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Table 6 Postoperative Outcomes (Matched)

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, %)Phase 0 (n = 260)Phase 2(n = 260)p value
Retained Blood (composite)60 (23%)25 (9.6%)<.001
Re-exploration6 (2.3%)2 (0.77%).29
Pleural Intervention-Percutaneous57 (22%)21 (8.1%)<.001
Pleural Intervention- Surgical2 (0.77%)0 (0%)0.25
Pericardial Intervention4 (1.5%)4 (1.5%)1
# Pleural Effusions drained13953.002
POAF79 (37%) (n = 214)55 (25%) (n = 216).011
Cardiac arrest8 (3.1%)5 (1.9%).58
Postoperative blood products used60 (23%)48 (18%).2
CT output (mL) first 24 h753 [584–975]678 [539–950].038
Total CT output (mL)1152 [854–1656]1038 [760–1431].020
Total CT (days)3 [3–4]2 [2–2]<.001
Infection (any)37 (14%)10 (3.8%)<.001
Surgical site deep0 (0%)0 (0%)1
Surgical site superficial0 (0%)0 (0%)1
Surgical site mediastinitis0 (0%)0 (0%)1
Pneumonia20 (7.7%)4 (1.5%).0022
Septicemia4 (1.5%)0 (0%).062
UTI10 (3.8%)4 (1.5%).18
C. Diff3 (1.2%)1 (0.38%).62
Highest postoperative creatinine1.1 [1–1.4]1.0 [0.8–1.2]<.001
AKI Stage 178 (30%) (n = 257)44 (17%) (n = 256).0014
AKI Stage 27 (2.7%) (n = 257)4 (1.6%) (n = 256).55
AKI Stage 33 (1.2%) (n = 257)1 (0.39% (n = 256).62
Postoperative renal dialysis7 (2.7%)0 (0%).0078
Stroke2 (0.77%)2 (0.77%)1
Mortality7 (2.7%)7 (2.7%)1
  1. Abbreviations: Postoperative atrial fibrillation (POAF); Chest tube (CT), Urinary Tract Infection (UTI), Clostridium difficile (C.Diff), Acute Kidney Injury (AKI),