Pulmonary valve replacement function in adolescents: a comparison of bioprosthetic valves and homograft conduits

The Annals of Thoracic Surgery
Sarosh P BatlivalaDoff B McElhinney

Abstract

Data comparing function and reintervention rates of various pulmonary valve replacements in adolescents are sparse. New transcatheter therapies-including transcatheter pulmonary valves-have been developed, and their utilization could be justified by these data. We performed a retrospective review that included baseline and operative data with cross-sectional follow-up on adolescents aged 10 to 21 years who underwent pulmonary valve replacement (n=254). We compared homograft conduits (n=84) with bioprosthetic pulmonary valves (n=170) in terms of freedom from valve dysfunction--right ventricular outflow tract obstruction greater than 50 mm Hg, or moderate or greater pulmonary regurgitation--and reintervention. Median follow-up duration was 4.4 years and was longer in the homograft cohort. Freedom from valvar dysfunction was 72%±4% at 5 years and 48%±8% at 10 years. Freedom from right ventricular outflow tract reintervention was 90%±3% at 5 years, 67%±5% at 10 years, and 47%±8% at 15 years. No differences existed for dysfunction or reintervention between the homograft and bioprosthetic valve cohorts. Shorter freedom from dysfunction was associated with younger age, smaller implanted valve Z-score, valve replacement after prior hom...Continue Reading

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