BACKGROUND Side clamping to perform saphenous vein-to-aorta proximal anastomosis is a well known cause of cerebral embolization during coronary bypass surgery. Automatic and manual devices have been introduced to avoid aortic clamping and facilitate proximal anastomosis but the manual ones only allow the traditional hand-sewing running suture. Nevertheless, they are not easy to use and very exp...

we report a unique case of chronic dissection of the ascending aorta complicated with huge and thrombotic pseudoaneurysm in a patient with coarctation of descending aorta. preoperative investigations such as transesophageal echocardiography (tee) confirmed the diagnosis of dissection. intraoperative findings included a12 cm eccentric bulge of the right lateral side of dilated the ascending aort...

introduction aortic surgery has made much progress recently. yet the combination of aortic surgery and coronary artery bypass grafting has remained a major issue for the surgeons. patient and observation herein, we present a case of severe aortic insufficiency with aortic aneurysm concomitant with single coronary artery disease on the right coronary artery. the patient underwent bentall procedu...

Few studies have investigated the effect of exercise on homocysteine and 15-F21-isoprostane in animal models. The present study was designed to examine the effect of long-term exercise and/ or high cholesterol diet on MDA, 15-F21-isoprostane and total homocysteine in the aorta and plasma of rabbits. Methods: 56 male rabbits were divided into four groups: normal diet (control), normal diet wi...

BACKGROUND Off-pump coronary artery bypass (OPCAB) has been shown to reduce the risk of neurologic complications as compared to coronary artery bypass grafting performed with cardiopulmonary bypass. Side-clamping of the aorta while constructing proximal anastomoses, however, still carries substantial risk of cerebral embolization. We aimed to perform a comprehensive meta-analysis of studies ass...

introduction: human embryonic stem cells (hescs) are pluripotent cells that can proliferate and differentiate to many cell types. their electrophysiological properties have not yet been chracterzed. in this study, the passive properties (such as resting membrane potential, input resistance and capacitance) and the contribution of delayed rectifier k+ channel currents to the membrane conductance...

pseudoaneurysms of the ascending aorta, which are rare and life-threatening complications in cardiovascular surgeries, can be caused by the bentall procedure. we describe a 44-year-old woman, who had a medical history of acute aortic dissection (type a) and the bentall procedure and was admitted because of exertional dyspnea, edema of the lower extremities, ascites, and holosystolic murmur in t...

aortic dissection occurs when a tear develops in the wall of the aorta, which is rare in the young population. this fatal disorder is hard to diagnose, especially in young patients. we present the case of aortic dissection in a 15-year-old boy referred to the emergency department of yazd university of medical sciences in november 2015. the patient presented to our department with sudden acute c...