Peer-reviewed veterinary case report
Repeat balloon treatment for dogs with lung valve narrowing
By Winter, R L et al.Ā·Published in Journal of veterinary cardiology : the official journal of the European Society of Veterinary CardiologyĀ·2021Ā·Department of Veterinary Clinical Sciences, United StatesĀ·View original on PubMed ā
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Original publication title: Repeat balloon valvuloplasty for dogs with recurrent or persistent pulmonary stenosis.
- Species:
- dog
Plain-English summary
A group of 23 dogs with a heart condition called pulmonary stenosis (PS) underwent repeat balloon valvuloplasty (BV) to relieve ongoing symptoms. Most dogs showed significant improvement in heart function after the procedure, with reduced pressure and flow measurements indicating better blood flow. While one dog sadly passed away during the procedure, the rest tolerated the treatment well without serious side effects. Overall, repeat BV was found to be effective for most dogs suffering from this condition.
People also search for: dog pulmonary stenosis treatment Ā· balloon valvuloplasty for dogs Ā· heart problems in dogs Ā· repeat heart surgery for dogs
Abstract
INTRODUCTION/OBJECTIVES: Pulmonary stenosis (PS) is a common congenital defect in the dog. Severe valvar PS can be treated with balloon valvuloplasty (BV) to reduce obstruction severity and improve clinical signs. Repeat BV is often unnecessary, as restenosis is uncommon. Repeated pulmonary BV in people is generally successful and safe, but outcomes in dogs with recurrent or persistent stenosis have not been reported. The objectives of this study were to retrospectively evaluate outcomes of repeat BV in dogs. ANIMALS, MATERIALS, AND METHODS: Medical records and stored echocardiographic images were reviewed from dogs that received repeat BV for pulmonary valvar restenosis or persistent stenosis. Echocardiographic variables included maximum systolic ejection velocity (PVmax), velocity-derived maximal pressure gradient (PGmax) and velocity time integral (VTI) across the pulmonary valve, and ratios of pulmonic to aortic maximum velocity (PVmax/AVmax) and VTI (VTI/VTI). RESULTS: Twenty-three dogs were included; one underwent three BV procedures. The median time between BV procedures was 18.3 months (interquartile range, 6.3-43.6). One dog died during repeat BV, but no others experienced adverse effects. Reductions in PVmax, PGmax, and VTIafter initial and repeat BV were 1.85 m/s, 76.2 mmHg, and 44.7 cm and 1.33 m/s, 55.6 mmHg, and 30.2 cm, respectively (all p < 0.01). Differences between pre-BV and post-BV PVmax, PGmax, VTI, PVmax/AVmax, and VTI/VTIwere not different comparing initial to repeat BV (all p > 0.10). CONCLUSIONS: Repeat BV for recurrent or persistent PS is well tolerated and effective in a majority of dogs.
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Search related cases āOriginal publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/33548736/