Pregnancy outcome in women with mechanical prosthetic heart valvesat their first trimester of pregnancy treated with unfractionated heparin (UFH) or enoxaparin: A randomized clinical trial.

Pregnancy increases the risks of thromboembolism for the mother and fetus in patients with mechanical heart valves. The results of some studies have indicated that low molecular weight heparin (LMWH), in comparison with unfractionated heparin (UFH), leads to a lower incidence rate of thrombocytopenia and a decrease in bleeding. The present randomized clinical trial involved 31 pregnant women with mechanical heart valves at their first trimester (0-14 weeks) of pregnancy.

Correlation between vitamin D level and coronary artery calcification.

Background: Considering the role of Vitamin D in cardiovascular disease (CVD) and the relationship between coronary artery calcification (CAC) and CVD, we aimed to investigate the association between the serum level of Vitamin D and CAC.

Materials And Methods: This was a cross-sectional study on 67 consecutive patients who were referred for performing computed tomography angiography. We used Spearman correlation to evaluate the relationship between Vitamin D and CAC and then linear regressions to control for demographics and vascular risk factors.

The Value of Multi-slice Computed Tomography Compared to Conventional Coronary Angiography for Detecting In-stent Restenosis.

Background: Diagnostic value of multi-slice computed tomography (MSCT) for detecting in-stent restenosis in comparison with conventional coronary angiography remained uncertain. The present study aimed to determine the value of MSCT for detecting in-stent restenosis.

Materials And Methods: This historical cohort study was included 226 patients with the history of percutaneous coronary intervention from 2000 to 2014 that referred to MSCT Unit at Alzahra Heart Center in Isfahan.

Diagnostic performance of 64-row coronary CT angiography in detecting significant stenosis as compared with conventional invasive coronary angiography.

Background: The aim of the present study is to evaluate the accuracy of 64-multidetector-row computed tomography angiography (CTA) in comparison to conventional invasive angiography (CIA) in the diagnosis of significant stenosis (≥ 50%) of coronary artery tree.

Methods: Assessment of CTA in the detection of coronary artery disease (CAD) was performed in patients referred because of symptoms or stress studies suggestive of ischemia. For this purpose, among more than 1000 cases of coronary CTA in a 20 months period a study population of 54 patients suspected to have significant stenosis of the coronary artery tree was investigated.

Myocardial bridge. Surgical outcome and midterm follow up.

Objective: To investigate the results of surgery and long-term follow up in 26 patients who were symptomatic due to myocardial bridge.

Methods: From 1999-2004 more than 18800 coronary angiography were performed in the Shahid Madani Heart Hospital, Tabriz, Iran. Of these, 290 (1.