Predictive Value of Viable Myocardium of Papillary Muscle-Ventricular Wall Complex for Improvement in Moderate Ischemic Mitral Regurgitation.

ABSTRACT:

Background

Performing a mitral valve procedure during coronary artery bypass grafting (CABG) in patients with coronary artery disease complicated by moderate ischemic mitral regurgitation (IMR) remains controversial. This study aimed to assess the benefit of isolated CABG and to develop a new index of viable myocardium within the papillary muscle-ventricular wall complex (VM-PM-VWC) to predict the improvement of IMR by CABG alone.

Methods

In total, 122 patients (age, 62.34 ± 8.53 years; 78.70% male) with moderate IMR who underwent CABG alone at Beijing Anzhen Hospital were retrospectively analyzed. All patients underwent ^99mTc-sestamibi single-photon emission computed tomography (SPECT) and ¹⁸-fluorine fluorodeoxyglucose positron emission tomography (

SUBMITTER: Wei Z 

PROVIDER: S-EPMC11963185 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature