ATS
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text (PDF)
Right arrow References
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to Personal Folders
Right arrow Download to citation manager
Right arrow Author home page(s):
Christo I. Tchervenkov
James F. Symes
Richard J. Novick
Anthony R.C. Dobell
Jean E. Morin
Right arrow Permission Requests
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Tchervenkov, C. I.
Right arrow Articles by Morin, J. E.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Tchervenkov, C. I.
Right arrow Articles by Morin, J. E.

Ann Thorac Surg 1985;39:340-345
© 1985 The Society of Thoracic Surgeons

Articles

Improvement in Resting Ventricular Performance Following Coronary Bypass Surgery

Christo I. Tchervenkov, M.D., James F. Symes, M.D., Allan D. Sniderman, M.D., Robert Lisbona, M.D., Vilma A. Derbekyan, M.D., Richard J. Novick, M.D., J. Earl Wynands, M.D., Anthony R.C. Dobell, M.D., Jean E. Morin, M.D.*

Cardiovascular Research Unit, Royal Victoria Hospital, McGill University, Montreal, PQ, Canada

Accepted for publication July 27, 1984.

* Address reprint requests to Dr. Morin, Division of Cardiovascular Thoracic Surgery, Room S8–30, Royal Victoria Hospital, 687 Pine Ave W, Montreal, PQ, Canada H3A 1A1

To assess the changes in resting left ventricular (LV) function following coronary bypass surgery, technetium 99m–labeled multiple equilibrated blood pool gated scans were performed in 53 consecutive patients at rest, before operation, and at 24 hours and 1 week after operation. Left ventricular ejection fraction (LVEF) and end-diastolic volume (EDV) were measured.

The LVEF increased significantly from a preoperative value of 49 ± 2% to 56 ± 2% at 24 hours after operation (p < 0.05) and 56 ± 2% at 1 week following operation (p < 0.05 compared with the preoperative value). The EDV also exhibited significant changes, decreasing from a preoperative value of 148 ± 8 ml to 91 ± 11 ml at 24 hours (p < 0.001) and 114 ± 9 ml at 1 week (p < 0.01 compared with the preoperative value). When the patients were divided into two groups according to the preoperative LVEF (Group 1, LVEF of greater than or equal to 50%; Group 2, LVEF of less than 50%), the observed changes were similar.

This study demonstrates significant improvement in resting LV function 24 hours following coronary bypass surgery. This improvement persists at 1 week and is not related to the degree of preoperative impairment. We conclude that the combination of successful revascularization and optimal myocardial protection can result in significant improvement of LV function at rest.






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
ANN THORAC SURG ASIAN CARDIOVASC THORAC ANN EUR J CARDIOTHORAC SURG
J THORAC CARDIOVASC SURG ICVTS ALL CTSNet JOURNALS
Copyright © 1985 by The Society of Thoracic Surgeons.