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European Journal of Cardio-Thoracic Surgery, Vol 6, 665-673, Copyright © 1992 by European Association for Cardio-thoracic Surgery

ARTICLES

Intraoperative transesophageal echocardiography for the evaluation of mitral, aortic and tricuspid valve repair. A tool to optimize surgical outcome

R De Simone, R Lange, W Saggau, E Gams, A Tanzeem and S Hagl
Herzchirurgie, Universitat Heidelberg, FRG.

The present study reviews the clinical applicability and usefulness of intraoperative transesophageal echocardiography (TEE) during valve repair. Intraoperative TEE was performed in 48 consecutive patients, who were divided into three groups: 1. mitral valve repair (MVR), 2. aortic valve repair (AVR), 3. tricuspid valve repair (TVR). Residual valve regurgitation was assessed by color Doppler echocardiography on a scale from 0 to 4. The ratios of the jet area (JA) to the left- and right-atrial areas (JA/LAA and JA/RAA) were analyzed before and after cardiopulmonary bypass (CPB). In group 1, 14 patients were scheduled for MVR, of which 4 patients underwent valve replacement and 10 MVR. Post-repair TEE studies showed a significant decrease of mitral regurgitation. In 2 of the 10 patients, TEE demonstrated severe residual regurgitation requiring valve replacement during the same thoracotomy. In group 2, 11 patients underwent aortic commissurotomy. Post-repair TEE showed an increase in the systolic opening diameter and opening area of the aortic valve. One patient underwent valve substitution because of severe aortic regurgitation. In group 3, 23 patients were scheduled for TVR. In 3 of them TEE showed no significant regurgitation thus rendering tricuspid valve surgery unnecessary. Twenty patients underwent TVR of whom two showed unacceptable post- repair regurgitation requiring further surgery. Eighteen patients showed a significant reduction of valve regurgitation after TVR, and a further reduction was achieved by adjusting the tricuspid annuloplasty under TEE guidance.

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