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Surgical treatment of severe pulmonic stenosis under cardiopulmonary bypass in small dogs
Author(s) -
Fujiwara M.,
Harada K.,
Mizuno T.,
Nishida M.,
Mizukoshi T.,
Mizuno M.,
Uechi M.
Publication year - 2012
Publication title -
journal of small animal practice
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.7
H-Index - 67
eISSN - 1748-5827
pISSN - 0022-4510
DOI - 10.1111/j.1748-5827.2011.01163.x
Subject(s) - medicine , cardiopulmonary bypass , pulmonic stenosis , cardiology , stenosis , surgery
O bjectives : The aim of this study was to report the long‐term outcome of the surgical palliation of pulmonic stenosis in dogs. M ethods : The subjects comprised three female and six male dogs, mean (±sd) age: 23 (±25) months, mean (±sd) weight: 3·4 (±2·1) kg, diagnosed with severe pulmonic stenosis and right ventricular hypertrophy, with an average preoperative pressure gradient of 153 (±43) mmHg on echocardiography. R esults : The pressure overload with severe pulmonic stenosis was reduced by valvotomy, i.e., open pulmonary valve commissurotomy, with/without biomembrane patch grafting, under cardiopulmonary bypass. The postoperative pressure gradient at 1 to 7 days was significantly decreased to 65 (±39) mmHg (P<0·05). The reduced pressure gradient was maintained at 58 (±38) mmHg at final follow‐up. C linical S ignificance : Open valvotomy, pulmonary valve commissurotomy and biomembrane patch grafting were effective in reducing obstruction in severe pulmonic stenosis in dogs.