Supine head tremor: a clinical comparison of essential tremor and spasmodic torticollis patients.

Background: Essential tremor (ET) is among the most misdiagnosed neurological diseases, and overdiagnosis is especially common. As many as 30-50% of supposed 'ET' cases have other diagnoses, with dystonia prominent among these. Therefore, the recognition of differences in tremor phenomenology has potential diagnostic value for practising clinicians.

Estimating annual rate of decline: prospective, longitudinal data on arm tremor severity in two groups of essential tremor cases.

Background: Despite its high prevalence, there are surprisingly few prospective, longitudinal data on the clinical course of essential tremor (ET). Patients themselves often want to know from their treating physician whether and by how much their tremor is expected to worsen over time.

Methods: As part of two research protocols, prospective, longitudinal data were collected on tremor severity in two samples of ET cases (44+39 cases, combined n=83).

Rest tremor in advanced essential tremor: a post-mortem study of nine cases.

Background: Rest tremor may occur in as many as 30% of essential tremor (ET) patients. It is not clear whether this tremor is a sentinel marker for brainstem Lewy body pathology. Here we report the clinical and post-mortem findings of nine ET cases with upper-extremity rest tremor in the absence of other parkinsonian features.