Effect of Preoperative Atrial Fibrillation on Postoperative Outcome following Cardiac Surgery

Table 2

Postoperative outcome in atrial fibrillation patients undergoing cardiac surgery compared to sinus rhythm patients (𝑛=3777).

Outcome	Atrial fibrillation (𝑛=413)	Normal rhythm (𝑛=3364)	𝑃-value
Low cardiac output requiring Inotropes ± IABP	241 (58%)	1308 (39%)	<0.001
Reoperation	34 (8%)	182 (5%)	0.020
Ventilation time
<24 hours	348 (84%)	3161 (94%)	<0.001
>24 hours	65 (16%)	203 (6%)
Pulmonary complication	97 (23%)	640 (19%)	0.031
Neurological complications	37 (9%)	228 (7%)	0.101
Renal failure
Dialysis/nondialysis	53 (13%)	208 (6%)	<0.001
No	360 (87%)	3156 (94%)
Infective complications	60 (15%)	253 (8%)	<0.001
Gastrointestinal complications	13 (3%)	39 (1%)	<0.001
ICU stay (days)
Mean ± SD	3.4±7.4	1.9±4.3	<0.001
ICU readmission	29 (7%)	99 (3%)	<0.001
Length of hospital stay (days)
Mean ± SD	12.7±17.4	8.7±11.4	<0.001
Blood transfusion	231 (56%)	1486 (44%)	<0.001
Status
Alive	375 (91%)	3278 (97%)	<0.001
Dead	38 (9%)	86 (3%)

ICU: intensive care unit.
IABP: intraaortic balloon pump.