.g., celecoxib and clonidine before surgery). Some studies highlighted the benefits of multimodal analgesia, combining different drug classes to enhance pain relief while minimizing side effects.
Conclusion: Despite the availability of numerous non-opioid analgesics, no single drug has been universally endorsed as the gold standard for postoperative pain management in laparoscopic cholecystectomy. Current evidence suggests that the choice of analgesic should be individualized, considering patient factors (e.g., comorbidities, pain tolerance) and the anesthesiologist’s expertise. Multimodal approaches, combining different drug classes, may offer superior pain control with fewer adverse effects compared to monotherapy. Further high-quality randomized trials are needed to establish standardized protocols and optimize pain management strategies for these patients.
Kimia Shirbandi, Ramin Azhough, Hosein Shiri ,
Volume 83, Issue 8 (11-2025)
Abstract
Background: Since multiple factors contribute to the occurrence of postoperative complications and these risk factors are generally more prevalent among elderly individuals compared to younger patients this study was conducted to compare the complications of hemorrhoidectomy between elderly and non-elderly patients.
Methods: For each patient, a data collection form was completed, including demographic characteristics (age, sex, body mass index, ASA class, and comorbidities), as well as laboratory and disease-related information. Postoperative complications assessed were bleeding, anal fissure, rectal stenosis, anal pain, hemorrhoid recurrence, reoperation, postoperative infection, pruritus, and urinary tract infection.
Results: The findings indicated that the lymphocyte-to-monocyte ratio LMR Lymphocite to Monocye Ratio) was associated with a reduced incidence of complications, whereas both the neutrophil-to-lymphocyte ratio (NLR) and C-reactive protein CRP (c_reactive protein) levels were associated with an increased incidence of complications. Furthermore, hemorrhoid grade, disease duration, number of hemorrhoidal nodules, preoperative pain severity, and chronic preoperative pain were all significantly associated with a higher likelihood of postoperative complications in elderly patients.
Conclusion: This study demonstrates that several factors including hematologic ratios (LMR, NLR), CRP (c_reactive protein) levels, hemorrhoid grade, disease duration, number of hemorrhoidal nodules, preoperative pain severity, and chronic preoperative pain are significantly associated with the occurrence of postoperative complications following hemorrhoidectomy in elderly patients.
Mohsen Nabiouni, Ahmad Ghorbanpour Barforoshi , Ali Tavakoli Pirzaman ,
Volume 83, Issue 8 (11-2025)
Abstract
Background: Severe spinal kyphosis, particularly in patients with sagittal imbalance and high Pelvic incidence (PI), represents one of the most challenging conditions in spinal surgery. This deformity is commonly associated with chronic pain, functional limitation, and a decreased quality of life.
Case Presentation: A 66 year old woman presented with progressively worsening radicular pain, gait impairment, early fatigue while standing, and a severe kyphotic deformity with marked sagittal imbalance. Her history was significant for an instrumented lumbar fusion from L3 to S1 performed in March 2023, complicated by persistent right foot drop, followed approximately five weeks later by rehospitalization for herpetic encephalitis; concurrent imaging demonstrated inflammatory changes at the L5-S1 disc space suspicious for discitis, although CT guided biopsy cultures were negative. Her medical comorbidities included type 2 diabetes mellitus and prior coronary artery bypass grafting. Radiographic and spinopelvic analysis revealed adjacent segment disease at L2-L3 and severe sagittal malalignment with a pelvic incidence of 88°, lumbar lordosis of 30°, and sagittal vertical axis of 25 cm. Given the significant PI-LL mismatch and progressive postural collapse, revision deformity surgery was indicated. The patient underwent a Smith-Petersen osteotomy at L5-S1 with long segment posterior fixation from T11 to S2, including iliac screw fixation, between August and September 2025. Postoperatively, lumbar lordosis improved to 45°, pelvic incidence decreased to 65°, and global sagittal alignment was restored, resulting in marked pain relief, improved standing tolerance, correction of spinal balance, and stable neurological status during recovery.
Conclusion: Postoperatively, significant improvement in sagittal balance was achieved, with LL increasing to 45° and PI decreasing to 65°, leading to marked functional recovery and pain relief. This case powerfully demonstrates the correlation between a high Pelvic incidence (PI) and prior surgical failure. It serves as an important didactic example in understanding the biomechanical drivers of sagittal deformity, emphasizing the optimization of safer, corrective surgical techniques for high-risk, complex patients to ensure durable global alignment.