• J Formos Med Assoc · Apr 2017

    Observational Study

    Long-term use of opioids in 210 officially registered patients with chronic noncancer pain in Taiwan: A cross-sectional study.

    • Tso-Chou Lin, Luo-Ping Ger, Joseph V Pergolizzi, Robert B Raffa, Ju-O Wang, and Shung-Tai Ho.
    • Department of Anesthesiology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.
    • J Formos Med Assoc. 2017 Apr 1; 116 (4): 257-265.

    Background/PurposePrescribing opioids for chronic noncancer pain has been strictly regulated for two decades in Taiwan. The aim of this study was to survey the patients' perspectives and potential drawbacks following long-term use of opioids.MethodsAn observational cross-sectional survey using the Taiwanese version of Brief Pain Inventory was conducted among outpatients with chronic noncancer pain registered by the Taiwan Food and Drug Administration. Patients were also asked about their sexual behavior, depression, opioid misuse behaviors, and use of complementary and alternative medicine.ResultsFor 210 of 328 outpatients (64.0%), the median pain duration was 96 months and opioid treatment duration was 57 months. The median morphine equivalent dose was 150 mg/d, with 30.5% of patients exceeding the daily watchful dose, defined as 200 mg of morphine equivalent dose. Pain reduction after taking opioids was ∼50% in the past week. The top three diagnoses were chronic pancreatitis, spinal cord injury, and neuralgia. The leading side effects were constipation (46.7%), and decreased sexual desire (69.5%) and satisfaction (57.9%). Depression was currently diagnosed in 55.2% of patients. Twenty patients (9.5%) displayed at least one aberrant behavior in the past month. Only 76 (36.2%) patients had ever received nerve block procedures, and 118 (56.2%) tried complementary and alternative medicine.ConclusionThis nationwide survey described the concurrent pain intensity, daily function, and various adverse effects by long-term opioids among 210 monitored outpatients with chronic noncancer pain in Taiwan. More efforts are suggested to reduce opioid prescriptions in the 30% of patients exceeding daily watchful dose.Copyright © 2016. Published by Elsevier B.V.

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