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Retrospective Cohort Study
©The Author(s) 2026.
World J Gastrointest Surg. Jan 27, 2026; 18(1): 112927
Published online Jan 27, 2026. doi: 10.4240/wjgs.v18.i1.112927
Table 2 Intraoperative situation, n (%)

Cannula group (n = 37)
Control group (n = 33)
Value of statistics
P value
Operative method χ² = 1.2040.548
Intestinal adhesiolysis9 (24.3)12 (36.4)
Intestinal resection16 (43.2)12 (36.4)
Intestinal anastomosis12 (32.4)9 (27.3)
Intestinal decompression time (minutes) [mean (IQR)]10 (9, 10)16 (15, 17)Z = 7.108< 0.001
Reduced pressure amount (mL) [mean (IQR)]700 (680, 750)580 (550, 600)Z = 7.197< 0.001
Surgical field contaminationχ² = 4.9530.026
No32 (86.5)21 (63.6)
Yes5 (13.5)12 (36.4)
Operative time (minutes) [mean (IQR)]150 (140, 160)180 (170, 200)Z = 6.183< 0.001


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