Table 3.

Outcomes of SAVR According to Pre-Operative Risk Assessment

	Low-risk (n=565)	Intermediate- risk (n=309)	High-risk (n=175)	P value
Death at 30 days	7 (1.2%)	21 (6.8%)	22 (12.6%)	<0.01
Estimated mortality	2.3%	5.5%	14 %	<0.01
Observed/Expected (O/E) mortality	0.52	1.23	0.9	NA
Stroke	16 (2.8%)	13 (4.2%)	15 (8.6%)	0.01
Myocardial infarction	4 (0.7%)	7 (2.3%)	7 (4%)	0.02
Reoperation for bleeding	20 (3.5%)	21 (6.8%)	11 (6.3%)	0.07
Renal failure	5 (0.9%)	4 (1.3%)	6 (3.4%)	0.07
Cardiac arrest	8 (1.3%)	12 (4.1%)	14 (4.7%)	<0.01
Mechanical ventilation > 48 hours	26 (4.6%)	41 (13.3%)	41 (23.4%)	<0.01
Tracheostomy	0 (0%)	3 (1.4%)	3 (2.4%)	<0.01
Any complication	8.6%	24%	33%	<0.01
Length of stay – mean (±SD)	9 (6)	15 (18)	19 (15)	<0.01