HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Personal Folders Download to citation manager Permission Requests Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Sreeram, N. Articles by Quaegebeur, J. M. Search for Related Content PubMed PubMed Citation Articles by Sreeram, N. Articles by Quaegebeur, J. M.

The Annals of Thoracic Surgery, Vol 50, 579-585, Copyright © 1990 by The Society of Thoracic Surgeons

ARTICLES

Subaortic obstruction: intraoperative echocardiography as an adjunct to operation

N Sreeram, GR Sutherland, JJ Bogers, O Stumper, J Hess, E Bos and JM Quaegebeur
Department of Cardiology, Dijkzigt University Hospital, Rotterdam, The Netherlands.

Fourteen patients undergoing operation for subaortic obstruction (membranous obstruction in 11 patients, tunnel obstruction in 2 patients, obstruction due to reduplicated mitral valve tissue in 1 patient) were evaluated by intraoperative epicardial echocardiography. In all 9 patients with "discrete" obstruction who underwent prebypass epicardial echocardiography, the septal and lateral attachments of the lesion were correctly demonstrated. The precise extent of tunnel stenosis was seen in both patients. The lateral attachment of the membrane in 4 patients and multiple extensions in another 2 were identified by the epicardial study (having been missed on precordial echocardiography). The discrete membrane was enucleated in 10 of the 11 patients and was partially resected in 1. One tunnel obstruction was completely relieved; the other was partially relieved. Reduplicated mitral valve tissue in the remaining patient was completely resected. Epicardial imaging after bypass showed remnants of the membrane in 2 patients. Intraoperative Doppler echocardiography and color flow imaging confirmed the absence of clinically significant residual gradients (less than 20 mm Hg) in all but 1 patient with tunnel obstruction. Epicardial imaging provided excellent morphological information about obstructive lesions of the left ventricular outflow tract and enabled immediate assessment of surgical repair.

This article has been cited by other articles:

				S. Atalay, S. Turkay, H. Gumus, A. Imamoglu, and H. Ercan Tutar Echocardiographic, Morphologic, and Geometric Variations of the Left Ventricular Outflow Tract: Possible Role in the Pathogenesis of Discrete Subaortic Stenosis Angiology, March 1, 2000; 51(3): 213 - 221. [Abstract] [PDF]

				S. Shankar, N. Sreeram, W. J. Brawn, and B. Sethia Intraoperative Ultrasonographic Troubleshooting After the Arterial Switch Operation Ann. Thorac. Surg., February 1, 1997; 63(2): 445 - 448. [Abstract] [Full Text]

				N. Sreeram, R. Jagtap, E. D. Silove, W. J. Brawn, and B. Sethia Intraoperative Epicardial Echocardiography in Assessing Pulmonary Artery Banding Procedures Ann. Thorac. Surg., December 1, 1995; 60(6): 1778 - 1782. [Abstract] [Full Text]