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The Annals of Thoracic Surgery, Vol 43, 527-529, Copyright © 1987 by The Society of Thoracic Surgeons
S Stewart, C Alexson and J Manning
Thirty-five patients underwent repair of a partial atrioventricular canal
defect and have been followed for a mean of 8 years. Seventeen patients had
either moderate or severe mitral incompetence prior to operation. The
mitral valve was treated as a bileaflet structure. The cleft in its
anterior leaflet was closed in each patient in whom the valve was
incompetent. The septal defect was closed with pericardium, and the
coronary sinus was left on the right atrium. Two patients required
reoperation, 1 to close a recurrent septal defect and 1 to replace a mitral
valve that had been competent for the first several years after the initial
repair. All 33 survivors remain in New York Heart Association Functional
Class I. Nineteen patients have no mitral incompetence, and the remaining
14 have only mild incompetence. These data demonstrate that excellent late
results from repair of partial atrioventricular canal are possible when the
mitral valve is managed as a bileaflet structure.
ARTICLES
Partial atrioventricular canal defect: the early and late results of operation
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