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Showing 7 results for Vahedian
Assessment of the frequency and causes of heart consulting in patients admitted to the neonatal intensive care unit
Amir Hosein Movahedian , Mohammad Jahangiri , Mona Nabovati, Mohammad Reza Sharif , Raheleh Moradi , Ziba Mosayebi ,
Volume 77, Issue 9 (December 2019)
Abstract
Background: Congenital heart diseases are the second group of congenital anomalies in infants. These disorders are a major cause of death in the first year of a child's life. Early detection helps to treat these diseases better. In this study cardiology consultations of hospitalized infants in the neonatal intensive care unit were evaluated.
Methods: In this cross-sectional study, two hundred and fifty pediatric cardiology consultations conducted in Shahid Beheshti Hospital in the year 2012 were reviewed. Information such as the cause of consulting, delivery type, age of parents, relative couples, family history of congenital heart disease, maternal medications, maternal background diseases, the final diagnosis, and prognosis follow-up of the patients were recorded in a designed questionnaire. Finally, the data were entered into the SPSS software, version 16 (IBM SPSS, Armonk, NY, USA) and analyzed using descriptive statistics and chi-square test. P-value of less than 0.05 was considered significant.
Results: The mean age of the consulted neonates was 4.845±5.14 days with a gestational age of 33.933±3.65 weeks. Male sex and cesarean section were the most frequent. Fifty-six percent of consulted infants were male. The present study revealed that prematurity (76%), murmurs (30.8%), respiratory distress syndrome (14.4%) and cyanosis (13.2%) were the most common causes of the cardiac consultation seeking among infants. Seventy-six percent of infants were consulted due to prematurity. Eighty-four percent of infants had a normal conditions. Septal defects (ventricular or atrial septal defect) and patent ductus arteriosus were the most common disease diagnosed with the prevalence of 27.5 and 17.5%, respectively. There was a significant relationship between preterm labor and congenital heart disease (P<0.001). Additionally, prematurity associated with respiratory distress syndrome and using assisted reproductive techniques.
Conclusion: The higher prevalence of congenital heart disease in the present study, compared with other studies, reflects the fact that cardiology consultation based on clinical suspicion leads to the more identification of congenital heart disease that means the right referral of newborns for consultation was accompanied with a higher incidence of heart failure.

Examination of preoperative ultrasound findings in predicting the operative time of laparoscopic cholecystectomy
Ahmad Kachoie, Mostafa Vahedian, Farrokh Savaddar, Mohsen Eshraghi, Enayatollah Noori, Sajad Rezvan, Zahra Moeini,
Volume 78, Issue 6 (September 2020)
Abstract
Background: Identifying risk factors for conversion to open surgery laparoscopic cholecystectomy and factors are difficult to predict cholecystectomy surgery is required. The aim of this study was to evaluate the findings of preoperative ultrasound in predicting the length of laparoscopic cholecystectomy surgery.
Methods: The present study was performed cross-sectional on 122 patients who underwent laparoscopic cholecystectomy in Shahid Beheshti, Forghani and Nekoei’s Hospital in Qom from September 2016 to September 2017.
Inclusion criteria: All cases of acute cholecystitis, chronic cholecystitis, symptomatic gallstones and biliary pancreatitis underwent laparoscopic cholecystectomy. The exclusion criteria included patients undergoing laparoscopic cholecystectomy at the same time were other procedures. Before surgery patients' information such as age, sex, ultrasound findings including gallbladder wall thickness, compressed stone and the presence of fluid around the gallbladder were recorded in the checklist. Finally, the duration of cholecystectomy was divided into two degrees of easy operation (less than 60 minutes and without complications) and difficult operation (above 60 minutes with complications) according to the mentioned variables. Data were analyzed by SPSS software, version 22 (IBM SPSS, Armonk, NY, USA). In this study, a significance level of less than 0.05 was considered.
Results: 28 (22.4 percent) males and 97 (77.6 percent) females with a mean age of 44.66 13 13.85 years were studied. There were 35 difficult cases (28 percent) and 90 easy cases (72 percent). Conversion to open surgery occurred in three cases. Among the sonographic findings, there was a significant relationship between the increase in gallbladder wall thickness and Impacted stone with the duration of operation (P≤0.05). But no significant relationship was found between the findings of Presence of pericholecystic fluid and the duration of operation (P>0.05).
Conclusion: Overall, the findings of this study showed that preoperative ultrasound is able to provide valuable data in predicting the duration of laparoscopic cholecystectomy.

An investigational study about the conversion risk factors of laparoscopic cholecystectomy to open surgery
Enayatollah Noori, Mostafa Vahedian, Farrokh Savaddar, Ahmad Kachoie, Mohsen Eshraghi, Neda Minaei,
Volume 78, Issue 11 (February 2021)
Abstract
Background: Knowing the conversion risk factors of laparoscopic cholecystectomy to open surgery, helps the surgeon to plan for surgery accordingly. This study aimed to determine the risk factors for converting laparoscopic cholecystectomy to open surgery.
Methods: In this analytical study, the case information of 1104 patients who underwent laparoscopic cholecystectomy in Shahid Beheshti Hospital in Qom from April 2013 to April 2017 was evaluated. Inclusion criteria were all cases of acute cholecystitis, chronic cholecystitis, symptomatic gallstones, and biliary pancreatitis who underwent laparoscopic cholecystectomy. The exclusion criteria were patients who underwent laparoscopic cholecystectomy at the same time with other procedures. Data of all patients including age, sex, history of abdominal surgery, emergency or elective surgery, blood transaminase level, blood bilirubin level, white blood cell count, amylase level, and serum alkaline phosphatase were recorded. Finally, potential risk factors were compared between the two groups. Average, standard deviation, frequency and percentage indices were used to describe the data. Independent samples t‐test and Mann-Whitney U test were used for quantitative data analysis and Chi-square test was used for qualitative data analysis. P<0.05 is considered significant.
Results: 1104 patients were studied. 765 patients were female (69.3%) and 339 patients were male (30.7%). In 104 cases, open surgery was performed. The mean age of patients in the method change group was 49.45±8.9 years. Among the studied variables, between sex (P=0.26), age (P=0.056), process of cholecystitis (P=0.65), previous history of abdominal surgery (P=0.62), alanine transaminase (P=0.10) aspartate transaminase (P=0.95) showed no statistically significant relationship with the conversion of laparoscopic surgery to open surgery. However, abnormal ultrasound (P=0.000), emergency surgery (P=0.000), white blood cell count (P=0.008), total bilirubin and alkaline phosphatase (P=0.000) had a statistically significant relationship with the conversion of laparoscopic to open surgery
Conclusion: Due to the high complications and mortality of open cholecystectomy, the detection of these risk factors helps to reduce the rate of open surgery and address these factors before surgery.

A comparison between two groups of diabetic and non-diabetic patients regarding complications during laparoscopic cholecystectomy
Alireza Sarmadi, Ahmad Kachoei, Mostafa Vahedian, Enayatollah Noori , Mojdeh Bahadorzadeh, Amrollah Salimi , Mohammad Hossein Assi,
Volume 79, Issue 9 (December 2021)
Abstract
Background: Cholecystectomy is one of the most common abdominal surgeries and its preferred method is laparoscopy. The difficulty of laparoscopic cholecystectomy in diabetic patients is not clear and the preferred method of cholecystectomy in these patients is still under controversy. Therefore, this study was performed to evaluate the difficulty of laparoscopic cholecystectomy in diabetic and non-diabetic patients.
Methods: This retrospective analytical study was performed in Shahid Beheshti Hospital and Forghani Educational and Medical Center from April 2019 to April 2020. Samples were easily selected and 86 people in two groups of diabetic and non-diabetic patients were included in the study. All patient records were reviewed based on inclusion and exclusion criteria for factors such as age, sex, diet, duration of surgery, bleeding, adhesions, and open surgery, and finally, diabetes as a risk factor. It was compared between the two groups. Data were analyzed in SPSS software version 22, an independent t-test was used to analyze quantitative data and the chi-square test was used to analyze qualitative data. In this study, a significance level of less than 0.05 was considered.
Results: Abdominal scar, palpable gallbladder and gallstone were not significantly different between the two groups (P=0.33). But the history of cholecystectomy attacks was significantly different between the two groups (P<0.05). Laboratory values were not significant (P>0.05) . Hard operations in diabetic patients were more than nondiabetic
patients and even two cases of open surgery were seen in the group of diabetic
patients, but there was no significant relationship (P=0.09). Intraoperative bleeding was
statistically significant between the two groups (P=0.02), But adhesion during the
operation was not related (P=0.38).
Conclusion: Finally, our study showed that diabetes can be a predictive risk factor for the difficulty of cholecystectomy.

Approach and management of congenital cataract: A review article
Parisa Abdi, Zakieh Vahedian, Atefeh Dehghani, Mona Safizadeh, Elias Khalilipour ,
Volume 81, Issue 5 (August 2023)
Abstract
Congenital cataract refers to the presence of any opacity in the lens at birth or during early childhood. Cataracts in children can manifest as unilateral or bilateral, congenital or acquired, with specific inheritance patterns or occurring sporadically. Additionally, the condition can be stable or progressive. Congenital cataracts can be associated with certain systemic diseases, or they may occur in the eye of an otherwise healthy child in isolation. Congenital cataract is one of the main causes of blindness in childhood. According to the report of the World Health Organization in 2001, congenital cataract is responsible for about 5 to 20 percent of cases of childhood blindness in the world based on different geographical regions. Untreated cataract in children leads to a tremendous social, economic and emotional burden for the child, family and society. Common complaints associated with congenital cataracts often include leukocoria (white pupil), reduced vision, a child's inability to track objects up close, light sensitivity leading to eye closure, squinting, the presence of either small eyes (microphthalmos) or large eyes (buphthalmos), strabismus (eye deviation), and abnormal eye movements such as nystagmus. Childhood cataract-related blindness can be cured with early detection and appropriate management. Managing pediatric cataracts is a challenge. Increased intraoperative complications compared to adults, tendency to increase postoperative inflammation, associated with complications such as aphakic glaucoma and persistent fetal vasculature, change in refractive status of the eye, and tendency to develop amblyopia, all complicate the achievement of good vision. Congenital cataract has a good prognosis if it is diagnosed early and surgery is performed before 6 weeks. Factors that may adversely affect the outcome, include the presence of unilateral cataract, presence of nystagmus, strabismus, or any ocular defect such as microphthalmos and PFV. Pediatric cataract surgery has evolved over the years, and with improved knowledge about myopic shift and axial growth, outcomes for these patients have become more predictable. Optimal results depend not only on effective surgery, but also on careful postoperative care and visual rehabilitation. Hence, it is the combined effort of parents, surgeons, anesthesiologists, pediatricians and optometrists that can make the difference.

The study of predisposing factors related to perforation in patients with peptic ulcer in shahid beheshti hospital using fuzzy logic, qom, during 2019 to 2022
Mojdeh Bahadorzadeh, Mostafa Vahedian, Mostafa Vahedian, Elaheh Khan Babaei , Pouya Derakhshan-Barjoei ,
Volume 81, Issue 6 (September 2023)
Abstract
Background: Gastrointestinal ulcers occur due to an imbalance between the defense mechanisms of the gastric mucosa and damaging forces, especially gastric acid and pepsin. Overall, complications occur in 10%-20% of these patients, and 2%-14% of wounds eventually perforate. The use of non-steroidal anti-inflammatory drugs, steroids, smoking, Helicobacter pylori and high salt diet can be mentioned as important etiologies in this regard.
Methods: In this study, the information of patients with peptic ulcer who referred to Beheshti Hospital from 2019 to 2022 was analyzed. They were divided into two groups with perforation and without perforation. Then the variables of age, sex, smoking, NSAID and opium use, Helicobacter pylori infection and proton pump inhibitor use and previous history of peptic ulcer were investigated in two groups.
Results: The findings of the present study showed that the average age in the group with perforation was 48.7 and in the group without perforation was 42.04. In the non-perforated group, 58.5% of the patients were male, and in the group with perforation, 82.2% of the patients were male. In terms of smoking, 29.6% were smokers in the group without perforation and 50.4% were smokers in the group with perforation. Opium consumption was about 15.6% in people without perforation and about 33.3% in people with perforation. In terms of NSAID use, the prevalence was 35.6% in the group without perforation and 27.4% in the group with perforation. PPI consumption was 46.7% in the group without perforation and 21.5% in the group with perforation. In terms of the prevalence of H.pylori infection, the prevalence in the non-perforated group was 45.2% and in the perforated group it was 30.4%. The previous history of PUD was 56.3% in the non-perforated group and 37.8% in the group with perforation.
Conclusion: There was a significant difference between cigarette and opium consumption in the perforated and non-perforated groups, and PPI consumption in these two groups. In general, the prevalence of PUD was higher in males in both perforated and non-perforated types. Fuzzy results also confirmed the effect of risk factors concordance with perforation.

The role of artificial intelligence in glaucoma: a review article
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)
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.

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