Erratic myoclonus

What it means

A type of myoclonus in which the myoclonias shift from body region to another in a random and asynchronous fashion. Erratic myoclonus can affect the face or limbs, are brief, single or repetitive, very frequent and nearly continuous.

Erratic may appear immediately after birth.Definition adapted from The Epilepsies: Seizures, Syndromes and Management; Chapter 5: Neonatal Seizures and Neonatal Syndromes; NCBI Book NBK2599.

Rare diseases that can present with this2

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: Fragmentary myoclonus