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Table 3 Comparison of patient-related factors associated with postoperative mortality

From: Poor prognostic factors in patients who underwent surgery for acute non-occlusive ischemic colitis

 

No. of patients (%)

Died (n = 15)

Survived (n = 35)

P -value a

Mean age (years) ± SD

67.33 ± 12.87

69.26 ± 14.79

0.664

Gender

  

0.545

Male

9 (60.0)

17 (48.6)

Female

6 (40.0)

18 (51.4)

Smoking

7 (46.7)

13 (37.1)

0.547

Alcohol habit

3 (20.0)

13 (37.1)

0.328

Mean BMI (Kg/m2) ± SD

23.18 ± 2.86

22.39 ± 3.74

0.468

Liver cirrhosis

2 (13.3)

3 (8.6)

0.629

Nephropathy

8 (53.3)

6 (17.1)

0.016

Diabetes

4 (26.7)

10 (28.6)

1.000

Hypertension

7 (46.7)

16 (45.7)

1.000

Respiratory diseaseb

0 (0)

2 (5.7)

1.000

Coronary artery disease

7 (46.7)

6 (17.1)

0.040

Atrial fibrillation

4 (26.7)

7 (20.0)

0.713

Previous abdominal surgeryc

6 (40.0)

6 (17.1)

0.146

Previous cardiovascular surgeryd

6 (40.0)

3 (8.6)

0.015

ASA score (≥4)e

14 (93.3)

20 (57.1)

0.019

Localization of ischemia

  

0.445

Right colon

2 (13.3)

9 (25.7)

Transverse colon

0 (0)

3 (8.6)

Left colon

10 (66.7)

23 (60.0)

Entire colon

1 (6.7)

2 (5.7)

Preoperative initial symptoms

   

Abdominal pain

14 (93.3)

32 (91.4)

1.000

Hematochezia

4 (26.7)

11 (31.4)

1.000

Diarrhea

3 (20.0)

8 (22.9)

1.000

Surgical delay (≥3 days)

11 (73.3)

12 (34.3)

0.015

Peritoneal irritation

11 (73.3)

22 (62.9)

0.533

Preoperative SIRS

10 (66.7)

15 (42.9)

0.217

Hemodynamic instability

12 (80.0)

15 (42.9)

0.029

Preoperative use of vasopressors

9 (60.0)

9 (25.7)

0.028

Preoperative laboratory data

   

WBC (k/uL)

1315 ± 6.59

1421 ± 9.16

0.687

CRP (mg/dL)

13.56 ± 7.92

10.47 ± 11.62

0.353

Urea (mg/dL)

41.98 ± 25.01

26.08 ± 20.77

0.024

Creatinine (mg/dL)

4.64 ± 9.74

1.54 ± 1.30

0.068

Lactate (mmol/L)

2.84 ± 2.69

3.08 ± 2.88

0.791

Type of surgery

  

0.492

Rt. Hemicolectomy

1 (6.7)

7 (20.0)

T-colon segmental resection

0 (0)

3 (8.6)

Lt. hemicolectomy

3 (20.0)

5 (14.3)

Sigmoid resection

7 (46.7)

11 (31.4)

Subtotal/Total colectomy

4 (26.7)

7 (20.0)

Colostomy

0 (0)

2 (5.7)

Emergency surgery

14 (93.3)

29 (82.9)

0.659

Bowel perforation

6 (40.0)

12 (34.3)

0.754

Stoma formation

12 (80.0)

22 (62.9)

0.328

Operative time (min)

236.1 ± 86.0

213.0 ± 81.4

0.370

Estimated blood loss (>1000 mL)

7 (46.7)

10 (28.6)

0.329

Intraoperative blood transfusion

9 (60.0)

17 (48.6)

0.545

Intraoperative use of vasopressors

9 (60.0)

10 (28.6)

0.056

  1. aCross-table analysis using Fisher’s exact test.
  2. bRespiratory disease included chronic obstructive pulmonary disease, bronchial asthma.
  3. cPrevious abdominal surgery included gastrointestinal surgery, abdominal aortic aneurysm surgery.
  4. dPrevious cardiovascular surgery included coronary artery bypass surgery, aortoiliac surgery, peripheral vascular surgery.
  5. eASA score according to the American Society of Anesthesiologists
  6. BMI, body mass index; SIRS, systemic inflammatory response syndrome; SD, standard deviation
  7. Bold print, P < 0.05.