PMID: 9194535Jun 1, 1997Paper

Predictive value of left ventricular response to exercise in patients with dilated cardiomyopathy--assessment by radionuclide ventriculography

Angiology
T SuzukiI Kobayashi

Abstract

The objective of this study was to determine noninvasively the likelihood of recovery of the left ventricular ejection fraction (LVEF) in patients with dilated cardiomyopathy (DCM) verified by radionuclide ventriculography. Twenty patients with DCM were classified into two groups according to the LVEF by M-mode echocardiographic findings two years after ventriculographic examination. The LVEF recovered to > or = 50% in 10 patients (Group A), while it was sustained at < 50% in 10 patients (Group B). The clinical features of each group were compared, based on results of physical examination, radionuclide ventriculography, and other diagnostic tests performed on their referral to hospital. Only the systolic blood pressure differed significantly between the two groups, being slightly, but significantly, increased in Group A over that in Group B (P < 0.05). LVEF at rest by radionuclide did not differ (Group A: 31.5 +/- 10.3% vs Group B: 26.5 +/- 9.4%). Peak exercise EF-EF at rest (peak delta EF) in Group A was apparently increased (3.4 +/- 4.0%), while that in Group B was decreased (-4.4 +/- 5.2%). The positive peak delta EF had a highly predictive value of 90% for patients with DCM whose LVEF will recover to more than 50%. The reco...Continue Reading

References

May 1, 1990·American Heart Journal·T L KellyR Shabetai
Sep 1, 1989·Journal of the American College of Cardiology·A S BortoneP Rizzon
Apr 1, 1986·American Heart Journal·B J BakerJ A Franciosa
Apr 1, 1984·Clinical Cardiology·P C KirlinB Pitt
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