## Abstract Pathological studies demonstrate a decreased iron content in the substantia nigra (SN) contributing to the pathophysiology of restless legs syndrome (RLS). SN echogenicity as measured by transcranial sonography (TCS) correlates with the SN iron content. The objective of this study was t
Sonographic substantia nigra hypoechogenicity in polyneuropathy and restless legs syndrome
β Scribed by Jana Godau; Almut Manz; Anne-Kathrin Wevers; Alexandra Gaenslen; Daniela Berg
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 438 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0885-3185
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β¦ Synopsis
Abstract
Substantia nigra (SN) hypoechogenicity assessed by transcranial Bβmode sonography (TCS) is typical for idiopathic restless legs syndrome (RLS). Here, we investigated whether SN hypoechogenicity may differentiate between polyneuropathy (PNP) patients with and without RLS. Seventyβfive patients with PNP, 65 healthy controls, and 75 patients with idiopathic RLS were investigated. A total of 41.2% patients with PNP additionally suffered from RLS. A total of 44.1% patients with PNP, 10.2% of healthy controls, and 91.2% of patients with idiopathic RLS exhibited SN hypoechogenicity. SN echogenicity did not differ significantly between PNP patients with and without RLS. Thus, TCS seems not suitable for the diagnosis of RLS in patients with PNP. Β© 2008 Movement Disorder Society
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