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Cutting balloon and high-pressure balloon dilation for palliative treatment of congenital double-chambered right ventricle and primary infundibular stenosis in a Golden retriever dog

Author:
Schober, Karsten E., Rhinehart, Jaylyn, Kohnken, Rebecca, Bonagura, John D.
Source:
Journal of veterinary cardiology 2017 v.19 no.6 pp. 538-546
ISSN:
1760-2734
Subject:
Golden Retriever, cutting, dogs, exercise, heart failure, surgery, syncope
Abstract:
Combined cutting balloon and high-pressure balloon dilation was performed in a dog with a double-chambered right ventricle and severe infundibular stenosis of the right ventricular outflow tract. The peak systolic pressure gradient across the stenosis decreased by 65% after dilation (from 187 mmHg before to 66 mmHg after) affirming the intervention as successful. However, early re-stenosis occurred within 3 months leading to exercise intolerance, exercise-induced syncope, and right-sided congestive heart failure. Cutting balloon followed by high-pressure balloon dilation provided temporary but not long-term relief of right ventricular obstruction in this dog.
Agid:
5849174