Ultrasound Versus Clinical Tests as Predictors of Difficult Endotracheal Intubation in Patients With Obstructive Sleep Apnoea Undergoing Elective Surgery Under General Anaesthesia

NCT ID: NCT05402683

Last Updated: 2022-06-02

Basic Information

• Recruitment Status: UNKNOWN
• Total Enrollment: 70 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2022-02-01
• Study Completion Date: 2023-01-31

Brief Summary

Obstructive sleep apnoea (OSA) is the most serious kind of the sleep-disordered breathing group, characterised by recurrent episodes of partial to complete obstruction of the upper airway resulting in inefficient alveolar gas exchange and desaturation[1].

It is a commonly encountered condition with a reported prevalence of 9-25% in the general population [2].

However, the majority of OSA patients presenting for surgery remain undiagnosed or untreated[3], contributing to a high rate of unexpected adverse airway outcome[4].

The various airway abnormalities represented by OSA include a large tongue, collapsible airway and crowding of the oropharyngeal structures, among others[5].

Accurate airway assessment should always be performed so as to provide appropriate planning and management of expected difficult intubation, but the common clinical screening tests (Mallampati score, inter-incisor distance, mento-hyoid distance, BMI, etc ) have shown low sensitivity and specificity with a limited predictive value, especially if only a single assessment method is used[6].

Ultrasonography could be a highly sensitive and specific tool for prediction of difficult intubation in OSA patients presented for elective surgery by measuring tongue base thickness, distance between lingual arteries, hyo-mental distance and condylar mobility.

Conditions

Difficult Intubation in Obstructive Sleep Apnea

Study Design

• Observational Model Type: COHORT
• Study Time Perspective: PROSPECTIVE

Eligibility Criteria

Inclusion Criteria

1. 21-60 years old

2. ASA I, II, or III

3. STOP-BANG scoring >3

Exclusion Criteria

• 1) Age <21 years old 2) patients with cervical spine injury, limited neck mobility, neck swelling 3) patients with lost incisor teeth 4) asymmetric mobility of the temporomandibular joint as in maxillofacial injuries/malignancies prior to surgery on the airway 5) pregnancy

• Minimum Eligible Age: 21 Years
• Maximum Eligible Age: 60 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Tanta University

OTHER

Sponsor Role: lead

Responsible Party

Amer Bahir Soliman

Amer Soliman

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Amer AB Soliman, Bachelor

Role: PRINCIPAL_INVESTIGATOR

Tanta university hospitals

Locations

Tanta University hospitals

Tanta, Gharbya, Egypt

Site Status: RECRUITING

Countries

Egypt

Central Contacts

Amer AB Soliman, bachelor

Role: CONTACT

amer.soliman0@gmail.com

0201094963127

Facility Contacts

Amer AB Soliman, bachelor

Role: primary

amer.soliman0@gmail.com

0201094963127

Other Identifiers

35152/12/21

Identifier Type: -

Identifier Source: org_study_id