Digestive System Diseases

All Conditions

Neoplasms

Wounds and Injuries

Colonic Diseases

Colonic Diseases, Functional

Carcinoma

Adenoma

Colitis

Decompression Sickness

Gastrointestinal Diseases

Intestinal Diseases

Neoplasms, Glandular and Epithelial

Neoplasms by Histologic Type

Colonoscopy using prototype colonoscope with passive bending function

Colonoscopy using standard colonoscope with no passive bending function

Colonoscope with a passive bending function

Passive bending function

Examination using standard colonoscope without passive bending function

No passive bending function

Geir Hoff, MD, PhD

A prototype colonoscope with an extra passively bending distal section has been developed by Olympus Japan (ref. publications). The present study (2006-2007) is testing refinements of this function.

Results from the first prototype evaluation has been published.Modifications are presently evaluated.

Colonoscope Passive Bending Function

Evaluation of a Novel Colonoscope Designed for Easier Passage Through Flexures: A Randomised Study

The proportion of patients reporting "no pain" when examined with prototype or standard colonoscope, respectively. Pain experienced was assessed by the patient in a questionnaire to be filled in at home on the day after the examination and mailed in a pre-paid envelope to a national quality register (Gastronet).

Sykehuset Telemark

Norwegian Department of Health and Social Affairs

Head of Research, Telemark Hospital

Patients were provided with a patient report form to be returned to the national quality assurance register Gastronet in a prepaid return envelope on the day after the colonoscopy.

The prototype colonoscope is in effect a standard Olympus endoscope with one exception: about 10cm proximal to the distal, actively bending tip, there is a more falccid section which bends passively in all directions against external pressure. It is hypothesized that this will ease passage through sharp bends (flexures).

Prototype Colonoscope

Colonoscope without a distal actively bending section

Standard Colonoscope

1 Prototype Colonoscope

Colonoscopy using standard colonoscope without a passive bending function

2 Standard Colonoscope

Total

Age, Categorical

Age, Continuous

Sex: Female, Male

Norway

Region of Enrollment

Patients referred to routine outpatients' colonoscopy

Dr. Geir Hoff

Power estimates based on assumption of 20% difference in pain-free examination comparing groups

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization	Link
Colonoscope Passive Bending Function	NCT00518349	Colitis Adenoma Carcinoma Functional Colo...	Passive bending... No passive bend...	18 Years -	Norwegian Department of Health and Social Affairs
Colonoscope Passive Bending Function	NCT00518349	Colitis Adenoma Carcinoma Functional Colo...	Passive bending... No passive bend...	18 Years -	Norwegian Department of Health and Social Affairs

Spots Global Cancer Trial Database for passive bending function