Background: Calcium channel blockers such as nifedipine possess a dramatic role in treatment of various cardiovascular diseases including angina pectoris, cardiac arrhythmias, and hypertension, so study of cardiovascular effects of derivatives of these drugs seems necessary. The aim of the present study was to evaluate the effects of synthesized dihydropyridine derivatives on chronotropic and i...

Background and Objectives: Atrial fibrillation is one of the most common disorientations after coronary artery bypass graft surgery and can affect the chance of survival in the first year after surgery. The present study aimed to determine the incidence of atrial fibrillation after coronary artery bypass graft surgery and its risk factors.   Methods: This cross-sectional study was performed on...

Atrial Fibrillation is a supra ventricular tachyarrhythmia, which is characterized by the deterioration of atrial mechanical function and aberrant. It has become a social and economic problem because a large percentage of the world population suffering from this disease. The early diagnosis of this fatal cardiac Arrhythmia can be prevented and managed it. In this study, we used non-invasive met...

This investigation was conducted to compare the photosynthetic indices in ironwood trees infected by Viscum album L. and healthy trees located both in stand and out of stand in plain forest of Tamishan, Nour city. In each position, five healthy and five infected trees were selected and photosynthetic parameters, stomatal conductance, transpiration and internal CO2 were examined. Results showed ...

AVNRT, (Atrioventricular nodal reentry tachycardia), atrial tachycardia and atrial flutter are 3 kinds of supraventricular tachycardia, which their mechanism are explained based on reentry. A 60-years-old man is presented with all of the above-mentioned arrhythmias, responsive to intravenous injection of adenosine. Radiofrequency ablation of the slow pathway territories cured all of them. There...