Peer-reviewed veterinary case report
Shetland Sheepdog puppy heart surgery fixes severe lung valve
By Mampaey, G et al.·Published in Journal of veterinary cardiology : the official journal of the European Society of Veterinary Cardiology·2023·Small Animal Department·View original on PubMed →
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Original publication title: Surgical correction of an infundibular pulmonic stenosis and ventricular septal defect in a Shetland Sheepdog.
- Species:
- dog
Plain-English summary
A four-month-old male Shetland Sheepdog was brought in because he was having trouble exercising and had a noticeable heart murmur. Tests showed he had a serious heart condition involving a narrowed area in the heart (infundibular pulmonic stenosis) and a hole between the heart's chambers (ventricular septal defect). After medical treatments didn't help, he underwent surgery to fix these issues, and for a while, it seemed successful. Unfortunately, he developed complications later, and during a follow-up procedure to address a new narrowing, he suffered a fatal heart rhythm problem.
People also search for: Shetland Sheepdog heart murmur · puppy exercise intolerance · heart surgery for dogs · ventricular septal defect treatment in dogs
Abstract
A four-month-old male Shetland Sheepdog presented with exercise intolerance. Physical examination revealed an IV/VI left cranial systolic heart murmur. Echocardiography showed a severe infundibular pulmonic stenosis and a concomitant restrictive ventricular septal defect. As clinical signs of congestive right-sided heart failure worsened and were refractory to medical treatment, surgical correction was advised. Via sternotomy, with cardiopulmonary bypass and cardioplegic cardiac arrest, ventricular septal defect closure and resection of the stenotic infundibular band were performed through right ventriculotomy, followed by patch enlargement. Postoperative recovery was uneventful and echocardiography showed complete resolution of the stenosis and successful closure of the ventricular septal defect. Follow-up echocardiography revealed restenosis after seven weeks and recurrence of right-sided heart failure three months postoperatively. Stenting of the restenosis was attempted via a hybrid procedure with sternotomy and direct transventricular approach. The dog developed fatal ventricular fibrillation during stent deployment. This is the first dog in which surgical right ventricular patch enlargement under cardiopulmonary bypass is reported for the treatment of a primary infundibular pulmonic stenosis.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/37573623/