Overview

This study aims to evaluate the effect of angiotensin receptor/neprilysin inhibitors (ARNI) on improving ischemic mitral regurgitation (IMR) in patients with coronary artery disease undergoing isolated coronary artery bypass grafting (CABG) through a randomized controlled clincial trial.

Eligibility

Inclusion Criteria:

1. Fully informed and voluntarily signed informed consent;
2. Received CABG and moderate IMR was diagnosed on two consecutive preoperative transthoracic echocardiography (according to 2021 ESC/EACTS Guidance Standards )

Exclusion Criteria:

1.Symptomatic hypotension and/or a SBP < 100 mmHg at screening; 2.Estimated GFR < 30 mL/min/1.73m2; 3.Serum potassium > 5 mmol/L at screening; 4.History of angioedema or unacceptable side effects while receiving ACE inhibitors or ARBs; 5.Patients receiving mitral valve intervention at the same time, or have participated in other clinical trials, or are unwilling to participate in this study.