Dataset Information

Mirror movements in parkinsonism: evaluation of a new clinical sign.

ABSTRACT:

Background

Mirror movements (MM) are not widely appreciated in parkinsonism and no report has evaluated this clinical sign in detail.

Objectives

To define the parkinsonian clinical features associated with MM in patients with early, asymmetric parkinsonism.

Methods

Twenty seven patients with early Parkinson's disease were evaluated using a standardised videotaping protocol. MM were scored from blinded video assessment using a clinical scale that rates the amplitude, distribution, and proportion of mirroring in the less affected limb. Parkinsonian features were combined into axial and lateralised scores using related items of the Unified Parkinson's Disease Rating Scale.