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Glossopharyngeal and Maxillary Nerve Blocks in Adenotonsillectomy

NCT07379866 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 40

Last updated 2026-02-02

No results posted yet for this study

Summary

This study aims to compare of bilateral ultrasound-guided glossopharyngeal nerve (UGGNB) and ultrasound-guided maxillary nerve (UGMNB) versus conventional multimodal analgesia for tonsillectomy operations.

Conditions

  • Regional
  • Adenotonsillectomy

Interventions

PROCEDURE

ultrasound-guided glossopharyngeal nerve block (UGSGNB)

For the procedure, anesthesiologist will turn patient face carefully toward the clinician, and a linear ultrasound probe will be placed in the neck to check the surrounding target structures: the sternocleidomastoid muscle, the common carotid artery, and the internal jugular vein. After the sternocleidomastoid muscle has been identified, a linear ultrasound probe will be placed parallel to sternocleidomastoid muscle fiber direction just caudal to the mandibular ramus. The stylohyoid muscle is easily visualized by tiling the linear ultrasound probe toward the mandibular ramus. In this area, the stylohyoid muscle is positioned under the sternocleidomastoid muscle, and both can be observed under ultrasound guidance. A 25-gauge, 25-mm needle will be inserted deeply under the stylohyoid muscle through the sternocleidomastoid muscle via an out-of-plane approach. An ultrasound-guided nerve block will be performed with 3 mL of 0.25% bupivacaine after the absence of blood backflow is confirmed.

PROCEDURE

ultrasound-guided maxillary nerve (UGMN)

Curvilinear ultrasound probe will be placed in infra-zygomatic area, over maxilla, angled 45° cephalad. This probe position allows visualization of pterygopalatine fossa, limited anteriorly by maxilla and posteriorly by greater wing of sphenoid. A 22- gauge, 5-cm needle will be inserted perpendicularly to the skin following aseptic preparation of the skin at the frontozygomatic angle formed by posterior orbital rim and zygomatic. Once contact was made with the greater wing of sphenoid, needle will be redirected caudally and medially, and advances through the pterygomaxillary fissure into pterygomaxillary fossa. needle will be advanced using an out-of-plane approach, and needle tip can usually be identified during movements. Needle placement will be verified by real-time ultrasound guidance and negative aspiration before administration of 3-4 ml of 0.25 % bupivacaine. The same procedure will be then repeated on the contralateral side.

PROCEDURE

Placebo Block

ultrasound-guided maxillary nerve (UGMN) and ultrasound-guided glossopharyngeal nerve block (UGSGNB) using normal saline as placebo effect

Sponsors & Collaborators

  • Cairo University

    lead OTHER

Principal Investigators

  • Nagy malak, MD · Cairo University

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
5 Years
Max Age
13 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2026-01-31
Primary Completion
2026-05-31
Completion
2026-06-30

Countries

  • Egypt

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07379866 on ClinicalTrials.gov