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Results released for first multicenter study of hybrid revascularization
Date:3/10/2013

ern of coronary artery disease that could be reasonably treated with either hybrid techniques or multivessel percutaneous intervention: both an LAD (left anterior descending) lesion and a significant stenosis in at least one other non-LAD coronary artery. This was a group of patients with low to medium complexity coronary artery disease."

The primary measure of safety was the rate of major adverse coronary and cerebrovascular events (MACCE: includes death, heart attack, stroke or repeat revascularization procedure). Over the first year, hybrid patients had a MACCE rate of 11 percent (0.143 events per patient-year) while PCI patients had a rate of 10 percent (0.119 events per patient year), with hybrid revascularization displaying a trend toward a MACCE rate lower than PCI after the first year. Patients were followed for up to an average of 17.5 months and over that time, the MACCE rate for hybrid revascularization patients was 0.868 times that for PCI patients, adjusted for baseline risk.

"A question this study starts to address is, whether short-term outcomes and complications over the first year are comparable between these two alternative therapies," Puskas says. "These results suggest that hybrid revascularization is as safe in the first year, with a trend to benefit over the longer term. It would be a challenge to markedly out-perform PCI over the first year we expect that if hybrid revascularization has an advantage, it will come out over the next few years."

He explains that multivessel coronary bypass surgery usually includes a left internal mammary artery (LIMA) graft for the blockage in the left anterior descending coronary artery (LAD), along with veins from the legs for the other blocked vessel(s). The LIMA graft has several advantages: most importantly, the LIMA graft stays open longer than vein grafts, because the LIMA is conditioned to higher blood pressures.

"We know the left internal mammary artery graft is the m
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Contact: Quinn Eastman
qeastma@emory.edu
404-727-7829
Emory Health Sciences
Source:Eurekalert

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