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Review
. 2017 Oct;23(5, Peripheral Nerve and Motor Neuron Disorders):1332-1359.
doi: 10.1212/CON.0000000000000535.

Diagnosis and Clinical Management of Amyotrophic Lateral Sclerosis and Other Motor Neuron Disorders

Stephen A Goutman
Review

Diagnosis and Clinical Management of Amyotrophic Lateral Sclerosis and Other Motor Neuron Disorders

Stephen A Goutman. Continuum (Minneap Minn). 2017 Oct.

Abstract

Purpose of review: This article reviews the clinical features, diagnostic pathway, therapies, and current understanding of the pathophysiology of amyotrophic lateral sclerosis (ALS). The spectrum of motor neuron diseases is reviewed, and the clinical heterogeneity of ALS is described.

Recent findings: ALS is increasingly recognized as a clinical spectrum disorder with pure upper and pure lower motor neuron presentations, supported by genetic links. The phenotypic variability is broad. Identification of ALS-related genes provides insights into disease mechanisms.

Summary: ALS is a progressive fatal multisystem neurodegenerative disease primarily affecting motor neurons. Clinical recognition of suspicious symptoms and the appropriate laboratory evaluation are essential to limit diagnostic delay and avoid unnecessary testing and procedures. ALS has broad genetic and hypothesized environmental causes and phenotypic variability. Recognizing related motor neuron diseases will prevent misdiagnosis while allowing proper disease counseling. Although ALS cannot be cured, implementation of appropriate symptomatic treatment is valuable.

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