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orthostatic tremor; postural tremor
Etiology:
- vitamin B12 deficiency
- Parkinson's disease [2]
Clinical manifestations:
- high-frequency tremor in the legs induced or increased in severity with assuming an erect or standing position
- tremor resolves with sitting or action [1]
Differential diagnosis:
- continuation of resting tremor in patients with Parkinson's disease
Management:
- pure postural tremor in patients with Parkinson's disease responds to deep brain stimulation
General
action tremor
References
- Medical Knowledge Self Assessment Program (MKSAP) 17,
American College of Physicians, Philadelphia 2015
- Dirkx MF, Zach H, Bloem BR, Hallett M, Helmich RC.
The nature of postural tremor in Parkinson disease.
Neurology 2018 Mar 27; 90:e1095.
PMID: 29476038