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Scoring systems for ICU and surgical patients:

Preoperative prediction of early mortality in redocoronary artery surgery 

Variables : Preoperative evaluation (help)	Values	Beta
Diabetes	Yes No
Vascular disease	Yes No
Lung disease	Yes No
Between MI	Yes No
Operative status	Elective Acute Emergency
Time period (first operation)	1993-1998 1987-1992
		"S" score = "S" score = Logit = -2.89 + Sum (values*beta) Probability of early mortality (6 months postoperative): Predicted death rate = 1/ (1 + e-Logit) e

Reference

Van Eck FM et al. Preoperative prediction of early mortality in redocoronary artery surgery. Eur J Cardiothorac Surg 2002;21:1031-6

 

Methods

541 patients undergoing a first coronary reoperation from January 1987 to December 1998 at the UMC St Radboud Nijmegen, The Netherlands
Only patients with an isolated myocardial revascularization at the primary operation were included in this study.

Variables (preoperative evaluation)

Diabetes: diet-controlled, oral therapy, or insulin dependent diabetes.

Vascular disease: peripheral, abdominal vascular pathology or operation.

Lung disease: chronic obstructive pulmonary disease/history of previous lung disease.

Between MI: history of MI between the first operation and the reoperation.

Operative status:

Elective: Stable cardiac function, usualy scheduled at least 1 day prior to the surgical procedure.

Urgent: Surgery is required within 24 h after admission.

Emergency: Evolving infarction, ischemia not responding to medical therapy, or cardiogenic shock.

Time Period (First operation)

1987-1992

1993-1998

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