Univariate Analyses: Intraoperative Variables -- 1997 Canada AVR + MVR Patients -- STS

STS CANADIAN CARDIAC SURGERY DATABASE
1997 AORTIC + MITRAL VALVE REPLACEMENT PATIENTS
UNIVARIATE ANALYSIS: INTRAOPERATIVE VARIABLES

PATIENT POPULATION:
OPERATIVE SURVIVORS:
OPERATIVE MORTALITIES:

51
49 (96.08%)
2 ( 3.92% )

RISK VARIABLE	Count	% of Pop.	Mortality w/ Variable Present		Mortality w/ Variable Absent		Relative Risk	c²p-Value
Blood Cardioplegia	49	96.08%	2/49	4.08%	0/2	0.00%		0.7707
Cryst Cardioplegia	2	3.92%	0/2	0.00%	2/49	4.08%	0.00	0.7707
O₂ Cryst Cardioplegia	0				2/51	3.92%
Antegrade Cardioplegia	46	90.20%	2/46	4.35%	0/5	0.00%		0.6343
Retrograde Cardioplegia	28	54.90%	0/28	0.00%	2/23	8.70%	0.00	0.1114
Warm Cardioplegia	22	43.14%	0/22	0.00%	2/29	6.90%	0.00	0.2089
Cold Cardioplegia	38	74.51%	2/38	5.26%	0/13	0.00%		0.3987

Inotropes Leaving OR	33	64.71%	2/33	6.06%	0/18	0.00%		0.2866
Antiarrhy Leaving OR	1	1.96%	0/1	0.00%	2/50	4.00%	0.00	0.8383

Atrial Pacing	23	45.10%	2/23	8.70%	0/28	0.00%		0.1114
Ventricular Pacing	21	41.18%	2/21	9.52%	0/30	0.00%		0.0846

Intraop IABP	1	1.96%	1/1	100.00%	1/50	2.00%	50.00	0.0000