Vanderbilt Autonomic Dysfunction Center

Partial Dysautonomia

A partial dysautonomia could account for the warm dry feet (loss of sudomotor nerve), the gravity-dependent dusky skin (blood suffusion of the skin), the leg vein hyper-responsiveness to norepinephrine, the reduced galvanic responses, abnormal sweating of the extremities, the excessive orthostatic blood pooling, the tachycardia, and the reduced stroke volume seen in OI patients.

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