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CTRI Number  CTRI/2020/06/026037 [Registered on: 22/06/2020] Trial Registered Prospectively
Last Modified On:
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 the effect of drug Dexmedetomidine with a placebo on the blood pressure and heart rate in patients undergoing Laparoscopic gall bladder removal surgery 
Scientific Title of Study   EFFECT OF DEXMEDETOMIDINE INFUSION ON PERIOPERATIVE HAEMODYNAMIC STABILITY IN PATIENTS UNDERGOING LAPAROSCOPIC CHOLECYSTECTOMY: A PLACEBO CONTROLLED, RANDOMISED BLINDED STUDY 
Trial Acronym   
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Dr Dikshita Goswami 
Designation  Postgraduate trainee student 
Affiliation  Gauahti Medical College and Hospital 
Address  Department of Anaesthesiology and Critical Care, Gauhati Medical College and Hospital, Bhangagarh, Guwahati, Kamrup
Bhangagarh, Guwahati, Kamrup, PIN 781032
Kamrup
ASSAM
781032
India 
Phone  7430953643  
Fax    
Email  dkshtgoswami@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Aldiona S Bhattacharyya 
Designation  Associate Professor 
Affiliation  Gauhati Medical College and Hospital 
Address  Department of Anaesthesiology and Critical Care, Gauhati Medical College and Hospital,Bhangagarh, Guwahati, Kamrup
Bhangagarh, Guwahati, Kamrup, PIN 781032
Kamrup
ASSAM
781032
India 
Phone  9101813237  
Fax    
Email  aldiona.shanpru1958@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Aldiona S Bhattacharyya 
Designation  Associate Professor 
Affiliation  Gauhati Medical College and Hospital 
Address  Department of Anaesthesiology and Critical Care, Gauhati Medical College and Hospital,Bhangagarh, Guwahati, Kamrup
Bhangagarh, Guwahati, Kamrup, PIN 781032

ASSAM
781032
India 
Phone  9101813237  
Fax    
Email  aldiona.shanpru1958@gmail.com  
 
Source of Monetary or Material Support  
Dr Dikshita Goswami 
 
Primary Sponsor  
Name  Dr Dikshita Goswami 
Address  Department of Anaesthesiology and Critical Care, Gauhati Medical College and Hospital, Bhangagarh, Guwahati 781032, Assam 
Type of Sponsor  Other [Self] 
 
Details of Secondary Sponsor  
Name  Address 
Dr Aldiona S Bhattacharyya  Department of Anaesthesiology and Critical Care, Gauhati Medical College and Hospital, Bhangagarh, Guwahati 781032, Assam 
 
Countries of Recruitment     India  
Sites of Study  
No of Sites = 1  
Name of Principal Investigator  Name of Site  Site Address  Phone/Fax/Email 
Dr Dikshita Goswami  Gauhati Medical College and Hospital  Bhangagarh, Guwahati781032, Kamrup
Kamrup
ASSAM 
7430953643

dkshtgoswami@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Ethics Committee of Gauhati Medical College and Hospital  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: R098||Other specified symptoms and signsinvolving the circulatory and respiratory systems,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  Dexmedetomidine hydrochloride  Intravenous infusion of Dexmedetomidine hydrochloride at the rate of 0.4 microgram per kilogram of body weight per hour in Sodium Chloride 0.9% via syringe pump starting from 10 minutes prior to induction of anaesthesia till the end of operation  
Comparator Agent  Placebo (Sodium Chloride 0.9%)  Intravenous infusion of Sodium Chloride 0.9% via syringe pump starting from 10 minutes prior to induction of anaesthesia till the end of operation. The volume prepared and rate of infusion will be the same as that of intervention agent. 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  60.00 Year(s)
Gender  Both 
Details  1) Patients with valid consent
2) American Society of Anaesthesiologists Physical Status 1 or 2
3) Undergoing elective laparoscopic cholecystectomy requiring endotracheal intubation
 
 
ExclusionCriteria 
Details  1) Patient refusal
2) Patients having known allergy either to Dexmedetomidine or any of the drugs to be administered
3) Patients with airway problems (anticipated/ unanticipated difficult airway)
4) Pregnant or lactating females
5) Patients with known history of substance abuse
6) Patients with hypotension, bradycardia or pre existing heart block 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Sequentially numbered, sealed, opaque envelopes 
Blinding/Masking   Participant, Investigator and Outcome Assessor Blinded 
Primary Outcome  
Outcome  TimePoints 
To evaluate the effect of Dexmedetomidine infusion on haemodynamic stability (Systolic and Diastolic Blood Pressure, Mean Arterial Pressure and Heart Rate) in response to the following events in patients undergoing laparoscopic cholecystectomy: laryngoscopy and endotracheal intubation, creation of pneumoperitoneum and extubation.  Before starting infusion, 10 minutes after starting infusion, 1 minute after laryngoscopy and intubation, after pneumoperitoneum at- 1 minute, 15 minutes, 30 minutes, 45 minutes, 60 minutes and 1 minute after extubation 
 
Secondary Outcome  
Outcome  TimePoints 
To observe the effects on level of sedation at the end of surgery  post operatively at 1 minute, 15 minutes, 30 minutes and 60 minutes after extubation 
To oberve the effects on analgesia in immediate post operative period  post operatively at 1 minute, 15 minutes, 30 minutes and 60 minutes after extubation 
To record other relevant observations, if any  From the start of infusion at 10 minutes prior to induction of anaesthesia till 60 minutes after extubation 
 
Target Sample Size   Total Sample Size="60"
Sample Size from India="60" 
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 4 
Date of First Enrollment (India)   23/07/2020 
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   It will be sent for publication in peer reviewed journal once the trial is over 
Individual Participant Data (IPD) Sharing Statement

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

Brief Summary  

In the current era, laparoscopic cholecystectomy is considered the gold standard of treatment for cholelithiasis due to the benefits of better postoperative pain profiles, lesser surgical wound complications and reduced hospital stay.[1]  Anaesthetic manoeuvres like direct laryngoscopy, tracheal intubation and extubation cause sympathetic stimulation. Moreover, the creation of pneumoperitoneum leads to an increase in plasma norepinephrine, epinephrine levels and plasma renin activity[2]. These changes lead to an increase in heart rate, blood pressure, systemic and pulmonary vascular resistance and reduced cardiac output[2]. The reverse Trendelenburg position required for the surgical procedure also leads to reduction in venous return thereby causing a further reduction in cardiac output[3]. The haemodynamic changes predispose the myocardium to ischaemia which may be life threatening in vulnerable patients[2]In the past, various drugs like opioid analgesics, benzodiazepines, beta blockers, calcium channel blockers have been used to attenuate this stress response. α2  adrenergic agonists are increasingly being used to reduce stress response  to anaesthesia and surgery for their analgesic, anxiolytic, sedative and sympatholytic properties[4,5]. Dexmedetomidine (an α2 agonist) is a commonly used drug which decreases sympathetic tone, arterial pressure and heart rate in a dose dependent manner and produces sedation without causing respiratory depression[3,4]

In this study, we intend to give intravenous infusion of Dexmedetomidine hydrochloride at the rate of 0.4 microgram per kilogram of body weight per hour in Sodium Chloride 0.9% starting from 10 minutes prior to induction of anaesthesia till the end of operation and compare it with intravenous infusion of Sodium Chloride 0.9% as placebo and observe the effects on haemodynamic stability following laryngoscopy and intubation, pneumoperitoneum and extubation. In this randomised controlled study, the null hypothesis that dexmedetomidine does not reduce heart rate and blood pressure in patients undergoing laparoscopic cholecystectomy would be investigated.

 

REFERENCES:

1) 1)   Samel SA, Patil BM, Nigalye N. Effect of Low Dose Dexmedetomidine Infusion on Hemodynamics in Patients Undergoing Laparoscopic Cholecystectomy: A Prospective Observational Study. Journal of Contemporary Medical Research. 2017;4(10):2069-74.

2)  2)  Manne GR, Upadhyay MR, Swadia VN. Effects of low dose dexmedetomidine infusion on haemodynamic stress response, sedation and post-operative analgesia requirement in patients undergoing laparoscopic cholecystectomy. Indian journal of anaesthesia. 2014 Nov;58(6):726.

 

3)  3)  Bhattacharjee DP, Nayek SK, Dawn S, Bandopadhyay G, Gupta K. Effects of dexmedetomidine on haemodynamics in patients undergoing laparoscopic cholecystectomy-A comparative study. Journal of Anaesthesiology Clinical Pharmacology. 2010 Jan 1;26(1):45.

 

4)  4)  Rachit B, Nanda HS, Mahesh K. Evaluation of Dexmedetomidine-0.5 mu g/kg and 1 mu g/kg in Blunting the Responses to Laryngoscopy and Intubation. INTERNATIONAL JOURNAL OF SCIENTIFIC STUDY. 2016 Feb 1;3(11):147-53.

5)   5)Ghodki PS, Thombre SK, Sardesai SP, Harnagle KD. Dexmedetomidine as an anesthetic adjuvant in laparoscopic surgery: An observational study using entropy monitoring. Journal of anaesthesiology, clinical pharmacology. 2012 Jul;28(3):334.


 
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