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CTRI Number  CTRI/2022/02/040001 [Registered on: 03/02/2022] Trial Registered Prospectively
Last Modified On: 05/09/2023
Post Graduate Thesis  Yes 
Type of Trial  Observational 
Type of Study   Follow Up Study 
Study Design  Single Arm Study 
Public Title of Study   assessment of gradual withdrawal from ventilator in neurosurgical patients 
Scientific Title of Study   Evaluation of predictors of successful weaning and extubation in neurosurgical patients 
Trial Acronym   
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Dr Vidya Sriram 
Designation  Senior Resident 
Affiliation  NIMHANS 
Address  Department of neuroanaesthesia and neurocritical care faculty building, Third floor Nimhans hospital
NIMHANS HOSPITAL
Bangalore
KARNATAKA
560004
India 
Phone  9820817922  
Fax    
Email  vidyasriram1803@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr V Bhadrinarayan 
Designation  Professor 
Affiliation  NIMHANS 
Address  Department of neuroanaesthesia and neurocritical care Faculty building Nimhans hospital
NIMHANS HOSPITAL
Bangalore
KARNATAKA
560029
India 
Phone  9448084257  
Fax    
Email  n_bhadri@yahoo.com  
 
Details of Contact Person
Public Query
 
Name  Dr Vidya Sriram 
Designation  Senior Resident 
Affiliation  National institute of mental health and neurosciences 
Address  Department of neuroanaesthesia and neurocritical care faculty building, Third floor c
National institute of mental health and neurosciences HOSPITAL bangalore 560029
Bangalore
KARNATAKA
560029
India 
Phone  9820817922  
Fax    
Email  vidyasriram1803@gmail.com  
 
Source of Monetary or Material Support  
NIMHANS hospital 
 
Primary Sponsor  
Name  NIMHANS Hospital 
Address  NIMHANS Hospital ,Hombegowda nagar Bangalore 
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 Vidya  ICU NIMHANS HOSPITAL  Surgical Icu ,Second floor Nimhans hospital
Bangalore
KARNATAKA 
9820817922

vidyasriram1803@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
NIMHANS ETHICS COMMITTEE  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: G00-G99||Diseases of the nervous system,  
 
Intervention / Comparator Agent  
Type  Name  Details 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  65.00 Year(s)
Gender  Both 
Details  All neurosurgical patients who are mechanically ventilated for more than 48 hours in ICU  
 
ExclusionCriteria 
Details  Leisons compressing the brainstem
Pregnant patients
Patients relative refusal
Patients on beta blockers or rate controlling drugs Patients with diaphragm dysfunction
Patients with severe left ventricular dysfunction
Patients with rib fractures or thoracotomy 
 
Method of Generating Random Sequence    
Method of Concealment    
Blinding/Masking    
Primary Outcome  
Outcome  TimePoints 
Successful weaning and extubation  1)At 48 hours of mechanical ventilation
2)At the beginning and end of the spontaneous breathing trial
 
 
Secondary Outcome  
Outcome  TimePoints 
Successful extubation  24 hours prior to extubation 
 
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)   10/02/2022 
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="2"
Months="0"
Days="0" 
Recruitment Status of Trial (Global)
Modification(s)  
Not Applicable 
Recruitment Status of Trial (India)  Open to Recruitment 
Publication Details   nil 
Individual Participant Data (IPD) Sharing Statement

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

Response - NO
Brief Summary   After taking a written informed consent, we plan to do a prospective study on patients who are intubated and mechanically ventilated in the ICU for more than 48 hours.
Discontinuation of mechanical ventilation /weaning will be attempted according to the clinical judgement of the treating physician.
Data will be collected at the following time points
1)At the end of 48 hours of mechanical ventilation
2)At the beginning of the first spontaneous breathing trial
3)24 hours prior to extubation
The following parameters will be recorded
1)Heart rate variability
2)Respiratory rate
3)PaO2/FiO2 ratio
4)Haemoglobin
5)Rapid shallow breathing index
6)Diaphragm excursion and Diaphragm thickness fraction





 
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