Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2023
A novel clinical sign to assess the risk of Parkinson's disease in patients with isolated asymmetric arm swing.
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Riancho Javier, Delgado-Alvarado Manuel
Аннотация
INTRODUCTION: An isolated asymmetric arm swing can represent the beginning of Parkinson's disease (PD) but also be related to physiological or non-specific musculoskeletal pathology.
PATIENTS AND METHODS: In this brief clinical observation including 15 patients with asymmetric arm swing, we provide a new clinical clue to evaluate the risk of subjacent parkinsonism.
RESULTS: Among non-parkinsonian subjects, the immobilization of the contralateral arm, by asking the patient to put his hand on the contralateral shoulder, induced a clear increase in the amplitude of the arm swing, whereas in PD patients, the arm swing amplitude did not significantly vary when the contralateral upper limb was immobilized.
CONCLUSIONS: This novel clinical sign may be helpful when approaching patients with gait abnormalities and specifically reduced arm swing.
PATIENTS AND METHODS: In this brief clinical observation including 15 patients with asymmetric arm swing, we provide a new clinical clue to evaluate the risk of subjacent parkinsonism.
RESULTS: Among non-parkinsonian subjects, the immobilization of the contralateral arm, by asking the patient to put his hand on the contralateral shoulder, induced a clear increase in the amplitude of the arm swing, whereas in PD patients, the arm swing amplitude did not significantly vary when the contralateral upper limb was immobilized.
CONCLUSIONS: This novel clinical sign may be helpful when approaching patients with gait abnormalities and specifically reduced arm swing.