Different Models of Tracheal Catheters Are Used for Female Thyroid Glands

Objective:Compare whether the use of tracheal catheters of models 6.0 and 6.5 causes less sore throat in women after thyroid surgery compared with the traditional use of model 7.0 tracheal catheters.Methods: Investigators enrolled 180 female patients with American Society of Anesthesiologists (ASA) physical status I and III, aged 18-65 years, and scheduled for elective undergoing thyroid surgery with general anesthesia. The participants were randomly assigned into three groups(n=60 each group):Group A: Tracheal catheter group with an inner diameter of 6.0mm, Group B: Tracheal catheter group with an inner diameter of 6.5mm, Group C: Tracheal catheter group with an inner diameter of 7.0mm.The incidence and severity of postoperative sore throat were recorded in three groups at 1 h, 6 h, 24 h and 48 h after operation.

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Key information

Conditions

Sore Throat Infections Otorhinolaryngologic Diseases Pharyngeal Diseases Pharyngitis Respiratory Tract Diseases Respiratory Tract Infections Stomatognathic Diseases Tracheal Tubes With an Inner Diameter of 6.0mm Tracheal Tubes With an Inner Diameter of 6.5mm Tracheal Tubes With an Inner Diameter of 7.0mm

Age range

18 year–65 year

Sex eligibility

Female

Study type

Observational

Primary location

Department of Anqing Hospital Anesthesiology

Anqing, Anhui, 246003, China

Location status: Recruiting

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Female;
Thyroid surgery should be performed under general anesthesia (GA) at an appropriate time;
ASA grade I-III;
Aged 18-65 years;
BMI less than 35Kg/m2
In line with ethics, patients voluntarily accept this experiment and sign informed consent.

Exclusion criteria

Reflux esophagitis, preoperative sore throat, chronic pharyngitis, preoperative hoarseness, use of anticoagulants or corticosteroids, high risk of reflux or aspiration, dysphagia, previous oral or pharyngeal surgical intervention, bleeding disorder, severe heart, lung, liver and kidney dysfunction
Upper respiratory tract infection occurred within 2 weeks before surgery
Unable to insert ET (no more than two intubations)
Patients with hoarseness or sore throat before surgery
Language communication, hearing impairment or brain dysfunction such as stroke, unable to communicate

Treatment and study plan

Primary outcomes

The incidence of postoperative sore throat

Time frame: at 1 hour, 6 hour, 24 hour and 48 hour after operation

The incidence of postoperative sore throat

Study contacts

Contact information is provided by the study sponsor or research team.

Sun Ling Lu Sun Ling LU, Master's degree

CONTACT

[email protected]

15955565806

Xu Si Qi Xu Si Qi, Doctor

CONTACT

[email protected]

13865192106

Sponsors and collaborators

Lead sponsor

Anqing Municipal Hospital

Other

Registry information

Official study title

A Randomized Controlled Trial Comparing Different Models of Tracheal Tube for Thyroid Surgery in Women

Important dates

Study start: 2025
Primary completion: 2026
Study completion: 2026
First posted: May 13, 2025
Registry last updated: May 27, 2026

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This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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