Nociceptive (somatic or visceral)
Etiology: activity of nociceptors in cutaneous and deep musculoskeletal tissue in response to tissue-damageing stimulil, inflammation; Pain Descriptors: Somatic: Dull, aching, well-localized, nocturnal; Visceral: deep squeezing pressure, local tenderness
Neuropathic
Etiology: primary lesion (neuroma) or dysfunctionin nervous system causing ectopic chrgew w/in NS; Pain descriptors: constant dull ache, burning, stabbing, vice-like, electric shock-like, numbness, tingling, allodynia, hyperalgesia, hypoalgesia; Associate
Cancer Pain
Etiology: infiltrationof lesion, nerve injury from periphery or CNS; Pain Descriptions: dependent on underlying pathology; Associated Disorders: bone metastases neuropaty; Treatment options: symptom control - any of the above
Reflective Sympathetic Dystrophy (RSD) or Complex Regional Pain Syndrome (CRPS)
chronic progressive nerve condition, characterized by burning pian, swelling, stiffness, and discoloration of affected extremity; affects both men/women around 40-60 yrs and occurs weeks-months after nerve injury (carpal tunnel, broken leg, cerbral lesion