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US-guided Airway Nerve Block vs. Topical Lidocaine in Video Laryngoscopy for Difficult Bariatric Intubation.

NCT07069686 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 80

Last updated 2025-07-17

No results posted yet for this study

Summary

The investigators will test the effects of ultrasound guided airway nerve block vs lidocaine topical anesthesia and it's direct effect in decreasing incidence of gag and cough reflex in suspected difficult intubation patients using video assisted laryngoscopey for those Undergoing bariatric surgery

Conditions

  • Gag Reflex

Interventions

PROCEDURE

Ultrasound guided airway nerve block for Endotracheal intubation

Glossopharyngeal nerve block: 1.5 mL 2% lidocaine, ultrasound probe on lateral neck below mandible, landmark = hyoid bone, tilt cephalad to target pharyngeal wall near tonsil; right side needle inserted out-of-plane from superior probe edge to avoid artery. Bilateral superior laryngeal nerve blocks: out-of-plane at lateral thyroid cartilage, orient probe medially, inject 1 mL 2% lidocaine into thyrohyoid membrane between hyoid and thyroid cartilage using 25-G 25 mm needle. Bilateral recurrent laryngeal nerve blocks: translaryngeal out-of-plane, locate cricothyroid membrane below thyroid cartilage, insert 25-G 25 mm needle 1.5 cm, confirm air backflow, inject 2 mL 2% lidocaine.

PROCEDURE

lidocaine topical anesthesia for Endotracheal intubation

will receive topical lidocaine 10% spray directly on the tongue and oropharynx without exceeding toxic doses.

Sponsors & Collaborators

  • Ain Shams University

    lead OTHER

Principal Investigators

  • David B Nabih, M.B.B.CH · Anesthesia resident Ain Shams University

Study Design

Allocation
RANDOMIZED
Purpose
OTHER
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
21 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2025-02-20
Primary Completion
2025-05-28
Completion
2025-05-28

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 NCT07069686 on ClinicalTrials.gov