Outcomes in patients undergoing complex cardiac repairs with cross clamp times over 300 minutes

Table 4 Univariate analysis of pre-, intra-, and postoperative variables with respect to patient mortality

Variable	All Deaths p-value (n = 72)	Mid-term Deaths^a p-value (n = 47)	Operative Deaths p-value (n = 25)
Era^b	0.162	0.024	0.393
Preoperative
Gender	0.001	0.066	0.009
Status^c	0.186	0.691	0.157
Left main discharge >50	0.071	0.313	0.183
Patient Age	0.015	0.066	0.322
Angina	0.137	0.0497	0.699
Diabetes	0.375	0.750	0.378
Smoker	0.898	0.344	0.161
First operation vs. reoperation	0.521	0.478	>0.999
NYHA score	0.078	0.248	0.210
Intraoperative
Surgery type^d	0.890	0.283	0.240
Perioperative MI	0.130	0.232	0.413
Perfusion time	<0.001	0.018	0.045
Cross clamp time	0.002	0.006	0.509
Postoperative
Deep sternal infection	-	>0.999	-
Stroke	-	0.392	-
Bleeding requiring reoperation	-	>0.999	-
Atrial fibrillation	-	>0.999	-
Pneumonia	-	>0.999	-
Ventilation >48 h	-	0.002	-
Renal failure	-	0.587	-
Ventilation time	-	0.026	-
Total ICU stay	-	0.002	-
Length of hospital stay	-	0.001	-
ICU readmission	-	>0.999	-

NYHA New York Heart Association, MI myocardial infarction, ICU intensive care unit
^aAll mid-term deaths were more than 30 days following the operation
^bSurgeries from 2001–2006 were compared to those from 2007–2012; the former time period was the reference category emergent vs. elective procedures
^cEmergent vs. elective procedures
^dSurgeries including coronary artery bypass grafts (CABGs) were compared to those that did not

ISSN: 1749-8090