Human T-Lymphotropic Virus Type I Associated Myelopathy Treated Effectively with Lymphocytapheresis Using a Leukocyte Removal Filter

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The patient, a 61-year-old woman, received a blood transfusion at the age of 33 years. Weakness of the lower extremities developed at the age of 42 and the diagnosis of human T-lymphotropic virus type I (HTLV-I) associated myelopathy was made. Somatosensory evoked potential examination showed that the latency of P27 evoked by peroneal nerve stimulation was 44 msec. Lymphocytapheresis was performed 3 times with one-week intervals using a leukocyte removal filter. The muscle weakness began to improve on the second day after the second lymphocytapheresis and the sensory impairment began to improve on the third day after the third lymphocytapheresis. The delayed latency of P27 improved after the lymphocytapheresis. The effectiveness of lymphocytapheresis in this case suggests that lymphocytes are involved in the pathogenesis of HTLV-I associated myelopathy.(Internal Medicine 34: 1215-1219, 1995)
社団法人日本内科学会の論文
1995-12-01