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CTRI Number  CTRI/2025/03/082023 [Registered on: 10/03/2025] Trial Registered Prospectively
Last Modified On: 07/03/2025
Post Graduate Thesis  No 
Type of Trial  Observational 
Type of Study   Survey 
Study Design  Other 
Public Title of Study   Waste anaesthetic gas management and scavenging facilities in India- A survey 
Scientific Title of Study   Waste anesthestic gas management and scavenging facilities in India- A survey 
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 Silvy Anna Varughese 
Designation  Associate Professor  
Affiliation  PSG Institute of Medical Sciences and Research 
Address  Department of Anaesthesiology,PSG Institute of Medical Sciences and Research, Avinashi Road, peelamedu

Coimbatore
TAMIL NADU
641004
India 
Phone  9911514952  
Fax    
Email  silvyanna@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Silvy Anna Varughese 
Designation  Associate Professor  
Affiliation  PSG Institute of Medical Sciences and Research 
Address  Department of Anaesthesiology,PSG Institute of Medical Sciences and Research, Avinashi Road, peelamedu

Coimbatore
TAMIL NADU
641004
India 
Phone  9911514952  
Fax    
Email  silvyanna@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Silvy Anna Varughese 
Designation  Associate Professor  
Affiliation  PSG Institute of Medical Sciences and Research 
Address  Department of Anaesthesiology,PSG Institute of Medical Sciences and Research, Avinashi Road, peelamedu

Coimbatore
TAMIL NADU
641004
India 
Phone  9911514952  
Fax    
Email  silvyanna@gmail.com  
 
Source of Monetary or Material Support  
PSG Institute of Medical sciences and Research, avinashi Road, peelamedu, Coimbatore 641004 
 
Primary Sponsor  
Name  Dr Silvy Anna Varughese 
Address  Department of Anaesthesiology,PSG Institute of Medical Sciences and Research, Avinashi Road, peelamedu, C0imbatore 641004  
Type of Sponsor  Other [self] 
 
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 Silvya Anna Varughese  PSG Institute of Medical sciences and Research  Avinashi Road, Peelamedu, Coimbatore
Coimbatore
TAMIL NADU 
9911514952

silvyanna@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional Human Ethics Committee PSG Institute of Medical Sciences and Research   Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Healthy Human Volunteers  NIL 
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  NIL  NIL 
Comparator Agent  NIL  NIL 
 
Inclusion Criteria  
Age From  30.00 Year(s)
Age To  70.00 Year(s)
Gender  Both 
Details  1. Anesthesiologists who are currently involved in administering general anesthesia to
the patients.
2. Anesthesiologists including students who have minimum one year experience. 
 
ExclusionCriteria 
Details  1.Retired or non-practising Anesthesiologists
2. Anesthesiologists who are not being routinely exposed to waste anesthetic gases for
e.g. I.C.U set up, Pre – Anesthetic evaluation room. 
 
Method of Generating Random Sequence   Not Applicable 
Method of Concealment   Not Applicable 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
1.The primary outcome of this survey is to understand the available facilities for safe
disposal of W.A.G in operation theatres in various facilities in India.
 
6 months 
 
Secondary Outcome  
Outcome  TimePoints 
Secondary outcome will be to to understand the knowledge, attitudes & practices to
minimise exposure to inhalational anesthetic agents. 
6 months 
 
Target Sample Size   Total Sample Size="334"
Sample Size from India="334" 
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)   01/04/2025 
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="0"
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   Despite best practices exposure to anesthetic agents frequently exceed permissible limits.(Henderson KA, 1999; Irwin MG, 2009) In resource limited countries, this is even more common due to lack of facilities for monitor and control. There is further lack of guidelines which could ensure the implementation of such policies. We also require a medical surveillance programme to monitor the health of personnel routinely exposed to anesthetic agents. This survey is an effort in this direction and it also includes questions related to medical history of health care workers. 
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