Effect of Intraoperative Magnesium on Remifentanil-induced Postoperative Hyperalgesia After Thyroidectomy

June 15, 2010 updated by: Yonsei University
The purpose of this study is to study the effect of intraoperative magnesium on remifentanil-induced postoperative hyperalgesia after thyroidectomy

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

84

Phase

  • Phase 4

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

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

20 years to 65 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patients undergoing thyroidectomy,
  • Age 20-65,
  • American Society of Anesthesiologists physical status classification I or II.

Exclusion Criteria:

  • History of chronic pain, Regular use of analgesic, antiepileptic or antidepressive drugs,
  • History of drug & alcohol abuse,
  • Psychiatric disorder,
  • Use of opioids within 24hrs,
  • Renal disease with decreased GFR,
  • Neuromuscular disease, Severe cardiac disease.

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
  • Interventional Model: PARALLEL
  • Masking: NONE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
EXPERIMENTAL: remifentanil, MgSO4
Experimental 1 : Intraoperative remifentanil infusion at 0.2 ㎍/㎏/min and MgSO4 30 mg/kg IV at the induction followed by intraoperative infusion at 10 mg/kg/hr Drug : remifentanil, MgSO4 Experimental 2 : Intraoperative remifentanil infusion at 0.2 ㎍/㎏/min and normal saline Drug : remifentanil Active comparator : Intraoperative remifentanil infusion at 0.05 ㎍/㎏/min and normal saline Drug : remifentanil
Drug: remifentanil, MgSO4
Patients undergoing thyroidectomy will be randomly assigned to one of three groups. Remifentanil will be infused intraoperatively at 0.05 ㎍/㎏/min (group Ⅰ) or 0.2 ㎍/㎏/min (group Ⅱ & Ⅲ). Patients in group Ⅲ will be received 30 ㎎/㎏ MgSO4 at the induction of general anesthesia followed by a maintenance infusion of 10 ㎎/㎏/hr intraoperatively until skin closure.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Tactile pain thresholds adjacent to the surgical wound assessed by von Frey hair before the induction and at postoperative 24 & 48 hrs
Time Frame: postoperative 48 hrs
postoperative 48 hrs

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

November 1, 2009

Primary Completion (ACTUAL)

January 1, 2010

Study Completion (ACTUAL)

January 1, 2010

Study Registration Dates

First Submitted

November 27, 2009

First Submitted That Met QC Criteria

December 2, 2009

First Posted (ESTIMATE)

December 3, 2009

Study Record Updates

Last Update Posted (ESTIMATE)

June 16, 2010

Last Update Submitted That Met QC Criteria

June 15, 2010

Last Verified

June 1, 2010

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 4-2009-0511

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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