Impact of the Four Seasons on Bowel Cleansing Quality Prior to Colonoscopy

Patients scheduled to undergo elective colonoscopy will be evaluated in this observational study. No additional medications, interventions, or diagnostic procedures beyond standard clinical practice will be administered. The primary objective of the study is to investigate whether the quality of bowel preparation prior to colonoscopy varies according to seasonal differences.

Bowel cleansing quality will be assessed during the colonoscopy procedure using standard evaluation criteria. The quality of bowel preparation will be compared across different seasons to determine the potential impact of seasonal variation on bowel cleansing adequacy prior to elective colonoscopy.

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Key information

Conditions

Bowel Preparation Quality Colonoscopy

Age range

18 year–90 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Bakırköy Dr. Sadi Konuk Training and Research Hospital

Istanbul, 34147, Turkey (Türkiye)

About this study

This study is designed as an observational analysis of patients undergoing elective colonoscopy. All participants will receive standard bowel preparation according to routine clinical practice, and no additional medications, interventions, or diagnostic tests will be introduced as part of the study protocol.

The primary aim of the study is to evaluate whether seasonal variation influences the quality of bowel preparation prior to colonoscopy. Adequate bowel cleansing is a critical factor affecting diagnostic accuracy, procedural efficiency, and patient outcomes during colonoscopy. Environmental factors, including seasonal changes, may influence patient compliance, hydration status, and dietary habits, which could potentially affect bowel preparation quality.

Bowel cleansing quality will be assessed during the colonoscopy procedure using established bowel preparation assessment criteria. Patients will be categorized according to the season in which the colonoscopy is performed, and bowel preparation quality will be compared among these seasonal groups.

The findings of this study are expected to provide insight into the potential impact of seasonal variation on bowel preparation quality and may contribute to optimizing colonoscopy preparation strategies in clinical practice.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Patients aged between 18 and 90 years
Patients scheduled for elective colonoscopy

Exclusion criteria

Patients younger than 18 years or older than 90 years
Patients scheduled for emergency colonoscopy
Patients with colonic obstruction
Patients with chronic kidney disease
Patients with a history of abdominal surgery involving the stomach, duodenum, small intestine, or colon

Treatment and study plan

Routine Colonoscopy Bowel Preparation Quality Assessment

Other

This is an observational and non-interventional study. No additional medications, diagnostic tests, or procedures are administered to the patients beyond routine clinical practice. The intervention consists solely of assessing bowel preparation quality during routinely performed elective colonoscopy procedures and evaluating its association with seasonal variation.

Primary outcomes

Bowel Preparation Quality During Elective Colonoscopy

Time frame: During the colonoscopy procedure

Bowel preparation quality assessed during elective colonoscopy using the Boston Bowel Preparation Scale (BBPS), which ranges from 0 to 9, with higher scores indicating better bowel cleansing quality. Bowel preparation quality scores will be compared across different seasons.

Sponsors and collaborators

Lead sponsor

Bakirkoy Dr. Sadi Konuk Research and Training Hospital

Other Gov

Registry information

Acronym: SEASON-BCQ

Important dates

Study start: 2025
Primary completion: 2026
Study completion: 2026
First posted: Jan 26, 2026
Registry last updated: Jan 27, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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