OBJECTIVE To observe the relationship between coronary and carotid/cerebral atherosclerotic stenosis. METHODS Carotid/aortocranial angiography and coronary angiography were performed in 34 CAD patients complicated with symptomatic cerebral ischemia. Patients were divided into 3 subgroups according to the extent of arterial stenosis determined by angiography. There were 5 light, 4 moderate and...

BACKGROUND We investigated the impacts of flow demand and native coronary stenosis on graft flow and patency. METHODS We reviewed the angiograms of 549 bypass grafts in 301 patients who underwent off-pump coronary artery bypass grafting since 2007. Grafts consisted of 237 internal thoracic artery to left anterior descending artery; 97 internal thoracic artery and 52 saphenous vein grafts to l...

From the *Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; †Division of Cardiology, St. Michael’s Hospital, University of Toronto, Toronto, Ontario, Canada; ‡Department of Medical Imaging and Cardiology, Toronto General Hospital, University of Toronto, Toronto, Ontario, Canada; §Division of Cardiac Surgery, St. Michael’s Hospital, University of Toronto, Toronto, Ontario, Ca...

OBJECTIVES Vein graft disease is a major drawback of coronary artery bypass grafting. However, histopathologic studies of old human aortocoronary grafts are scarce. METHODS We screened patients undergoing redo coronary artery bypass grafting at three university hospitals and selected those with at least one excisable old vein graft. Native non-grafted saphenous veins were also obtained as con...

2835 Correspondence To the Editor: A 47‑year‑old male patient was admitted because of chest discomfort for 2 weeks. He had no obvious incentive precordial discomfort 2 weeks ago, accompanied by palpitation. He immediately went to the town hospital. Electrocardiogram (ECG) showed myocardial infarction. Coronary angiography showed coronary artery disease accompanied by a ventricular aneurysm. The...

The effects of coronary pressure on coronary stenosis resistance were studied in 13 open-chest dogs. A noncircumferential stenosis was produced in the circumflex coronary artery by placing sutures into either side of the artery and invaginating a portion of the arterial wall by tying the sutures. Coronary pressure both proximal and distal to the stenosis and coronary flow were measured. Coronar...

The effects of coronary pressure on coronary stenosis resistance were studied in 13 open-chest dogs. A noncircumferential stenosis was produced in the circumflex coronary artery by placing sutures into either side of the artery and invaginating a portion of the arterial wall by tying the sutures. Coronary pressure both proximal and distal to the stenosis and coronary flow were measured. Coronar...

BACKGROUND Coronary artery disease (CAD) is associated with the numbers of risk factors causing coronary atherosclerosis. Coronary artery stenosis is mostly caused by coronary atherosclerosis. OBJECTIVE This study aims to analyze the association between coronary artery stenosis and cardiovascular risk factors. METHODS An observational study was conducted among CAD patients. The diagnostic c...

conclusions in our patients, the ra grafts had an acceptable patency rate in 2 to 5 years’ follow-up. although the sv grafts had a relatively higher patency rate than ra grafts in our asymptomatic patients, the patency rates in ra and sv grafts were close to each other. the ra graft function was poor in the patients with a higher number of risk factors and in the females. background patency of ...