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Study to determine the efficacy of topical morphine on painful chronic skin ulcers.

AbstractOBJECTIVE:
To assess the efficacy of the topical application of morphine on painful chronic skin ulcers.
METHOD:
A prospective bi-centric controlled double-blind randomised study was conducted involving 24 patients with painful chronic skin ulcers using topically applied morphine versus placebo. Ten milligrams of morphine hydrochloride with Intrasite Gel or Intrasite Gel with placebo were applied daily for five days. All patients were treated with a level II analgesic treatment. A numeric pain scale lower than 4/10 and no need for a 'rescue' treatment (morphine sulphate) indicated that the treatment was successful. Local and systemic tolerance of the treatments was analysed daily.
RESULTS:
Twenty-four patients were included in the study, but only 18 started the protocol. Only 2/11 patients were completely relieved in the morphine group compared with 1/7 in the placebo group. Local and general tolerance of morphine was good. The peripheral efficacy of morphine is under discussion.
CONCLUSION:
The results suggest that topical morphine cannot be an alternative to morphine administered by other routes (subcutaneously or orally) in painful chronic skin ulcers. Stimulation of peripheral morphine receptors by systemic morphine could explain the difference between these results and those of previous studies.
AuthorsC Vernassiere, C Cornet, P Trechot, F Alla, F Truchetet, J F Cuny, N Commun, F Granel Brocard, A Barbaud, J L Schmutz
JournalJournal of wound care (J Wound Care) Vol. 14 Issue 6 Pg. 289-93 (Jun 2005) ISSN: 0969-0700 [Print] England
PMID15974417 (Publication Type: Clinical Trial, Journal Article, Multicenter Study, Randomized Controlled Trial, Research Support, Non-U.S. Gov't)
Chemical References
  • Analgesics, Opioid
  • Colloids
  • Gels
  • Organic Chemicals
  • comfeel
  • Morphine
Topics
  • Administration, Cutaneous
  • Aged
  • Analgesics, Opioid (administration & dosage)
  • Chi-Square Distribution
  • Chronic Disease
  • Colloids (therapeutic use)
  • Double-Blind Method
  • Drug Administration Schedule
  • Exudates and Transudates
  • Female
  • France
  • Gels
  • Granulation Tissue
  • Humans
  • Male
  • Morphine (administration & dosage)
  • Necrosis
  • Organic Chemicals
  • Pain (diagnosis, drug therapy, etiology)
  • Pain Measurement
  • Prospective Studies
  • Severity of Illness Index
  • Skin Care (methods)
  • Skin Ulcer (complications, pathology)
  • Treatment Outcome

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