Prevalence, correlates and impact of pain and cramps in anti-MAG neuropathy: a multicentre European study

Yusuf Rajabally, E. Delmont, F. L. Hiew, A.-c. Aubé-nathier, A.-m. Grapperon, J. Cassereau, S. Attarian

Research output: Contribution to journalArticle

Abstract

BACKGROUND AND PURPOSE: The frequency of pain and cramps is uncertain in anti-myelin associated glycoprotein antibody (anti-MAG) neuropathy. Whether these symptoms may affect function/quality of life is unknown.
METHODS:

A cross-sectional study of the prevalence, correlates and impact of pain, pain subtypes and cramps, their severity, frequency and anatomical distribution was performed for 55 clinically stable patients with anti-MAG neuropathy.

RESULTS:

Pain of any type was reported by 80% of subjects. The most common subtype was paraesthesiae and dysaesthesiae (70%). Cramps were reported by >60% of patients, with lower limb cramps in all and upper limb cramps in about 20%. Cramps affected daily activities in >30% of these subjects, sleep in 60%, ability to exercise in >30%. Total pain score correlated with several Short Form 36 health-related quality of life (SF-36 HR-QoL) measures (P < 0.05), with Inflammatory Rasch-built Overall Disability Scale (I-RODS) (P = 0.006) and 10-m timed walk (P = 0.019). An independent association was ascertained with I-RODS (P = 0.002). Different pain subtypes showed multiple associations with SF-36 HR-QoL measures and/or functional scales. Upper limb cramps had multiple SF-36 HR-QoL functional correlates, with an independent association with the Overall Neuropathy Limitation Score (ONLS) (P = 0.004). Cramp severity correlated with ONLS (P = 0.04) and I-RODS (P = 0.028) and inversely with level of physiotherapy input (P = 0.009). Cramp frequency was associated with tremor score (P = 0.004) and multiple SF-36 HR-QoL subsections.

CONCLUSIONS:

Neuropathic pain and cramps may affect function and quality of life in anti-MAG neuropathy. Optimizing treatments of these symptoms, including by adequate levels of physiotherapy, may be beneficial in affected patients and requires further research.

Original languageEnglish
JournalEuropean Journal of Neurology
VolumeEarly view
Early online date14 Oct 2017
DOIs
Publication statusPublished - 19 Oct 2017

Bibliographical note

© 2017 EAN. © 2017 John Wiley & Sons Ltd. This is the peer reviewed version of the following article: Prevalence, correlates and impact of pain and cramps in anti-MAG neuropathy, which has been published in final form at http://doi.wiley.com/10.1111/ene.13459. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.

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