Abstract
This study was designed to evaluate patients aged less than 40 years implanted with tissue heart valves with respect to survival, thromboembolism, structural degeneration and quality of life. Between January, 2000 and December, 2016, 132 patients (51 males) with rheumatic heart disease underwent mitral valve replacement using Carpentier-Edwards, perimount, pericardial bioprostheses. The patients' ages ranged between 12 and 39 years (mean±SD 30.12±5.51 years). The hospital and late mortality were 1.5% and 1.5% respectively. The total cumulative follow-up period was 1330.98 patient-years with a mean of 124.78±50.3 months (range, 1-204 months). The actuarial survival and actuarial event-free survival at 204 months was 96.9% (±0.01%) and 93.4%(±0.03%) respectively. There was one episode of thromboembolism (0.32 events per 100 patient years). Six (4.7%) patients underwent redo mitral valve replacement for severe bioprosthetic degeneration with stiffening and calcification using a Medtronic mechanical prosthesis (Medtronic Open Pivot, MN, USA). We conclude that Carpentier-Edwards perimount pericardial prosthesis provides satisfactory clinical performance in a young population with a low risk of degeneration and other valve-related events.
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