Tremor in children.

Tremor in childhood, beginning in the neonatal period, is more common than generally appreciated. Although some tremor disorders in children (eg, essential tremor) also affect adults, others (eg, shuddering, jitteriness, spasmus nutans, and vitamin B12-deficiency tremor) are seen exclusively in children. This review covers the etiology, clinical features, and treatment of the major tremor syndromes in children, and when appropriate, makes comparisons with similar disorders in adults.