Journal
JOURNAL OF NEUROLOGY NEUROSURGERY AND PSYCHIATRY
Volume -, Issue -, Pages -Publisher
BMJ PUBLISHING GROUP
DOI: 10.1136/jnnp-2021-328489
Keywords
NEUROGENETICS; NEUROIMMUNOLOGY; NEUROMUSCULAR; NEUROPATHY; PERIPHERAL NEUROPATHOLOGY
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Distal sensory polyneuropathy (DSP) is characterized by length-dependent, sensory-predominant symptoms and signs, including chronic pain, tingling, and poor balance. It can be challenging to diagnose and manage. Recent advances in understanding the causes and potential therapies for DSP are discussed in this review.
Distal sensory polyneuropathy (DSP) is characterised by length-dependent, sensory-predominant symptoms and signs, including potentially disabling symmetric chronic pain, tingling and poor balance. Some patients also have or develop dysautonomia or motor involvement depending on whether large myelinated or small fibres are predominantly affected. Although highly prevalent, diagnosis and management can be challenging. While classic diabetes and toxic causes are well-recognised, there are increasingly diverse associations, including with dysimmune, rheumatological and neurodegenerative conditions. Approximately half of cases are initially considered idiopathic despite thorough evaluation, but often, the causes emerge later as new symptoms develop or testing advances, for instance with genetic approaches. Improving and standardising DSP metrics, as already accomplished for motor neuropathies, would permit in-clinic longitudinal tracking of natural history and treatment responses. Standardising phenotyping could advance research and facilitate trials of potential therapies, which lag so far. This review updates on recent advances and summarises current evidence for specific treatments.
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