title: Intention tremor of the head in patients with essential tremor.
abstract: Patients with essential tremor (ET) have kinetic arm tremor; this tremor can also have an intentional component. We are unaware of reports of intention tremor of the head in ET. Our aims were to describe, provide electrophysiological data and video documentation of, and estimate the prevalence of intention tremor of the head in our sample. Ten (9.0%; 95% confidence interval = 4.7%-14.3%) of 111 patients had intention tremor of the head; in 7 it involved the neck and in 3 the chin. These patients trended toward having more severe kinetic arm tremor and they had more severe intention tremor of the arms. These observations provide further support for the evolving view that the cerebellum may be involved in ET.
authors.affiliation: Department of Neurology, College of Physicians and Surgeons, Columbia University, New York, New York, USA.
authors.forename: Julie
authors.initials: J
authors.lastname: Leegwater-Kim
authors.forename: Elan D
authors.initials: ED
authors.lastname: Louis
authors.forename: Seth L
authors.initials: SL
authors.lastname: Pullman
authors.forename: Alicia G
authors.initials: AG
authors.lastname: Floyd
authors.forename: Sarah
authors.initials: S
authors.lastname: Borden
authors.forename: Carol B
authors.initials: CB
authors.lastname: Moskowitz
authors.forename: Lawrence S
authors.initials: LS
authors.lastname: Honig
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D004576:Electromyography / Q000379:methods; D020329:Essential Tremor / Q000473:pathology / Q000503:physiopathology / Q000523:psychology; D005260:Female; D007839:Functional Laterality; D006257:Head / Q000503:physiopathology*; D006801:Humans; D033182:Intention; D008297:Male