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2010 Annual Meeting Abstracts

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Longevity of Biological Aortic Valves Within Dacron Aortic Conduits
*Juan D Montoya1,2
1Saint Mary's Hospital, Waterbury, CT;2Yale New Haven Hospital, New Haven, CT

Objective: To evaluate the longevity of biological valves used in aortic valved conduits for aortic root replacements.
Design: Retrospective case series
Setting: University hospital
We reviewed the data of 38 patients undergoing biological aortic root replacement between 1999 and 2009.
Biological patients included 34 M and 4 F and ranged in age from 53 to 88 years (mean 72 years). Biological valves included Edwards porcine and Edwards pericardial prostheses. Clinical and echocardiographic follow up was performed at a mean of 2.76 years (range 1 to 10). Follow up was 100% complete.
Interventions: Aortic root replacement with a biological aortic valved conduit.
Main Outcome Measures: Echocardiographic evidence of aortic insufficiency or stenosis.
36 of 38 (94.7%) biological patients survived the operation and hospital stay. Of the patients that survived the operation, the actuarial survival was 100%, 100%, and 94.4% at 1, 5 and 10 years. There were no aortic valve reoperations. There was 1 stroke during the duration of follow up. Echocardiography revealed no aortic stenosis or insufficiency (beyond the initial valvular gradient at implantation or beyond trace AI) in any patient.
This data indicates no apparent detriment in the natural history of biological prostheses when incorporated into an aortic root composite graft. We suggest that biological aortic valved conduits continue to be utilized when clinical circumstances mitigate against a mechanical prosthesis.

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