Sensory neuronopathies: A case series and literature review

Journal of the Peripheral Nervous System - Tập 26 Số 1 - Trang 66-74 - 2021
A. Sancho Saldaña1,2, Mohamed Mahdi‐Rogers2, Robert D.M. Hadden2
1Department of Neurology, Hospital Universitario Miguel Servet, Zaragoza, Spain
2Department of Neurology, King's College Hospital NHS Foundation Trust, Denmark Hill, London, UK

Tóm tắt

AbstractSensory neuronopathies are heterogeneous disorders of dorsal root ganglia. The clinical and laboratory features in a single‐centre series, including response to treatment and outcome have been described. They retrospectively included 54 patients meeting Camdessanché et al (2009) criteria for sensory neuronopathy. The patients were classified according to their likely aetiology and analysed their demographic, clinical, neurophysiological, histological and spinal MRI features. The outcome with the modified Rankin Scale (mRS) was evaluated, and the response to treatment was assessed. About 54 patients were included (18 male; median age 54.5 years). The most common initial symptoms were hypoaesthesia, paraesthesia, ataxia and pain. Half of patients had a slow onset, greater than 12 months before seeing a neurologist. The aetiology as possibly inflammatory (meaning nonspecific laboratory evidence of immune abnormality) in 18 patients (33%), paraneoplastic 8 (15%), autoimmune 7 (13%) and idiopathic 6 (11%) was classified. About 31 patients received immune therapy of which 11 (35%) improved or stabilised. Corticosteroids were the most used treatment (24 patients) and cyclophosphamide had the highest response rate (3/6, 50%). At the final follow up (median 24 months) 67% had mRS ≥3 and 46% mRS ≥4, including 15% who died. Worse outcome was associated with generalised areflexia and pseudoathetosis by logistic regression, and with motor involvement and raised CSF protein by univariate analysis. Sensory neuronopathies caused severe disability, especially in patients with generalised areflexia and pseudoathetosis. Of those without an obvious cause, most had some evidence of dysimmunity. Some patients had a positive response to immunotherapy, but rarely enough to improve disability much.

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Journal of the Peripheral Nervous System

Tập 26 Số 1

66-74

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