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CTRI Number  CTRI/2024/08/072496 [Registered on: 14/08/2024] Trial Registered Prospectively
Last Modified On: 12/08/2024
Post Graduate Thesis  Yes 
Type of Trial  Observational 
Type of Study   Cohort Study 
Study Design  Other 
Public Title of Study   Comparing the role of airway parameters with ultrasound scanning based respiratory measurements in predicting and overcoming breathing machine(ventilator) support in seriously ill patients in ICU 
Scientific Title of Study   Comparison of airway occlusion pressure with ultrasound based respiratory indices to predict weaning in critically ill patients A prospective observational 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  Lahareesh B L 
Designation  Senior Resident, DM Critical Care Medicine 
Affiliation  AIIMS, New Delhi 
Address  Room no 5013, 5th floor, Teaching block, Department of Anaesthesiology, Pain Medicine and Critical Care, AIIMS, New Delhi

New Delhi
DELHI
110029
India 
Phone  9112082723  
Fax    
Email  lahareeshbl@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Jyotsna Punj 
Designation  Professor, Department of Anaesthesiology, Pain Medicine and Critical Care 
Affiliation  AIIMS, New Delhi 
Address  Room no 5016, 5th floor, Teaching block, Department of Anaesthesiology, Pain Medicine and Critical Care, AIIMS, New Delhi

New Delhi
DELHI
110029
India 
Phone  9810191116  
Fax    
Email  jyotsna_punj@yahoo.com  
 
Details of Contact Person
Public Query
 
Name  Lahareesh B L 
Designation  Senior Resident, DM Critical Care Medicine 
Affiliation  AIIMS, New Delhi 
Address  Room no 5013, 5th floor, Teaching block, Department of Anaesthesiology, Pain Medicine and Critical Care, AIIMS, New Delhi

New Delhi
DELHI
110029
India 
Phone  9112082723  
Fax    
Email  lahareeshbl@gmail.com  
 
Source of Monetary or Material Support  
All India Institute of Medical Sciences, Sri Aurobindo Marg, Ansari East, New Delhi, Pin 110029, INDIA 
 
Primary Sponsor  
Name  All India Institute of Medical Sciences New Delhi 
Address  Sri Aurobindo Marg, Ansari Nagar East, New Delhi, Pin code 110029, 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 Lahareesh B L  ALL INDIA INSTITITUTE OF MEDICAL SCIENCES  AB8 ICU, 8TH FLOOR, WARD BLOCK, Department of Anaesthesiology, Pain Medicine and Critical Care, AIIMS
New Delhi
DELHI 
9112082723

lahareeshbl@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institute Ethics committee, AIIMS, NEW DELHI  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 
Intervention  NIL  NIL 
Comparator Agent  NIL  NIL 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  85.00 Year(s)
Gender  Both 
Details  1.Adults(age ≥ 18 years)
2.Mechanically ventilated for ≥ 48 hours due to medical or surgical reasons
3.Eligible for a SBT as decided by the intensivist, according to ACCP/ATS/ERS guidelines
 
 
ExclusionCriteria 
Details  1.Neuromuscular disorders affecting respiratory muscles
2.Contraindications for ultrasound examination (e.g., chest wounds, subcutaneous emphysema)
3.Refusal to participate in the study
4.Pregnancy
5.Morbid obesity
6.Neuromuscular blocking agents within 48 hours preceding diaphragm function assessment
7.Pneumothorax, pneumomediastinum, flail chest, or rib fractures
8.Patients primarily ventilated due to cardiac failure
9.Patients with diaphragmatic paralysis/injury on admission
 
 
Method of Generating Random Sequence   Not Applicable 
Method of Concealment   Not Applicable 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
To compare the area under the receiver operating characteristic curves(AUROCs) of airway occlusion pressure (P0.1), parasternal intercostal muscle thickening fraction/Diaphragm thickening fraction ratio (PMTF/DTF), and Diaphragm thickening fraction/Rapid shallow breathing index ratio (DTF/RSBI) to predict weaning outcome in critically ill mechanically ventilated patients.  48 hours after Mechanical ventilation 
 
Secondary Outcome  
Outcome  TimePoints 
1.To compare P0.1, PMTF/DTF ratio, and DTF/RSBI ratios on subsequent spontaneous breathing trials (SBTs)

2.To correlate PMTF and DTF on the day of discharge from the intensive care unit (ICU) with the number of days of mechanical ventilation and length of stay (LOS) in the ICU.
 
48 hours after Mechanical ventilation till discharge from ICU 
 
Target Sample Size   Total Sample Size="70"
Sample Size from India="70" 
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)   15/09/2024 
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="2"
Months="0"
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   The purpose of this study is to assess the usefulness of various ultrasound based respiratory indices with respiratory drive parameter in better predicting weaning of critically ill patients from mechanical ventilation. Patients are generally intubated and placed on mechanical ventilator when their own ventilatory and/or gas exchange capabilities are outstripped by the demands placed on them from a variety of diseases. As the conditions that warranted placing the patient on the ventilator stabilize and begin to resolve, attention is directed towards discontinuing the mechanical ventilation as quickly as possible. This process is termed “ventilator weaning”. The process allows patients to resume spontaneous breathing after a gradual reduction in ventilatory support and ultimately helps liberate them from mechanical ventilation. Current guidelines suggest several bedside indices to predict successful weaning and extubation. However, none of these indexes have been proven to be optimal in predicting weaning success. Careful clinical assessments are required to determine the patient’s readiness for weaning and subsequent discontinuation of ventilatory support and, ultimately, successful extubation. To facilitate this process in the study, our primary objective will be comparison of area under the receiver operating characteristic curves(AUROCs) of bedside based ultrasound weaning indices measuring parasternal intercostal muscle thickening fraction/diaphragm thickening fraction ratio(PMTF/DTF) and diaphragm thickening fraction/rapid shallow breathing index ratio (DTF/RSBI) and respiratory drive parameter including airway occlusion pressure (P0.1) in critically ill mechanically ventilated patients to predict weaning  outcomes and minimize extubation failure. The secondary objectives would be to compare P0.1, PMTF/DTF ratio and DTF/RSBI ratios on subsequent spontaneous breathing trials, and to correlate PMTF and DTF on the day of discharge from the ICU with the number of days of mechanical ventilation and length of stay . The ultrasound based respiratory indices have a good ability to predict weaning and extubation outcomes. So, by using these indices & parameters together they can serve as a valuable tool for precise clinical prediction of weaning outcomes 
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