Chill out: cold breathing tubes might ease Post-Surgery sore throat
NCT ID NCT06713343
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tested whether storing a laryngeal mask airway (a breathing tube used during general anesthesia) at a cold temperature (10-12°C) instead of room temperature (22-25°C) could reduce sore throat after surgery. 172 adults having elective surgery were randomly assigned to one of the two groups. Researchers then asked patients about sore throat, trouble swallowing, hoarseness, and cough at several time points after surgery.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Laryngeal mask airway stored at low temperature (10-12°C) vs room temperature (22-25°C)
- What this could lead to
- If cooling LMAs reduces sore throat, hospitals could adopt this simple, low-cost practice to improve patient comfort after surgery.
- What could go wrong
- This is a small, single-center study with no blinding, so results may not apply widely. The temperature difference is modest, so the effect may be minimal or absent.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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172 people
The number who actually took part.
- Started
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Nov 2024
- Finished
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Feb 2025
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 65 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Under elective conditions, between 18-65 years of age, those who will receive general anesthesia and ventilation will be provided with a laryngeal mask airways * ASA I-III risk group * Patients who agreed to be included in the study * Estimated duration of anesthesia lasting between 1 hour and 2 hours Exclusion Criteria: * Patients younger than 18 and older than 65 years old * Patients who are incapable of reading, understanding and signing the consent form * Hemodynamically unstable patients * Patients with orofacial clefts or abnormalities of the oral cavity or pharynx, patients who have undergone oral or laryngeal surgery * Patients at high risk of aspiration of gastric contents (pregnant women, those with gastro-esophageal reflux, those with hiatal hernia) * Patients do not want to participate in the study * Patients with sore throat in the last 30 days before surgeryPatients * Patients with advanced dementia * Patients with ASA score above III * Patients with a Mallampati score of 4 * Emergency surgical procedures
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Genom att skicka in godkänner du våra Användarvillkor
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Ankara Bilkent City Hospital
Ankara, Çankaya, 06800, Turkey (Türkiye)
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