Water Temperature and Bowel Cleansing Quality

January 18, 2026 updated by: Nurettin Şahin, Bakirkoy Dr. Sadi Konuk Research and Training Hospital

Effect of Water Temperature on Bowel Cleansing Quality: A Prospective Observational Study

Observational study The aim of this observational study is to investigate the effect of water temperature used during pre-colonoscopy bowel preparation on the quality of bowel cleansing. The primary research question to be addressed is as follows: Which water temperature results in better bowel cleansing quality? For this purpose, patients will be divided into two groups based on the use of warm water or cold water, and the quality of bowel preparation will be compared between the groups.

Study Overview

Status

Completed

Conditions

Detailed Description

The aim of this observational study is to investigate the effect of water temperature used during pre-colonoscopy bowel preparation on the quality of bowel cleansing. The primary research question to be addressed is as follows: Which water temperature results in better bowel cleansing quality? For this purpose, patients will be divided into two groups based on the use of warm water or cold water, and the quality of bowel preparation will be compared between the groups.

Study Type

Observational

Enrollment (Actual)

260

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Turkey (Türkiye)
    • Istanbul
      • Istanbul, Istanbul, Turkey (Türkiye), 34147
        • Bakırköy Dr. Sadi Konuk Training and Research Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Probability Sample

Study Population

patients admitted to the general surgery endoscopy clinic of a tertiary-care hospital for colonoscopy

Description

Inclusion Criteria: -Patients aged ≥ 18 years undergoing elective colonoscopy -Ability to provide informed consent -Planned bowel preparation using water-based regimens -No contraindication to warm or cold water intake

Exclusion Criteria: - Emergency colonoscopy -History of inflammatory bowel disease -Prior colorectal surgery -Severe heart failure, renal failure, or electrolyte imbalance -Pregnancy -Inability to complete bowel preparation protocol -Use of additional laxatives outside the study protocol

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
quality of bowel preparation
Time Frame: 01.02.2025-01.07.2025
The quality of bowel preparation will be assessed using the Boston Bowel Preparation Scale.
01.02.2025-01.07.2025

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Bakirkoy Dr. Sadi Konuk Research and Training Hospital

Investigators

  • Principal Investigator: Nurettin Sahin, MD, Bakırköy Dr. Sadi Konuk Training and Research Hospital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

February 1, 2025

Primary Completion (Actual)

July 1, 2025

Study Completion (Actual)

August 1, 2025

Study Registration Dates

First Submitted

December 8, 2025

First Submitted That Met QC Criteria

December 8, 2025

First Posted (Actual)

December 19, 2025

Study Record Updates

Last Update Posted (Actual)

January 21, 2026

Last Update Submitted That Met QC Criteria

January 18, 2026

Last Verified

January 1, 2026

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • Bakırkoy Sadi konuk trials

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

IPD Plan Description

All study data will be retained by the principal investigator and may be shared when required.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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