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International Parkinson and Movement Disorder Society
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Global Assessment Scale for Wilson's Disease (GAS for WD)

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Global Assessment Scale for Wilson's Disease


Acronym: GAS for WD

Authors: Annu Aggarwal, Nitin Aggarwal, Aabha Nagral, Govindji Jankharia, and Mohit Bhatt

The Global Assessment Scale for Wilson's Disease (GAS for WD) measures the severity of the effects of Wilson’s disease on multiple systems. The scale has two parts, or tiers. The first tier measures disability in four areas: liver, cognition and behavior, motor, and osseomuscular. The second tier scores neurological dysfunction. The GAS for WD was designed for use in routine clinical practice to track disease progression and response to treatment in patients.

Original Publication View the Scale (PDF)

To request permission to use this Rating Scale, please fill out a Permission Request Form.

Year Published: 2009

Scale Last Updated: Unchanged since publication

Assessment Type: ClinRO

Estimated Time to Complete: 30 minutes

Available Translations: None

Additional Scale Publications:

Volpert HM, Pfeiffenberger J, Gröner JB, Stremmel W, Gotthardt DN, Schäfer M, Weiss KH, Weiler M. Comparative assessment of clinical rating scales in Wilson’s disease. BMC Neurology. 2017 Dec;17(1):140.

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