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Iatrogenic postoperative left ventricular outflow tract obstruction.

Abstract
A 56-year-old female, who underwent aortocoronary bypass graft for occlusion of anterior descending artery is reported, who postoperatively developed a harsh systolic murmur, mitral regurgitation, and intraventricular systolic pressure gradient suggestive of hypertrophic subaortic stenosis. The above findings were due to the administration of dobutamine hydrochloride for hypotension in association with afterload reduction (intra-aortic balloon pumping) and disappeared almost immediately after left ventriculography (volume load).
AuthorsF K Nakhjavan, S Yazdanfar, V Bhasin, H Goldberg
JournalClinical cardiology (Clin Cardiol) Vol. 6 Issue 5 Pg. 229-34 (May 1983) ISSN: 0160-9289 [Print] United States
PMID6602023 (Publication Type: Case Reports, Journal Article)
Topics
  • Aortic Stenosis, Subvalvular (etiology)
  • Blood Pressure
  • Cardiomyopathy, Hypertrophic (etiology)
  • Coronary Artery Bypass
  • Coronary Disease (surgery)
  • Echocardiography
  • Electrocardiography
  • Female
  • Heart Ventricles (diagnostic imaging)
  • Humans
  • Iatrogenic Disease
  • Middle Aged
  • Mitral Valve Insufficiency (etiology)
  • Postoperative Complications (etiology)
  • Radiography

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