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Ressources et utilitaires

Scoring systems for ICU and surgical patients:

ONTARIO Score 

Sex	Age	Urgency of surgery (Help)
Male Female	< 65 65 to 74 > 74	Elective Urgent Emergency
Type of surgery	Ejection fraction	Repeat operation
CABG only Single Valve Complex	EF > 50% 35 to 50 % 20 to 34 % EF < 20%	No Yes

ONTARIO =

Score	Hospital Mortality	ICU lenght of stay (mean-days)	PostOp lenght of stay (mean-days)
0	0.25 %	2.27	8.04
1	0.79 %	2.39	8.43
2	1.30 %	2.81	9.25
3	2.89 %	2.89	10.35
4	4.59 %	3.16	10.97
5	5.69 %	3.31	11.44
6	8.13 %	3.68	12.80
7	11.61 %	4.33	13.14
>= 8	13.22 %	5.87	14.51
Risk score and observed rates in validation set (6885 adults patients, 9 institutions)

Ref : Tu JV et al. Multicenter validation of a risk index for mortality, intensive care unit stay, and overall hospital length of stay after cardiac surgery. Circulation. 1995;91:677-84

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Urgency of Surgery

Urgent : surgery required within the same hospital admission (eg, unstable angina stabilized with maximal medical therapy).

Emergency : any surgery that is required within 24 hours at the time of referral (eg, postcatheterization "crash", unstable angina with hemodynamic instability).

Ejection Fraction :

Assessed by angiography or echocardiography.

Type of Surgery

Complex = multivalve or valve plus CABG.

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