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Voice recording and its analysis before operation in pre-anaesthetic check-up as a means to judge larynx aperture by using an instrument

Pre-operative Evaluation of Voice as a Predictor of Difficult Laryngoscopy

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2021/12/038447
Enrollment
220
Registered
2021-12-06
Start date
Unknown
Completion date
Unknown
Last updated
2022-02-21

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

Conditions

Health Condition 1: O- Medical and Surgical

Interventions

None listed

Sponsors

Maulana Azad Medical College and associated Hospital
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: 1. Patients undergoing elective surgery under general anaesthesia 2. ASA physical status 1 and 2

Exclusion criteria

Exclusion criteria: 1. Patients with significant oral or laryngeal pathologies who are unable to pronounce vowels 2. Patients having psychiatric issues or havig mental retardation 3. Patients requiring awake intubation

Design outcomes

Primary

MeasureTime frame
Correlation between preoperative voice formants: F1,F2,F3,F4,F5 and Cormack-Lehane gradingTimepoint: Baseline—

Secondary

MeasureTime frame
1. Correlation between preoperative voice formants and Modified Mallampati Test 2. Correlation of combination of preoperative voice formants and Modidfied Mallampati testTimepoint: Baseline—

Countries

India

Contacts

Public ContactAditi Yadav

Maulana Azad Medical College

kirtinath@gmail.com011-23238085

Outcome results

None listed

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