Journal of Yeungnam Medical Science

Sung Hwan Yun

3 Articles

Clinical and Electrophysiological Study on Guillain-Barre Syndrome.: Sung Hwan Yun, Jung Sang Hah, Sung Gyun Joo, Yong Kook Cho, Jung Hyun Kim, Ji Yeun Chung; Yeungnam Univ J Med. 2005;22(1):52-61. Published online June 30, 2005; DOI: https://doi.org/10.12701/yujm.2005.22.1.52

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BACKGROUND
Guillain-Barre syndrome is defined as a recognizable clinical entity that is characterized by rapidly evolving symmetric limb weakness, the loss of tendon reflexes, absent or mild sensory signs, and variable autonomic dysfunctions. This study evaluated the clinical and electrophysiological findings retrospectively. MATERIALS AND METHODS: Forty-five patients with Guillain-Barre syndrome, who were admitted to the Yeungnam University Hospital for six years from Jan. 1994 to Dec. 1999 were investigated. The correlation between the clinical manifestation and the electrophysiological study was evaluated. RESULTS: The male to female ratio was 1.8: 1 and there was a peak seasonal incidence in the winter. A preceding illness was noted in 66.7% of cases, and an upper respiratory tract infection was the most common one. The most common clinical manifestations were a loss of tendon reflex and ascending muscle weakness and paralysis. The cerebrospinal fluid examinations revealed, albuminocytologic dissociation in 33 cases (73.3%). Intravenous immunoglobulin therapy was performed in 29 cases (64.4%). The sequential electrophysiological abnormalities were most marked at 2 to 4 weeks after onset. At that time the most significant change was a decrease in the compound muscle action potential amplitude. These 45 patients with Guillain-Barre syndrome were subclassified using the clinical and electrophysiological data. CONCLUSION: The result in this study, concured with other research on the clinical and electrophysiological data of Guillain-Barre syndrome. However, an extensive and dynamic investigation is necessary to determine the reason for the peak seasonal incidence in winter.

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A Case of Combined Korean Medicine Treatment for Recurrent Limb Weakness after Guillain-Barré Syndrome Improvement: Case Report
Song-Mi Park, Sung-Woo Cho
Journal of Korean Medicine Rehabilitation.2019; 29(4): 135. CrossRef

A Case of Becker's Type Congenital Myotonia.: Sung Hwan Yun, Jung Sang Hah, Jun Lee; Yeungnam Univ J Med. 1999;16(1):125-130. Published online June 30, 1999; DOI: https://doi.org/10.12701/yujm.1999.16.1.125

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Abstract PDF: Congenital myotonia is a hereditary disorder of the skeletal muscle. The most characteristic features of the disease are myotonia and variable muscular hypertrophy. Molecular biologic investigations have revealed that mutations in the gene of the human skeletal muscle chloride ion channel protein are a cause of the disease. The Becker's type congenial myotonia is clinically similar to the autosomal dominantly inherited congenital myotonia (Thomsen's disease). Both disorders are characterized electrophysiologically by increased excitability of muscle fibers, reflected in clinical myotonia. In general, Becker's type congenital myotonia is more severe than Thomsen's disease in muscular hypertrophy and weakness. The authors recently experienced a 25-year-old female patient who has no family-related disease history and who has conspicuous muscular hypertrophy and the stiffness with muscles which occurred from the age of 3 or 4. Clinically she showed the authors a percussion myotonia. On electrophysiological study, exercise and repetitive stimulation of the abductor digiti quinti muscle disclosed a decline in the compound muscle action potential. Biopsy of biceps muscle revealed enlargement of muscle fibers with marked nuclear internalization. After the oral taking the Mexiletine, the patient showed a favorable turn a little with her stiffness of muscles. So we authors are reporting one case of Becker's type congenital myotonia with review of literatures.

A case of primary antiphospholipid antibody syndrome showing vegetation on the mitral valve through echocardiography.: Seung Yeop Lee, Seung Kwon Park, Sung Hwan Yun, Yun Seok Jung, Hyen Jik Kim, Sung Hwan Lim, Jung Sang Hah, Wook Nyeun Kim; Yeungnam Univ J Med. 1998;15(2):350-358. Published online December 31, 1998; DOI: https://doi.org/10.12701/yujm.1998.15.2.350

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Abstract PDF: Antiphospholipid antibody syndrome(APS) is a well-known clinical syndrome characterized by recurrent arterial or venous thromboses, recurrent fetal loss, thrombocytopenia, together with high titers of sustained anticardiolipin antibody(aCL) or lupus anticoagulant(LA). Although systemic lupus erythematosus(SLE) and APS may coexist, a high proportion of patients manifesting the APS do not suffer from classical lupus or other connective tissue disease. The patient has been defined as having a primary antiphospholipid antibody syndrome. We experienced one case of primary APS with recurrent fetal loss, recurrent cerebral infarctions, positive anticardiolipin antibody IgG and fluttering vegetation on the mitral valve, without other connective tissue diseases including SLE. Forty-three old female had 2 out of 11 criteria for the diagnosis of SLE, such as thrombocytopenia and positive antinuclear antibody, but did not meet whole criteria. The patient was treated with ticlopidine, and anticoagulant therapy was recommended.

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