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CTRI Number  CTRI/2025/04/085880 [Registered on: 29/04/2025] Trial Registered Prospectively
Last Modified On: 25/04/2025
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Surgical/Anesthesia 
Study Design  Randomized, Parallel Group, Active Controlled Trial 
Public Title of Study   A comparison of how quickly patients wake up after stopping of sevoflurane anaesthesia when different amount of fresh gas flow (4l/min and 0.8l/min ) used during waking up phase , while the lower gas flow is used during maintenance phase of anaesthesia 
Scientific Title of Study   Comparison The Emergence Time After Discontinuation Of Sevoflurane With Fresg Gas Flo w 4L/min and 0.8L/min During Emergence While in Maintanence Phase The Fresh Gas Flow is kept at 0.8L/min  
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. Madhavi Chaudhari 
Designation  PROFESSOR, DEPARTMENT OF ANAESTHESIOLOGY 
Affiliation  PRAMUKH SWAMI MEDICAL COLLEGE,BHAIKAKA UNIVERSITY 
Address  Department of Anaesthesiology, H M Patel Centre for Medical Care and Education, Karamsad, Anand Gujarat Anand Gujarat 388325 India

Anand
GUJARAT
388325
India 
Phone  9427084963  
Fax    
Email  madhavic@charutarhealth.org  
 
Details of Contact Person
Scientific Query
 
Name  Dr Shelvi Patel 
Designation  Resident 
Affiliation  PRAMUKH SWAMI MEDICAL COLLEGE, BHAI KAKA UNIVERSITY 
Address  Department of Anaesthesiology, H M Patel Centre for Medical Care and Education, Karamsad, Anand, Gujarat 388325 India

Anand
GUJARAT
388325
India 
Phone  9033272205  
Fax    
Email  shelvipatel0@gmail.com  
 
Details of Contact Person
Public Query
 
Name  DR SHELVI PATEL 
Designation  RESIDENT 
Affiliation  PRAMUKH SWAMI MEDICAL COLLEGE, BHAI KAKA UNIVERSITY 
Address  Department of Anaesthesiology, H M Patel Centre for Medical Care and Education, Karamsad, Anand, Gujarat 388325 India

Anand
GUJARAT
388325
India 
Phone  9033272205  
Fax    
Email  shelvipatel0@gmail.com  
 
Source of Monetary or Material Support  
Shree Krishna Hospital , Karamsad, Anand, Gujarat 388325 India  
 
Primary Sponsor  
Name  SHREE KRISHNA HOSPITAL 
Address  Shree Krishna Hospital , Karamsad, Anand, Gujarat 388325 India 
Type of Sponsor  Private medical college 
 
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 Madhavi Chaudhari  Pramukh Swami Medical College  Department of Anesthesiology, Pramukh Swami Medical College
Anand
GUJARAT 
9427084963

madhavic@charutarhealth.org 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
INSTITUTIONAL ETHICS COMMITEE-2  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: K929||Disease of digestive system, unspecified,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  Sevoflurane  FGF will be continued at 0.8L/min during emergence and sevoflurane will be discontinued 20 minutes prior to last skin stitch at the end of surgery and time of discontinuation till the patient’s spontaneous movement , eye opening and time of extubation will be noted .Dose according to MAC value of sevoflurane ( MAC value of sevoflurane ) , frequency- once , route of administration ; inhalation , total duration ; depends on the duration of surgery  
Intervention  Sevoflurane  FGF will be increased to 4L/min and sevoflurane will be discontinued at the last skin stitch at the end of surgery and time of discontinuation of sevoflurane , time of patient’s spontaneous movement , eye opening and time of extubation is noted . Dose according to MAC value of sevoflurane ( MAC value of sevoflurane ) , frequency- once , route of administration ; inhalation , total duration ; depends on the duration of surgery  
 
Inclusion Criteria  
Age From  19.00 Year(s)
Age To  75.00 Year(s)
Gender  Both 
Details  Patient undergoing surgery under General Anaesthesia with surgery hour more than 1 hour and using cuffed Endotracheal Tube. Patient with ASA status I, II and III. Patient weight between 30 to 80 kgs 
 
ExclusionCriteria 
Details  1.Patients refusing in taking part in the study
2.Neurological surgeries
3.Post operative patient who remain intubated or require elective ventilation
4.Patient of acute alcohol intoxication
5.Patient of diabetic keto acidosis

 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Sequentially numbered, sealed, opaque envelopes 
Blinding/Masking   Participant and Outcome Assessor Blinded 
Primary Outcome  
Outcome  TimePoints 
Primary objective: Comparing the emergence time after discontinuation of sevoflurane with fresh gas flow of 4l/min and 0.8l/min during emergence while in maintenance phase the fresh gas flow is kept at 0.8l/min




 
0 minutes to 20 minutes 
 
Secondary Outcome  
Outcome  TimePoints 
1. To compare time of eye opening after discontinuation of sevoflurane in both the groups
2. To compare time of spontaneous movement after discontinuation of sevoflurane in both the groups
 
0 minutes to 20 minutes 
1. To compare time of eye opening after discontinuation of sevoflurane in both the groups
2. To compare time of spontaneous movement after discontinuation of sevoflurane in both the groups
 
0 minutes to 20 minutes 
 
Target Sample Size   Total Sample Size="34"
Sample Size from India="34" 
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   Phase 2 
Date of First Enrollment (India)   08/05/2025 
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="0"
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  

After obtaining institutional ethics committee’s approval and written informed consent patients undergoing surgeries under general anaesthesia will be recruited in this study. Participants will be allotted in to two groups through balanced randomization. A computer software viz. WINPEPI will be used for the randomization. The treatment allocation will be kept in a sealed opaque envelopes and they will be opened after written informed consent of eligible participants. Preoperative assessment will be done and written informed consent will be obtained from all the patients who fulfil the inclusion criteria. Patients will be randomly assigned to any one of the two groups.


Group H - FGF will be increased to 4L/min and sevoflurane  will be discontinued at the last skin stitch at the end of surgery and time of discontinuation of    sevoflurane , time of patient’s spontaneous movement , eye opening and time of    extubation is noted .

 Group  S - FGF will be continued at 0.8L/min during emergence  and sevoflurane will be discontinued  20 minutes prior to last skin stitch  at the end of surgery and time of discontinuation till the patient’s spontaneous movement , eye opening and time of extubation will be noted  .

Method of assessment:

Variables to be assessed after discontinuation of sevoflurane

·         Time of eye opening(min)

·         Time of spontaneous movement (min)

·         Time of extubation (min)

·         End tidal concentration of sevoflurane  at various time –

1)      At sevoflurane discontinuation

2)      At eye opening

3)      At spontaneous movement

4)      At extubation

·         Entropy at various time-

1)      At sevoflurane discontinuation

2)      At eye opening

3)      At spontaneous movement

4)      At extubation

 


 
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