Classification Of Chronic Persistent Pain

1483 Words Aug 30th, 2014 6 Pages
Classification of Chronic Persistent Pain

Nociceptive pain is pain resulting when special nerve endings (nociceptors) are stimulated. A classic example is the initial pain from a burn. It is often the pain of the acute phase but may become chronic. Patients complain of sharp and aching pain. It is part of many chronic pain conditions and therefore was not given its own category in table 1.

CPP is pain that was expected to resolve, but lasting longer than 3 months, or beyond the usual course or disease causing the pain. The pain, and its causes are frequently multifactorial, and maybe exacerbated by pathophysiology, psychosocial, environmental (loss of work) factors, and physical disability.12,13 Pain can aggravate other medical, and psychological conditions;14 conversely co-morbid medical, and psychological problems may influence the onset and severity of CPP.15,16

CPP is classified as neuropathic, muscular, mechanical or compression, inflammatory, or mixed.17 (Table 1) Understanding the pathogenesis of pain, helps with more focused history, examination, and plan of care.18

Neuropathic Pain

Neuropathic pain is defined as pain arising as a direct consequence of an injury or disease affecting the somatosensory system.19 Patients may have a history of exposure to toxins, vitamins B1, B6, B12 deficiency, infections affecting the CNS, and co-morbidities like diabetes. The pain is usually described as burning, stabbing, throbbing, and/or shooting pain. Allodynia maybe…

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