FULL DETAILS (Read-only)  -> Click Here to Create PDF for Current Dataset of Trial
CTRI Number  CTRI/2025/04/084379 [Registered on: 08/04/2025] Trial Registered Prospectively
Last Modified On: 07/04/2025
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 Study Comparing Two Ultrasound-Guided Nerve Block Techniques to Manage Pain After Keyhole Gallbladder Surgery  
Scientific Title of Study   To Assess The Postoperative Analgesic Efficacy Of Ultrasound- Guided External Oblique Intercostal Fascial Plane Block Versus Subcostal Transversus Abdominis Plane Block In Laparoscopic Cholecystectomy Under General Anaesthesia. 
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 Merin Varghese 
Designation  Assistant Professor 
Affiliation  Department Of Anaesthesiology Dr Br Ambedkar Medical College And Hospital 
Address  Department Of Anaesthesiology Dr Br Ambedkar Medical College And Hospital K G Halli Bengaluru 560045 Karnataka India

Bangalore
KARNATAKA
560045
India 
Phone  8547502337  
Fax    
Email  merinvv@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Merin Varghese 
Designation  Assistant Professor 
Affiliation  Department Of Anaesthesiology Dr Br Ambedkar Medical College And Hospital 
Address  Department Of Anaesthesiology Dr Br Ambedkar Medical College And Hospital K G Halli Bengaluru 560045 Karnataka 560045 India

Bangalore
KARNATAKA
560045
India 
Phone  8547502337  
Fax    
Email  merinvv@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Merin Varghese  
Designation  Associate Professor  
Affiliation  Department Of Anaesthesiology Dr Br Ambedkar Medical College And Hospital  
Address  Department Of Anaesthesiology Dr Br Ambedkar Medical College And Hospital K G Halli Bengaluru 560045 Karnataka 560045 India
560045 KARNATAKA 560045 INDIA Bangalore KARNATAKA
Bangalore
KARNATAKA
560045
India 
Phone  8547502337  
Fax    
Email  merinvv@gmail.com  
 
Source of Monetary or Material Support  
Department Of Anaesthesiology Dr Br Ambedkar Medical College And Hospital  
 
Primary Sponsor  
Name  Department Of Anaesthesiology Dr Br Ambedkar Medical College And Hospital  
Address  Department Of Anaesthesiology Dr Br Ambedkar Medical College And Hospital K G Halli Bengaluru 560045 Karnataka 560045 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 Merin Varghese  Major OT complex  Department Of Anaesthesiology Dr Br Ambedkar Medical College And Hospital K G Halli Bengaluru 560045 Karnataka 560045 Karnataka 560045 India
Bangalore
KARNATAKA 
08547502337

merinvv@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional Ethical Committee  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: O00-O9A||Pregnancy, childbirth and the puerperium,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  Unilateral External Oblique Intercostal Fascial plane block  Ultrasound guided Unilateral External Oblique Intercostal Fascial plane block using 20 ml of 0.2% Ropivacaine and Dexamethasone 4mg. 
Comparator Agent  Unilateral Subcostal Transversus Abdominis Plane Block   Ultrasound guided unilateral subcostal Transversus Abdominis Plane block using 20 ml of 0.2% Ropivacaine and Dexamethasone 4 mg.  
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  65.00 Year(s)
Gender  Both 
Details  Patients posted for laparoscopic cholecystectomy requiring general anesthesia.
Patients between the ages of 18-65years.
Patients belonging to American Society of Anesthesiologists physical status (ASA- PS)
I, II .  
 
ExclusionCriteria 
Details  Patient with refusal of injection at the site of block.
Any other additional surgical interventions or conversion to open surgery
Patients with drug allergy or history of allergy to amide-type local anesthetics,
Patients with a history of narcotic drug use, chronic pain, narcotic substance or alcohol
abuse.
Patients with known severe heart, kidney, liver, life-threatening hematological diseases
Patients with psychiatric disorder 
 
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 
To assess the postoperative analgesic effect of External Oblique Intercostal Fascial Plane Block and Subcostal Transversus Abdominis Plane Block in Laparoscopic Cholecystectomy under general anaesthesia.
 
Every 2 hours for the first 24 hours post operative period  
 
Secondary Outcome  
Outcome  TimePoints 
To assess:
Post operative VAS score at 0,6,12,24 hours
Timing for the first rescue analgesia
Post operative 24 hours total analgesia consumption.
Patient satisfaction score in both groups.
Complications if any (postoperative nausea and vomiting, hematoma at the injection site, intravascular injection, hypertension, etc).
 
Every 2 hours for the first 24 hours post operative period  
 
Target Sample Size   Total Sample Size="42"
Sample Size from India="42" 
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 1 
Date of First Enrollment (India)   23/04/2025 
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  
Prospective, double-blinded, interventional trial comparing the analgesic efficacy of two regional anesthesia techniques—Unilateral External Oblique Intercostal Fascial Plane Block (EOIB) and Subcostal Transversus Abdominis Plane Block (TAPB)—in patients undergoing laparoscopic cholecystectomy under general anesthesia.The study aims to evaluate postoperative pain relief by assessing Visual Analogue Scale (VAS) scores at multiple time intervals (0, 6, 12, and 24 hours), the timing of first rescue analgesia, total 24-hour analgesic consumption, patient satisfaction, and any complications. A total of 42 patients will be randomly assigned to either EOIB or TAPB groups, receiving ultrasound-guided nerve blocks with 20 ml of 0.2% Ropivacaine and 4 mg of Dexamethasone post-surgery. The study’s hypothesis suggests that EOIB may provide superior analgesia due to its ability to block both anterior and lateral cutaneous branches of the intercostal nerves. Findings from this research could influence post-laparoscopic cholecystectomy pain management protocols by optimizing regional anesthesia techniques to minimize opioid use and enhance patient recovery.
 
Close