Acute Pain, Subacute Pain, and Chronic Pain
Acute pain is pain that has been present for less than 3 months (Merskey 1979; Merskey and Bogduk 1994). Chronic pain is pain that has been present for more than 3 months (Merskey 1979; Merskey and Bogduk 1994). Subacute pain is a subset of acute pain: It is pain that has been present for at least 6 weeks but less than 3 months (van Tulder et al. 1997).
Acute pain, subacute pain, and chronic pain are defined by units of time, but the concepts on which they are based are more fundamentally related to causation and prognosis. This entry discusses what the definitions imply and the clinical significance of classifying pain into these categories.
Acute pain was first defined by Bonica, in his textbook published in 1953, as “a complex constellation of unpleasant sensory, perceptual and emotional experiences and certain associated autonomic, physiologic, emotional and behavioural responses” (Bonica 1953). Bonica...
- Bogduk, N. (Ed.). (2004). Practice guidelines for spinal diagnostic and treatment procedures. San Francisco: International Spine Intervention Society.Google Scholar
- Bonica, J. J. (1953). The management of pain. Philadelphia: Lea & Febiger.Google Scholar
- Cochrane, A. L. (1977). Effectiveness and efficiency. Random reflections on health services (p. 5). Cambridge: Cambridge University Press.Google Scholar
- Hippocrates. Of the epidemics, written 400 B.C.E translated by Francis Adams. http://classics.mit.edu/Hippocrates/epidemics.html.
- Merskey, H. (1979). Pain terms: A list with definitions and notes on usage recommended by the IASP Subcommittee on Taxonomy. Pain, 6, 249–252.Google Scholar
- Merskey, H., & Bogduk, N. (Eds.). (1994). Classification of chronic pain. Descriptions of chronic pain syndromes and definitions of pain terms (2nd ed., p. xi). Seattle: IASP Press.Google Scholar
- Sternbach, R. A. (1974). Pain patients: Traits and treatment. New York: Academic.Google Scholar