Postmyocardial infarction left ventricular dysfunction – Assessment and follow up of patients undergoing surgical ventricular restoration by the endoventricular patchplasty

Abstract

Background: Surgical ventricular restoration with endoventricular patchplasty improves left ventricular function and restores left ventricular shape. Method: The study included patients who presented with transmural anterior myocardial infarctions between June 2007 and May 2008. Briefly the technique included – coronary revascularization, resection of the endocardial scar, left ventricular reconstruction using an endoventricular synthetic patch. Left ventricular geometric parameters were studied preoperatively, early postoperatively, at 3 and 6 months and statistically analyzed by SPSS 14 software package. Results: The ejection fraction increased from 33.5 ± 5.02 to 37.77 ± 7.17 immediate postoperatively. The preoperative left ventricular ejection fraction – a mean of 33.25% (±5.02%), increased by 10.3%–11% at the third and fourth follow up respectively after surgical ventricular restoration (p ≤ 0.001). The left ventricular end systolic volume index improved from a mean of 48.84 ± 11.37 preoperatively to 24.66 ± 5.92 postoperatively (p ≤ 0.001). Conclusions: Surgical ventricular restoration in our study has clearly demonstrated a positive effect on LV geometry.

Keywords

• Surgical ventricular restoration surgery
• Ventricular remodeling
• Left ventricular end systolic volume index
• Wall motion score index
• Diastolic sphericity index