In a patient with a spinal cord injury (SCI), autonomic hyperreflexia (autonomic dysreflexia) is initiated by noxious stimuli below the level of cord injury. The noxious stimuli elicits a hypertensive response, which is followed immediately by a profound vagal response. In response to the increase in afterload, patient may vasodilate and appear flushed above the level of cord injury. [More…]
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