A Multi Center Experience: Is Valve Replacement Safe for Patients with Hugely Dilated Left Ventricle?
Keywords:Dilated left ventricle, Mitral regurgitation, Aortic regurgitation
Background: Dilated left ventricle occurs in chronic aortic and mitral regurgitations. We describe the early outcome of mitral and aortic valve replacement for patients with severely dilated left ventricle in different
Methods: From March 2014 to December 2018, 620 patients with left ventricular end-diastolic diameter (LVEDD) of ≥ 70 mm underwent valve replacement procedures in 8 cardiac surgery centers in Egypt. One hundred ninety four cases (31.3%) underwent aortic valve replacement, 173 cases (27.9%) underwent mitral valve replacement, 123 cases (19.9%) underwent double valve replacement, 59 cases (9.5%) underwent double valve replacement with either tricuspid valve repair or replacement, 33 cases (5.3%) underwent mitral valve replacement with either tricuspid valve repair or replacement, 20 cases (3.2%) underwent mitral valve replacement with CABG, 10 cases (1.6%) underwent aortic valve replacement with CABG, while 8 cases (1.3%) underwent aortic valve replacement with ascending aortic
Results: Four patients (0.6%) developed new postoperative renal failure, which required dialysis. Twenty-nine patients (4.7%) required reoperation for bleeding. One patient (0.2 %) developed sternal dehiscence. Five patients (0.8%) postoperatively developed stroke. Twenty-five patients (4%) died, and the main causes of death were low cardiac output and sepsis with eventual multi-organ failure.
Conclusion: Valve replacement in patients with hugely dilated left ventricle are safe operations with satisfactory outcomes even if combined with other procedures, especially with proper preoperative preparation, intraoperative preservation of posterior mitral leaflet, and meticulous postoperative follow up in the surgical ICU.
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