Pain During Chest Tube Withdrawal: Evaluation Using Pan Monitor


Pain evaluation remains a clinical problem. Pain Monitor allows pain evaluation using the measurement of skin conductance.

Withdrawal of chest tube can be painful and the purpose of the study was to compare auto-evaluation of pain (visual analogic scale) and the index measured by the Pain Monitor.

Full Title of Study: “Pain During Chest Tube Withdrawal: Evaluation Using Pan Monitor in Patients With or Without Epidural Anesthesia”

Study Type

  • Study Type: Observational
  • Study Design
    • Time Perspective: Prospective
  • Study Primary Completion Date: May 2014


  • Procedure: Chest drain withdrawal
  • Device: Pain Monitor

Arms, Groups and Cohorts

  • Epidural analgesia
    • Postoperative patients with epidural analgesia
  • Oral analgesics
    • Postoperative patients with oral analgesics

Clinical Trial Outcome Measures

Primary Measures

  • Pain monitor evaluation of pain
    • Time Frame: 1 hour
    • Comparison between Pain monitor index and auto-evaluation of pain (numerical scale from 0 -no pain- to 10 – maximal pain)

Secondary Measures

  • Pain intensity
    • Time Frame: 1 hour
    • Evolution of Pain monitor index and of auto-evaluation of pain (numerical scale from 0 -no pain- to 10 – maximal pain) during the chest tube withdrawal

Participating in This Clinical Trial

Inclusion Criteria

  • patients undergoing removal of a chest tube after lung surgery,
  • patients able to indicate the pain score.

Exclusion Criteria

  • pregnancy, lactation ,
  • insulin-dependent diabetes with dysautonomia,
  • central or peripheral neurological disease, agitation,
  • inability to understand the protocol,
  • inability to use the Pain Monitor: skin abnormalities at the site of measurement, pacemaker or implantable defibrillator, condition affecting the sympathetic nervous system, tremor of the extremities,
  • contra-indication to oral morphine ,
  • respiratory failure, severe hepatic insufficiency, intracranial hypertension, epilepsy associations
  • recent administration of neostigmine or of atropine.

Gender Eligibility: All

Minimum Age: 18 Years

Maximum Age: 75 Years

Are Healthy Volunteers Accepted: No

Investigator Details

  • Lead Sponsor
    • Hopital Foch
  • Provider of Information About this Clinical Study
    • Sponsor
  • Overall Official(s)
    • Marc Fischler, Study Chair, Hôpital Foch

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