An observational study in Colonoscopy, Bowel Cleansing and Water Intake, sponsored by Sinan Ömeroğlu, MD. Not yet recruiting. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-07-07.
Sponsored by Sinan Ömeroğlu, MD · Observational
Colonoscopy is a commonly used minimally invasive method for evaluating the lower gastrointestinal tract. The quality of colonoscopy is assessed by factors such as cecal intubation rate and adenoma detection rate, both of which are affected by bowel preparation. Adequate bowel cleansing is critical for an ideal colonoscopy. Inadequate bowel preparation can prolong the procedure time, miss pathological findings, and increase hospital costs due to repeated procedures. Studies have shown that nearly 25% of patients have inadequate bowel preparation. Several factors influence bowel cleansing, including diet, bowel preparation medication, and a history of gastrointestinal surgery. In a study, male gender, hospitalization, and spring season were reported as independent risk factors for inadequate bowel preparation. A retrospective US study associated age ≥66 with poor colonoscopy preparation, while two Asian studies associated age ≥60. Comorbidities such as diabetes, stroke, and dementia, as well as low socioeconomic status, have also been reported to negatively impact adequate bowel cleansing.
The Aronchick scale, Ottawa Bowel Preparation Scale (OBPS), and Boston Bowel Preparation Scale (BBPS) are commonly used in bowel preparation scoring. The BBPS is rated from 0 to 9, with 9 considered excellent bowel preparation. It is applied after cleansing and aspiration of colon segments, which are divided into right, transverse, and left colon. Among the current scoring systems, the BBPS is the most useful and reliable scale.
The positive effects of alkaline pH water on the gastrointestinal system are well known. Alkaline mineral water has positive effects on intestinal epithelial regeneration, inflammatory response, improved barrier function, and antioxidant mechanisms.
In this study, researchers aimed to investigate the effect of the pH value of water consumed during bowel preparation before colonoscopy on bowel cleansing.
Demographic, clinical, and intraoperative data of patients undergoing colonoscopy in investigators hospital's surgical endoscopy unit between July 2026 - July 2027 will be examined. Patients meeting the inclusion criteria will be included in the study. For pre-procedure information, all patients will be given a bowel preparation form by the surgical endoscopy unit, and patients who do not fully adhere to the diet will be excluded from the study. Informed consent will be obtained from the patients or their legal representatives. All procedures will be performed under sedation with the assistance of an anesthesiologist. Bowel cleansing will be assessed according to the Boston Bowel Preparation Scale (BBHS). The pH value and content of the drinking water will be noted when the bowel preparation form is given; no specific instructions will be given regarding this. However, patients will be asked to use the same water throughout the bowel preparation period. Data regarding drinking water will be confirmed on the day of the procedure for a second check.
This study will be the first of its kind in this field.
This is the only study on the registry with Sinan Ömeroğlu, MD as lead sponsor.
Counted across the registry records on this site, refreshed daily.
Demographic, clinical, and intraoperative data of patients undergoing colonoscopy in our hospital's surgical endoscopy unit between July 2026 - July 2027 will be examined. Patients meeting the inclusion criteria will be included in the study. For pre-procedure information, all patients will be given a bowel preparation form by the surgical endoscopy unit, and patients who do not fully adhere to the diet will be excluded from the study. Informed consent will be obtained from the patients or their legal representatives. All procedures will be performed under sedation with the assistance of an anesthesiologist. Bowel cleansing will be assessed according to the Boston Bowel Preparation Scale (BBHS). The pH value and content of the drinking water will be noted when the bowel preparation form is given; no specific instructions will be given regarding this. However, patients will be asked to use the same water throughout the bowel preparation period.
Inclusion Criteria::
Exclusion Criteria:
Group 1 according to pH range
Procedure: Colon preparation for colonoscopy
Group 2 according to pH range
Procedure: Colon preparation for colonoscopy
Group 3 according to pH range
Procedure: Colon preparation for colonoscopy
The quality of colonoscopy is assessed by factors such as cecal intubation rate and adenoma detection rate, both of which are affected by bowel preparation. Adequate bowel cleansing is critical for an ideal colonoscopy, and many factors influencing this have been identified. However, there are no studies in the literature regarding the water content consumed during colonoscopy preparation. Our study will be the first of its kind in this field.
The effect of pH value of water consumed during bowel preparation before colonoscopy on bowel cleansing according to the Boston Bowel Preparation Scale
Time frame: July 2026-July 2027
No study locations are listed for this record.
This study is not yet recruiting, as verified in Jun 2026. You cannot join it, but the record below documents what was studied.
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