Ultrasound Guided Superior Laryngeal Nerve Block Compared With Blind Block Technique

Not Applicable

• Conditions: Airway Complication of Anesthesia
• Interventions: Device: ultrasound technique

• Registration Number: NCT04623645
• Lead Sponsor: Ain Shams University

Brief Summary

The aim of this study is to evaluate the effect of ultrasound guided technique for block of internal branch of superior laryngeal nerve in surgical patient in comparison to blind anatomical technique.

Detailed Description

Airway anesthesia is pivotal for successful awake intubation provided either topically or by nerves blocks. Airway blocks are technically harder to perform with more complications possibilities. However, in experienced hands, they can be useful as they provide better intubating conditions.

Study Timeline

• Study First Submitted: 2020-11-05
• Study First Submitted QC: 2020-11-09
• Study First Posted: 2020-11-10
• Status Verified: 2021-01
• Last Update Submitted: 2021-01-13
• Last Update Posted: 2021-01-15
• Study Start: 2021-02
• Primary Completion: 2021-08
• Study Completion: 2021-09

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 60

Inclusion Criteria

1. American Society of Anesthesiologists ( ASA ) physical status I and II.
2. Age between 40-60 years.
3. Modified Mallampati class III-IV .

Read More

Exclusion Criteria

1. Local pathology of the neck.
2. Bleeding diathesis.
3. Allergy to local anesthetic agent.
4. Intellectual impairment.
5. Psychiatric disease.
6. Body mass index ≥30 kg/m2.

Read More

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
ultrasound group	ultrasound technique	patient using ultrasound technique.probe will be placed over submandibular area, the thyrohoid muscle and thyrohyoid membrane will be identified between greater horn fo hyoid bone and thyroid cartilage , 3 ml of lignocaine will be placed on space between thim and the procedure will repeated on contra lateral side.
anatomical blind group	ultrasound technique	patient using anatomical land mark technique, internal branch of superior laryngeal nerve will be blocked slightly anterior to greater horn of hyoid bone . by 3 ml lignocaine . the procdure will be repeated on contra lateral side .

Primary Outcome Measures

Name	Time	Method
assessment the quality of airway anesthesia	Up to 2 years post baseline	The Quality of Airway anesthesia will be graded as: 0 = no coughing or gagging in response to intubation, 1 = mild coughing or gagging that will not hinder intubation, 2 = moderate coughing or gagging that will interfere minimally with intubation,3 = severe coughing or gagging that make intubation difficult and 4 = very severe coughing or gagging that will require additional local anesthetic or change in technique to achieve successful intubation.

Trial Locations

Locations (1)

Alshaymaa Mortada Ali Eltohry; 🇪🇬 Alexandria, Please Select An Option, Egypt