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CTRI Number  CTRI/2023/05/052312 [Registered on: 04/05/2023] Trial Registered Prospectively
Last Modified On: 03/05/2023
Post Graduate Thesis  Yes 
Type of Trial  Observational 
Type of Study   prospective comparative 
Study Design  Other 
Public Title of Study   A study for comparison of endo tracheal tube size used in clinical practice to size calculated by conventional formulas and by ultrasonography scans in Indian paediatric patients. 
Scientific Title of Study   A prospective study for comparison of endo tracheal tube size used in clinical practice to endo tracheal tube size calculated by conventional formulas and sub glottic diameter from ultrasonography scans in Indian paediatric patients in a tertiary care centre.  
Trial Acronym   
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Rajashree Choudhury 
Designation  Primary DNB 
Affiliation  kokilaben dhirubhai ambani hospital and medical research centre. 
Address  Department of Anaesthesia,OT complex, Kokilaben Dhirubhai Ambani Hospital and medical research centre, Four Bungalows, Andheri West, Mumbai, India.

Mumbai
MAHARASHTRA
400053
India 
Phone  180030003333  
Fax  912243366777  
Email  m4majoni@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Hemlata Kapoor 
Designation  Consultant, dept of Anaesthesiology 
Affiliation  kokilaben dhirubhai ambani hospital and medical research centre. 
Address  Four Bungalows, Andheri West, Mumbai, India.

Mumbai
MAHARASHTRA
400053
India 
Phone  180030003333  
Fax  912243366777  
Email  h_sarinkapoor@hotmail.co.uk  
 
Details of Contact Person
Public Query
 
Name  Rajashree Choudhury 
Designation  Primary DNB 
Affiliation  kokilaben dhirubhai ambani hospital and medical research centre. 
Address  Department of Anaesthesia, OT Complex, Kokilaben Dhirubhai Ambani Hospital and Medical research centre,Four Bungalows, Andheri West, Mumbai, India.

Mumbai
MAHARASHTRA
400053
India 
Phone  180030003333  
Fax  912243366777  
Email  m4majoni@gmail.com  
 
Source of Monetary or Material Support  
kokilaben dhirubhai ambani hospital and medical research centre. 
 
Primary Sponsor  
Name  kokilaben dhirubhai ambani hospital and medical research centre 
Address  Four Bungalows, Andheri West, Mumbai, India. 
Type of Sponsor  Research institution and hospital 
 
Details of Secondary Sponsor  
Name  Address 
NIL  NIL 
 
Countries of Recruitment     India  
Sites of Study  
No of Sites = 1  
Name of Principal Investigator  Name of Site  Site Address  Phone/Fax/Email 
Rajashree choudhury  kokilaben dhirubhai ambani hospital and medical research centre  Department of Anaesthesia, OT complex, Four Bungalows. andheri west, Mumbai, India
Mumbai
MAHARASHTRA 
7896747374

m4majoni@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional Ethics Committee - Academics  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: Z408||Encounter for other prophylactic surgery,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  Nil  Nil 
 
Inclusion Criteria  
Age From  1.00 Year(s)
Age To  15.00 Year(s)
Gender  Both 
Details  paediatric population
posted for elective surgeries
consented for ultrasonography scans.
ASA 1and 2 patients. 
 
ExclusionCriteria 
Details  patient with history of allergy to ultrasound gel
patient in which mask ventilation could not be done.
patient with some other disease, cardiac anomalies, airway anomalies. 
 
Method of Generating Random Sequence   Not Applicable 
Method of Concealment   Not Applicable 
Blinding/Masking   Investigator Blinded 
Primary Outcome  
Outcome  TimePoints 
To compare the accuracy of Endo Tracheal tube size estimation in our Indian sub-
continent children using ultrasonography scan parameters and using classical formulas, the
latter being mainly derived from the western population. 
at baseline 
 
Secondary Outcome  
Outcome  TimePoints 
To assess the size of cuffed Endo tracheal Tube used in children undergoing surgeries
requiring endo tracheal intubation and compare it while evaluating the tube size using
tracheal diameter measured by ultrasonography study and by classical formulas in Indian
paediatric patients. 
at baseline 
 
Target Sample Size   Total Sample Size="100"
Sample Size from India="100" 
Final Enrollment numbers achieved (Total)= "0"
Final Enrollment numbers achieved (India)="100" 
Phase of Trial   N/A 
Date of First Enrollment (India)   10/05/2023 
Date of Study Completion (India) 15/11/2024 
Date of First Enrollment (Global)  Date Missing 
Date of Study Completion (Global) Date Missing 
Estimated Duration of Trial   Years="2"
Months="0"
Days="0" 
Recruitment Status of Trial (Global)   Not Applicable 
Recruitment Status of Trial (India)  Completed 
Publication Details   none yet 
Individual Participant Data (IPD) Sharing Statement

Will individual participant data (IPD) be shared publicly (including data dictionaries)?  

Response - NO
Brief Summary  
Radiological assessment of tracheal dimensions can be done by chest radiographs, ultrasound
scans. Out of all these, Ultra sound is a portable, easy to use, readily available, non-invasive
method of doing airway assessment with a high sensitivity. The diameter of the sub glottic
region calculated from ultrasonography of the anterior neck region, which is the narrowest
part of the trachea corresponds to the outer diameter of the endo tracheal tube.
In our hospital, pediatric patients undergoing elective surgeries can have their preoperative
ultra sound scans done, especially during the period of mask ventilation, when the patient is
in a neck extended, head flexed position. The majority of these surgeries include cochlear
implant surgeries, along with the other surgeries.
 
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