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Ocular involvement in mitochondrial myopathies Masaru Inatani 1 , Hitoshi Takagi 1 , Mihori Kita 1 , Satoshi Kashii 1 , Yoshihito Honda 1 , Kengo Uemura 2 , Akio Ikeda 3 1Department of Ophthalmology and Visual Sciences, Graduate School of Medicine, Kyoto University. 2Dept of Neurol, Graduate Sch of Med, Kyoto Univ 3Dept of Brain Pathophysiol, Graduate Sch of Med, Kyoto Univ pp.989-993
Published Date 1997/5/15
DOI https://doi.org/10.11477/mf.1410908787
  • Abstract
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We reviewed 12 cases of mitochondrial myopathy regarding ocular involvements. The series included 6 cases of Kearns-Sayre syndrome (KSS) , 2 cases of mitochondrial myopathy, encephalopathy, lactic acidosis and stroke-like episodes (MELAS) and 1 case of myoclonus epilepsy associated with ragged-red fibers (MERRF) . Some patients showed subnormal electroretinogram despite normal retinal appearance and visual acuity. Patients with KSS showed, occasinally, the triad of external ophthalmoplegia, pigmentary retinopathy and heart block but rather a higher incidence of absence of retinal pigment epithelial degeneration. A case of MELAS showed pigment epithelial degeneration with optic atrophy which is a common feature in KSS and MERRF. A juvenile case of MERRF showed bilateral mature cataract. Some cases in the series showed clinical features as different from those reported to be characteristic for KSS, MELAS and MERRF. Due precaution is necessary regarding unexpected ocular complications even in the absence of visual disturbances.


Copyright © 1997, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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