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Clinical Trial Summary

Coronary artery bypass grafting(CABG) is an effective procedure in treating severe coronary artery disease(CAD). Optimal surgical method for CAD patients with functional ischemic mitral regurgitation(FIMR) is still controversial. This study will evaluate the different effectiveness of CABG plus mitral valve annuloplasty versus CABG alone on patients with moderate FIMR.

Clinical Trial Description

CAD is a severe health problem worldwide. It is a result of plaque buildup, and eventually leads to the reduction of blood supply on myocardium. CABG is one of the procedure to improve symptoms caused by myocardial ischemia. And it is especially effective in treating severe coronary artery disease.

FIMR is one of the most common complications of CAD. After acute myocardial infarction, FIMR will occur in 17%-55% patients, and 3%-19% of them will develop into moderate or severe MR eventually. FIMR is an important prognostic factor of CAD, the in-hospital mortality rate of patients with IMR is significantly higher in several studies. In patients with mild MR, CABG alone is enough to improve myocardial ischemia; however, in people with moderate mitral regurgitation, there is still a dispute on whether mitral valve annuloplasty is beneficial at the time of CABG. The purpose of this study is to determine the optimal surgical procedure of CAD patients combined moderate FIMR.

This study will compare the effectiveness of different surgical procedure on people with moderate FIMR by enrolling people with enrolling people with CAD who require CABG procedure and have moderate mitral regurgitation. At baseline study, a questionnaire will be assigned to undergo either CABG surgery of CABG plus mitral calve annuloplasty. Blood, urine and tissue samples will be collected after the surgery. All participants will be followed up at month 1,3,6,12, participants will take part in a medication history review, a physical examination, a blood collection to evaluate the brain natriuretic peptide and an echocardiogram. ;

Study Design

Related Conditions & MeSH terms

NCT number NCT03525041
Study type Interventional
Source Beijing Anzhen Hospital
Contact Kui Zhang, MD
Phone 86-10-64456411
Status Recruiting
Phase N/A
Start date May 1, 2017
Completion date June 30, 2020

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