From: Prediction of new onset postoperative atrial fibrillation using a simple Nomogram
Variables | No POAF(n = 825) | POAF (n = 293) | P valve |
---|---|---|---|
Age, years, median (IQR) | 56.0 (45.0–65.0) | 63 (55.0–69.0) | < 0.001 |
Weight, kg, median (IQR) | 69.5 (60.0–78.0) | 67.0 (58.8–75.9) | 0.083 |
ASA, n (%) | 0.002 | ||
I | 6 (0.7%) | 0 (0.0%) | |
II | 174 (21.1%) | 38 (13.0%) | |
III | 440 (53.3%) | 159 (54.3%) | |
IV | 204 (24.7%) | 95 (32.4%) | |
V | 1 (0.1%) | 1 (0.34) | |
NYHA | 0.015 | ||
I | 241 (29.2%) | 69 (23.5%) | |
II | 342 (41.5%) | 123 (42.0%) | |
III | 224 (27.2%) | 85 (29.0%) | |
IV | 18 (2.2%) | 16 (5.5%) | |
EuroSCORE II, median (IQR) | 1.18 (0.75–2.35) | 1.83 (0.93–3.70) | < 0.001 |
Medical history, n (%) | |||
Preoperative Diuretics | 532 (64.5%) | 218 (74.4%) | 0.002 |
CKD | 20 (2.4%) | 15 (5.1%) | 0.037 |
Preoperative laboratory values | |||
RBC, × 109/L, median (IQR) | 4.45 (4.07–4.82) | 4.28 (3.88–4.75) | < 0.001 |
Hgb, g/dL, median (IQR) | 136 (121–147) | 131 (118–145) | 0.020 |
HCT, %, median (IQR) | 0.39 (0.36–0.43) | 0.38 (0.35–0.42) | 0.012 |
Platelet, × 109/L, median (IQR) | 202 (166–245) | 185 (150–229) | < 0.001 |
Total plasma protein, g/L, median | 67.7 (64.0–71.8) | 66.6 (63.5–70.8) | 0.019 |
Plasma albumin, g/L, median, (IQR) | 41.2 (38.5–43.9) | 40.4 (37.4–43.0) | 0.001 |
Scr, μmoI/L, median, (IQR) | 77.9 (66.7–89.3) | 80.1 (68.6–92.5) | 0.031 |
Blood urea nitrogen, mmol/L, median | 5.7 (4.5–6.7) | 6.3 (5.0–7.5) | < 0.001 |
eGFR, ml/min/1.73 m2, median (IQR) | 88.0 (71.0–106.0) | 74.8 (61.5–91.7) | < 0.001 |
Preoperative echocardiography | |||
LAd, mm, median (IQR) | 37.0 (33.0–42.0) | 40.0 (35.0–46.0) | < 0.001 |
IVS, mm, median (IQR) | 11.0 (10.0–12.0) | 12.0 (10.0–13.0) | 0.002 |
LVPW, mm, median (IQR) | 11.0 (10.0–12.0) | 11.0 (10.0–13.0) | 0.002 |
LVEF, %, median (IQR) | 61.0 (56.0–68.0) | 60.0 (52.0–66.0) | 0.008 |
Surgery characteristics, n (%) | |||
Surgery type | < 0.001 | ||
Valve | 389 (47.2%) | 136 (46.4%) | |
CABG | 307 (37.2%) | 90 (30.7%) | |
Valve + CABG | 42 (5.1%) | 36 (12.3%) | |
Valve + aorta | 87 (10.5%) | 31 (10.6%) | |
MIS, n (%) | 183 (22.2%) | 47 (16.0%) | 0.032 |
Inotropic drug, n (%) | 57 (0.48%) | 44 (15%) | < 0.001 |
PLT transfusion | 197 (23.9%) | 102 (34.8%) | 0.001 |
FFP transfusion, unit, median (IQR) | 4.2 (0.0–5.2) | 4.9 (0.0–5.9) | < 0.001 |
pRBC transfusion, unit, median (IQR) | 2.0 (0.0–4.0) | 2.5 (0.0–4.0) | < 0.001 |
Blood loss, ml, median (IQR) | 300 (300–400) | 400 (300–500) | < 0.001 |
Urine output, ml, median (IQR) | 870 (500–1300) | 800 (400–1290) | 0.045 |
CPB time, min, median (IQR) | 114 (84–157) | 125 (92–170) | 0.017 |
Anesthesia time, min, median (IQR) | 325 (280–390) | 340 (290–405) | 0.093 |
Operation time, min, median (IQR) | 270 (230–340) | 285 (240–350) | 0.077 |