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Ultrasonography in neuralgic amyotrophy: Sensitivity, spectrum of findings, and clinical correlations
Author(s) -
ArÁnyi Zsuzsanna,
Csillik Anita,
DéVay Katalin,
Rosero Maja,
Barsi PéTer,
BÖhm Josef,
Schelle Thomas
Publication year - 2017
Publication title -
muscle and nerve
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.025
H-Index - 145
eISSN - 1097-4598
pISSN - 0148-639X
DOI - 10.1002/mus.25708
Subject(s) - medicine , brachial plexus , fascicle , ultrasonography , constriction , reinnervation , ultrasound , anatomy , surgery , radiology
ABSTRACT Introduction The aim of this study was to assess the value of ultrasonography in neuralgic amyotrophy. Methods Fifty‐three patients with 70 affected nerves were examined with high‐resolution ultrasound. Results The most commonly affected nerve was the anterior interosseous (23%). Ultrasonographic abnormalities in the affected nerves, rather than in the brachial plexus, were observed, with an overall sensitivity of 74%. Findings included the swelling of the nerve/fascicle with or without incomplete/complete constriction and rotational phenomena (nerve torsion and fascicular entwinement). A significant difference was found among the categories of ultrasonographic findings with respect to clinical outcome ( P = 0.01). In nerves with complete constriction and rotational phenomena, reinnervation was absent or negligible, indicating surgery was warranted. Discussion Ultrasonography may be used as a diagnostic aid in neuralgic amyotrophy, which was hitherto a clinical and electrophysiological diagnosis, and may also help in identifying potential surgical candidates. Muscle Nerve 56 : 1054–1062, 2017