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The Effects of Menthol and Cold Spray Applications on Thirst and Comfort in Bariatric Surgery

Turkey (Türkiye)180 participantsStarted 2026-07-30

Plain-language summary

Bariatric surgery is a widely used surgical treatment method in obesity management that improves quality of life and provides long-term weight loss. Patients often experience thirst in the early postoperative period. Factors that increase thirst include cessation of oral intake, room temperature, intubation, dehydration, hypovolemia, and oxygen therapy in the preoperative period. Furthermore, failure to initiate oral intake early in the postoperative period increases thirst and negatively impacts patient comfort. The aim of this study is to evaluate the effects of menthol spray and cold spray applications on the thirst and comfort levels of patients in the postoperative period. The study aims to contribute to the improvement of nursing practices related to postoperative thirst and comfort management with the findings obtained from this study. This randomized controlled clinical trial is planned to be conducted with patients undergoing bariatric surgery at the General Surgery Clinic of Istanbul Atlas University Hospital. The study population will consist of patients hospitalized in the General Surgery Department of Atlas University Hospital who have undergone bariatric surgery. The sample was determined as 159 patients meeting the inclusion criteria in three groups, calculated using the GPower 3.1.9.7 program with an effect size of f=0.25, a significance level of α=0.05, and a test power of (1-β)=0.80. Considering data loss, the study is planned to be conducted with 180 patients. The "Patient Information Form," "Visual Analog Scale-Comfort (VAS-A)," "Dehydration Visual Analog Scale (VAS)," and "Surgical Dehydration Discomfort Scale (CDSBRÖ)" will be used to collect research data.

Who can participate

Age range

18 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * • Patients who are 18 years of age or older, * who undergo bariatric surgery under general anesthesia, * who do not have oral or nasal diseases, or vision, hearing, speech, or comprehension problems, * who are classified as grade I or II according to the American Society of Anesthesiologists (ASA) Physical Status Classification System, * who are not allergic to menthol, * who do not have severe vomiting, and • whose preoperative fasting and thirst period is 8 hours. Exclusion Criteria: * Patients with impaired oral and tongue mucosal integrity prior to surgery, Patients with any neurological, kidney, heart or lung disease with cognitive impairment and those using psychoactive drugs will be excluded.

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Postoperative thirst intensity

Timeframe: Baseline (upon admission to the surgical ward before intervention), and at the 2nd, 4th, and 6th postoperative hours.

Trial details

NCT IDNCT07728500

SponsorAtlas University

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2026-09-30

View on ClinicalTrials.gov More Thirst in Bariatric Surgery Patients trials