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

NCT ID: NCT02536014

Last Updated: 2016-01-29

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

50 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-08-31

Study Completion Date

2016-01-31

Brief Summary

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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.

Detailed Description

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Conditions

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Prostate Cancer Robotic Surgery

Keywords

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Dexmedetomidine pneumoperitoneum trendelenburg position QTc interval Tp-e interval robotic prostatectomy

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Dexmedetomidine

Group Type EXPERIMENTAL

Dexmedetomidine

Intervention Type DRUG

Dexmedetomidine infusion (0.3㎍/kg/hr) from anesthetic induction to the end of pneumoperitoneum

Saline

Group Type ACTIVE_COMPARATOR

Saline

Intervention Type DRUG

Saline infusion during the same time period

Interventions

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Dexmedetomidine

Dexmedetomidine infusion (0.3㎍/kg/hr) from anesthetic induction to the end of pneumoperitoneum

Intervention Type DRUG

Saline

Saline infusion during the same time period

Intervention Type DRUG

Eligibility Criteria

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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
Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

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Yonsei University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institue, Yonsei Universiy College of Medicine

Seoul, Seoul, South Korea

Site Status

Countries

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South Korea

Other Identifiers

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4-2015-0337

Identifier Type: -

Identifier Source: org_study_id