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Ann Clin Neurophysiol > Volume 15(2); 2013 > Article
Ann Clin Neurophysiol. 2013; 15(2): 48-52.
Published online December 31, 2013.
doi: https://doi.org/10.14253/kjcn.2013.15.2.48
Clinical and Electrophysiological Characteristics of Meralgia Paresthetica
Mun Hee Choi, Hanul Park, Young In Eom, and In Soo Joo
Department of Neurology, Ajou University School of Medicine, Suwon, Korea
Corresponding Author: In Soo Joo ,Tel: +82-31-219-5175, Fax: +82-31-219-5178, Email: isjoo@ajou.ac.kr
Received May 6, 2013    Accepted December 5, 2013
Copyright © 2013 The Korean Society of Clinical Neurophysiology
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Background: Meralgia paresthetica (MP) is a mononeuropathy affecting the lateral femoral cutaneous nerve. The disease is often diagnosed clinically, but electrophysiological tests play an important role. The aim of this study is to clarify clinical characteristics of MP as well as the role of sensory nerve conduction study (NCS) in the diagnosis of MP.
Sixty-five consecutive patients with clinical diagnosis of MP between March 2001 and June 2012 were retrospectively reviewed at a single tertiary center. General demographics, clinical characteristics and sensory NCS findings were investigated. Measurements of sensory NCS included the baseline-to-peak amplitude, side-to-side amplitude ratio and the conduction velocity. To compare between the normal and abnormal NCS groups, independent t-tests and chisquare test were performed.
Sixty-five patients had male predominance (56.9%) with mean age of 48.4±13.4 years (range: 16-75). Seven patients (13.5%) had undergone operation or procedure before the symptom onset. The sensory nerve action potentials were obtainable in 52 (80%) of 65 clinically diagnosed MP patients. Sensory NCS revealed abnormalities in 38 patients (73.1%), and others (n=14, 26.9%) showed normal findings. Between the normal and abnormal NCS groups, there is no statistically significant difference on demographics or clinical features.
We clarify the clinical features and sensory NCS findings of MP patients. Due to several limitations of sensory NCS, the diagnosis of MP could be accomplished both clinically and electrophysiologically.
Key words: Meralgia paresthetica, Lateral femoral cutaneous nerve, Nerve conduction study
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