From the Research
Patients with an ostomy typically do not need a full bowel preparation for sigmoidoscopy, and a simple enema or limited preparation may be sufficient. For patients with a colostomy, if the sigmoidoscopy will only examine the distal segment (the portion between the rectum and the ostomy), a simple enema administered through the rectum or stoma may be sufficient rather than a complete oral bowel prep 1. For patients with an ileostomy, no preparation is needed since the colon has been bypassed. However, specific preparation requirements may vary based on the location of the ostomy, the portion of bowel being examined, and the reason for the procedure. Some clinicians may recommend a limited preparation such as clear liquids for 12-24 hours before the procedure and possibly a gentle laxative. The rationale for minimal preparation is that ostomy output tends to be more liquid and the colon segment being examined is often shorter and easier to clean than an intact colon.
Key Considerations
- The location of the ostomy and the portion of bowel being examined can impact preparation requirements 2
- A simple enema or limited preparation may be sufficient for patients with a colostomy or ileostomy 3
- Clear liquids and gentle laxatives may be recommended for limited preparation 4
- The healthcare provider performing the sigmoidoscopy should be consulted for specific preparation instructions, as they may have preferences based on the individual clinical situation and the specific anatomy following ostomy surgery 5
Preparation Options
- Simple enema administered through the rectum or stoma
- Limited preparation with clear liquids and gentle laxatives
- No preparation needed for patients with an ileostomy
- Specific preparation requirements may vary based on individual clinical situation and anatomy following ostomy surgery 1