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Ventricular Restoration by Linear Endoventricular Patchplasty and Linear Repair

Department of Cardiothoracic Surgery, Narayana Hrudayalaya, Bangalore, India

For reprint information contact: V Rao Parachuri, FRCS, Tel: 91 80 783 5000, Fax: 91 80 783 2648, Email: srili2881967{at}yahoo.com, Narayana Hrudayalaya, 258/A Bommasandra Industrial Area, Anekal Taluk, Bangalore 560099, India.

Surgical ventricular restoration improves cardiac function in patients with large left ventricular aneurysms. Aneurysm repair techniques have evolved to geometric repair by exclusion of the aneurysmal area with a circular patch. But even circular endoventricular patchplasty may result in a less elliptical ventricle. We modified the techniques of both linear and geometric repair. The early and intermediate outcomes in 102 patients with post-infarction left ventricular aneurysm, treated between 2001 and 2004, were analyzed. Concomitant procedures included coronary artery bypass grafting in 73 patients, mitral valve repair in 29, cryoablation in 3, and post-infarction ventricular septal rupture repair in 3. Overall mortality was 12.7%. Left ventricular ejection fraction increased significantly postoperatively, from 31.5% ± 6.5% to 34.2% ± 5.9%. There were significant decreases in end-diastolic volumes from 140.3 ± 38.3 to 100.8 ± 33.5 mL, and end-systolic volumes from 95.1 ± 26.1 to 66.0 ± 21.7 mL. These benefits continued at the 12- to 52-month follow-up. Our modified technique restores a near physiological left ventricular geometry and has a favorable clinical outcome.