Successful balloon angioplasty of pulmonary artery stenosis in two cats and associated complications

Journal of Veterinary Cardiology : the Official Journal of the European Society of Veterinary Cardiology
Donald P SchropeKristin A Jacob

Abstract

Two cats (2.5 months and 8 months old) were each evaluated due to a loud systolic murmur, and each was diagnosed with severe pulmonary artery stenosis at the bifurcation of the main pulmonary artery. Echocardiograms confirmed significant right atrial dilation and right ventricular dilation and/or hypertrophy that was progressive in one cat. Atenolol was initiated and the cats were referred for interventional therapy. Balloon angioplasty was performed via the jugular vein. In case 1, the pressure gradient across the stenosis was reduced from 169.7 mmHg to 23.6 mmHg and 52.4 mmHg across the left and right branch pulmonary arteries, respectively. In case 2, the stenotic echocardiographic gradient was reduced from 64 mmHg to 38.0 mmHg and 35.3 mmHg across the left branch and right-branched pulmonary arteries respectively. Both patients developed moderate to severe dynamic right ventricular outflow tract obstruction post angioplasty. Case 2 developed hypotension, desaturation, and ventricular arrhythmias intra-operatively. Case 1 was discharged but appeared to develop acute lung perfusion injury approximately 36 h after procedure that was manifested by radiographic pulmonary congestion and pulmonary infiltrate of the left lung field...Continue Reading

References

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Apr 1, 1996·Circulation·J KreutzerJ E Lock
Jan 11, 2003·The American Journal of Cardiology·Lisa J BergersenJames E Lock
Nov 21, 2007·Journal of Veterinary Cardiology : the Official Journal of the European Society of Veterinary Cardiology·Donald P Schrope, William J Kelch
Jul 22, 2008·European Journal of Cardio-thoracic Surgery : Official Journal of the European Association for Cardio-thoracic Surgery·Tsuyoshi ShojiToru Bando
Dec 2, 2009·Journal of the Chinese Medical Association : JCMA·Hao-I ChengChung-Chang Laura Meng
Aug 13, 2013·Journal of Veterinary Cardiology : the Official Journal of the European Society of Veterinary Cardiology·Heidi McDevittDaniel Gruenstein
Feb 4, 2014·Journal of Cardiothoracic and Vascular Anesthesia·Saeed YacoubyEmad Mossad

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