Peer-reviewed veterinary case report
Surgery fixed severe pulmonary artery narrowing in young Pomeranian
By Soda, Aiko et al.·Published in The Journal of veterinary medical science·2009·Department of Veterinary Surgery, Japan·View original on PubMed →
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Original publication title: Successful surgical correction of supravalvular pulmonary stenosis under beating heart using a cardiopulmonary bypass system in a dog.
- Species:
- dog
Plain-English summary
A 1-year-and-8-month-old male Pomeranian was brought in for severe heart issues, including a noticeable heart murmur and fainting spells during excitement. The dog was diagnosed with supravalvular pulmonary stenosis, a condition where a narrowing in the heart's outflow tract restricts blood flow. Surgeons successfully removed the stricture while the heart was still beating, using a special bypass system. After the surgery, the dog's heart function improved significantly, and six months later, he showed no signs of the condition returning and was doing well without any fainting episodes.
People also search for: dog heart murmur treatment · Pomeranian fainting spells · pulmonary stenosis surgery in dogs
Abstract
A male Pomeranian dog aged 1 year and 8 months was presented for evaluation of severe systolic ejection, cardiac murmur and syncope on excitation. Supravalvular pulmonary stenosis was diagnosed. An echocardiogram showed a supravalvular membranous stricture and a severely increased pulmonary arterial velocity in the stricture (6.49 m/s, pressure gradient of 169 mmHg). The supravalvular stricture was surgically removed by pulmonary arteriotomy with the heart beating using a cardiopulmonary bypass system. The postoperative pulmonary arterial velocity at the narrow area decreased to 3.80 m/s, and the pressure gradient decreased to 57.7 mmHg. Six months after the operation, there were no signs of restenosis, and the dog was in good condition without syncope. Surgical correction of pulmonary stenosis with the heart beating using a cardiopulmonary bypass system is useful because of the improvement it brings in safety and reliability.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/19262033/