Mechanisms of Pain

Mixed - Nociceptive/Neuropathic

Nociceptive - Tissue Damage

 - Visceral - (From organ/cavity lining) Poorly localized, crampy, diffuse, deep sensation

 - Superficial - Well-localized, sharp, short duration

 - Deep - Less well-localized, dull, longer duration

Neuropathic - Burning, shooting, gnawing, aching, lancinating

 - Peripheral Nervous System

     • Post-Herpetic Neuralgia

     • Neuroma

     • Neuropathy

 - Sympathetic

     • Complex regional pain syndrome

 - Deafferentation - Loss of sensory input

     • Phantom Limb

     • Post-stroke

     • Spinal injury



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