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CTRI Number  CTRI/2025/07/091708 [Registered on: 25/07/2025] Trial Registered Prospectively
Last Modified On: 24/07/2025
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Other (Specify) [NON-INVASIVE INTRA CRANIAL PRESSURE assessment]  
Study Design  Randomized, Parallel Group Trial 
Public Title of Study   Change in brain pressure during gallbladder resection- A study 
Scientific Title of Study   Comparison of non-invasive intracranial assessment during laproscopic cholecystectomy using the Budohoski equation versus Xing Wang equation  
Trial Acronym  NIL 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Sunil Sharma 
Designation  Resident 
Affiliation  Indira Gandhi Medical College 
Address  Department of Surgery, Indira Gandhi Medical College

Shimla
HIMACHAL PRADESH
171001
India 
Phone  7018388348  
Fax    
Email  neurocrticalcareneuroanesthes@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Kunal Kumar Sharma 
Designation  Assistant Professor 
Affiliation  INDIRA GANDHI MEDICAL COLLEGE 
Address  Neuroanesthesia cell, Department of Anesthesia Indira Gandhi Medical College

Shimla
HIMACHAL PRADESH
171001
India 
Phone  9945602747  
Fax    
Email  kunaal_kumar@yahoo.com  
 
Details of Contact Person
Public Query
 
Name  Sunil Sharma 
Designation  Resident 
Affiliation  Indira Gandhi Medical College 
Address  Department of Surgery, Indira Gandhi Medical College

Shimla
HIMACHAL PRADESH
171001
India 
Phone  7018388348  
Fax    
Email  neurocrticalcareneuroanesthes@gmail.com  
 
Source of Monetary or Material Support  
NIL 
 
Primary Sponsor  
Name  Indira Gandhi Medical College 
Address  Indira Gandhi Medical College, Ridge-Sanjauli Road, Shimla Himachal Pradesh, India 
Type of Sponsor  Government medical college 
 
Details of Secondary Sponsor  
Name  Address 
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 Sunil Sharma  Indira Gandhi Medical College  Operation theater 1 and 2, B- Block, Second floor, Department of Anesthesia, Indira Gandhi Medical College, Ridge-Sanjauli road, Shimla
Shimla
HIMACHAL PRADESH 
7018388348

neurocrticalcareneuroanesthes@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional Ethics Committee, Indira Gandhi Medical College, Shimla  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: K801||Calculus of gallbladder with othercholecystitis, (2) ICD-10 Condition: K802||Calculus of gallbladder without cholecystitis, (3) ICD-10 Condition: K811||Chronic cholecystitis,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  Budhoski equation  Intracranial pressure assessment in one study group will be done using Budhoski equation for which the data obtained from intraoperative transcranial color coded duplex sonography will be used at the specified time points in protocol 
Comparator Agent  Xing Wang equation   Intracranial pressure assessment in other study group will be done using Xing & Wang equation for which the data obtained from intraoperative optic nerve sheath diameter assessment will be used at the specified time points in protocol 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  65.00 Year(s)
Gender  Both 
Details  ASA physical status I and II
Body mass index less than 30
 
 
ExclusionCriteria 
Details  Known intracranial pathology or raised ICP
Ophthalmic disease affecting optic nerve
Carotid artery stenosis or vascular malformations
Poor acoustic windows for TCCD
Pregnancy
 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Sequentially numbered, sealed, opaque envelopes 
Blinding/Masking   Open Label 
Primary Outcome  
Outcome  TimePoints 
Comparison of mean estimated ICP between the two groups at each time point  Timepoint 1- After securing the airway, but prior to pneumoperitoneum
Timepoint 2- At 15 minutes after insufflation
Timepoint 3- 2 minutes after release of pneumoperitoneum
 
 
Secondary Outcome  
Outcome  TimePoints 
Correlation between TCCD-derived ICP and ONSD at each time point
 
Timepoint 1- After securing the airway, but prior to pneumoperitoneum
Timepoint 2- At 15 minutes after insufflation
Timepoint 3- 2 minutes after release of pneumoperitoneum
 
Time of emergence from anesthesia   After discontinuation of volatile agent uptil eye opening to verbal command 
Incidence of delayed emergence between the two groups  Will start from 15 minutes after stopping the anesthetics and administering the reversal agent from muscle relaxation 
 
Target Sample Size   Total Sample Size="52"
Sample Size from India="52" 
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 4 
Date of First Enrollment (India)   05/08/2025 
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 Yet Recruiting 
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   Primary objective
To compare intracranial pressure derived from Budohoski equation to that derived from Xing & Wang equation in patients undergoing laproscopic cholecystectomy

Secondary Objectives:

(i)                 To observe and compare the effect of different intra-peritoneal insufflation pressures on cerebral blood flow velocity and ICP

(ii)               To observe and compare the effect of different intra-peritoneal insufflation pressures on ONSD and ICP

(iii)             To observe and compare the effect of ICP elevation during pneumoperitoneum with post-operative emergence from anesthesia

 
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