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Conversion ratios for opioid switching: a pragmatic study.

Sebastiano Mercadante1, Claudio Adile2, Patrizia Ferrera2

  • 1Main Regional Center for Pain Relief and Supportive/Palliative Care, La Maddalena Cancer Center, Via San Lorenzo 312, 90146, Palermo, Italy. terapiadeldolore@lamaddalenanet.it.

Supportive Care in Cancer : Official Journal of the Multinational Association of Supportive Care in Cancer
|December 29, 2022
PubMed
Summary
This summary is machine-generated.

Successful opioid switching in cancer patients maintains stable conversion ratios. Careful monitoring is advised for high-dose opioid users, especially when switching to methadone, in palliative care settings.

Keywords:
Cancer painOpioid switchingPalliative care

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Area of Science:

  • Palliative Care
  • Oncology
  • Pharmacology

Background:

  • Opioid conversion ratios for successful switching remain largely unknown.
  • Understanding these ratios is crucial for effective pain management in cancer patients.

Purpose of the Study:

  • To determine initial and final opioid conversion ratios in successful opioid switching.
  • To identify factors associated with successful opioid switching in cancer patients.

Main Methods:

  • Evaluation of 95 successfully switched cancer patients.
  • Data collection included patient demographics, cancer details, pain characteristics, and opioid dosing (oral morphine equivalents).
  • Edmonton Symptom Assessment Scale used for symptom evaluation.

Main Results:

  • No significant statistical differences were found between initial and final opioid conversion ratios.
  • No specific factors were associated with conversion ratios when switching to methadone.

Conclusions:

  • Opioid switching is an effective and safe method for improving cancer pain management and reducing symptoms.
  • Final opioid conversion ratios did not differ from initial ratios.
  • Close monitoring of patients on high opioid doses, particularly those switched to methadone, is recommended in specialized palliative care units.