The Effect of Endoscope Water Pump Flow Rates on Successful Unsedated Colonoscopy by Water Immersion Method: a Randomized Controlled Trial

The Effect of Endoscopy Water Pump Flow Rates on Successful Unsedated Colonoscopy by Water Immersion Method: a Randomized Controlled Trial

Status

Completed

Phases

Phase 2

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT01869296

Enrollment

132

Registered

2013-06-05

Start date

2013-05-31

Completion date

2015-06-30

Last updated

2016-08-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Effect of Endoscope Water Pump Flow Rates

Keywords

unsedated, water immersion colonoscopy, endoscope water pump flow rates

Brief summary

The purpose of this study is to compare the cecal intubation rate between two endoscopy water pump with different flow rates (1.7 ml/sec vs 10.4 ml/sec) in water immersion colonoscopy examination in unsedated patients undergoing diagnostic colonoscopy.

Interventions

PROCEDUREhigher flow rates

higher flow rates endoscope pump water immersion colonoscopy : 10.4 ml/sec

PROCEDURElower flow rates

lower flow rates endoscope pump water immersion colonoscopy : 1.7 ml/sec

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

DIAGNOSTIC

Masking

SINGLE (Subject)

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

* Adult \> 18 years old with indication for colonoscopy, such as chronic diarrhea, chronic constipation, hematochezia, chronic lower abdominal pain, positive fecal occult blood test, and other change of bowel habit symptoms indicative of need for diagnostic colonoscopy examination

Exclusion criteria

* Patients refuse to participate, patient with obstructive lesion in the colon distal of the cecum, patients with experienced of colon resection, hemodynamically unstable, severe cardiac disorders (such as acute myocardial infarction, unstable angina, malignant arrhythmia, and moderate to severe congestive heart failure), patients with fecal obstruction (whatever the causes) so that impossible to pass the scope through the obstructed segment.

Design outcomes

Primary

Measure	Time frame
cecal intubation rate	1.5 years

Secondary

Measure	Time frame
Abdominal discomfort score	1.5 years
Willingness to repeat	1.5 years
Causes of unsuccessful	1.5 years
Cecal intubation time	1.5 years
Position change	1.5 years
Diagnostic lesions	1.5 years
Abdominal compression	1.5 years

Countries

Indonesia

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 7, 2026