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CTRI Number  CTRI/2018/03/012630 [Registered on: 19/03/2018] Trial Registered Retrospectively
Last Modified On: 15/03/2018
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 study the effects of sedative drug- dexmedetomidine- during general anaesthesia for endoscopic pituitary surgery. 
Scientific Title of Study   The effect of intravenous dexmedetomidine on intraoperative surgical bleeding and haemodynamics during trans-sphenoidal pituitary surgery 
Trial Acronym   
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Preethy J Mathew 
Designation  Professor 
Affiliation  Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh 
Address  Department of Anaesthesia and Intensive Care,PGIMER

Chandigarh
CHANDIGARH
160012
India 
Phone  9417800203  
Fax    
Email  tjpreethy@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Preethy J Mathew 
Designation  Professor 
Affiliation  Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh 
Address  Department of Anaesthesia and Intensive Care,

Chandigarh
CHANDIGARH
160012
India 
Phone  9417800203  
Fax    
Email  tjpreethy@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Aparna Jain 
Designation  Junior Resident 
Affiliation  Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh 
Address  Department of Anaesthesia and Intensive Care,

Chandigarh
CHANDIGARH
160012
India 
Phone  09214540025  
Fax    
Email  jain.aprna@gmail.com  
 
Source of Monetary or Material Support  
Postgraduate Institute of Medical Education and Research (PGIMER) Sector 12, Chandigarh- 160012 
 
Primary Sponsor  
Name  PGIMER Chandigarh 
Address  Department of Anaesthesia and Intensive Care, PGIMER, Chandigarh 
Type of Sponsor  Research institution and hospital 
 
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 
Preethy J Mathew  PGIMER, Chandigarh  Department of Anaesthesia and Intensive Care, PGIMER, Chandigarh
Chandigarh
CHANDIGARH 
7087009530

tjpreethy@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
PGIMER thesis committee  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  Scheduled for trans-sphenoidal pituitary surgery,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  Dexmedetomidine Group  Patients in this group received i.v. dexmedetomidine 1 µg/kg over a 10-min period before induction of anesthesia and 0.5µg/kg/hr by continuous i.v. infusion during the procedure from the beginning of anaesthesia till the end of procedure. 
Comparator Agent  Placebo group  Patients in this group received normal saline as placebo for i.v. bolus and maintenance infusion from the beginning of anaesthesia till the end of the procedure 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  65.00 Year(s)
Gender  Both 
Details  40 ASA I-II patients between 18-65 years of age, scheduled for elective trans-sphenoidal pituitary surgery  
 
ExclusionCriteria 
Details  Patients with following conditions:
1.Decreased level of consciousness
2.Increased intracranial pressure
3.Risk of impending cerebral herniation 4.Anticipated elective postop ventilation
5.Co-existing intracranial lesions like aneurysms or arteriovenous malformations
6.Significant cardiovascular co-morbidity like unstable angina, recent myocardial infarction, coronary artery bypass surgery, refractory arrhythmias, severe hypertension, congestive heart failure,
7.Those with severe respiratory disease such as bronchial asthma
8.Those with body weight more than 130% of ideal body weight 
 
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 
Haemodynamic changes in mean arterial blood pressure and heart rate  During procedure-every 10 minutes 
 
Secondary Outcome  
Outcome  TimePoints 
Bleeding in surgical field  During procedure 
Isoflurane requirement  During procedure 
Recovery parameters  Immediate postop 
 
Target Sample Size   Total Sample Size="40"
Sample Size from India="40" 
Final Enrollment numbers achieved (Total)= "40"
Final Enrollment numbers achieved (India)="40" 
Phase of Trial   N/A 
Date of First Enrollment (India)   29/12/2010 
Date of Study Completion (India) 29/07/2011 
Date of First Enrollment (Global)  Date Missing 
Date of Study Completion (Global) Date Missing 
Estimated Duration of Trial   Years="1"
Months="0"
Days="0" 
Recruitment Status of Trial (Global)   Not Applicable 
Recruitment Status of Trial (India)  Completed 
Publication Details   None yet 
Individual Participant Data (IPD) Sharing Statement

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

Brief Summary  

A prospective randomized double blind study was conducted in 40 ASA I-II patients between 18-65 years of both sexes, undergoing elective trans-sphenoidal surgery for pituitary tumors. In this study we compared the effect of dexmedetomidine and placebo on intra operative hemodynamics of patients including SBP, DBP, MAP, HR, as well as effects on intraoperative bleeding, requirement of intraoperative analgesia/ anaesthesia and recovery profile.

The changes in heart rate were not significantly different from the baseline in Group D throughout the procedure and there was significant increase in HR in Group P after extubation (p<0.05).  MAP decreased significantly from baseline at 5 minutes after local infiltration and at 30, 40, 50, 60 and 70 minutes after start of surgery in group D (p<0.05). In group P, though the MAP decreased, the magnitude of decrease was not significant from the baseline.   On comparing the two groups, increase in HR in response to intubation was significantly blunted in Group D. HR was consistently lower and controlled in Group D during surgery though the difference was not statistically significant. The absolute values of MAP were lower and in the clinically desirable range of 75-85 mm Hg in Group D.  


 
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