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Influence of Intraoperative Analgesia on the Postoperative Morphine Consumption

Anesthesia Clinical Trial

Official title:
Influence of Intraoperative Analgesia (Sufentanil Administered According to the Usual Criteria or Remifentanil Administered by a Closed-loop System Using Bispectral Index as the Controller) on the Postoperative Morphine Consumption

Clinical Trial Summary

Unlike longer acting opiates (sufentanil), remifentanil may provoke postoperative hyperalgesia. We have developed two automated bispectral index - guided drug delivery systems: one for propofol administration, the other for combined propofol and remifentanil administration. Both systems achieve the same objective: similar level of anesthesia indicated by bispectral index levels between 40 to 60. We make the assumption that this method of automated remifentanil administration may avoid postoperative hyperalgesia. Patients scheduled for abdominal surgery will be divided into two groups:

- in one group, patients will receive automatically delivered propofol and manually delivered sufentanil according to the usual criteria,

- in the other group, patients will receive propofol and remifentanil both automatically administered.

Assessment of postoperative hyperalgesia will be primarily based on morphine consumption (patient controlled analgesia) and detection of cutaneous hyperalgesia areas.

Clinical Trial Description

n/a

Study Design

Allocation: Randomized, Endpoint Classification: Pharmacodynamics Study, Intervention Model: Parallel Assignment, Masking: Single Blind (Subject), Primary Purpose: Basic Science

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT00772616
Study type Interventional
Source Hopital Foch
Contact
Status Completed
Phase Phase 4
Start date September 2008
Completion date January 2011
View Details
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