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CompletedNCT03077503Updated Aug 20, 2020

Comparison of Dexmedetomidine and Fentanyl to Prevent Hemodynamic Response to Skull Pins Application

A Phase 4 interventional study of Dexmedetomidine and Fentanyl in Hemodynamic Response and Skull Pins Application, sponsored by Khon Kaen University. Completed at 1 site in Thailand. Open to participants aged 18 Years to 64 Years. Per ClinicalTrials.gov, last updated 2020-08-20.

Sponsored by Khon Kaen University · Phase 4, Interventional, and Treatment

From the registry’s dates

  • Registered 1 year 6 months after the study started (first participant enrolled Sep 2015, registered Mar 2017).
Phase
Phase 4
Study type
Interventional
Enrollment
60
Allocation
Randomized
Ages
18 Years to 64 Years
Sex
All
01

Study summary

To compare the effect between dexmedetomidine and fentanyl for controlling the hemodynamic response to skull pins application

Read the detailed description

A randomized, double-blinded controlled trial was conducted from September 2015 to September 2016 in Srinagarind Hospital, Faculty of Medicine, Khon Kaen University, Thailand. Sixty patients who underwent craniotomy with insertion of skull pin were randomly allocated into group A and B. After patients entered the operative room, blood pressure and heart rate were measured (T1) then repeated measurement again (T2) when started induction, intubation and infusion dexmedetomidine 1 µg/kg over 10 min infusion in group A whereas group B received normal saline. At 3 minutes before skull pin insertion (T3), patient in group B received a single bolus of fentanyl 1 µg/kg whereas group A received normal saline. Then hemodynamic responses were recorded and repeated again at one minute before skull pin insertion (T4). Blood pressure and heart rate were observed at the time of skull pin insertion (T5) then repeated every 1 minutes after skull pin application until 5 minutes (T6 - T10).

02

Conditions studied

  • Hemodynamic Response
  • Skull Pins Application

Keywords

  • Hemodynamic response
  • Skull pins application
  • Dexmedetomidine
  • Fentanyl
03

In context

Lead sponsor

Khon Kaen University is the lead sponsor of 160 studies on the registry; 24 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 64 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • patients who scheduled for elective craniotomy under general anesthesia
  • patient with American Society of Anesthesiologists physical status classification of I and II

Exclusion criteria

Exclusion Criteria:

  • patients having body mass index more than 30 kg/m2, heart rate lower than 45 bpm, hypertension, ischemic heart disease, heart block, on beta adrenergic blockers, medication allergy including propofol, fentanyl, and dexmedetomidine.
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Outcomes assessor)
Enrollment
60 participants (actual)

Study arms

  • Experimental
    Dexmedetomidine (Group A)

    In induction period, group A received dexmedetomidine 1 µg/kg diluted to 20 ml with 0.9% normal saline 10 minute through a syringe pump. Three minutes before application of skull pins, group A received infusion of 2 ml of 0.9% normal saline.

    Drug: Dexmedetomidine · Drug: 0.9% normal saline · Device: Skull pins

  • Active comparator
    Fentanyl (group B)

    In induction period, group B received 20ml of 0.9% normal saline.Three minutes before application of skull pins, group B received infusion of fentanyl 1 µg/kg diluted to 2 ml with 0.9% normal saline

    Drug: Fentanyl · Drug: 0.9% normal saline · Device: Skull pins

Interventions

  • DrugDexmedetomidine

    Dexmedetomidine 1 µg/kg diluted to 20 ml with 0.9% normal saline was administration. If adverse events were occurred, the patient will receive rescue drugs.

    Also known as: precedex

  • DrugFentanyl

    Fentanyl 1 µg/kg diluted to 2 ml with 0.9% normal saline was administration. If adverse events were occurred, the patient will receive rescue drugs.

  • Drug0.9% normal saline

    0.9% normal saline was use to dilute the study drugs

  • DeviceSkull pins

    Skull pins were use to stabilized the patent' s head during surgery

    Also known as: Mayfield

06

What researchers measure

Primary outcomes

  1. Change in blood pressure

    Blood pressure was recorded by the blinded anesthesiologist

    Time frame: Baseline in time frame before pin insertion (T1-T4) , time during pin insertion (T5), repeated measurement time every 1 minute until 5 minutes after pin applications (T6-T10).

Secondary outcomes

  1. Change in mean arterial pressure

    Mean arterial pressure was recorded by the blinded anesthesiologist

    Time frame: Baseline in time frame before pin insertion (T1-T4), time during pin insertion (T5), repeated measurement time every 1 minute until 5 minutes after pin applications (T6-T10).

  2. Change in heart rate

    Heart rate was recorded by the blinded anesthesiologist

    Time frame: Baseline in time frame before pin insertion (T1-T4), time during pin insertion (T5), repeated measurement time every 1 minute until 5 minutes after pin applications (T6-T10).

  3. adverse events

    Adverse events were recorded by the blinded anesthesiologist. Rescue drugs were give when adverse events were occurred. Rescue drug include propofol (for hypertension), ephedrine(for hypotension), esmolol (for tachycardia), atropine (for bradycardia)

    Time frame: Baseline in time frame before pin insertion (T1-T4), time during pin insertion (T5), repeated measurement time every 1 minute until 5 minutes after pin applications (T6-T10).

07

Study locations

1 site
  • Khon Kaen University
    Khon Kaen, 40002, Thailand
08

References and documents

Publications

  • Paul A, Krishna HM. Comparison between intravenous dexmedetomidine and local lignocaine infiltration to attenuate the haemodynamic response to skull pin head holder application during craniotomy. Indian J Anaesth. 2015 Dec;59(12):785-8. doi: 10.4103/0019-5049.171558. PubMed 26903671 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 20, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03077503
Lead sponsor
Khon Kaen University
Responsible party
Pornthep Kasemsiri (Clinical Assistant Professor, Khon Kaen University) — Principal investigator
First posted
Mar 13, 2017
Start date
Sep 1, 2015
Primary completion
Sep 30, 2016
Completion
Sep 30, 2016
Last update
Aug 20, 2020

Study contacts

Pornthep Kasemsiri, MD
principal investigator · Khon Kaen University

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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