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CTRI Number  CTRI/2025/03/082575 [Registered on: 18/03/2025] Trial Registered Prospectively
Last Modified On: 19/03/2025
Post Graduate Thesis  No 
Type of Trial  PMS 
Type of Study
Modification(s)  
Surgical/Anesthesia 
Study Design  Randomized, Parallel Group, Active Controlled Trial 
Public Title of Study   OPTIC NERVE SHEATH DIAMETER MEASUREMENT AS A INDICATOR FOR INTRACRANIAL PRESSURE CHANGES WITH TWO DIFFERENT INTUBATION TECHNIQUE IN PATIENTS UNDERGOING GENERAL ANAESTHESIA  
Scientific Title of Study   A comparative study of changes in optic nerve Sheath diameter following conventional laryngoscopy VS video Laryngoscopy in patients undergoing general anesthesia  
Trial Acronym  NIL 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Swathi kechchawar G  
Designation  Assistant Professor  
Affiliation  karpaga Vinayaga Institute of Medical Sciences and Research Centre  
Address  /Room no 4, first floor, operation theatre division, anaesthesia department, karpaga Vinayaga Institute of Medical Sciences and Research Centre
Room no 4, first floor, operation theatre division, anaesthesia department, karpaga Vinayaga Institute of Medical Sciences and Research Centre
Kancheepuram
TAMIL NADU
603308
India 
Phone  9632431973  
Fax    
Email  drswathigk414@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Swathi kechchawar G  
Designation  Assistant Professor  
Affiliation  Karpaga Vinayaga Institute of Medical Sciences and Research Centre  
Address  Room no 4, first floor, operation theatre division, anaesthesia department, karpaga Vinayaga Institute of Medical Sciences and Research
Room no 4, first floor, operation theatre division, anaesthesia department, karpaga Vinayaga Institute of Medical Sciences and Research
Kancheepuram
TAMIL NADU
603308
India 
Phone  9632431973  
Fax    
Email  drswathigk414@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Swathi kechchawar G  
Designation  Assistant Professor  
Affiliation  Karpaga Vinayaga Institute of Medical Sciences and Research Centre  
Address  Room no 4, first floor, operation theatre division, anaesthesia department, karpaga Vinayaga Institute of Medical Sciences and Research
Room no 4, first floor, operation theatre division, anaesthesia department, karpaga Vinayaga Institute of Medical Sciences and Research
Kancheepuram
TAMIL NADU
603308
India 
Phone  9632431973  
Fax    
Email  drswathigk414@gmail.com  
 
Source of Monetary or Material Support  
Karpaga Vinayaga Institute of Medical Sciences and Research Centre Chengalpattu, kanchipuram district Tamil Nadu Pin:603308 India 
 
Primary Sponsor  
Name  Karpaga Vinayaga Institute of Medical Sciences and Research Centre  
Address  Karpaga Vinayaga Institute of Medical Sciences and Research Centre PO GST road chinna kolambakkam, Chengalpattu, Tamil Nadu,India Pin:603308 
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 
Swathi kechchawar G   Karpaga Vinayaga Institute of Medical Sciences and Research Centre   Karpaga Vinayaga Institute of Medical Sciences and Research Centre, Chengalpattu, Tamil Nadu, India pincode:603308
Kancheepuram
TAMIL NADU 
9632431973

drswathigk414@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Karpaga Vinayaga Institute of Medical Sciences and Research Centre   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 
Comparator Agent  conventional laryngoscopy guided intubation   measurement of optic nerve sheath diameter following conventional laryngoscopy  
Intervention  Vedio larygoscopy guided intubation   Measurement of optic nerve sheath diameter following vedio larygoscopy  
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  60.00 Year(s)
Gender  Both 
Details  ASA 1 & 2
age from 18 years to 60 years those willing to participate  
 
ExclusionCriteria 
Details  Patient with difficult airway
previous history history of difficult airway
ASA 3 & 4 Patient

 
 
Method of Generating Random Sequence   Coin toss, Lottery, toss of dice, shuffling cards etc 
Method of Concealment   Case Record Numbers 
Blinding/Masking   Participant and Investigator Blinded 
Primary Outcome  
Outcome  TimePoints 
To assess the raise in intracranial pressure using optic nerve sheath diameter   Immediate after Intubation (0 min), 5 min, 10 min post-intubation  
 
Secondary Outcome  
Outcome  TimePoints 
To observe for hemodynamic variation with two different intubating techniques   Before intubation and 10 minutes post intubation  
 
Target Sample Size   Total Sample Size="100"
Sample Size from India="100" 
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   Post Marketing Surveillance 
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   Endotracheal intubation is known to increase sympathetic activity and in turn increase the intracranial pressure which can be endured in normal healthy patients but can pose a difficulty in patients with multiple comorbidities.To assess the changes in ICP we used ONSD as a surrogate marker in this study.In this study we are comparing optic nerve sheath diameter following intubation with video laryngoscopy verses conventional laryngoscopy.  
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