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Table 3 Postoperative Outcomes (Unmatched)

From: Active clearance of chest tubes is associated with reduced postoperative complications and costs after cardiac surgery: a propensity matched analysis

Variable (mean or mean, n, %)P0 (n = 302)P2 (n = 337)p value
RB (composite)72 (24%)31 (9.2%)< 0.001
Re-exploration6 (2%)3 (0.89%)0.32
Pleural Intervention-Percutaneous69 (23%)25 (7.4%)< 0.001
Pleural Intervention- Surgical2 (0.66%)1 (0.3%)0.6
Pericardial Intervention4 (1.3%)4 (1.2%)1
# Pleural Effusion drained168590.001
POAF93 (37%) (n = 251)67 (25%) (n = 270)0.0032
Cardiac arrest8 (2.6%)8 (2.4%)1
Postoperative blood products used72 (24%)61 (18%)0.079
CTO (mL) first 24 h740 [561.3–975]680 [532–910]0.016
Total CTO (mL)1136 [834.3–1645]1040 [760–1430]0.041
Total CT (days)3 [3–4]2 [2–2]< 0.001
Infection (any)39 (13%)14 (4.2%)< 0.001
Surgical site deep0 (0%)0 (0%)1
Surgical site superficial0 (0%)0 (0%)1
Surgical site mediastinitis0 (0%)0 (0%)1
Pneumonia20 (6.6%)6 (1.8%)0.0022
Septicemia4 (1.3%)0 (0%)0.049
UTI11 (3.6%)4 (1.2%)0.064
C. Diff3 (0.99%)2 (0.59%)0.67
Highest postop- creatinine1.1 [0.905–1.4]1 [0.83–1.33]< 0.001
AKI Stage 185 (28%) (n = 299)67 (20%) (n = 332)0.02
AKI Stage 28 (2.7%)8 (2.4%)1
AKI Stage 34 (1.3%)3 (0.9%)0.71
Postop-renal dialysis7 (2.3%)2 (0.59%)0.092
Stroke2 (0.66%)4 (1.2%)0.69
Mortality7 (2.3%)9 (2.7%)0.81
  1. Abbreviations: Retained Blood (RB), Postoperative atrial fibrillation (POAF); Chest tube output (CTO); Chest tube (CT), Urinary Tract Infection (UTI), Clostridium difficile (C.Diff), Acute Kidney Injury (AKI)