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KMID : 0363220110490110961
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Korean Journal of Dermatology
2011 Volume.49 No. 11 p.961 ~ p.968
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Clinical Study of Motor Paresis in In-patients with Herpes Zoster
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Son Hyun-Ho
Shim Hyun-Soo
Lee Sook-Kyung
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Abstract
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Background: Although herpes zoster primarily affects afferent sensory neurons, it may complicated by motor nerve involvement in 0.5% to 5% of cases. However herpes zoster-induced muscle paresis is still under-recognized by dermatologists, and there has been insufficient clinical investigation of these conditions.
Objective: This study was conducted to investigate the clinical aspects of motor nerve involvement of herpes zoster.
Methods: We retrospectively reviewed the data of 711 patients with herpes zoster who had been admitted to our hospital in the departments of dermatology, ophthalmology, otorhinolaryngology, neurology, neurosurgery and rehabilitation medicine between 2005 and 2010.
Results: Among the 711 patients with herpes zoster, 15 patients had motor paresis (2.1%). 11 patients (73.3%) had facial nerve palsy including one patient who had accompanying vagus nerve palsy. Besides, one case of trochlear nerve palsy, one case of hypoglossal nerve palsy, one case of upper limb paresis and one case of lower limb paresis were noted. Associated underlying diseases were observed in nine patients (60.0%). Duration of motor weakness ranged from 1 month to 4 years. Twelve patients (80.0%) achieved complete recovery.
Conclusion: In our patient population, the incidence of motor involvement of herpes zoster was higher in cranial nerves, especially the facial nerve, than in spinal nerves. Although motor nerves are usually involved in relation to dermatome, cranial nerve palsy may occur regardless of its dermatome because of complicated anatomical association. The majority of cases recovered completely without any complications. Further prospective investigation with a large group of patients is necessary to better understand the epidemiology of motor nerve involvement of herpes zoster.
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KEYWORD
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Herpes zoster, Motor paresis
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