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Ann Thorac Surg 1986;42:264-268
© 1986 The Society of Thoracic Surgeons

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Articles

Surgical Management of Patients with Pulmonary Valve Dysplasia

Department of Cardiac and Thoracic Surgery and the Division of Pediatric Cardiology, Vanderbilt University Medical Center, Nashville, TN

^* Address reprint requests to Dr. Merrill, 1211 21st Ave S, Suite 338 Medical Arts Bldg, Nashville, TN 37212

Pulmonary valve dysplasia is a distinct pathological entity consisting of markedly thickened, deformed, and largely immobile pulmonary valve leaflets. The clinical features and surgical management of 21 consecutive patients operated upon between 1975 and 1985 were reviewed. Mean age at operation was 26.7 months (range: 1 month to 9.5 years).

Initial surgical intervention in 3 patients consisted of closed valvotomy or systemic pulmonary artery shunt. One of these patients subsequently had a partial pulmonary valvectomy; the other 2 had total valvectomy and pulmonary annuloplasty. Two patients had partial valvectomy as a primary procedure, and 1 has subsequently required total valvectomy and annuloplasty. Sixteen patients initially had total pulmonary valvectomy, 4 with a simultaneous transannular outflow tract patch. One patient subsequently required a transannular outflow tract patch. Therefore, definitive repair consisted of partial valvectomy in 2 patients, total valvectomy in 19, and a transannular outflow tract patch in 9 patients with a hypoplastic pulmonary annulus.

There were no operative deaths, and all patients are asymptomatic at a mean follow-up of 37.9 months. Five patients who underwent total valvectomy were catheterized postoperatively. The mean residual gradient was 25 mm Hg.

Pulmonary valvectomy appears to provide both effective relief of stenosis and long-term asymptomatic status in patients with pulmonary valve dysplasia. Total excision of all valve leaflets is recommended. Careful consideration should be given to a simultaneous transannular outflow tract patch if the annulus is hypoplastic.