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PAROXYSMAL MOTOR EVENTS
The
term paroxysmal motor event refers to any sudden change in motor activity
with or without associated autonomic, behavioral or respiratory rate changes
(other than apnea).
Most paroxysmal motor events are characterized by an increase in motor
activity. Decreased motor activity is seldom sudden enough to be considered
a paroxysmal motor event.
Paroxysmal motor events are
benign (not indicative of significant pathology, do not require treatment,
and have good prognosis) or malignant (indicative of significant pathology,
require treatment or have poor prognosis) (Table 5.1).
Table
5.1.—Paroxysmal Motor Events
Benign
|
Benign neonatal sleep myoclonus
|
Behavioral movements
|
Physiologic reflex activity |
Benign jitteriness |
Movement arousals |
Marcus Gunn phenomenon |
Malignant
|
Convulsions |
Pathological reflexes |
Startle disease |
Extrapyramidal movements |
|
|
|