Introducing sequential partial aortic clamp technique for proximal anastomoses and its advantages in myocardial protection in coronary artery bypass grafting.

Ischemic heart disease (IHD) is a common and potentially lethal cardiovascular disorder. Coronary artery bypass grafting (CABG) is a standard procedure for treating IHD. This study aims to introduce a novel technique for proximal anastomoses in CABG.

The evaluation of bariatric surgery effect on cardiac structure and function using transthoracic echocardiography: a cohort study.

Background: Obesity is a pathology and a leading cause of death worldwide. Obesity can harm multiple organs, including the heart. In this study, we aim to investigate the effect of bariatric surgery and following weight loss on cardiac structure and functions using echocardiography parameters in patients with morbid obesity.

Structural validity of the Pittsburgh Sleep Quality Index among medical students in Iran.

The Pittsburgh Sleep Quality Index (PSQI) is a self-reported questionnaire evaluating sleep quality based on seven domains of sleep disorders. However, the factor structure of PSQI needs to be well-established among medical students. This study was conducted to establish the factor structure of PSQI among medical students.

Predictive factors of delayed bleeding after percutaneous nephrolithotomy requiring angioembolization.

Objectives: To investigate the predictive factors of delayed post-percutaneous nephrolithotomy (PCNL) haemorrhage because of arteriovenous fistula (AVF) or pseudoaneurysm (PA) and compare the factors between AVF and PA.

Patients And Methods: This is a case-control study with a case-to-control ratio of 1:3. Out of 5077 patients who underwent PCNL from April 2015 to April 2018 in three different teaching hospitals, 113 had post-PCNL haemorrhages because of AVF and/or PA.

Has the COVID-19 pandemic affected ureteral stone management in pregnant women? A retrospective single-center study.

Introduction: This study aimed to evaluate the effect of coronavirus disease (COVID-19) on the patients' referral in the pregnant population and also investigate each treatment approach's advantages and disadvantages for acute renal colic in pregnancy.

Methods: In this retrospective study, we included all pregnant women with ureteral stones referred to a referral center between January 2019 and March 2021.

Results: Among 53 pregnant women, 18 (33.

Evaluating the effect of vitamin D supplementation on serum levels of 25-hydroxy vitamin D, 1,25-dihydroxy vitamin D, parathyroid hormone and renin-angiotensin-aldosterone system: a systematic review and meta-analysis of clinical trials.

Background: Vitamin D, one of the most essential micronutrients, is crucial in various health outcomes. However, previous studies showed conflicting results and uncertainty about vitamin D supplementation's optimal dosage and duration. In this study, we aimed to evaluate the vitamin D supplements efficiency on serum levels of 25-hydroxy vitamin D (25(OH)D), 1,25-dihdroxy vitamin D (1,25(OH)2D), parathyroid hormone (PTH) and renin-angiotensin-aldosterone system (RAAS) in adults.

Direct oral anticoagulants versus vitamin K antagonists: Which one is more effective in atrial fibrillation.

Background: The optimal approach for anticoagulation in patients with bioprosthetic valves and atrial fibrillation (AF) remains a subject of debate. A meta-analysis using updated evidence to evaluate the efficacy and safety of direct oral anticoagulants (DOACs) compared to vitamin K antagonists (VKAs) in patients with AF and bioprosthetic valves to address this controversy.

Methods: A comprehensive search was conducted in multiple databases, including PubMed, Scopus, Web of Science, ProQuest, and the Cochrane Central Register of Controlled Trials, up until March 2023.

Face-to-face, online, or blended: which method is more effective in teaching electrocardiogram to medical students.

Background: Electrocardiogram (ECG) remains an important medical diagnostic and screening tool. This study aimed to compare the effectiveness of online classes instead of traditional face-to-face or blended methods in medical students' ECG learning.

Methods: Two hundred and fifteen medical students (including 105 (48.

Predictive factors for type A aortic dissection mortality based on electrocardiogram parameters and clinical presentations.

Background: Aortic dissection is a rare but potentially lethal disorder and may be associated with electrocardiogram (ECG) changes. In this study, we aim to investigate ECG-related parameters alongside clinical presentations of type A aortic dissection to come up with the predictive factors for the severity of the disease and its mortality rate.

Methods: In this retrospective study, 201 patients with type A aortic dissection were studied between March 2015 and March 2020.

Optimal method for ablation of atypical AVNRT.

Background: Considering that ablation of atypical AVNRT may be unsuccessful after ablation at the right posterior septum, in this study, we aimed to present an optimal method for ablation of atypical AVNRT. Also, we evaluated the efficacy of this technique for preventing recurrences.

Methods: This is a prospective, double-center study.