autonomic nervous system disorder multiple system atrophy pure autonomic failure https://www.malacards.org/card/pure_autonomic_failure Bradbury Eggleston syndrome Pure autonomic failure (PAF) is a neurodegenerative disease that affects the sympathetic branch of the autonomous nervous system and that manifests with orthostatic hypotension. Orphanet:441 Bradbury-Eggleston syndrome MONDO:0018608 icd11.foundation:734022291 SCTID:84438001 PAF Pure idiopatic dysautonomia MEDGEN:98293 orthostatic hypotension (a symptom) Pure dysautonomia MESH:D054970 idiopathic orthostatic hypotension (a symptom) GARD:0010428 UMLS:C0393911 NORD:1948 idiopathic orthostatic hypotension