IMPEL Protocol for IRB
Time-bound, prospective, non-randomized observational clinical audit of adult mechanical large-bowel obstruction, using routinely collected data and six-month follow-up.
Request the current protocol →Review the current IMPEL protocol and study resources.
The current protocol is version 1.0, dated 1 May 2026. Centres should also follow their local approval and governance requirements.

Time-bound, prospective, non-randomized observational clinical audit of adult mechanical large-bowel obstruction, using routinely collected data and six-month follow-up.
Request the current protocol →The study registration is pending. The registry record will be linked here when the public identifier is available.
Ask about the registry record →For the current protocol or centre onboarding, contact the study team.