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Effect and Safety analysis of Preoperative Ultrasound-Guided Superior Laryngeal Nerve Block in Preventing Postoperative Sore Throat Caused by Pediatric Tonsillectomy and Adenoidectomy

Effect and Safety analysis of Preoperative Ultrasound-Guided Superior Laryngeal Nerve Block in Preventing Postoperative Sore Throat Caused by Pediatric Tonsillectomy and Adenoidectomy

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2500102750
Enrollment
Unknown
Registered
2025-05-19
Start date
2025-05-28
Completion date
Unknown
Last updated
2026-01-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Sleep apnea syndrome

Interventions

Experiment group:Superior laryngeal nerve block with 2% lidocaine 2mg/kg
Contral group:None

Sponsors

Affiliated Hospital of North Sichuan Medical College
Lead Sponsor

Eligibility

Sex/Gender
All
Age
4 Years to 12 Years

Inclusion criteria

Inclusion criteria: a. Aged 4–12 years; b. American Society of Anesthesiology (ASA) physical status classification I–II; c. Scheduled to undergo combined tonsillectomy and adenoidectomy; d. Body Mass Index (BMI) 18–24 kg/m^2.

Exclusion criteria

Exclusion criteria: a. Pre-existing sore throat; b. Anticipated difficult airway (modified Mallampati score > class 3, interincisor distance < 2 finger breadths); c. Legal guardians declining participation or failure to provide written informed consent; d. Preoperative hoarseness, dysphagia, or high risk of aspiration; e. Upper respiratory tract infection symptoms within 2 weeks prior to surgery; f. History of previous oral, pharyngeal, or cervical surgery; g. Severe dysfunction of major organs (cardiac, pulmonary, hepatic, or renal); h. History of allergy or adverse reactions to anesthetic agents used in this study.

Design outcomes

Primary

MeasureTime frame
The incidence of postoperative sore throat (POST) at 30 minutes, 1 hour, 2 hours, and 6 hours postoperatively;—

Secondary

MeasureTime frame
Emergence agitation scores (PAED scale) at immediately after extubation, 15 minutes post-extubation, and 30 minutes post-extubation;Pain intensity (FLACC scale) at different postoperative time points (30 minutes, 1 hour, 2 hours, 6 hours, and 24 hours postoperatively);Recovery quality (PRIC questionnaire) on postoperative day 1;Systolic Blood Pressure;Diastolic blood pressure;Mean arterial pressure;Heartrate;Extubation time;Postoperative nausea;Postoperative vomiting;Postoperative laryngospasm;Hoarseness graging;Cough grading;Postoperative analgesic dosage;—

Countries

China

Contacts

Public ContactJingyan Lin

Department of Anesthesiology, Affiliated Hospital of North Sichuan Medical College

linjingyan@nsmc.edu.cn+86 159 8377 1119

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026