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European Heart Journal 1998 19(2):332-341; doi:10.1053/euhj.1997.0734
Copyright © 1998 by the European Society of Cardiology.
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Echocardiography and fatty acid single photon emission tomography in predicting reversibility of regional left ventricular dysfunction after coronary angioplasty

T. Haquef1, FurukawaT , S. Yoshida, K. Maeda, MatsuoS , M. Takahashi and M. Kinoshita

The First Department of Internal Medicine, Shiga University of Medical Science, Seta, Tsukinowa-cho, Otsu, Shiga, Japan

accepted July 10, 1997

Aims

The present study was performed to evaluate whether echocardiographic assessment of end-diastolic wall thickness and myocardial fatty acid metabolic single-photon emission tomographic imaging with123I-beta-methyl-iodophenyl pentadecanoic acid could be used to predict the reversibility of dysfunctional left ventricular segments after coronary artery revascularization.

Methods and results

Twenty-eight patients with wall motion abnormalities related to stenosed coronary arteries underwent resting two-dimensional echocardiography and123I-beta-methyl-iodophenyl pentadecanoic acid single photon emission tomography before coronary angioplasty. A dysfunctional segment was considered viable by the presence of either preserved wall thickness (≥75% of the thickness of a normal segment) or preserved fatty acid uptake (≥50% of that in normal region). Echocardiography was repeated after successful angioplasty. Functional recovery was observed in 32 (74%) of 43 hypokinetic and nine (100%) of nine akinetic segments with preserved wall thickness and in 11 (79%) of 14 thinned akinetic segments with preserved fatty acid uptake. In contrast, no functional recovery was observed in any of the 13 thinned segments with <50% fatty acid uptake (eight akinetic and five dyskinetic). Using combined evaluation of both methods, positive and negative predictive values for post-revascularization functional outcome were 79% and 100%, respectively, in all dysfunctional segments; and 87% and 100%, respectively, in akinetic/dyskinetic segments.

Conclusions

The present study showed that echocardiographic findings of preserved wall thickness and single-photon emission tomography evaluated preserved fatty acid uptake in thinned segments are reliable predictors of post-revascularization functional recovery and the concordant absence of both accurately predict negative outcome.

Key Words: Echocardiography • end-diastolic wall thickness • SPECT • BMIPP uptake • revascularization • reversibility

f1 Correspondence: Tuhin Haque. The First Department of Internal Medicine, Shiga University of Medical Science, Seta, Tsukinowa-cho, Otsu, Shiga, Japan 520-21.


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This article has been cited by other articles:


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 Eur J Heart FailHome page
E. Miche, A. Radzewitz, G. Notohamiprodjo, D. Baller, A. Kloppe, S. Eckert, and U. Gleichmann
[123I]-phenylpentadecanoic acid uptake in patients with dilated cardiomyopathy
Eur J Heart Fail, August 1, 2002; 4(4): 431 - 438.
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