Neuropathic pain in patients with Charcot-Marie-Tooth type 1A
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Only several studies analyzed the characteristics of neuropathic pain (NeP) more extensively in patients with Charcot-Marie-Tooth type 1A (CMT1A). Therefore, we sought to determine the frequency and features of NeP in CMT1A patients and to assess the association between NeP and sociodemographic and clinical characteristics of patients with CMT1A.
Our research included 51 genetically diagnosed CMT1A patients. The International Association for the Study of Pain (IASP) criteria were used for diagnosis of NeP. PainDETECT questionnaire (PD-Q) was used to assess NeP features. The Medical Research Council (MRC) Sum Score, CMT Neuropathy Score (CMTNS), Overall Neuropathy Limitation Scale (ONLS) score, and Beck Depression Inventory were also used.
NeP was present in 15 (29.4%) patients with CMT1A. The average intensity of pain was 5.7 ± 2.2 out of 10. The most sensitive neuropathic symptoms were numbness, then tingling, and burning sensations, while the most specific symptom was allodynia. Patients with NeP more frequently reported pain in the back (p < 0.01) and the trunk (p < 0.05). Patients with NeP had more pronounced disability of the upper extremities and overall disability, as assessed by the ONLS score (p < 0.05). Depression was more frequent in patients with NeP compared with patients without NeP (66.7 to 13.9%, p < 0.01).
NeP was present in almost one-third of the patients with CMT1A and it was moderate on average. Presence of NeP was associated with worse functional disability and depression.
KeywordsCharcot-Marie-Tooth disease type 1A Neuropathic pain Disability Depression
Compliance with ethical standards
This study was approved by the Ethical Committee of the Faculty of Medicine, University of Belgrade, and informed consent was obtained from all individual participants included in the study.
Conflict of interest
The authors declare that they have no conflict of interest.
- 2.Saporta MA (2014) Charcot-Marie-Tooth disease and other inherited neuropathies. Continuum (MinneapMinn) 20:1208–1225Google Scholar
- 10.Aarskog NK, Vedeler CA (2000) Real-time quantitative polymerase chain reaction. A new method that detects both the peripheral myelin protein 22 duplication in Charcot-Marie-Tooth type 1A disease and the peripheral myelin protein 22 deletion in hereditary neuropathy with liability to pressure palsies. Hum Genet 107(5):494–498CrossRefGoogle Scholar