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European Heart Journal 1988 9(11):1162-1166;
Copyright © 1988 by the European Society of Cardiology.
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© 1988 The European Society of Cardiology

Detection of left coronary artery stenosis by transoesophageal echocardiography

M. A. TAAMS, E. J. GUSSENHOVEN, J. H. CORNEL, S. H. K. THE, J. R. T. C. ROELANDT, C. T. LANCÉE and M. V. D. BRAND

Thoraxcenter, Academic Hospital Rotterdam-Dijkzigt, Erasmus University Rotterdam, and the Interuniversity Cardiology Institute of the Netherlands The Netherlands

Received 18 September 1986; revised 6 May 1988; .

Address for Correspondence:Elma J. Gussenhoven, M.D., Thoraxcenter Ee2302. P O Box 1738, 3000 DR Rotterdam, The Netherlands.

Abstract

The ability of transoesophageal echocardiography to visualize the left coronary artery was retrospectively analysed in 60 consecutive patients without clinical evidence of coronary artery disease. The left main coronary artery was visualized in 56 patients, the proximal circumflex in 34 patients and the proximal anterior descending artery in nine patients. Patency of these arteries was established in all these patients. Subsequently, a prospective study was undertaken in 23 patients with angiographically proven left coronary artery disease. Both the left main coronary artery and the circumflex artery were adequately visualized with transoesophageal echocardiography in all 23 patients, whereas the anterior descending artery was identified inthree patients. The extent of stenosis in the left main coronary artery and the circumflex arterywas correctly diagnosed in 18 patients. In five patients the degree of stenosis was overestimated. These findings indicate the potential of transoesophageal echocardiography to detect or exclude stenosis of both the left main coronary artery and circumflex artery.

Key Words: Transoesophageal echocardiography, • left coronary artery.


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