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Validation of airway assessment parameter (Thyromental Height Test) for Predicting Difficulty in visualizing vocal cords while inserting endotracheal tube for general anaesthesia in Obstetric Patients

Validation of Thyromental Height test (TMHT) as a predictor of difficult laryngoscope in obstetric patients: a cross-sectional study - NIL

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2025/07/091744
Enrollment
40
Registered
2025-07-25
Start date
Unknown
Completion date
Unknown
Last updated
2025-08-18

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

Conditions

Health Condition 1: 1- Obstetrics

Interventions

Intervention1: NIL: NIL Intervention2: Nil: Nil Control Intervention1: NIL: NIL

Sponsors

UCMS and GTB Hospital
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: Consenting obstetric patients requiring general anaesthesia for caesarian or laparotomy who are beyond 20 weeks of gestation.

Exclusion criteria

Exclusion criteria: Following participants are excluded from the study- 1) Patients requiring Fibreoptic intubation 2) Patients with anticipated difficult airway with mouth opening less than 3 cms. 3) Any visible facial, oral or intraoral pathology. 4) Patients with limited neck extension. 5) Patients with cervical spine pathology.

Design outcomes

Primary

MeasureTime frame
To evaluate the sensitivity of TMHT as a predictor of difficult laryngoscopy in obstetric patients requiring general anaesthesiaTimepoint: After data collection from all participants of study—

Secondary

MeasureTime frame
1. To measure the sensitivity of MPG as a predictor of difficult laryngoscopy. 2. Comparison of TMHT versus MPG as predictors of difficult laryngoscopy in same population with respect to: sensitivity, specificity, PPV & NPV. 3. Comparison of sensitivity & specificity of TMHT & MPG as a predictor of difficult intubation. 4. Sensitivity, specificity, PPV & NPV of Thyromental Distance Test as a predictor of difficult laryngoscopy. 5. Sensitivity & specificity of TMD as a predictor of difficult intubation. 6. Prevalence of difficult laryngoscopy in obstetric patients in the current study.Timepoint: After data collection from all participants of study—

Countries

India

Contacts

Public ContactDr M Akanksha Rao

UCMS and GTB Hospital

rudoc@rediffmail.com9560678023

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Feb 4, 2026