Ultrasonographic abnormalities in clinically unaffected nerves of patients with nonvasculitic motor and sensorimotor mononeuropathies.

electrodiagnosis inflammatory mononeuropathy nerve cross‐sectional area peripheral nerves ultrasonography

Journal

Muscle & nerve
ISSN: 1097-4598
Titre abrégé: Muscle Nerve
Pays: United States
ID NLM: 7803146

Informations de publication

Date de publication:
26 Jul 2024
Historique:
revised: 16 07 2024
received: 22 01 2024
accepted: 17 07 2024
medline: 26 7 2024
pubmed: 26 7 2024
entrez: 26 7 2024
Statut: aheadofprint

Résumé

Diagnostic criteria for multifocal motor neuropathy (MMN) and multifocal acquired demyelinating sensorimotor neuropathy (MADSAM) require the involvement of at least two peripheral nerves. However, many patients with very similar features have clinical involvement of only a single peripheral nerve, which may preclude their correct diagnosis and treatment. The present study aimed to present a cohort of such patients and discuss the role of ultrasonography (US) in their diagnosis. Patients with nonvasculitic immune-mediated motor mononeuropathies (MM) and sensorimotor mononeuropathies (SMM) were recruited prospectively or identified from the electronic records. They were invited to comprehensive follow-up visits consisting of clinical examination, electrodiagnostic (EDx), and US studies. Twenty-four patients (13 men) were studied (11 with MM). The characteristics of MM and SMM patients were very similar to MMN and MADSAM, respectively. The US, in addition to a long-swollen segment (average length, 20 cm) in the clinically affected nerve, revealed nerve swelling in, on average, six additional sites in clinically unaffected nerves. In patients with clinical and EDx involvement of only a single nerve, an US demonstration of multifocal peripheral nerve swelling points to a more widespread, probably dysimmune mechanism. Further studies are needed to evaluate the value of US as a supplementary method for the diagnosis of MADSAM and MMN in patients with clinical involvement of a single nerve.

Identifiants

pubmed: 39056164
doi: 10.1002/mus.28223
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Subventions

Organisme : The Republic of Slovenia Research Agency
ID : P3-0338

Informations de copyright

© 2024 Wiley Periodicals LLC.

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Auteurs

Simon Podnar (S)

Division of Neurology, Institute of Clinical Neurophysiology, University Medical Center Ljubljana, Ljubljana, Slovenia.

Classifications MeSH