To evaluate right ventricle function after surgical ventricle restoration (SVR) on cardiac magnetic resonance (CMR).

We retrospectively analyzed 31 patients (29 males; aged 61±10 years, mean ±standard deviation) who underwent 1.5-T CMR before and after SVR. Short axis electrocardiographically triggered cine images were acquired and segmented by a reader with four-year experience in CMR to obtain end-diastolic and end-systolic volumes. Ejection fraction (EF) was considered improved when increased of >5%, unchanged between +5% and -5%, worsened when decreased by >5%. Wilcoxon, Spearman, and Fisher tests were used.

Median left EF was 24% (interquartile interval, 18%-30%) before SVR and 37% (29%-46%) after SVR (P<0.001), median right EF 51% (46%-64)% and 57% (46-63%), respectively (P=0.860). The correlation between left and right EF, not significant before SVR, became significant after SVR (r=0.447; P=0.012). The difference in EF (EF after SVR minus EF before SVR) for the right ventricle was significantly correlated with that for the left ventricle overall (r=0.554; P=0.002) and for left anterior descendent occlusion (r=0.837; P=0.005), only borderline significant for three-vessel occlusion (r=0.554;...

In patients treated with SVR, an improved left EF after SVR was associated with an improved right EF in 59% while 78% of patients without improved left EF showed a decreased right EF.

S. Castelvecchio, L. Menicanti, M. Di Donato. Surgical ventricular restoration to reverse left ventricular remodeling. Curr Cardiol Rev, 2010(6), pp.15-23 E. Larose, P. Ganz, H. G. Reynolds et al. Right ventricular dysfunction assessed by cardiovascular magnetic resonance imaging predicts poor prognosis late after myocardial infarction. J Am Coll Cardiol, 49(8) (2007), pp.855-62. S. A. F. Tulner et al. Beneficial Hemodynamic and Clinical Effects of Surgical Ventricular Restoration in Patients With Ischemic Dilated Cardiomyopathy. Ann Thorac Surg, 82 (2006), pp.1721–1728 S. G. Lloyd, G. D. Buckberg,...

Francesco Secchi, MD Radiologist Cardiovascular MR/CT Imaging U.O. Radiodiagnostica IRCCS Policlinico San Donato Piazza Malan, San Donato Milanese Milano, Italy Tel: +39-0252774642 Fax: +39-0252774925 E-mail: [email protected]