An alert recently went out regarding an experimental procedure that uses balloon angioplasty devices outside the scope of the agency’s approved indications for use. Transvascular autonomic modulation involves the threading of a catheter into a patient’s venous system and inflating a balloon attached to the catheter in order to widen the vein walls. In this use, one physician has claimed the method treats the signs and symptoms of autonomic dysfunction in some neurological disorders. However, FDA has not reviewed data that supports the safe and effective use of balloon angioplasty devices for this approach.
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