OBJECTIVES Trends in coronary bypass surgery require less invasive techniques and more conduits. We investigated the ability of direct coronary perfusion from the left ventricle to support regional and global cardiac function. METHODS A conduit was established between the left ventricle and left anterior descending coronary artery (n = 6) with an interposed Starling resistor that allowed for ...

We report here on a case of ascending aortic dissection combined with anterior myocardial infarction that was caused by a retrograde dissection into the left main coronary trunk and proximal left anterior descending artery. We successfully treated this with stenting of the left main coronary artery and proximal left anterior descending artery, and this allowed for the definitive surgical correc...

A major coronary artery crossing the right ventricular outflow tract in patients with tetralogy of Fallot interferes with a transannular patch, and preoperative detection of this artery is important. We evaluated the ability of two-dimensional echocardiography to define noninvasively the coronary artery anatomy in 37 consecutive patients (age range, 1 day to 18 years; mean age, 40.9 months). Th...

Under certain conditions, a progressive increase in vascular resistance occurs within ischemic myocardium during the first 3 hours after coronary artery stenosis. We tested the hypothesis that the increased resistance is due to local release of a vasoconstrictor substance in the ischemic region. Relative ischemia was produced in anesthetized dogs by a combination of acute coronary arterial sten...

Proper detection of the deeply embedded left anterior descending artery remains a challenge. Many authors proposed different methods for artery identification, such as ultrasound Doppler, cineangiography, retrograde dissection overlying tissues, and exposure over the probe. Choice of the technique often depends on the surgeon's acquaintance and experience. The article compares and summarizes di...

spontaneous coronary artery dissection (scad) is a rare condition that can result in unstable angina, acute myocardial infarction, and sudden death. this condition may occur particularly in women during late pregnancy and in the postpartum period. we present the case of a 33-year-old african american woman, who had spontaneous left anterior descending coronary artery (lad) dissection two weeks ...

please cite this article as : taherpour z, seyedian m, alasti m. simultaneous right coronary artery spasm in a patient with anterior st-segment elevation myocardial infarction: a case report. novel biomed 2013;1:29-33. simultaneous occlusion of two vessels causing infarction at different territories is an uncommon finding. we report simultaneous right ventricular and anterior st-segment elevati...

Under certain conditions, a progressive increase in vascular resistance occurs within ischemic myocardium during the first 3 hours after coronary artery stenosis. We tested the hypothesis that the increased resistance is due to local release of a vasoconstrictor substance in the ischemic region. Relative ischemia was produced in anesthetized dogs by a combination of acute coronary arterial sten...

Objectives. We hypothesized that atherectomy would be superior to balloon angioplasty for ostial and nonostial left anterior descending coronary artery lesions. Background. Balloon angioplasty of ostial coronary artery lesions has been associated with a lower procedural success rate and a higher rate of complications and of restenosis than angioplasty of nonostial stenoses. Directional coronary...