Effect of Dexmedetomidine on Heart-rate Corrected QT(QTc) Interval Prolongation During Robotic-assisted Laparoscopic Radical Prostatectomy -Randomized Blind Clinical Trial-

January 27, 2016 updated by: Yonsei University

Sympathetic activity could be increased during robot-assisted laparoscopic radical prostatectomy, which is performed in a steep trendelenburg position under CO2 pneumoperitoneum.

Stimulation of the sympathetic nervous system prolongs the QT interval and can increases the susceptibility to life threatening cardiac arrhythmias.

Dexmedetomidine has sympatholytic effects and potential antiarrhythmic properties. Perioperative administration of dexmedetomidine is a potential preventive and treatment strategy for tachyarrhythmia. Thus the investigators decided to evaluate the effect of dexmedetomidine on heart-rate corrected QT interval during robot-assisted laparoscopic radical prostatectomy. Furthermore, the investigators evaluated the Tp-e, Tp-e/QT ratio and Tp-e/QTc ratio as well.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

50

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Korea, Republic of
      • Seoul, Korea, Republic of, 03722
        • Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institue, Yonsei Universiy College of Medicine

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  1. ASA class I-II
  2. Otaining written informed consent from the patients who were undergoing robot- assisted laparoscopic radical prostatectomy

Exclusion Criteria:

  1. Emergency operation
  2. Cardiac disease (unstable angina, congestive heart failure, valvular heart disease)
  3. Ventricular conduction abnormality
  4. Prior pacemaker insertion
  5. Abnormal electrolyte values
  6. Patients who take antiarrythmic agent
  7. Hepatic or renal failure
  8. Drug hyperactivity
  9. Neurological or psychiatric illnesses

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Dexmedetomidine
Drug: Dexmedetomidine
Dexmedetomidine infusion (0.3㎍/kg/hr) from anesthetic induction to the end of pneumoperitoneum
Active Comparator: Saline
Drug: Saline
Saline infusion during the same time period

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Dexmedetomidine on heart-rate corrected QT(QTc) interval
Time Frame: From pre-induciton until 60 min after the end of pneumoperitoneum
QTc intervals (msec) are recorded from pre-induction until 60 min after the end of pneumoperitoneum
From pre-induciton until 60 min after the end of pneumoperitoneum

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Yonsei University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

August 1, 2015

Primary Completion (Actual)

January 1, 2016

Study Completion (Actual)

January 1, 2016

Study Registration Dates

First Submitted

July 14, 2015

First Submitted That Met QC Criteria

August 28, 2015

First Posted (Estimate)

August 31, 2015

Study Record Updates

Last Update Posted (Estimate)

January 29, 2016

Last Update Submitted That Met QC Criteria

January 27, 2016

Last Verified

January 1, 2016

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 4-2015-0337

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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