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Table 1 Comparison between the resection and non-resection groups

From: Prediction model for irreversible intestinal ischemia in strangulated bowel obstruction

 

Resection group (n = 42)

Non-resection group (n = 41)

P-value

Patient characteristics

 Age

75.5 (21–94)

72 (26–96)

0.433

 Male sex

15 (35.7%)

22 (53.7%)

0.1

 Body mass index (kg/m2)

19.9 (15.0–27.1)

20.4 (13.5–27.5)

0.909

 Previous history of laparotomy

32 (76.2%)

31 (75.6%)

0.951

Vital signs

 Systolic blood pressure < 100 mmHg

4 (9.5%)

1 (2.4%)

0.187

 Body temperature > 38 °C

3 (7.1%)

3 (7.3%)

0.651

Blood gas analysis

 pH

7.429 (7.219–7.575)

7.438 (7.23–7.542)

0.31

 Base excess (mEq/L)

−1.7 (− 14.7 to 6.3)

0.35 (− 17.8 to 8.5)

0.006

Laboratory data

 WBC (/µL)

12,550 (4850–34,000)

9,100 (3060–20,600)

< 0.001

 CRP (mg/dL)

0.73 (0.02–28.84)

0.27 (0.02–33.16)

0.36

 Hb (g/dL)

13.2 (7.4–20.6)

13.8 (8.3–22.1)

0.689

 Plt (×104/µL)

25.7 (8.2–74.5)

22.6 (7.6–48.2)

0.515

 Alb (g/dL)

3.5 (2.1–5.0)

3.7 (1.7–4.5)

0.45

 Bil (mg/dL)

0.85 (0.2–1.7)

0.8 (0.3–7.0)

0.416

 Cre (mg/dL)

0.735 (0.30–5.31)

0.75 (0.31–2.84)

0.743

CK (IU/L)

75 (20–1048)

81 (10–1156)

0.996

CT findings

 Presence of peritoneal fluid

42 (100%)

30 (73.2%)

< 0.001

 Presence of emphysema

1 (2.4%)

0 (0%)

0.506

 Poor or no contrast bowel wall enhancementa

22 (56.4%)

6 (17.1%)

< 0.001

 CT value of peritoneal fluid (HU)

21.4 (10.2–77.0)

15.1 (6.7–32.5)

< 0.001

Operative factors

 Laparoscopic surgery

7 (16.7%)

15 (36.6%)

0.04

 Presence of hemorrhagic peritoneal fluid

37 (88.1%)

14 (34.1%)

< 0.001

 Operation time (min)

104 (53–291)

74 (36–143)

0.002

 Blood loss (mL)

100 (10–2425)

10 (10–1570)

< 0.001

Pathological findings

 Ischemia

3 (7.1%)

 

 Mucosal hemorrhagic necrosis

9 (21.4%)

 

 Transluminal hemorrhagic necrosis

30 (71.4%)

 
  1. Categorical data are expressed as percentages, and continuous data are expressed as median (min–max)
  2. WBC white blood cell, CRP C-reactive protein, Hb hemoglobin, Plt platelet, Alb albumin, Bil bilirubin, Cre creatinine, CK creatine kinase, CT computed tomography, HU Hounsfield unit
  3. aContrast-enhanced CT scan was not performed in three patients in the resection group and six patients in the non-resection group