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CTRI Number  CTRI/2025/07/090598 [Registered on: 09/07/2025] Trial Registered Prospectively
Last Modified On: 05/07/2025
Post Graduate Thesis  No 
Type of Trial  Interventional 
Type of Study   Surgical/Anesthesia 
Study Design  Randomized, Parallel Group Trial 
Public Title of Study   Comparative evaluation of correct placement of endobronchial blocker (EZ-Blocker) vs. Double-Lumen Tube for patients requiring One-Lung ventilation When Inserted Without the aid of a bronchoscope 
Scientific Title of Study   EZ- blocker (Rusch) versus Robert Shaw double lumen tube: Efficacy of correct placement with blind insertion technique (without the use of fibre optic bronchoscope) to achieve appropriate one lung ventilation 
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 Davinder Jit Singh 
Designation  Assistant professor 
Affiliation  Command hospital southern command pune 
Address  Department of Anaesthesiology and Critical care,Fifth Floor Block-B5, Room 531, Command hospital southern command, Pune

Pune
MAHARASHTRA
411001
India 
Phone  8728055241  
Fax    
Email  davinderjit98@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Davinder Jit Singh 
Designation  Assistant professor 
Affiliation  Command hospital southern command pune 
Address  Department of Anesthesiology and Critical Care, Fifth floor, block B5, Room no 531, Command hospital southern command, Pune


MAHARASHTRA
411001
India 
Phone  8728055241  
Fax    
Email  davinderjit98@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Davinder Jit Singh 
Designation  Assistant professor 
Affiliation  Command hospital southern command pune 
Address  Department of Anaesthesiology and Critical care, Fifth Floor, Block B5, Room no 531,Command hospital southern command, Pune


MAHARASHTRA
411001
India 
Phone  8728055241  
Fax    
Email  davinderjit98@gmail.com  
 
Source of Monetary or Material Support  
Office of Director General Armed Forces Medical Services (DGAFMS), Ministry of Defence, 5th floor of A block, Defence Officers Complex,Africa Avenue,New Delhi, India Pincode 110023 
 
Primary Sponsor  
Name  Armed Forces Medical Services 
Address  Directorate general Armed Forces Medical Services (DGAFMS),5th Floor, A block,Defence Officers Complex, Africa Avenue, New Delhi, Pin 110023 
Type of Sponsor  Other [Army Medical Corps] 
 
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 
DAVINDER JIT SINGH  Armed Forces Medical College, Command Hospital Southern Command   Department of Anaesthesiology and Critical Care, 5th Floor, Block 3 to5,
Pune
MAHARASHTRA 
08728055241

davinderjit98@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
institutional ethics committee, Armed Forces College, Solapur Road Pune  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: J984||Other disorders of lung, (2) ICD-10 Condition: I278||Other specified pulmonary heart diseases,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  EZ endobronchial blocker  EZ endobronchial blocker will be placed with blind insertion technique, without use of fibre optic bronchoscope to achieve one lung ventilation. placement eill be finally confirmed with auscultation and fibreoptic bronchoscope. Time points- 1. Post insertion of the EZ blocker. 2- Post patient positioning, Hemodynamics will be monitored -timepoints- . T0 baseline, T1- post induction, T2- during laryngoscopy and intubation, T3 at 15 min post intubation  
Comparator Agent  robert shaw double lumen tube  robert shaw double lumen tube will be inserted under direct laryngoscopy and placement confirmed clinically and with fibre optic bronchoscope.Time points- 1. Post insertion of the EZ blocker. 2- Post patient positioning, Hemodynamics will be monitored -timepoints- . T0 baseline, T1- post induction, T2- during laryngoscopy and intubation, T3 at 15 min post intubation 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  60.00 Year(s)
Gender  Both 
Details  patients undergoing surgery requiring one lung ventilation 
 
ExclusionCriteria 
Details  1. patients with anticipated difficult airway
2. pre existing severe systemic disease (ASA 4 and above)
3. thoracic surgery within the last 4 weeks 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Sequentially numbered, sealed, opaque envelopes 
Blinding/Masking   Open Label 
Primary Outcome  
Outcome  TimePoints 
to assess success rate in correct placement of EZ blocker and double lumen tube, with blind insertion technique by comparing number of attempts, time taken and fibre optic bronchoscopy  Time points for correct placement post blind insertion a check bronchoscopy will be done at - 1. Post insertion of the EZ blocker. 2- Post patient positioning.
Hemodynamics will be monitored -timepoints- . T0 baseline, T1- post induction, T2- during laryngoscopy and intubation, T3 at 15 min post intubation 
 
Secondary Outcome  
Outcome  TimePoints 
to compare changes in heart rate, blood pressure and episodes of desaturation   baseline, during insertion and 15 min post insertion of device 
 
Target Sample Size   Total Sample Size="30"
Sample Size from India="30" 
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)   31/07/2025 
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 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 - YES
  1. What data in particular will be shared?
    Response - All of the individual participant data collected during the trial, after de-identification.

  2. What additional supporting information will be shared?
    Response -  Study Protocol
    Response -  Statistical Analysis Plan
    Response - Informed Consent Form
    Response - Clinical Study Report
    Response -  Analytic Code

  3. Who will be able to view these files?
    Response - Anyone

  4. For what types of analyses will this data be available?
    Response - Any purpose.

  5. By what mechanism will data be made available?
    Response - Proposals should be directed to [davinderjit98@gmail.com].

  6. For how long will this data be available start date provided 01-01-2027 and end date provided 01-01-2032?
    Response - Beginning 3 months and ending 5 years following article publication.

  7. Any URL or additional information regarding plan/policy for sharing IPD? 
    Additional Information - NIL
Brief Summary  

 Double lumen tubes(DLT) and bronchial blockers (BBs) have  traditionally been used for one lung ventilation. While insertion of DLT is technically difficult; BBs have been easier to use, but they require frequent repositioning. Blockers also cause less intubation related post-operative complications (sore thro at, hoarseness of voice) and negate the need to change the DLT to a single lumen tube at the end of surgery. Fibre optic bronchoscopy is recommended to confirm the correct placement; more so, for the DLT owing to its larger lumen. EZ blocker is a semi-rigid catheter with two distal extensions, inflatable balloons and anchors itself on the carina. It is hypothesised to be easier to introduce than DLT, even without an FOB aid. The aim of our study is to assess the safety and efficacy of inserting this novel blocker without use of FOB and compare it with DLT insertion with similar technique.

 
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