Application of a novel small intestine decompression method in patients with intestinal obstruction: A retrospective cohort study

Table 1 Clinical features, n (%)

	Cannula group (n = 37)	Control group (n = 33)	Value of statistics	P value
Age (year) [mean (IQR)]	60 (48, 69)	62 (59, 68)	0.801	0.423
Sex			-	0.051
Male	16 (43.2)	22 (66.7)
Female	21 (56.8)	11 (33.3)
Cause of obstruction			-	0.881
Intestinal adhesions	16 (43.2)	12 (36.4)
Tumor	3 (8.1)	3 (9.1)
Intestinal foreign body	7 (18.9)	5 (15.2)
Inguinal hernia	11 (29.7)	13 (39.4)
Obstruction of intestinal tube length (cm) [mean (IQR)]	270 (250, 300)	280 (260, 300)	0.050	0.960
Obstruction time (hours) [mean (IQR)]	76 (68, 84)	72 (66, 76)	1.009	0.316

IQR: Interquartile range.

Table 2 Intraoperative situation, n (%)

	Cannula group (n = 37)	Control group (n = 33)	Value of statistics	P value
Operative method			χ² = 1.204	0.548
Intestinal adhesiolysis	9 (24.3)	12 (36.4)
Intestinal resection	16 (43.2)	12 (36.4)
Intestinal anastomosis	12 (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 contamination			χ² = 4.953	0.026
No	32 (86.5)	21 (63.6)
Yes	5 (13.5)	12 (36.4)
Operative time (minutes) [mean (IQR)]	150 (140, 160)	180 (170, 200)	Z = 6.183	< 0.001

IQR: Interquartile range.

Table 3 Postoperative recovery and follow-up, n (%)

	Cannula group (n = 37)	Control group (n = 33)	Value of statistics	P value
First postoperative flatus (hours) [mean (IQR)]	58 (56, 60)	70 (68, 72)	Z = 7.171	< 0.001
Hospitalization days (days) [mean (IQR)]	9 (8, 11)	14 (13, 15)	Z = 5.971	< 0.001
Surgical site infection			χ² = 4.142	0.042
No	33 (89.2)	23 (69.7)
Yes	4 (10.8)	10 (30.3)
Abdominal infection	0	0	-	-
Readmission			-	0.598
No	36 (97.3)	31 (93.9)
Yes	1 (2.7)	2 (6.1)

IQR: Interquartile range.