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How Neck Size and Neck Tissue Thickness Can Help Predict Difficult Airway in Obese Patients

Correlation between neck circumference and ultrasound guided measurement of anterior neck soft tissue thickness in predicting difficult laryngoscopy in obese patients. - NIL

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2026/01/102159
Enrollment
180
Registered
2026-01-27
Start date
Unknown
Completion date
Unknown
Last updated
2026-02-02

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

Conditions

Health Condition 1: Z682- Body mass index (BMI) 20-29, adult

Interventions

Intervention1: Nil: Nil Intervention2: Nil: Nil Intervention3: Nil: Nil Intervention4: Nil: Nil

Sponsors

Manipal Hospital
Lead Sponsor
Manipal Hospital
Collaborator

Eligibility

Inclusion criteria

Inclusion criteria: 1. Patients scheduled for elective surgery under general endotracheal anaesthesia. 2. Age 18 years to 70 years. 3. ASA I- III patients. 4. BMI >/= 25 kg/m2.

Exclusion criteria

Exclusion criteria: 1. Patients with upper airway pathology, maxillofacial abnormality, cervical spine instability, trauma to the face or larynx and poor submandibular space compliance. 2. Patients posted for emergency surgeries and those requiring rapid sequence induction of anaesthesia. 3. Pregnant women and paediatric patients. 4. Inter-incisor distance < 3 cm. 5. Previous history of difficult laryngoscopy.

Design outcomes

Primary

MeasureTime frame
To find a correlation between neck circumference and USG guided anterior neck soft tissue thickness as a predictor of difficult laryngoscopy in patients with BMI /= 25 kg/m 2Timepoint: 6 months—

Secondary

MeasureTime frame
To measure anterior soft tissue neck thickness at the level of the hyoid, thyrohyoid membrane & anterior commissure of vocal cord in both neutral & sniffing position. To find correlation between above parameters & difficult intubation.Timepoint: 6months—

Countries

India

Contacts

Public ContactDr Gayatri Sasikumar

Manipal Hospital , Old Airport Road,Bangalore

gayatrisasikumar11@gmail.com9895991939

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Feb 7, 2026