| CTRI Number |
CTRI/2026/02/103214 [Registered on: 06/02/2026] Trial Registered Prospectively |
| Last Modified On: |
04/02/2026 |
| Post Graduate Thesis |
Yes |
| Type of Trial |
Observational |
|
Type of Study
|
Cohort Study |
| Study Design |
Other |
|
Public Title of Study
|
Comparing the efficacy and reliability of Thyromental Height Test with Conventional Airway Assessment Tools for Predicting Difficult Intubation |
|
Scientific Title of Study
|
Comparative Evaluation of Thyromental Height Test with Conventional Airway Assessment Tools for Predicting Difficult Intubation- A Prospective Observational blinded cohort study |
| Trial Acronym |
Nil |
|
Secondary IDs if Any
|
| Secondary ID |
Identifier |
| NIL |
NIL |
|
|
Details of Principal Investigator or overall Trial Coordinator (multi-center study)
|
| Name |
Tanya Chugh |
| Designation |
Junior Resident |
| Affiliation |
Dr RPGMC |
| Address |
Dept of Anaesthesia
Dr RPGMC Kangra at Tanda
Himachal Pradesh
Kangra
HIMACHAL PRADESH
176001
India |
| Phone |
9416198389 |
| Fax |
|
| Email |
tchugh46@gmail.com |
|
Details of Contact Person
Scientific Query
|
| Name |
Dr Shyam Bhandari |
| Designation |
Associate Professor |
| Affiliation |
Dr RPGMC |
| Address |
Dept of Anaesthesia
Dr RPGMC Kangra at Tanda
Himachal Pradesh
Kangra
HIMACHAL PRADESH
176001
India |
| Phone |
9805135129 |
| Fax |
|
| Email |
dr.bhandari@yahoo.co.in |
|
Details of Contact Person
Public Query
|
| Name |
Tanya Chugh |
| Designation |
Junior Resident |
| Affiliation |
Dr RPGMC |
| Address |
Dept of Anaesthesia
Dr RPGMC Kangra at Tanda
Himachal Pradesh
Kangra
HIMACHAL PRADESH
176001
India |
| Phone |
9416198389 |
| Fax |
|
| Email |
tchugh46@gmail.com |
|
|
Source of Monetary or Material Support
|
| Department of Anaesthesia
Dr RPGMC Kangra at Tanda , Himachal Pradesh , India
PIN code -176002 |
|
|
Primary Sponsor
|
| Name |
Dr RPGMC Kangra at Tanda |
| Address |
Department of Anaesthesia Dr RPGMC Kangra at tanda , Himachal Pradesh , India
PIN code -176002 |
| Type of Sponsor |
Government medical college |
|
|
Details of Secondary Sponsor
|
|
|
Countries of Recruitment
|
India |
|
Sites of Study
|
| No of Sites = 1 |
| Name of Principal
Investigator |
Name of Site |
Site Address |
Phone/Fax/Email |
| Dr Tanya Chugh |
Dr RPGMC Tanda at Kangra |
OT complex (second and third floor)
Department of Anaesthesia
Dr RPGMC Kangra at Tanda
Himachal Pradesh
176002
Himachal Pradesh
Kangra
HIMACHAL PRADESH |
9416198389
tchugh46@gmail.com |
|
|
Details of Ethics Committee
|
| No of Ethics Committees= 1 |
| Name of Committee |
Approval Status |
| Dr RPGMC IEC |
Approved |
|
|
Regulatory Clearance Status from DCGI
|
|
|
Health Condition / Problems Studied
|
| Health Type |
Condition |
| Patients |
(1) ICD-10 Condition: K802||Calculus of gallbladder without cholecystitis, (2) ICD-10 Condition: K315||Obstruction of duodenum, (3) ICD-10 Condition: H72||Perforation of tympanic membrane, (4) ICD-10 Condition: N63||Unspecified lump in breast, |
|
|
Intervention / Comparator Agent
|
| Type |
Name |
Details |
| Intervention |
Nil |
Nil |
|
|
Inclusion Criteria
|
| Age From |
18.00 Year(s) |
| Age To |
70.00 Year(s) |
| Gender |
Both |
| Details |
Adult patients (18-70 years) scheduled for elective surgery under general anaesthesia requiring orotracheal intubation with ASA physical status I-III with BMI between 18.5-34.9 kg/m2
Willing to provide written informed consent |
|
| ExclusionCriteria |
| Details |
Patient refusal
ASA IV
Known or anticipated difficult airway
Cervical spine instability or restricted neck movement
Reduced mouth opening |
|
|
Method of Generating Random Sequence
|
Not Applicable |
|
Method of Concealment
|
Not Applicable |
|
Blinding/Masking
|
Not Applicable |
|
Primary Outcome
|
| Outcome |
TimePoints |
To compare the predictive accuracy of Thyromental Height in predicting difficult airway using intubation difficulty scale (IDS)
To compare predictive accuracy of thyromental height with Thyromental distance, sternomental distance, sternomental displacement, using intubation difficulty scale (IDS) |
Baseline and 1 day (day of intubation) |
|
|
Secondary Outcome
|
| Outcome |
TimePoints |
| To compare predictive accuracy of Thyromental height with neck length, modified mallampati classification (MMPC) |
Baseline & 1 day (day of intubation) |
|
|
Target Sample Size
|
Total Sample Size="200"
Sample Size from India="200"
Final Enrollment numbers achieved (Total)= "Applicable only for Completed/Terminated trials"
Final Enrollment numbers achieved (India)="Applicable only for Completed/Terminated trials" |
|
Phase of Trial
|
N/A |
|
Date of First Enrollment (India)
|
26/03/2026 |
| Date of Study Completion (India) |
Applicable only for Completed/Terminated trials |
| Date of First Enrollment (Global) |
Date Missing |
| Date of Study Completion (Global) |
Applicable only for Completed/Terminated trials |
|
Estimated Duration of Trial
|
Years="1"
Months="6"
Days="0" |
|
Recruitment Status of Trial (Global)
|
Not Yet Recruiting |
| Recruitment Status of Trial (India) |
Not Yet Recruiting |
|
Publication Details
|
N/A |
|
Individual Participant Data (IPD) Sharing Statement
|
Will individual participant data (IPD) be shared publicly (including data dictionaries)?
Response - NO
|
|
Brief Summary
|
This would be an observational study for comparative evaluation of thyromental height test with the conventional airway parameters for predicting difficult intubation on the basis of CL grading and intubation difficulty scale to assess the reliability of TMH Test as an upcoming and more efficient parameter for predicting difficult intubation in ASA I-III patients |