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CTRI Number  CTRI/2025/08/093899 [Registered on: 29/08/2025] Trial Registered Prospectively
Last Modified On: 29/08/2025
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Surgical/Anesthesia 
Study Design  Randomized, Crossover Trial 
Public Title of Study   Comparison of Two Airway Techniques for Patients with Anticipated Difficult Ventilation: Traditional Face Mask vs. Tracheal Tube in Pharynx (TTIP) 
Scientific Title of Study   Comparison of the effectiveness of traditional mask ventilation technique with Tracheal Tube in Pharynx in patients having Anticipated difficult Ventilation: A prospective randomised Open-Label Crossover Trial 
Trial Acronym  NIL 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Dr Pallavi Kumari  
Designation  Post Graduate trainee Department of Anaesthesiology and Critical Care  
Affiliation  INDIRA GANDHI INSTITUTE OF MEDICAL SCIENCE  
Address  Department of Anaesthesia, First floor, Ward block, Indira Gandhi Institute Of Medical Sciences, Patna, Sheikhpura, Patna, BIHAR 800014 India
Kadamkuan Patna
Patna
BIHAR
800014
India 
Phone  7091653072  
Fax    
Email  pkm.official1908@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Annu Choudhary  
Designation  Assistant Professor  
Affiliation  INDIRA GANDHI INSTITUTE OF MEDICAL SCIENCES 
Address  Department of Anaesthesia, First floor, Ward block, Indira Gandhi Institute Of Medical Sciences, Patna, Sheikhpura, Patna, BIHAR 800014 India

Patna
BIHAR
800014
India 
Phone  07385161632  
Fax    
Email  anucdry@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Annu Choudhary  
Designation  Assistant Professor  
Affiliation  INDIRA GANDHI INSTITUTE OF MEDICAL SCIENCES 
Address  Department of Anaesthesia, First floor, Ward block, IGIMS, Patna, Sheikhpura, Patna, BIHAR 800014 India

Patna
BIHAR
800014
India 
Phone  07385161632  
Fax    
Email  anucdry@gmail.com  
 
Source of Monetary or Material Support  
Indira Gandhi Institute Of Medical Sciences Sheikhpura, Patna, Bihar 800014 India 
 
Primary Sponsor  
Name  Department of Anesthesia IGIMS 
Address  Department of Anaesthesia, First floor, Ward block, IGIMS, Patna, Sheikhpura, Patna, BIHAR 800014 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 
Dr Pallavi Kumari   Indira Gandhi Institute of Medical Sciences   Department of Anaesthesia, First floor, Ward block, IGIMS, Patna, Sheikhpura, Patna, BIHAR 800014 India
Patna
BIHAR 
7091653072

pkm.official1908@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Office of the Ethics Committee   Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: O||Medical and Surgical,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  Ventilation by Bag-mask (standard two-hand mask technique)  Dose- not applicable, procedure based trial Route-face mask applied over patient mouth and nose Frequency -single application during induction of anaesthesia Duration - ventilation for 90 seconds (roughly 18 breaths in Pressure Control Mode with same settings as interventional agent) 
Intervention  Ventilation by tracheal tube in pharynx   Dose - Not applicable (procedure based intervention) Route- oropharyngeal insertion of standard Tracheal Tube until tip reaches hypopharynx (tragus -incisor distance) Frequency: single application after induction of anaesthesia Duration - ventilation for 90 seconds (roughly 18 breaths in Pressure Control Mode with RR12 , I:E 1:2, PIP 20cm H2O no PEEP) 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  99.00 Year(s)
Gender  Both 
Details  Patient posted for elective surgery under general anaesthesia with endotracheal intubation and
Patients with anticipated difficult ventilation
 
 
ExclusionCriteria 
Details   
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   On-site computer system 
Blinding/Masking   Open Label 
Primary Outcome  
Outcome  TimePoints 
Comparison of expired tidal volume of ventilation with TTIP vs mask  90 seconds  
 
Secondary Outcome  
Outcome  TimePoints 
Comparison of ventilation parameters (PAP in cmH2O, end-tidal CO2 (mm Hg), inspired tidal volume, TV I (ml), expired tidal volume TV e (ml) between the two Ventilation strategies in each subgroup of difficult mask ventilation.
 
90 seconds  
 
Target Sample Size   Total Sample Size="148"
Sample Size from India="148" 
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)   15/09/2025 
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 Applicable 
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 study is a prospective, randomized, open-label crossover trial comparing the effectiveness of traditional mask ventilation with the tracheal tube in pharynx (TTIP) technique in patients with anticipated difficult mask ventilation. The primary objective is to compare expired tidal volumes achieved by both methods, while secondary outcomes include other ventilation parameters, success rate, order of effectiveness, and adverse events. A total of 148 adult patients undergoing elective surgery under general anaesthesia will be enrolled, selected based on predictors like obesity, beard, edentulism, elderly age, and snoring. Following standard induction with fentanyl, propofol, and rocuronium, patients will be ventilated using both methods in a randomized sequence. TTIP involves blind insertion of an endotracheal tube into the pharynx to bypass common causes of upper airway obstruction. The study aims to determine whether TTIP can be a reliable alternative to mask ventilation in managing anticipated difficult airways.


 
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