Abstract
We report early and midterm outcomes of elderly patients who underwent valve-sparing root replacement (VSRR) compared with younger patients and those with Bentall procedure. From October 1999 to October 2017, 73 patients greater than or equal to 65 years of age who underwent VSRR procedure were assigned as group S. Two hundred thirty-two VSRR patients who were between 15 and 64 years of age were assigned as group Y. Forty-five patients greater than or equal to 65 years of age who underwent Bentall procedure were assigned as group R. Preoperative grades of aortic regurgitation were 3.4 of 4 in group S, 3.1 of 4 in group Y, and 3.3 of 4 in group R (p= 0.07). Hospital mortality was found in 1 (1.4%) patient in group S, 3 (6.7%) in group R, and 2 (0.9%) in group Y. Postoperative survival at 5 years was 88.5% in group S, 98.7% in group Y, and 82.4% in group R (p < 0.01). Freedom from more than mild aortic regurgitation at 5 years was 81.0% in group S and 85.4% in group Y. Follow-up echocardiography disclosed an effective aortic valve orifice area of 1.76 cm2 in group R, 2.40 cm2 in group Y, and 2.41 cm2 in group S (p < 0.01), and peak pressure gradient across the aortic valve was 17.7 mm Hg in group R, 13.6 mm Hg in group Y, and 10.8 mm Hg in group S (p< 0.01). Similar early and late outcomes were achieved in elder VSRR patients compared with younger patients. A better postoperative valve performance was demonstrated in VSRR patients than patients undergoing valve-replacement.
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