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Pulmonary artery dissection following balloon valvuloplasty in a dog with pulmonic stenosis
- Grint, K.A., Kellihan, H.B.
- Journal of veterinary cardiology 2017 v.19 no.2 pp. 182-189
- Bull Terrier, dogs, echocardiography, heart, males, patients, pulmonary artery, therapeutics
- A 3-month-old, 9.9 kg, male pit bull cross was referred for evaluation of collapse. A left basilar systolic heart murmur graded V/VI and a grade IV/VI right basilar systolic heart murmur were ausculted. Echocardiography showed severe pulmonic stenosis characterized by annular hypoplasia, leaflet thickening, and leaflet fusion. After 1 month of atenolol therapy, a pulmonic valve balloon valvuloplasty procedure was performed, and the intra-operative right ventricular pressure was reduced by 43%. Echocardiography, performed the following day, showed apparent rupture of a pulmonary valve leaflet and a membranous structure within the pulmonary artery consistent with a dissecting membrane. Short-term follow-up has shown no apparent progression of the pulmonary artery dissection and the patient remains free of clinical signs.