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Peer-reviewed veterinary case report

Surgery under heart-lung machine helps small dogs

By Fujiwara, M et al.·Published in The Journal of small animal practice·2012·Department of Veterinary Internal Medicine, Japan·View original on PubMed

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Original publication title: Surgical treatment of severe pulmonic stenosis under cardiopulmonary bypass in small dogs.

Species:
dog

Plain-English summary

A group of small dogs with severe pulmonic stenosis (a heart condition that restricts blood flow) underwent surgery to relieve the pressure on their hearts. The dogs, aged around 2 years, had a significant pressure gradient in their hearts before surgery. After the procedure, which involved opening the pulmonary valve, the pressure was greatly reduced and remained lower during follow-up visits. This surgical approach proved effective in improving the dogs' heart function and overall health.

People also search for: dog heart problems surgery · small dog pulmonic stenosis treatment · heart surgery for 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 (&#xb1;sd) age: 23 (&#xb1;25) months, mean (&#xb1;sd) weight: 3&#xb7;4 (&#xb1;2&#xb7;1) kg, diagnosed with severe pulmonic stenosis and right ventricular hypertrophy, with an average preoperative pressure gradient of 153 (&#xb1;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 (&#xb1;39) mmHg (P<0&#xb7;05). The reduced pressure gradient was maintained at 58 (&#xb1;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.

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Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/22225461/