Efficacy of Prophylactic Negative-Pressure Wound Therapy with Delayed Primary Closure for Contaminated Abdominal Wounds

Table 2

Causes of intraabdominal contamination and CDC wound classification.

Causes	Number (%)	Class III/IV
Upper gastrointestinal diseases
Perforated peptic ulcer	2 (9.1)	2/0
Perforated gastric cancer	1 (4.5)	0/1
Post-ESD perforation	1 (4.5)	0/1
Others	1 (4.5)	1/0
Lower gastrointestinal diseases
Small bowel injury	7 (41.1)	6/1
Perforated diverticulitis	2 (9.0)	1/1
Malignancy	3 (13.6)	1/2
Perforated appendicitis	2 (9.0)	2/0
Others	3 (17.7)	2/1
Total	22 (100)	15/7

CDC: Centers for Disease Control and Prevention; ESD: endoscopic submucosal dissection.