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Parastomal hernia.

Published: 4th July 2003

Authors: P. W. G. Carne, G. M. Robertson, F. A. Frizelle

Background

Parastomal hernia following formation of an ileostomy or colostomy is common. This article reviews the incidence of hernia, the technical factors related to the construction of the stoma that may influence the incidence, and the success of the different methods of repair.

Method

A literature search using the Medline database was performed to locate English language articles on parastomal hernia. Further articles were obtained from the references cited in the literature initially reviewed.

Results

Parastomal hernia affects 1·8–28·3 per cent of end ileostomies, and 0–6·2 per cent of loop ileostomies. Following colostomy formation, the rates are 4·0–48·1 and 0–30·8 per cent respectively. Site of stoma formation (through or lateral to rectus abdominis), trephine size, fascial fixation and closure of lateral space are not proven to affect the incidence of hernia. The role of extraperitoneal stoma construction is uncertain. Mesh repair gives a lower rate of recurrence (0–33·3 per cent) than direct tissue repair (46–100 per cent) or stoma relocation (0–76·2 per cent).

Conclusion

The incidence of parastomal hernia is between 0 and 48·1 per cent, depending on the type of stoma and length of follow‐up. No technical factors related to the construction of the stoma have been shown to prevent herniation. If repair is required, a prosthetic mesh technique should be considered. Further randomized clinical trials (particularly of extraperitoneal stoma construction) are needed. Copyright © 2003 British Journal of Surgery Society Ltd. Published by John Wiley & Sons, Ltd.

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