Effect of Laryngeal Mask Airway Storage Temperature on Postoperative Sore Throat

Investigation of the Effect on Postoperative Sore Throat of Insertion of Laryngeal Mask Airways Stored at Different Temperatures

NA · Ankara City Hospital Bilkent · NCT06713343

This study is testing whether the temperature at which laryngeal mask airways are stored affects the chances of patients getting a sore throat after surgery.

Quick facts

PhaseNA
Study typeInterventional
Enrollment172 (estimated)
Ages18 Years to 65 Years
SexAll
SponsorAnkara City Hospital Bilkent (other)
Locations1 site (Ankara, Çankaya)
Trial IDNCT06713343 on ClinicalTrials.gov

What this trial studies

This study investigates how the storage temperature of classical laryngeal mask airways (cLMAs) affects the incidence of postoperative sore throat in patients undergoing elective surgery. A total of 172 patients aged 18 to 65 will be randomly assigned to two groups: one group will receive cLMAs stored at low temperatures (10-12 °C) and the other at room temperatures (22-25 °C). Postoperative symptoms such as sore throat, dysphagia, dysphonia, and cough will be assessed at multiple time points after surgery. The study aims to provide insights into optimizing airway management during general anesthesia.

Who should consider this trial

Good fit: Ideal candidates for this study are adults aged 18 to 65 who are scheduled for elective surgery requiring general anesthesia with a duration of 1 to 2 hours.

Not a fit: Patients with significant comorbidities, those outside the age range, or those with recent sore throat issues may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved postoperative comfort and reduced incidence of sore throat for patients undergoing general anesthesia.

How similar studies have performed: While the specific approach of varying storage temperatures for cLMAs is novel, similar studies have explored factors affecting postoperative outcomes with varying degrees of success.

Eligibility criteria

Show full inclusion / exclusion criteria
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

Where this trial is running

Ankara, Çankaya

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: General Anesthesia, Laryngeal Mask Airways, Postoperative Sore Throat, Insertion of LMA, laryngeal mask airway, postoperative sore throat, LMA

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.