High cecal intubation rates with a new computer-assisted colonoscope: A feasibility study

Stefan Groth, Douglas Rex, Thomas Rösch, Nicolas Hoepffner

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Objectives: The acceptability of colonoscopy as a screening test is limited by several factors including patient discomfort. A new self-propelled colonoscope, the Invendo SC20 (Invendo Medical GmbH), may be helpful in reducing sedation. It consists of a sheathed endoscope contained within an inverted sleeve, and having an instrument channel and an electrohydraulic bendable tip; it is steered using a handheld device and propelled by a motorized drive unit. This study assessed the safety and efficacy of this new endoscope in volunteers undergoing colorectal cancer (CRC) screening. Methods: Paid healthy volunteers aged 50-70 years and eligible for screening colonoscopy were included. Total colonoscopy using carbon dioxide insufflation or water instillation on demand was attempted, with all procedures being started without sedation. The main outcome parameters were safety and the cecal intubation rate. Results: A total of 61 volunteers participated (34 men and 27 women; mean age 57.5 years). The cecum was reached in 60 volunteers (cecal intubation rate of 98.4%). The median time to reach the cecum was 15 min (range 7-53.5). Sedation was given in three individuals (4.9%). On withdrawal (median time 15 min), the material for histological evaluation was obtained from 33 polyps (mean size 4.8 mm) in 23 people by biopsy forceps or snare. No device-related complications were encountered. Conclusions: A new computer-assisted colonoscope, controlled using a handheld device, showed excellent cecal intubation rates during screening examinations, with sedation required in only 5% of screenees. Further clinical and comparative studies are warranted.

Original languageEnglish
Pages (from-to)1075-1080
Number of pages6
JournalAmerican Journal of Gastroenterology
Volume106
Issue number6
DOIs
StatePublished - Jun 2011

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Colonoscopes
Feasibility Studies
Colonoscopy
Intubation
Volunteers
Cecum
Endoscopes
Equipment and Supplies
Safety
Insufflation
Polyps
Early Detection of Cancer
Surgical Instruments
Carbon Dioxide
Colorectal Neoplasms
Healthy Volunteers
Biopsy
Water

ASJC Scopus subject areas

  • Gastroenterology

Cite this

High cecal intubation rates with a new computer-assisted colonoscope : A feasibility study. / Groth, Stefan; Rex, Douglas; Rösch, Thomas; Hoepffner, Nicolas.

In: American Journal of Gastroenterology, Vol. 106, No. 6, 06.2011, p. 1075-1080.

Research output: Contribution to journalArticle

Groth, Stefan ; Rex, Douglas ; Rösch, Thomas ; Hoepffner, Nicolas. / High cecal intubation rates with a new computer-assisted colonoscope : A feasibility study. In: American Journal of Gastroenterology. 2011 ; Vol. 106, No. 6. pp. 1075-1080.
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