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CTRI Number  CTRI/2025/01/078982 [Registered on: 20/01/2025] Trial Registered Prospectively
Last Modified On: 27/12/2024
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Surgical/Anesthesia 
Study Design  Randomized, Parallel Group, Placebo Controlled Trial 
Public Title of Study   To compare efficacy of Laryngeal nerve block with, without laryngeal nerve block on throat soarness after Double lumen endotracheal intubation 
Scientific Title of Study   Comparison of Preoperative ultrasound -guided Internal Branch Block of Superior Laryngeal Nerve with placebo on Postoperative Sore Throat caused by Double Lumen Endotracheal Intubation: A Randomized placebo control 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  Dr Rishikesh 
Designation  Senior Resident 
Affiliation  Indira Gandhi Institute of Medical Sciences, Patna 
Address  Deptt. Of Anaesthesiology Cardiac division, Ward Block , near OT complex, IGIMS Seikhpura Patna

Patna
BIHAR
800014
India 
Phone  9734205184  
Fax    
Email  drrishikeshbmch@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr swati 
Designation  Professor 
Affiliation  Indira Gandhi Institute of Medical Sciences, Patna 
Address  Deptt. of Anaesthesiology Ward block , near OT complex, IGIMS Seikhpura Patna

Patna
BIHAR
800014
India 
Phone  9113463130  
Fax    
Email  deepakswat@yahoo.com  
 
Details of Contact Person
Public Query
 
Name  Dr Rishikesh 
Designation  Senior Resident 
Affiliation  Indira Gandhi Institute of Medical Sciences, Patna 
Address  Deptt. Of Anaesthesiology , Cardiac division, Ward block, near OT complex,IGIMS Seikhpura Patna


BIHAR
800014
India 
Phone  9734205184  
Fax    
Email  drrishikeshbmch@gmail.com  
 
Source of Monetary or Material Support  
Indira Gandhi Institute of edical Sciences,Department of anaesthesiology, cardiac division Ward Block ,near OT complex, Seikhpura Patna, India - 800014 
 
Primary Sponsor  
Name  Dr Rishikesh  
Address  Senior Resident Department of Anaesthesiology IGIMS, Patna-14 
Type of Sponsor  Other [Self] 
 
Details of Secondary Sponsor  
Name  Address 
Dr Alok Kumar Bharti  Associate Professsor ,Department of Anaesthesiology, IGIMS, Patna-14 
 
Countries of Recruitment     India  
Sites of Study  
No of Sites = 1  
Name of Principal Investigator  Name of Site  Site Address  Phone/Fax/Email 
Dr Rishikesh  Indira Gandhi Institute of Medical Sciences  Department of Anesthesiology, Cardiac division, Ward block, near OT complex, IGIMS Patna
Patna
BIHAR 
9734205184

drrishikeshbmch@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional Ethics Committee, Indira Gandhi Institute of Medical Sciences, Patna  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: J958||Other intraoperative and postprocedural complications and disorders of respiratory system, not elsewhere classified,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  Use of double lumen endobrochial tube (DLT)  Group C-No block will performed after DLT intubation 
Intervention  Use of double lumen endobronchial tube (DLT) with superior laryngeal nerve block  Group T- will receive USG guided Internal superior laryngeal nerve block (iSLN) with 2mL(0.2%) ropivacaine after intubation with DLT. Whole procedure will take approxiately half an hour 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  65.00 Year(s)
Gender  Both 
Details  All patients having age between 18-65 years with either sex, posted for thoracotomy requiring DLT insertion and duration of surgery of 2-3 hours will be performed USG guided internal superior laryngeal nerve block with 2 ml ( 0.2 %) ropivacaine after DLT insertion  
 
ExclusionCriteria 
Details  patient will be excluded fro study are surgery performed in the neck, mouth, or throat area, recent or ongoing upper respiratory infection, and existing preoperative sore throat cases.  
 
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 measure incidence of sore throat within 24hrs of surgery   To measure incidence of sore throat within 24hrs of surgery  
 
Secondary Outcome  
Outcome  TimePoints 
a)To assess severity of sore throat assessed at study time points (0.5, 2, 6 and 24 h)
b)To assess hemodynamic at regular time points
c)To assess any complication related to block
 
At 0.5 , 2 , 6 and 24 hours 
 
Target Sample Size   Total Sample Size="152"
Sample Size from India="152" 
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)   30/01/2025 
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="9"
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   A total of 152 patients between 18-65 year of age  with either sex posted for thoracic surgery requiring DLT insertion and duration of surgery of 2-3 hours  will be randomly allocated into either group T or group C.
Group T will receive a USG-guided internal superior laryngeal nerve block with 2 ml ( 0.2%) ropivacaine after Intubation with DLT while Group C will intubated with DLT without block. primary outcome of study will incidence of Post operative sore throat(POST) at 24 hours and secondary outcome will be severity of POST at 0.5 ,2, 6 and 24 hours ,hemodynamics at regular tie point and any associated adverse effect seen with intervention.
 
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