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. 2022 Jun 28;28(24):2758–2774. doi: 10.3748/wjg.v28.i24.2758

Table 5.

Intraoperative and postoperative details of patients with colorectal anastomotic leakage (minor vs major)


Minor CAL, n = 7
Major CAL, n = 18
P value
Type of anastomosis, n (%) 0.52
Intrabdominal 3 (42.8) 9 (50.0)
Pelvic 4 (57.2) 9 (50.0)
Covering stoma, n (%) 1 (14.3) 1 (5.6) 0.47
Abdominal pain
POD3 1.86 1.94 0.08
POD4 1.57 2.13 0.04
POD5 1.86 1.92 0.03
Clinical condition
POD3 1 1.25 0.07
POD4 1.14 1.47 0.13
POD5 1.29 1.58 0.02
CRP levels in mg/L
POD3 178.35 221.02 0.28
POD4 146.30 226.01 0.13
POD5 107.64 251.45 0.01
CLP levels in μg/mL
POD3 2.75 12.99 < 0.001
POD4 3.34 10.60 0.01
POD5 2.52 10.96 0.004
CAL diagnosis in d, median 8 5.5 0.07
Diagnostic method, n (%) 0.12
Clinical 0 (0) 7 (38.9)
Abdominopelvic CT 7 (100) 11 (61.1)
CAL management, n (%) < 0.001
Drainage NA 2 (11.1)
Reoperation 16 (88.9)
LOHS in d, mean ± SD 28.0 ± 17.0 22.4 ± 12.9 0.38

CAL: Colorectal anastomotic leakage; POD: Postoperative day; CRP: C-reactive protein; CLP: Calprotectin; CT: Computed tomography; LOHS: Length of hospital stay; NA: Not applicable.