baroreflex failure

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baroreflex failure

Physiology A constellation of clinical findings characterized by marked lability of BP with systolic/diastolic HTN and tachycardia, ± headache, diaphoresis, emotional lability, and refractoriness of heart rate in response to exogenous vasoactive substances alternating with hypotension and bradycardia Management Clonidine suppresses pressor and tachycardic surges, diazepam, reduces stress. Cf Autonomic failure.

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