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Chill out: cold breathing tubes might ease Post-Surgery sore throat

NCT ID NCT06713343

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

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

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

172 people

The number who actually took part.

Started

Nov 2024

Finished

Feb 2025

Lead sponsor

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

18 to 65 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

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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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Ankara Bilkent City Hospital

    Ankara, Çankaya, 06800, Turkey (Türkiye)

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