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CTRI Number  CTRI/2023/04/051448 [Registered on: 10/04/2023] Trial Registered Prospectively
Last Modified On: 22/02/2024
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Surgical/Anesthesia 
Study Design  Randomized, Parallel Group, Multiple Arm Trial 
Public Title of Study   To compare the effects of intravenous dexmedetomidine and magnesium sulphate given in addition to general anaesthesia on perioperative haemodynamics in patients undergoing laparoscopic cholecystectomy  
Scientific Title of Study   Evaluate and compare the effects of intravenous dexmedetomidine and magnesium sulphate as adjunct to general anesthesia on perioperative haemodynamics variability in patient undergoing laparoscopic cholecystectomy 
Trial Acronym   
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Dr Sanjay Johar 
Designation  Professor  
Affiliation  Pt B. D. Sharma PGIMS, Rohtak  
Address  Department of Anaesthesiology and Critical Care , Pt. B. D. Sharma , PGIMS ,Rohtak

Rohtak
HARYANA
1224001
India 
Phone  9416050652  
Fax    
Email  sanjays321@yahoo.co.in  
 
Details of Contact Person
Scientific Query
 
Name  Dr Vaishali Gupta 
Designation  Junior Resident  
Affiliation  Pt B. D. Sharma PGIMS, Rohtak  
Address  Department of Anaesthesiology and Critical Care , Pt. B. D. Sharma , PGIMS ,Rohtak

Rohtak
HARYANA
124001
India 
Phone  9643709289  
Fax    
Email  Vaishali.guptaa4@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Vaishali Gupta  
Designation  Junior Resident  
Affiliation  Pt B. D. Sharma , PGIMS, Rohtak 
Address  Department of Anaesthesiology and Critical Care , Pt. B. D. Sharma , PGIMS ,Rohtak

Rohtak
HARYANA
124001
India 
Phone  9643709289  
Fax    
Email  Vaishali.guptaa4@gmail.com  
 
Source of Monetary or Material Support  
Institutional, PtB. D. SharmaPGIMS ,Rohtak, Haryana  
 
Primary Sponsor  
Name  Pt B. D. Sharma University Of Health Sciences, PGIMS,Rohtak, Haryana 
Address  Pt B. D. Sharma University Of Health Sciences, PGIMS,Rohtak, Haryana 
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 Vaishali Gupta  Pt B. D. Sharma , PGIMS  Department of anaesthesiology and Critical care , PGIMS, Rohtak
Rohtak
HARYANA 
9643709289

Vaishali.guptaa4@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional Ethics Committee Pt B. D. Sharma PGIMS Rohtak   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  I.v. Normal saline  After arrival of patient to OT baseline vitalswill be recorded. Bispectral index (BIS) electrodes and TOF-Watch SX will be connected. A 18 or 20G peripheral intravenous cannula will be inserted. The bolus dose of i.v. normal saline 0.9% in equal volume will be given over 15 min prior to induction.. Pre oxygenation will be done with 100% oxygen for 3 min, intravenous fentanyl at 2μg/kg will be given. Injection propofol in titrated doses will be given until BIS 40-50 will be attained. After assessing ventilation Injection atracurium 0.5mg/kg will be used to provide muscle relaxation. After achieving zero twitch on Train of four monitoring, laryngoscopy will be done using Macintosh blade and endotracheal intubation will be done using appropriate size cuffed endotracheal tube within 30 seconds in a single attempt. Controlled ventilation using 66% N2O with O2 and sevoflurane will be used to maintain balance anaesthesia. Sevoflurane will be titrated to maintain intraoperative BIS readings between 40 and 60. Intermittent bolus of injection atracurium (0.1mgkg-1) will be given whenever one twitch will appear on TOF stimulation. Pneumoperitoneum will be produced by insufflating CO2 into the peritoneal cavity at a rate of 2 L/min and the intra-abdominal pressure will be kept between 12 and 14 mmHg. The patients will be mechanically ventilated with a circular system to maintain an EtCO2 of 35 to 40 mm Hg. Fentanyl 0.5μg/kg i.v. will be given if intraoperative HR and MAP increases by 20% or more than baseline .After the completion of surgery, anaesthetic agents will be stopped. Reversal agent will be given after getting all four responses to TOF stimulation. The patients will be extubated after reversal of the residual neuromuscular blockade using Injection glycopyrrolate 0.01mg/kg and injection neostigmine 0.05mg/kg and return of protective airway reflexes. When the patient will be in stable condition they will be shifted to recovery and observed for 1 hour. 
Comparator Agent  Injection dexmedetomidine   After arrival of patient to OT baseline vitalswill be recorded. Bispectral index (BIS) electrodes and TOF-Watch SX will be connected. A 18 or 20G peripheral intravenous cannula will be inserted. The bolus dose of i.v. Dexmedetomidine in a dose 1μgkg-1 will be given over 15 min prior to induction.. Pre oxygenation will be done with 100% oxygen for 3 min, intravenous fentanyl at 2μg/kg will be given. Injection propofol in titrated doses will be given until BIS 40-50 will be attained. After assessing ventilation Injection atracurium 0.5mg/kg will be used to provide muscle relaxation. After achieving zero twitch on Train of four monitoring, laryngoscopy will be done using Macintosh blade and endotracheal intubation will be done using appropriate size cuffed endotracheal tube within 30 seconds in a single attempt. Controlled ventilation using 66% N2O with O2 and sevoflurane will be used to maintain balance anaesthesia. Sevoflurane will be titrated to maintain intraoperative BIS readings between 40 and 60. Intermittent bolus of injection atracurium (0.1mgkg-1) will be given whenever one twitch will appear on TOF stimulation. Pneumoperitoneum will be produced by insufflating CO2 into the peritoneal cavity at a rate of 2 L/min and the intra-abdominal pressure will be kept between 12 and 14 mmHg. The patients will be mechanically ventilated with a circular system to maintain an EtCO2 of 35 to 40 mm Hg. Fentanyl 0.5μg/kg i.v. will be given if intraoperative HR and MAP increases by 20% or more than baseline .After the completion of surgery, anaesthetic agents will be stopped. Reversal agent will be given after getting all four responses to TOF stimulation. The patients will be extubated after reversal of the residual neuromuscular blockade using Injection glycopyrrolate 0.01mg/kg and injection neostigmine 0.05mg/kg and return of protective airway reflexes. When the patient will be in stable condition they will be shifted to recovery and observed for 1 hour. 
Intervention  Injection Magnesium sulphate   After arrival of patient to OT baseline vitalswill be recorded. Bispectral index (BIS) electrodes and TOF-Watch SX will be connected. A 18 or 20G peripheral intravenous cannula will be inserted. The bolus dose of i.v. magnesium sulphate in a dose 30mgkg-1 will be given over 15 min prior to induction.. Pre oxygenation will be done with 100% oxygen for 3 min, intravenous fentanyl at 2μg/kg will be given. Injection propofol in titrated doses will be given until BIS 40-50 will be attained. After assessing ventilation Injection atracurium 0.5mg/kg will be used to provide muscle relaxation. After achieving zero twitch on Train of four monitoring, laryngoscopy will be done using Macintosh blade and endotracheal intubation will be done using appropriate size cuffed endotracheal tube within 30 seconds in a single attempt. Controlled ventilation using 66% N2O with O2 and sevoflurane will be used to maintain balance anaesthesia. Sevoflurane will be titrated to maintain intraoperative BIS readings between 40 and 60. Intermittent bolus of injection atracurium (0.1mgkg-1) will be given whenever one twitch will appear on TOF stimulation. Pneumoperitoneum will be produced by insufflating CO2 into the peritoneal cavity at a rate of 2 L/min and the intra-abdominal pressure will be kept between 12 and 14 mmHg. The patients will be mechanically ventilated with a circular system to maintain an EtCO2 of 35 to 40 mm Hg. Fentanyl 0.5μg/kg i.v. will be given if intraoperative HR and MAP increases by 20% or more than baseline .After the completion of surgery, anaesthetic agents will be stopped. Reversal agent will be given after getting all four responses to TOF stimulation. The patients will be extubated after reversal of the residual neuromuscular blockade using Injection glycopyrrolate 0.01mg/kg and injection neostigmine 0.05mg/kg and return of protective airway reflexes. When the patient will be in stable condition they will be shifted to recovery and observed for 1 hour. 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  65.00 Year(s)
Gender  Both 
Details  American society of Anesthesiology grade I and II between the age of 18-65 years, of either sex and posted for laparoscopic cholecystectomy under general anaesthesia  
 
ExclusionCriteria 
Details  Patients with major hepatic, renal and endocrine dysfunction, cardiovascular dysfunction; neuromuscular, neurological disorder, atrioventricular conduction disturbance, COPD, asthma, obstructive sleep apnea and haematological disorders.
Patients with difficult airway.
Patients with known allergy to dexmedetomidine or magnesium sulphate.
Pregnancy, obesity (body mass index>30 kg m-2), hypertension, diabetes mellitus, and
major systemic illness
Patients on treatment with calcium channel blockers, beta-blockers, alpha 2 adrenergic agonists or
opioid abuse
Any intraoperative surgical complication like prolonged surgery (duration more than
two hours) or conversion to open surgery,
Patient’s unwillingness to participate in the study 
 
Method of Generating Random Sequence   Permuted block randomization, fixed 
Method of Concealment   Sequentially numbered, sealed, opaque envelopes 
Blinding/Masking   Participant and Investigator Blinded 
Primary Outcome  
Outcome  TimePoints 
To compare the changes in HR & MAP during laryngoscopy and intubation, creation & release of pneumoperitoneum and extubation.  T0 baseline data
T1 following completion of study drug infusion
T2 1 minute after induction
T3 1 minute after intubation
T4 after peritoneal insufflation
T5 15 min after peritoneal insufflation T6 after peritoneal deflation
T7 1 min after extubation
T8 60 min after extubation 
 
Secondary Outcome  
Outcome  TimePoints 
To observe and compare intraoperative anaesthesia requirement, extubation time, time to first rescue analgesic requirement and postoperative sedation   Intraop requirement of total propofol, fentanyl, muscle relaxant and mean end tidal sevoflurane concentration ;Extubation time; Duration of surgery; Time to first rescue analgesia- time from extubation to time when pain reported by patient was ≥4 on visual analogue scale. Injection paracetamol l5mg/kg IV will be used ,If the patient doesn’t get relief in 15 min Injection diclofenac 1.5mg/kg will be given; Post op sedation level will be assessed at 1,15,30, 60 min using Ramsay sedation score
 
 
Target Sample Size   Total Sample Size="69"
Sample Size from India="69" 
Final Enrollment numbers achieved (Total)= "69"
Final Enrollment numbers achieved (India)="69" 
Phase of Trial   N/A 
Date of First Enrollment (India)   30/04/2023 
Date of Study Completion (India) Date Missing 
Date of First Enrollment (Global)  Date Missing 
Date of Study Completion (Global) 30/01/2024 
Estimated Duration of Trial   Years="1"
Months="0"
Days="0" 
Recruitment Status of Trial (Global)
Modification(s)  
Not Applicable 
Recruitment Status of Trial (India)  Completed 
Publication Details    
Individual Participant Data (IPD) Sharing Statement

Will individual participant data (IPD) be shared publicly (including data dictionaries)?  

Response - NO
Brief Summary   This study is to investigate the effect of dexmedetomidine and magnesium sulphate used as adjunct to general anaesthesia on perioperative haemodynamic response to laryngoscopy, intubation, pneumoperitoneum and extubation in patients undergoing laparoscopic cholecystectomy. 
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