| CTRI Number |
CTRI/2026/02/103779 [Registered on: 12/02/2026] Trial Registered Prospectively |
| Last Modified On: |
11/02/2026 |
| Post Graduate Thesis |
Yes |
| Type of Trial |
Observational |
|
Type of Study
|
Cohort Study |
| Study Design |
Other |
|
Public Title of Study
|
Measuring the Distance from the Nose to the Windpipe During Bronchoscopy and Its Relation to Body Measurements in Adult Patients |
|
Scientific Title of Study
|
Anterior Nares to Carina Distance and Its Anthropometric Correlates: A Prospective, Observational Study in Adult Indian Patients Undergoing Diagnostic Flexible Bronchoscopy |
| Trial Acronym |
Nil |
|
Secondary IDs if Any
|
| Secondary ID |
Identifier |
| NIL |
NIL |
|
|
Details of Principal Investigator or overall Trial Coordinator (multi-center study)
|
| Name |
Tripti Maurya |
| Designation |
Junior Resident |
| Affiliation |
Dr RPGMC Kangra at Tanda Himachal Pradesh |
| Address |
Dept of Anesthesia
Dr RPGMC Kangra at Tanda Himachal Pradesh
Kangra
HIMACHAL PRADESH
176001
India
Dept of Anesthesia
Dr RPGMC Kangra at Tanda Himachal Pradesh
Kangra
HIMACHAL PRADESH
176001
India
Kangra
HIMACHAL PRADESH
176001
India |
| Phone |
8178360829 |
| Fax |
|
| Email |
tripti17071994@gmail.com |
|
Details of Contact Person
Scientific Query
|
| Name |
Tripti Maurya |
| Designation |
Junior Resident |
| Affiliation |
Dr RPGMC Kangra at Tanda Himachal Pradesh |
| Address |
Dept of Anesthesia
Dr RPGMC Kangra at Tanda Himachal Pradesh
Kangra
HIMACHAL PRADESH
176001
India
Dept of Anesthesia
Dr RPGMC Kangra at Tanda Himachal Pradesh
Kangra
HIMACHAL PRADESH
176001
India
Kangra
HIMACHAL PRADESH
176001
India |
| Phone |
8178360829 |
| Fax |
|
| Email |
tripti17071994@gmail.com |
|
Details of Contact Person
Public Query
|
| Name |
Tripti Maurya |
| Designation |
Junior Resident |
| Affiliation |
Dr RPGMC Kangra at Tanda Himachal Pradesh |
| Address |
Dept of Anesthesia
Dr RPGMC Kangra at Tanda Himachal Pradesh
Kangra
HIMACHAL PRADESH
176001
India
Dept of Anesthesia
Dr RPGMC Kangra at Tanda Himachal Pradesh
Kangra
HIMACHAL PRADESH
176001
India
Kangra
HIMACHAL PRADESH
176001
India |
| Phone |
8178360829 |
| Fax |
|
| Email |
tripti17071994@gmail.com |
|
|
Source of Monetary or Material Support
|
| DR. RAJENDRA PRSASD GOVT. MEDICAL COLLEGE KANGRA AT TANDA (Himachal Pradesh - 176001)
|
|
|
Primary Sponsor
|
| Name |
Dr RPGMC Kangra at Tanda |
| Address |
DR. RAJENDRA PRSASD GOVT. MEDICAL COLLEGE KANGRA AT TANDA (Himachal Pradesh - 176001) |
| 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 Shaym Bhandari |
Bronchoscopy room, pulmonary medicine department,Dr. Rajendra Prasad medical college, TANDA |
Dr. RPGMC, Tanda, Tehsil-Nagrota Bagwan, Distt-Kangra, Himachal Pradesh
Kangra
HIMACHAL PRADESH |
9805135129
dr.bhandari@yahoo.co.in |
|
|
Details of Ethics Committee
|
| No of Ethics Committees= 1 |
| Name of Committee |
Approval Status |
| Dr. Rajendra Prasad Government Medical College (Dr. RPGMC) Kangra at Tanda, Himachal Pradesh, India – 176 001 Institutional Ethics Committee (IEC) |
Approved |
|
|
Regulatory Clearance Status from DCGI
|
|
|
Health Condition / Problems Studied
|
| Health Type |
Condition |
| Patients |
(1) ICD-10 Condition: J989||Respiratory disorder, unspecified, |
|
|
Intervention / Comparator Agent
|
| Type |
Name |
Details |
| Intervention |
Nil |
Nil |
|
|
Inclusion Criteria
|
| Age From |
18.00 Year(s) |
| Age To |
75.00 Year(s) |
| Gender |
Both |
| Details |
Adults aged 18–75 years scheduled for elective diagnostic flexible bronchoscopy with ASA physical status I–III
Willing to provide informed written consent
|
|
| ExclusionCriteria |
| Details |
History of head and neck surgery or radiation
Anatomical abnormalities of the face neck or upper airway
Tracheal or major airway stenosis
Limited neck mobility or cervical spine disorders
Emergency Bronchoscopy or altered mental status
|
|
|
Method of Generating Random Sequence
|
Not Applicable |
|
Method of Concealment
|
Not Applicable |
|
Blinding/Masking
|
Not Applicable |
|
Primary Outcome
|
| Outcome |
TimePoints |
To determine the anterior nares to carina distance anterior nares to vocal cord and vocal cord to Carina in adult Indian patients undergoing diagnostic flexible bronchoscopy
|
18 months |
|
|
Secondary Outcome
|
| Outcome |
TimePoints |
To evaluate the correlation between anterior nares to carina distance & Sternal Angle to Anterior Nares distance in neutral position
|
18 months |
| To evaluate the correlation between anterior nares to carina distance & Sternal Angle to Anterior Nares distance in extended position |
18 months |
| To assess the correlation of anterior nares-to-carina distance with neck length & height |
18 months |
| To evaluate the correlation between anterior nares-to-carina distance & sternomental distance in neutral & extended position |
18 months |
|
|
Target Sample Size
|
Total Sample Size="100"
Sample Size from India="100"
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)
|
01/04/2026 |
| 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 prospective observational study aims to determine the anterior nares-to-carina distance, anterior nares-to-vocal cord distance, and vocal cord-to-carina distance in adult Indian patients undergoing diagnostic flexible bronchoscopy. Establishing these airway measurements may help improve accuracy in airway instrumentation and endotracheal tube placement in clinical practice.
In addition, the study seeks to evaluate the correlation between anterior nares-to-carina distance and external anatomical measurements including sternal angle-to-mentum distance (in neutral and extended positions), sternal angle-to-anterior nares distance (in neutral position), sternomental distance (in neutral and extended positions), neck length, and patient height.
Data will be collected during routine diagnostic flexible bronchoscopy after obtaining Institutional Ethics Committee approval. The findings may help develop predictive models for estimating airway length in adult Indian patients. |