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CTRI Number  CTRI/2024/03/064173 [Registered on: 15/03/2024] Trial Registered Prospectively
Last Modified On: 12/03/2024
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Drug 
Study Design  Randomized, Parallel Group Trial 
Public Title of Study   A clinical study comparing the modified para vertebral block at the retrolaminar site versus the inter fascial block deep to the erector spinae muscles using ultrasonography for post operative pain relief in patients undergoing percutaneous nephrolithotomy. 
Scientific Title of Study   Ultrasound guided retrolaminar block versus ultrasound guided erector spinae plane block for post operative analgesia in percutaneous nephrolithotomy; a randomised comparative study. 
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 Birina Kakaty 
Designation  Post Graduate Trainee 
Affiliation  Gauhati Medical College and Hospital 
Address  Department of Anaesthesiology and Critical Care Gauhati Medical College and Hospital, Guwahati Kamrup Metro - 781032, Assam

Kamrup
ASSAM
781032
India 
Phone  8638982580  
Fax    
Email  birinakakaty@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Faiza Ahmed Talukdar  
Designation  Professor and Head of the department 
Affiliation  Gauhati Medical College and Hospital 
Address  Department of Anaesthesiology and Critical Care Gauhati Medical College and Hospital Guwahati Kamrup Metro - 781032 Assam

Kamrup
ASSAM
781032
India 
Phone  9864031429  
Fax    
Email  faizaahmedtalukdar@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Birina Kakaty 
Designation  Post Graduate Trainee 
Affiliation  Gauhati Medical College and Hospital 
Address  Department of Anaesthesiology and Critical Care Gauhati Medical College and Hospital Guwahati Kamrup Metro - 781032 Assam

Kamrup
ASSAM
781032
India 
Phone  8638982580  
Fax    
Email  birinakakaty@gmail.com  
 
Source of Monetary or Material Support  
Gauhati Medical College and Hospital Kamrup Metro-781032 Assam  
 
Primary Sponsor  
Name  Dr Birina Kakaty 
Address  Department of Anaesthesiology and Critical Care Gauhati Medical College and Hospital Guwahati Kamrup Metro -781032 Assam 
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 Birina Kakaty   Gauhati Medical College and Hospital  Department of Anesthesiology and Critical Care , GMCH, Bhangagarh, Guwahati, Kamrup Metro -781032, Assam.
Kamrup
ASSAM 
8638982580

birinakakaty@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional Ethics Committee, Gauhati Medical College and Hospital, Guwahati  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 
Intervention  Erector spinae plane block using injection ropivacaine.  Dose - 20ml of 0.25% concentration. Route of administration - Inter fascial plane deep to erector spinae muscle using ultrasonography. Total duration of analgesia - Time from injection of the drug to the patients first request for rescue analgesia.  
Comparator Agent  Retrolaminar block using injection ropivacaine.  Dose - 20ml of 0.25% concentration. Route of administration - Inter fascial plane at the retro laminar site using ultrasonography. Total duration of analgesia - Time from injection of the drug to the patients first request for rescue analgesia.  
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  65.00 Year(s)
Gender  Both 
Details  American Society of Anaesthesiology Physical Status 1, 2 and 3

Scheduled for elective percutaneous nephrolithomy under general anaesthesia  
 
ExclusionCriteria 
Details  1. Patients not willing to give consent
2. Allergy to the study drugs.
3. Infection at the site of the block.
4. Cardiovascular diseases
5. Chronic obstructive pulmonary disease.
6. Other major systemic illness.
7. Patient having history of substance abuse
8. Patient with delirium and on antipsychotic medication.
9. Disorder of coagulation.
10. Patients having chronic pain and on chronic analgesic medications.
 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Sequentially numbered, sealed, opaque envelopes 
Blinding/Masking   Participant and Investigator Blinded 
Primary Outcome  
Outcome  TimePoints 
To compare the total duration of analgesia.   Time from injection of the drug to the patients first request for rescue analgesia or NRS score more than 4, between the two groups.  
 
Secondary Outcome  
Outcome  TimePoints 
1.To compare the pain NRS scores at rest & during cough postoperatively after extubating between the two groups.
2.To calculate the total analgesic requirement in first 24hours between the two groups.
3.To compare any complications between the two groups.  
Outcome will be assessed at the following time intervals at rest & on coughing.
0 hour, 30 minutes , 1 hour , 2 hours , 4 hours, 6hours, 8 hours , 16 hours & 24 hours.  
 
Target Sample Size   Total Sample Size="80"
Sample Size from India="80" 
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 3/ Phase 4 
Date of First Enrollment (India)   25/03/2024 
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  
This study will be a prospective randomised, double blinded, parallel group, single hospital, comparative study comparing the effects of ultrasound guided erector spinae plabe block versus ultrasound guided retrolaminar block on post operative analgesia in patients undergoing percutaneous nephrolithotomy. The null hypothesis of our study is that there is no difference in the duration of analgesia after erector spinae plane block and retrolaminar block in patients undergoing percutaneous nephrolithotomy. 

AIM: To compare the analgesia after ultrasound guided unilateral retrolaminar block with ultrasound guided unilateral erector spinae plane block in patients undergoing percutaneous nephrolithotomy.
PRIMARY OBJECTIVE: To compare the duration of analgesia , that is, the time from injection of the drug administration to the patients first request for rescue analgesia or NRS score > 4, between two groups. 
SECONDARY OBJECTIVE
1. To compare the pain NRS scores at rest and during cough postoperatively after extubating, between two groups. 
2. To calculate the total analgesic requirement in first 24hours between two groups. 
3. To compare any complications, like , post operative nausea and vomiting, post operative shivering, pneumothorax and any other between the two groups.

REFERENCES
1.Role of Erector Spine Plane Block for Postoperative Analgesia in Patients Undergoing Percutaneous Nephrolithotomy Bhatia R, Asthana V, Sarpal R, Bindal K - MAMC J Med Sci (mamcjms.in) 
2.Comparison of erector spinae plane block and local anaesthetic infiltration of the incision site for postoperative analgesia in percutaneous nephrolithotomy – A randomised parallel-group study - PMC (nih.gov) 
3.Craig DB. Post-operative recovery of pulmonary function. Anesth Anal 1981;60:46 -52. 
4.Comparison of Clinical Efficacy and Anatomical Investigation between Retrolaminar Block and Erector Spinae Plane Block (hindawi.com) 
5.Effects of erector spinae plane block and retrolaminar block on analgesia for multiple rib fractures: a randomized, double-blinded clinical trial – ScienceDirect 
6.Safety and effectiveness of ultrasound-guided RLB and ESPB | JPR (dovepress.com) 
7.International Journal of Medical Science in Clinical Research and Review (ijmscrr.in) 
8. Kerai S, Saxena KN, Taneja B. : What is new? Indian J Anaesth. 2017;61:200-14 
9.Erector Spinae Plane Block - StatPearls - NCBI Bookshelf (nih.gov) 
10. The ultrasound-guided retrolaminar block - PubMed (nih.gov)
 
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