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Heart Rate Variability and Postoperative Pain (ECG-Spectral)

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT00438035
First Posted: February 21, 2007
Last Update Posted: August 12, 2008
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by:
University Hospital, Bordeaux
  Purpose
Postoperative pain stimulates the autonomic nervous system, induces the production of pro-inflammatory substances, reduces patient mobility and impairs vital functions. The ECG spectral analysis (ECGs) is a non-invasive marker of the autonomic nervous system state. To our knowledge, the correlation between the sympathovagal activity quantified by a non invasive method and the postoperative pain, has not been studied before.

Condition Intervention
Pain Postoperative Procedure: ECG spectral

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Diagnostic
Official Title: Evaluation of Postoperative Pain by Spectral Analysis of ECG R-R Intervals

Further study details as provided by University Hospital, Bordeaux:

Primary Outcome Measures:
  • Spectral ECG [ Time Frame: Preoperative and postoperative time ]

Enrollment: 106
Study Start Date: February 2007
Study Completion Date: February 2008
Primary Completion Date: February 2008 (Final data collection date for primary outcome measure)
Detailed Description:
  • Principal Objective : 1)To quantify postoperative pain by the ECGs technique. 2) To compare the ECGs parameters with the visual analog pain scale (VAS) results.
  • Secondary Objective : To determine the influence of preoperative chronic pain and pathophysiological profiles on the correlation between postoperative ECGs and VAS.
  • Study design : An observational, prospective, single arm, single center study.
  • Inclusion criteria : ¨Patients over 18 years old scheduled for surgery under general anesthesia. Patients capable of using the visual analog pain scale.
  • Exclusion criteria : Pregnancy or breast feeding, impossibility to obtain an informed consent, incapacity to follow all the study schedule. Patient not protected by social security, patient likely to present hypovolemia or severe hemodynamic instability. Patient with a dysautonomia characterized by orthostatic hypotension, patients with cardiac disarrhythmias, likely to interfere with the ECG and/or the spectral analysis of ECG.
  • Study plan: Patients will sign their informed consent during the V0 visit (preoperative). During V0, HF and LF (ECGs parameters) will be measured as well as the VAS-estimated pain. These results, medical history, concomitant diseases and medications will be reported in a case report form (CRF). The second and last visit, V1, takes place 1 hour after the patient wakes up, in the postoperative period. ECGs and VAS evaluation will be achieved in the same manner as the V0 visit. The only difference is that the measurements will be repeated to obtain a total of 5 data couples over 2 hours. These Intrapatient estimations will be used to improve statistical ECGs vs VAS correlation analysis.
  • Number of subjects : 100
  Eligibility

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Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Patients over 18 years old scheduled for surgery under general anesthesia.
  • Patient able to use the visual analog pain scale

Exclusion Criteria:

  • Pregnancy or breast feeding
  • Impossibility to obtain an informed consent
  • Incapacity to follow all the study schedule
  • Patient not protected by social security
  • Patient likely to present hypovolemia or severe hemodynamic instability
  • Patient with a dysautonomia characterized by orthostatic hypotension
  • Patient with cardiac disarrhythmias, likely to interfere with the ECG and/or the spectral analysis of ECG
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00438035


Locations
France
Service de Neurochirurgie A, hôpital Pellegrin
Bordeaux Cedex, Place Amélie Raba-Léon, France, 33076
Sponsors and Collaborators
University Hospital, Bordeaux
Investigators
Principal Investigator: Musa SESAY, MD University Hospital, Bordeaux
  More Information

Publications:
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: Jean-Pierre LEROY / Clinical Research and Innovation Director, University Hospital, Bordeaux
ClinicalTrials.gov Identifier: NCT00438035     History of Changes
Other Study ID Numbers: AOI 2002
First Submitted: February 19, 2007
First Posted: February 21, 2007
Last Update Posted: August 12, 2008
Last Verified: February 2007

Keywords provided by University Hospital, Bordeaux:
Postoperative pain
Heart rate variability, sympathetic, parasympathetic
Visual analog pain scale
Spectral analysis of ECG

Additional relevant MeSH terms:
Pain, Postoperative
Pain
Neurologic Manifestations
Nervous System Diseases
Postoperative Complications
Pathologic Processes
Signs and Symptoms