The Barriers to Rapid Reperfusion in Acute ST-Elevation Myocardial Infarction.

Introduction: This study aimed to quantify the contribution of various obstacles to timely reperfusion therapy in acute ST-elevation myocardial infarction (STEMI) and to improve performance in a mixed remote rural/urban region.

Methods: From November 1, 2020 to April 23, 2021, patients with acute STEMI were prospectively monitored with the critical time intervals, treatment modalities, and outcomes registered. Selected clinical decision-makers in 11 hospitals were appointed as improvement agents and systematically provided with weekly updated information about absolute and relative performance.

The risk factors for radial artery and saphenous vein graft occlusion are different.

To determine risk factors for radial artery and saphenous vein graft occlusion during long-term follow-up after coronary artery bypass grafting (CABG). From a cohort of 119 patients who had received a radial artery graft, 76 - of whom 55 also had at least one saphenous vein graft - underwent a preplanned direct angiography and anthropometric, biochemical, and endothelial function assessment 7.6-12.

Direct angiography demonstrates equal 8-12 years patency rates of radial artery and saphenous vein grafts.

The benefits of coronary artery bypass surgery depend on lasting graft patency. To aid rational graft selection, the relative long-term merits of radial artery and saphenous vein grafts need to be determined by a gold standard method and with minimal clinically driven selection bias. The patency rates of various conduits were determined by direct angiography in 76 patients from a cohort of 119 undergoing coronary artery bypass grafting 7.

Radial artery graft patency relates to gender, diabetes mellitus and angiotensin inhibition.

Unlabelled: The radial artery is resistant to atherosclerotic degeneration and therefore appears more attractive for coronary artery bypass grafting than the saphenous vein. However, the patency of radial artery grafts varies widely among studies. Therefore, before deciding whether to adopt this as the conduit of choice second to internal mammary artery grafts, we have prospectively monitored our first cohort of patients with radial-to-coronary bypasses.

Coronary artery disease cannot be reliably evaluated by 16-slice multidetector spiral computed tomography.

Objectives: Angiography by selective catheterization is the standard method for coronary artery imaging but carries a risk of rare, but serious complications. We investigated whether 16-slice multidetector spiral computed tomography (MDCT) could substitute for selective angiography for evaluation of coronary artery disease in surgically revascularized patients.

Design: In a setting closely resembling routine clinical practice, 45 patients who had been operated with coronary artery bypass grafting 508-1135 (mean 811) days before were examined with MDCT and conventional selective angiography on the same day.

Coronary bypass graft patency cannot be determined by multidetector spiral computed tomography.

Objectives: Angiography by selective catheterization is the reference standard for coronary bypass graft patency assessment but carries a risk of serious complications. We have investigated whether 16-slice multidetector spiral computed tomography (MDCT) can substitute for selective angiography.

Design: Two to three years after coronary artery bypass grafting, 45 patients with a total of 156 bypasses (100 single and 28 sequential grafts) were examined with both MDCT and conventional selective angiography on the same day.