Surgical treatment of severe pulmonic stenosis under cardiopulmonary bypass in small dogs.

Abstract

OBJECTIVES:

The aim of this study was to report the long-term outcome of the surgical palliation of pulmonic stenosis in dogs.

METHODS:

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.

RESULTS:

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.

CLINICAL SIGNIFICANCE:

Open valvotomy, pulmonary valve commissurotomy and biomembrane patch grafting were effective in reducing obstruction in severe pulmonic stenosis in dogs.

• Authors: M Fujiwara, K Harada, T Mizuno, M Nishida, T Mizukoshi, M Mizuno, M Uechi
• Journal: The Journal of small animal practice (J Small Anim Pract) Vol. 53 Issue 2 Pg. 89-94 (Feb 2012) ISSN: 1748-5827 [Electronic] England
• PMID: 22225461 (Publication Type: Journal Article)
• Copyright: © 2012 British Small Animal Veterinary Association.

Topics

• Animals
• Cardiopulmonary Bypass (veterinary)
• Dog Diseases (pathology, surgery)
• Dogs
• Female
• Male
• Postoperative Complications (veterinary)
• Pulmonary Valve Stenosis (pathology, surgery, veterinary)
• Severity of Illness Index
• Treatment Outcome