Early deterioration followed by improvement in contractility during dobutamine stress echocardiography: An unusual response

E. M. Juracan, W. K. Freeman, P. A. Pellikka

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

In 2 patients with severe proximal coronary artery stenosis and normal wall motion in this territory, we observed marked wall motion abnormalities with low and intermediate doses of dobutamine, followed by marked improvement with continued dobutamine infusion. This unusual response suggests ischemic preconditioning and recruitment of coronary collaterals and would be recognized only by monitoring of images obtained at all stages of dobutamine infusion.

Original languageEnglish (US)
Pages (from-to)1110-1113
Number of pages4
JournalJournal of the American Society of Echocardiography
Volume12
Issue number12
DOIs
StatePublished - Jan 1 1999

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine

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