Copyright © 2003 by the European Society of Cardiology.
Regular Articles
Use of non-invasive cardiac investigations to predict clinical endpoints after coronary bypass graft surgery in coronary artery disease patients: results from the prognosis and evaluation of risk in the coronary operated patient (PERISCOP) study
a Service de réadaptation cardiaque, Hôpital Broussais, 96 rue Didot-75014, Paris, France
b Département d'informatique hospitalière, HEGP, 20-40 Rue Leblanc, Paris, France
c Clinique Médicale cardio-pneumologique, 63830 Durtol, France
d Service de cardiologie, Hôpital cardiologique du Haut Lévèque, Avenue de Magellan 33604 Pessac, France
e Service de chirurgie cardiovasculaire, Hôpital Foch, 40 Rue Worth, 92151 Suresnes, France
f Département de Rééducation, Hôpital Brabois, Avenue du Morvan, 54500 Vandoeuvre lès Nancy, France
g Centre Bois-Gibert, BP 37510 Ballan-Miré, France
h Cabinet Médical, 1 Rue des Belges, 69006 Lyon, France
* Corresponding author. Tel.: +33-1-43-95-94-50; fax: +33-1-43-95-94-58
E-mail address: philippe.sellier{at}brs.ap-hop-paris.fr
Received 20 November 2002; revised 14 January 2003; accepted 14 January 2003
Aims Little is known about which patients who have undergone coronary bypass surgery are at risk of future clinical cardiovascular events and may benefit from further medical treatment. We sought to determine if routine non-invasive cardiac investigations performed early after surgery were able to stratify the risk of cardiovascular events in this population.
Methods Two thousand and sixty-five consecutive patients were enrolled in a prospective multicenter study (PERISCOP). Exercise testing, echocardiography, and 24-h ambulatory ECG monitoring were performed at day 20±10 after coronary bypass surgery. Follow-up was performed 1 year after coronary bypass surgery. Causes of all hospitalisation and death occurring within 1 year were documented and classified by an End-point Committee. The principal endpoint was the combination of all-cause deaths and cardiovascular events requiring hospitalisation (myocardial infarction, unstable or severe angina, stroke, congestive heart failure).
Results The 1-year frequency of first events was 155 (8%). In multivariate analysis, exercise duration <420s (
; 95% CI: 1.13–2.49), exercise induced ST segment depression >1mm (
; 95% CI: 1.18–3.05), and left ventricular (LV) dysfunction (wall motion index <1.15) (
; 95% CI: 1.10–3.51) were independent predictors of cardiovascular events and deaths. Ambulatory ECG monitoring had no predictive value.
Conclusion Exercise testing and echocardiography performed early after coronary bypass surgery are able to identify high-risk patients who may benefit from intensive secondary prevention.