Table 1: Patient characteristics by postoperative AF.

AF ( )Non-AF ( ) value

Age (y) (mean ± SD) 0.01
Sex (male) [ (%)]43 (98)75 (93)ns
Art. HTN [ (%)]33 (75)50 (62)ns
DM [ (%)]15 (34)23 (28)ns
Renal insufficiency [ (%)]1 (2.3)2 (2.5)ns
Nicotin abuse [ (%)]8 (18)37 (46)0.004
Alcohol abuse [ (%)]1 (2.3)2 (2.5)ns
ACEI preop. [ (%)]29 (66)48 (59)ns
Diuretics preop. [ (%)]11 (25)15 (18.5)ns
Digitalis preop. [ (%)]2 (4.5)2 (2.5)ns
CCB preop. [ (%)]15 (34)18 (22)ns
Beta-blocker preop. [ (%)]32 (72.8)66 (81.5)ns
LIMA [ (%)]41 (93)80 (99)ns
SVGs ≥ two [ (%)]27 (61.5)41 (51)ns
SVG →RCA [ (%)]27 (61.5)39 (48)ns
“Off-pump” surgery [ (%)]4 (9)18 (22)ns
Extubation within
24 hrs [ (%)]
32 (72.8)63 (77.7)ns
Hospital stay (d) (median)760.03
Hemoglobin (g/dL)
(mean ± SD)
ns
Blood urea (mg/dL)
(mean ± SD)
ns
Serum Creatinine (mg/dL) (mean ± SD) ns
Na+preop. (mmol/mL)
(mean ± SD)
ns
K+preop. (mmol/mL)
(mean ± SD)
ns

AF: atrial fibrillation; : number of cases; y: years; SD: standard deviation; Art. HTN: arterial hypertension; DM: diabetes mellitus; ACEI: angiotensin converting enzyme inhibitors; CCB: calcium channel blockers; preop: preoperative; LIMA: left internal mammary artery; SVG: saphenous vein graft; RCA: right coronary artery; hrs: hours; ns: nonsignificant.