Rare diseases · Sign or symptom
Focal autonomic seizure
HP:0011154
What it means
An autonomic seizure is a type of focal non-motor seizure characterized by alteration of autonomic nervous system function as the initial semiological feature.
Focal seizures with a subjective or objectively documented alteration of autonomic nervous system function at onset, involving but not limited to, cardiovascular, pupillary, gastrointestinal, sudomotor, vasomotor and thermoregulatory functions. Focal autonomic seizure is not a child of Epileptic aura (HP:0033348) as many Focal autonomic seizures are not purely subjective (required to be called an aura).
Rare diseases that can present with this3
The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.
Part of the broader category
Also called: Focal autonomic seizures
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Start free with EleplanThis page uses the Human Phenotype Ontology (2026-06-23) — Human Phenotype Ontology Consortium, hpo.jax.org. Disease associations from Orphanet (INSERM), CC BY 4.0. Content is educational and is not medical advice.