Ultrasound Guided Superior Laryngeal Nerve Block Compared With Blind Block Technique

Ultrasound Guided Bilateral Superior Laryngeal Nerve Block Compared With Blind Block Technique For Awake Fibre-optic Intubation In Suspected Difficult Intubation

Status

UNKNOWN

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT04623645

Enrollment

Registered

2020-11-10

Start date

2021-02-28

Completion date

2021-09-30

Last updated

2021-01-15

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

Conditions

Airway Complication of Anesthesia

Keywords

Suspected Difficult Intubation

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.

Interventions

DEVICEultrasound technique

evaluate the effect of ultrasound guided technique for block of internal branch of superior laryngeal nerve

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

40 Years to 60 Years

Healthy volunteers

Yes

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 .

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.

Design outcomes

Primary

Measure	Time frame	Description
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.

Countries

Egypt

Contacts

Primary ContactAlshaymaa Mortada Ali Eltohry, M.B.B.CH

alshaymaaali62@gmail.com+201006485550

Backup Contactsanaa Mohamed El Fawal, professor

sana_y_fawal@yahoo.com+201143504178

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026