The feasibility of bypass graft angiography by right radial access.

Background And Objectives: Left transradial coronary angiography may result in damage of both radial arteries in patients who experienced right radial access. In some patients, the left radial artery has been used as a graft. We investigated whether graft angiography using right radial access is feasible in patients with bypass surgery to preserve the left radial artery as a future graft.

Initial experience of retrograde wire approach in coronary chronic total occlusion intervention.

Background And Objectives: Retrograde wire approach has been emerged as a useful tool to enhance success rate in coronary chronic total occlusion (CTO) intervention. Therefore, we tried to report the initial experience of retrograde approach and its clinical implication on CTO intervention.

Subjects And Methods: From February 2007 to July 2008, retrograde approaches were performed in 28 patients with 31 CTO lesions out of 61patients.

Role of vasospasm in acute coronary syndrome: insights from ergonovine stress echocardiography.

Background: Previous studies have shown that ergonovine stress echocardiography (ESE) may be a valuable noninvasive tool for the diagnosis of vasospasm after the confirmation of no significant fixed stenosis.

Methods And Results: From May 1999 to January 2002, 52 patients who presented with acute coronary syndrome (ACS) and had normal or near-normal coronary angiograms were enrolled. A 50 microg bolus of ergonovine was given intravenously at 5-min intervals, until a positive result was observed or a total dose of 350 microg was given.