background: isolated right bundle branch block (rbbb) is a common finding in the general population. the atrioventricular node (avn) artery contributes to the blood supply of the right bundle branch. our hypothesis was that the anatomy of the avn artery and the pattern of dominancy differ between subjects with and without rbbb. methods: w e retrospectively studied the coronary angiography of 92...

background: small side branches, albeit less important than their larger counterparts, have not yet received due attention in the literature. nor has there ever been a comparison between drug-eluting stents and bare metal stents apropos side branch occlusion . the aim of this study was to compare the patency of small (≥0.5 and ≤1.5 mm in diameter) side branches with respect to bare metal vs. dr...

The effect of four different levels of irrigation periods, including normal irrigation, irrigation after 100, 150, and 200mm evaporation, with three different bio-fertilizer including control, Mycorrhiza, and Rhizobium were investigated on morphological and yield traits of guar. The experiment was conduct in form of split-plot design with irrigation periods as main plots and bio-fertilizers as ...

ndovascular management of acute and chronic aortic dissection was pioneered early last decade, with reported survival rates as high as 100%, and is fast becoming an established treatment modality for complicated aortic dissection. The conventional endovascular approach involves the closure of the primary entry tear by endograft with induction of false lumen thrombosis and subsequent aortic remo...

Introduction Right ventricular outflow tract tachycardia is one of the most common ventricular tachycardia (VT) observed in young patients, accounting for 60%–80% of all idiopathic VTs. The QRS morphology of this tachycardia is left bundle branch block (LBBB) type, inferior axis, and wide QRS complex. In contrast, focal VT originating from the right bundle branch (RBB) is a rare idiopathic VT. ...