NCT05825872

Ultrasound-Guided Internal Superior Laryngeal Nerve Block for Double-Lumen Bronchial Tube

Effect of Ultrasound-Guided Internal Superior Laryngeal Nerve Block on Sore Throat After Intubation by Double-Lumen Bronchial Tube for Thoracoscopic Surgery

• Status: Unknown
• Phase: Phase 4
• Study type: Interventional
• Enrollment: 64 (estimated)
• Sponsor: Menoufia University · Academic / Other
• Sex: All
• Age: 18 Years – 75 Years
• Healthy volunteers: Not accepted

Summary

investigate the effectiveness and safety of ultrasound-guided bilateral internal branch of the SLN (iSLN) block for alleviating POST immediately after the operation.

Conditions

• Postoperative Sore Throat

Interventions

Type	Name	Description
PROCEDURE	internal superior laryngeal nerve block	A linear 4- to 12-MHz ultrasound probe will be placed in the oblique parasagittal plane to obtain an image of the hyoid bone and the thyroid cartilage. The probe will be kept parasagitally, and the following structures will be identified anteriorly to posteriorly: omohyoid muscle, sternohyoid muscle, thyrohyoid muscle, thyrohyoid membrane, superior laryngeal artery, and pre-epiglottis space. After identifying the local anatomic structure, a needle will be inserted out-plane from anterior to posterior. The muscles above the thyrohyoid membrane will be penetrated and hydrodissected; local anesthetic will be injected into the superior laryngeal nerve space. The superior laryngeal nerve space will be located between the hyoid bone (cephalad) and the thyroid cartilage (caudal) and delimited between the thyrohyoid muscle, anteriorly, and the thyrohyoid membrane and the pre-epiglottis space, posteriorly
DRUG	Lidocaine 2% Injectable Solution	0.5 ml will be injected
DRUG	Bupivacaine 0.5% Injectable Solution	1.5 ml will be injected

Timeline

• Start date: 2023-04-05
• Primary completion: 2023-07-05
• Completion: 2023-09-05
• First posted: 2023-04-24
• Last updated: 2023-04-24

Locations

1 site across 1 country: Egypt

Regulatory

• FDA-regulated drug study