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CTRI Number  CTRI/2022/04/041810 [Registered on: 12/04/2022] Trial Registered Prospectively
Last Modified On: 12/04/2022
Post Graduate Thesis  Yes 
Type of Trial  Observational 
Type of Study   Cohort Study 
Study Design  Single Arm Study 
Public Title of Study   Using Abdominal expiratory muscle thickness to estimate successful withdrawal of mechanical ventilation in critically ill patients 
Scientific Title of Study   Abdominal Expiratory Muscle Thickness as a Predictor of Successful Weaning in Critically Ill Patients on Mechanical Ventilation: A Prospective Observational Study 
Trial Acronym   
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Dr Pooja C S 
Designation  Junior resident  
Affiliation  AIIMS Rishikesh 
Address  Department of Anaesthesiology, room No 026604, level 6, All India institute of medical sciences,Virbhadra Marg, Rishikesh

Dehradun
UTTARANCHAL
249203
India 
Phone  9110686619  
Fax    
Email  poojaiyengar007@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Gaurav Jain 
Designation  Additional professor 
Affiliation  All India institute of medical sciences, Rishikesh  
Address  Department of Anaesthesiology room No. 026604, level 6, All India institute of medical sciences,Virbhadra marg, Rishikesh

Dehradun
UTTARANCHAL
249203
India 
Phone  8808631209  
Fax    
Email  gauravhld@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Gaurav Jain 
Designation  Additional Professor 
Affiliation  All India institute of medical sciences, Rishikesh  
Address  Department of Anaesthesiology, room NO. 026604, level 6, All India institute of medical sciences, Virbhadra marg, Rishikesh

Dehradun
UTTARANCHAL
249203
India 
Phone  8808631209  
Fax    
Email  gauravhld@gmail.com  
 
Source of Monetary or Material Support  
Critical care unit, AIIMS Rishikesh 
 
Primary Sponsor  
Name  None 
Address  Not applicable 
Type of Sponsor  Other [Other ( not applicable)] 
 
Details of Secondary Sponsor  
Name  Address 
None  Not applicable  
 
Countries of Recruitment     India  
Sites of Study  
No of Sites = 1  
Name of Principal Investigator  Name of Site  Site Address  Phone/Fax/Email 
POOJA C S  All India institute of medical sciences, RISHIKESH  Critical care unit,room no 026604, Department of Anaesthesiology,AIIMS RISHIKESH
Dehradun
UTTARANCHAL 
9110686619

poojaiyengar007@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional ethical committe, AIIMS Rishikesh  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: R69||Illness, unspecified,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  Ultrasonography of abdominal expiratory muscles  Ultrasonographic assessment will be performed by using a B-mode Ultrasound device connected to 7 to 12 MHz linear probe and abdominal expiratory muscle thickness will be measured at 3 time points - on ICU admission, at 72hrs, just before Spontaneous breathing trial in ready to wean patients. 
Intervention  Ultrasonography of Diaphragm  Ultrasonographic assessment will be performed by using a B-mode Ultrasound device connected to 7 to 12 MHz linear probe and diaphragm thickness will be measured at 3 time points - on ICU admission, at 72hrs, just before Spontaneous breathing trial in ready to wean patients. 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  80.00 Year(s)
Gender  Both 
Details  1)Age>18 years.
2)Requiring invasive mechanical ventilation at ICU admission.
3)Expected duration of mechanical ventilation >72 hours.
4)Ready to undergo spontaneous breathing trial  
 
ExclusionCriteria 
Details  Past history of neuromuscular disorders
Mechanical ventilation>48 hrs within current hospital admission
Obesity (BMI>35)
Pregnant women
Abdominal wound at proposed location of ultrasound probe due to recent abdominal surgery 
 
Method of Generating Random Sequence   Not Applicable 
Method of Concealment   Not Applicable 
Blinding/Masking   Outcome Assessor Blinded 
Primary Outcome  
Outcome  TimePoints 
Abdominal expiratory muscle thickness as a predictor of successful weaning in ready to wean critically ill patients receiving mechanical ventilation.  At admission
At 72 hours
Just before Spontaneous breathing trial in ready to wean patients 
 
Secondary Outcome  
Outcome  TimePoints 
Correlation between change in expiratory muscle and diaphragmatic thickness in critically ill patients receiving mechanical ventilation.  At admission
At 72 hours
Just before Spontaneous breathing trial in ready to wean patients 
Factors predicting change in abdominal expiratory muscle thickness in critically ill mechanically ventilated patients.  During ICU stay 
To assess time dependent changes of expiratory muscle thickness in critically ill mechanically ventilated patients  At admission
At 72 hours
Just before Spontaneous breathing trial in ready to wean patients 
 
Target Sample Size   Total Sample Size="50"
Sample Size from India="50" 
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)   20/04/2022 
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="0"
Days="0" 
Recruitment Status of Trial (Global)   Not Applicable 
Recruitment Status of Trial (India)  Not Yet Recruiting 
Publication Details   Nil 
Individual Participant Data (IPD) Sharing Statement

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

Response - NO
Brief Summary   Weaning is the process of withdrawing mechanical ventilator support and transferring the work of breathing from ventilator to the patient. Failure of weaning from mechanical ventilation is a common problem faced in ICU, and several methods have been developed to predict weaning failure. The abdominal wall muscles are critical for protective reflexes such as coughing and thus may affect weaning in patients on mechanical ventilator. The aim of our study is to evaluate the thickness of abdominal expiratory muscles as a predictor of successful weaning in ready to wean critically ill patients on mechanical ventilation. 
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