A prognostic score for adult patients having open heart surgery was developed at French cardiac surgery centers.
Features of the French score:
(1) Component factors were selected by multivariate analysis.
(2) Factors shared with the Parsonnet system: age, ejection fraction, reoperation, valve added to coronary bypass procedure.
(3) Factors from Parsonnet scoring system not used: age, hypertension, left ventricular aneurysm, intra-aortic balloon pump, morbid obesity, mitral and aortic valve surgery.
(4) Variables not used due to variation between centers or difficulty in defining clearly: unstable angina, peripheral vascular disease, chronic pulmonary obstructive disease, congestive heart failure.
age in years
chronic renal failure
creatinine >= 200 µmol/L and not on dialysis
patient on dialysis
31 – 50%
saphenous vein graft only
tricuspid valve surgery
valve (mitral or aortic) and (coronary artery bypass graft) CABG
• The internal mammary artery was preferred over the saphenous vein for coronary artery bypass procedures, with the saphenous vein graft used in emergency or higher risk patients.
Type of Critical Situations
myocardial infarction < 48 hours prior to surgery
ventricular tachycardia or fibrillation
post-MI ventricular septal defect (VSD)
acute aortic dissection
French score =
= (points for risk factors) + (points for critical situations)
• Minimum score: 0
• Maximum score: > 50
after Figure 1, page 435
• Scores much higher than 6 would be expected to have a higher mortality rate than that shown.
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Purpose: To predict operative mortality in adults undergoing open heart surgery using the prognostic score developed in France.
Specialty: Cardiology, Surgery, general
Objective: risk factors, severity, prognosis, stage, complications