The new technology of the motorized Spiral enteroscope, originally developed for deep small bowel enteroscopy, might potentially overcome some limitations of standard colonoscopy.

Cecal intubation rate represents a key procedural quality parameter in diagnostic colonoscopy. However, even in experienced hands, a significant percentage of colonoscopies (1.6-16.7%) remain incomplete because of a failure to intubate the cecum. The new technology of the motorized Spiral enteroscope, originally developed for deep small bowel enteroscopy, might potentially overcome some limitations of standard colonoscopy. The study aim was to evaluate the feasibility and safety of motorized Spiral enteroscopy for difficult colonoscopies.

Inclusion Criteria:

- Indications for Spiral colonoscopy as a rescue procedure because of incomplete antecedent colonoscopy

Exclusion Criteria:

• Age under 18 years
• Known pregnancy
• Poor health status (ASA classification ≥ 4)
• Contraindication for sedation or standard colonoscopy
• Known coagulopathy (INR ≥ 2.0, platelets < 70 /nl) or anticoagulants other than aspirin
• Medical history of chronic inflammatory bowel disease or suspected bowel obstruction

Adult patients with failed colonoscopies using the conventional standrad colonoscopy devices.