Abstract
Sixty-six cases of abdominoperineal resection of the rectum were divided into two groups for comparison: Group A (n=19),with stoma created by a skin incision measuring 24-26 mm,and Group B (n=47),with stoma created by a skin incision measuring 20 mm.
The size of stoma ranged from 25 to 30 mm in Group B,which was about 5 mm smaller than that in Group A.
As for stoma shape,round stoma totalled 31.6％ of Group A as compared with 56.6％ in Group B. Elliptical or indeterminate stoma tended to be observed more frequently in obese patients.
In Group A,36.6％ of stoｍas were less than 8 mm in length;about 60％ of them were from obese patients. In contrast,only 8.4％ of cases in Group B had stoma of less than 8 mm in length; about 80％ of cases were obese.
The results indicate that in creating stoma,a precise 20 mm skin incision may lead to a more compact,well-rounded and adequately protruded stoma. In obese patients,however,other techniques may be required. Since weight gain after surgery would modify the conditions of stoma or surrounding abdominal region,additional guidance for weight-control is also important.
