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Chronic Pain

J. Greg Hobelmann, M.D., M.P.H., Michael Clark, M.D., M.P.H., M.B.A.
Chronic Pain is a topic covered in the Johns Hopkins Psychiatry Guide.

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  • Pain is "an unpleasant sensory and emotional experience associated with actual or potential tissue damage."
  • Chronic pain is usually defined as pain that persists beyond the time expected for healing of an injury or resolution of an illness.
    • Standard definitions emphasize 3-6 months’ duration, intensity of 6-7/10 on a visual analog scale (VAS), and associated emotional distress and physical impairment.
  • Chronic pain can also be defined as pain that represents an adaptation of the nervous system such that:
    • Pain continues that is an over response to a noxious stimulus.
    • Pain is a noxious experience of a neutral stimulus.

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Last updated: May 2, 2017


Hobelmann, J. G, and Michael Clark. "Chronic Pain." Johns Hopkins Psychiatry Guide, 2017. Johns Hopkins Guide, www.hopkinsguides.com/hopkins/view/Johns_Hopkins_Psychiatry_Guide/787030/all/Chronic_Pain.
Hobelmann JG, Clark M. Chronic Pain. Johns Hopkins Psychiatry Guide. 2017. https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_Psychiatry_Guide/787030/all/Chronic_Pain. Accessed August 21, 2019.
Hobelmann, J. G., & Clark, M. (2017). Chronic Pain. In Johns Hopkins Psychiatry Guide. Available from https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_Psychiatry_Guide/787030/all/Chronic_Pain
Hobelmann JG, Clark M. Chronic Pain [Internet]. In: Johns Hopkins Psychiatry Guide. ; 2017. [cited 2019 August 21]. Available from: https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_Psychiatry_Guide/787030/all/Chronic_Pain.
* Article titles in AMA citation format should be in sentence-case
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