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CTRI Number  CTRI/2024/07/070082 [Registered on: 05/07/2024] Trial Registered Prospectively
Last Modified On: 08/07/2024
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Surgical/Anesthesia 
Study Design  Randomized, Parallel Group Trial 
Public Title of Study   Comparison of External Oblique plane block and Erector Spinae plane block in pain control after kidney removal surgery 
Scientific Title of Study   Comparison of analgesic efficacy between External Oblique plane block and Erector Spinae plane block in adult patients undergoing Laparoscopic Nephrectomy : A Randomised Controlled Trial. 
Trial Acronym  NIL 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Beenu Alex  
Designation  Junior resident 
Affiliation  AIIMS Patna 
Address  Department of Anaesthesiology, 5th floor OT complex, IPD building, AIIMS Patna, Phulwari Sharif, Patna, Bihar

Patna
BIHAR
801507
India 
Phone  7994331248  
Fax    
Email  beenualex@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Rajnish Kumar 
Designation  Additional Professor 
Affiliation  AIIMS Patna 
Address  Department of Anaesthesiology, 5th floor OT complex, IPD building, AIIMS Patna, Phulwari Sharif, Patna, Bihar

Patna
BIHAR
801507
India 
Phone  7783865337  
Fax    
Email  drrajnishkumar@aiimspatna.org  
 
Details of Contact Person
Public Query
 
Name  Dr Rajnish Kumar 
Designation  Additional Professor 
Affiliation  AIIMS Patna 
Address  Department of Anaesthesiology, 5th floor OT complex, IPD building, AIIMS Patna, Phulwari Sharif, Patna, Bihar

Patna
BIHAR
801507
India 
Phone  7783865337  
Fax    
Email  drrajnishkumar@aiimspatna.org  
 
Source of Monetary or Material Support  
All India Institute of Medical Sciences, Patna, Bihar, India, 801507 
 
Primary Sponsor  
Name  All India Institute of Medical Sciences, Patna 
Address  Department of Anaesthesiology, 5th floor OT complex, IPD building, AIIMS Patna 
Type of Sponsor  Government 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 Rajnish Kumar  All India Institute of Medical Sciences, Patna  Department of Anaesthesiology, 5th floor OT Complex, IPD Building, AIIMS Patna,
Patna
BIHAR 
7783865337

drrajnishkumar@aiimspatna.org 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional Ethics Committee, AIIMS Patna  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  Erector Spinae plane block  Single dose of 20 ml 0.2 % Ropivacaine given in Erector Spinae plane. 
Intervention  External Oblique plane block  Single dose of 20 ml 0.2 % Ropivacaine given in External oblique plane 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  75.00 Year(s)
Gender  Both 
Details  American Society of Anaesthesiologists PS I-III.
Adult patients undergoing Laparoscopic Nephrectomy.
Patients willing to give written informed consent.
 
 
ExclusionCriteria 
Details  History of allergy to the study drugs
Coagulopathy
Local infection
Body mass index more than 35
History of chronic pain
History of regular opioid use
Inability to comprehend NRS and PCA
Cases converted to open nephrectomy. 
 
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 compare 24 hour Fentanyl consumption post operatively in External Oblique Plane Block group and Erector Spinae Plane Block group.  24 hour post operatively 
 
Secondary Outcome  
Outcome  TimePoints 
To compare Intraoperative opioid consumption in both groups.  intra operatively 
Time to first rescue analgesia.   within 24 hours post operatively 
Number of doses attempted by patient for rescue analgesia  within 24 hours postoperatively 
Numerical Pain rating scale at 1hr, 2hr, 3hr, 6hrs 12 hrs and 24hrs.  within 24 hours post operatively 
 
Target Sample Size   Total Sample Size="72"
Sample Size from India="72" 
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
Modification(s)  
N/A 
Date of First Enrollment (India)   11/07/2024 
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="2"
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  
The laparoscopic method is frequently employed in nephrectomy over traditional open surgeries due to several benefits, including smaller incisions and quicker recovery. But there can be significant postoperative pain resulting from pneumoperitoneum and kidney manipulations during surgery. Such pain and stress reactions can exacerbate patients’ conditions, raise the risk of complications, and lengthen recovery periods. Perioperative analgesic agents, opioids in particular, are extensively employed. However,  they come with a diverse range of side effects, including nausea, vomiting, respiratory depression, delayed gastric emptying, ileus, and pruritus. The thoracic epidural block, regarded as the gold standard, is frequently linked to sympathetic blockade (resulting in hypotension). Additionally, it carries the risk of dura puncture and the risk of  hematoma and cord compression in individuals with coagulopathy. Hence, a regional analgesia technique such as the external oblique plane block or erector spinae plane block may be considered as viable alternatives, offering potential advantages in pain management while minimizing the associated risks and side effects observed with opioids and thoracic epidural blocks, and improving postoperative recovery quality. Here in this study we compare External Oblique plane block, which is a superficial block, which can be done in supine position, with easy identifiability even in obese patients , with needle insertion site far away from vascular bed and Erector Spinae plane block which is a paravertebral block, with potential epidural spread of local anaesthetic and sympathetic blockade and hemodynamic instability , in pain management after laparoscopic nephrectomy. If found effective , External Oblique plane block can be an alternative to Erector spinae plane block for pain management in laparoscopic nephrectomy.
 
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