Use of a modified open patch-graft technique and valvulectomy for correction of severe pulmonic stenosis in dogs: eight consecutive cases.
A modified open patch-graft technique was used to correct congenital pulmonic stenosis in 8 dogs. Pulmonary valve dysplasia was moderate to severe in all cases, based upon clinical and echocardiographic criteria, and 3 dogs were in right-sided congestive heart failure at the time of surgery. Seven of the 8 dogs survived the surgery. One surviving dog displayed cerebral cortical dysfunction, the remaining 6 had no detectable neurological sequelae. Right ventricular failure was alleviated in all 7 surviving dogs, but right ventricular dilatation persisted post-operatively. Pulmonary valvulectomy and open patch-grafting provides an effective means of alleviating signs of congestive heart failure caused by pulmonary valve dysplasia, even in the presence of severe infundibular hypertrophy and dynamic outflow obstruction.
Hunt
G B
GB
Department of Veterinary Anatomy, University of Sydney, New South Wales.
Pearson
M R
MR
Bellenger
C R
CR
Malik
R
R
D000818:Animals; D001145:Arrhythmias, Cardiac / Q000209:etiology / Q000662:veterinary; D016887:Cardiopulmonary Resuscitation / Q000662:veterinary; D004283:Dog Diseases / Q000209:etiology / Q000601:surgery*; D004285:Dogs; D005260:Female; D005500:Follow-Up Studies; D006333:Heart Failure / Q000209:etiology / Q000601:surgery / Q000662:veterinary*; D006336:Heart Massage / Q000662:veterinary; D007431:Intraoperative Complications / Q000662:veterinary; D008297:Male; D010496:Pericardium / Q000637:transplantation*; D011183:Postoperative Complications / Q000662:veterinary; D011654:Pulmonary Edema / Q000209:etiology / Q000662:veterinary; D011664:Pulmonary Valve / Q000601:surgery*; D011666:Pulmonary Valve Stenosis / Q000150:complications / Q000601:surgery / Q000662:veterinary*; D012640:Seizures / Q000209:etiology / Q000662:veterinary