Features in essential tremor and the development of Parkinson's disease vs. parkinsonism.
Hsien Lee LauSarah E MarmolJason MargoleskyPublished in: Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology (2020)
ET-PD and ET-plus (PK) can be clinically difficult to differentiate as they have overlapping motor and non-motor features. Beta-blocker use did not predict development of ET-PD or ET-plus (PK); however, anosmia and constipation may be helpful non-motor distinguishing features. DAT scans and levodopa trials may be valuable in clarifying the diagnoses.