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臨床検査58巻3号

2014年03月発行

文献概要

今月の特集1 検査で切り込む溶血性貧血

発作性夜間ヘモグロビン尿症

著者: 大里真幸子1 西村純一1 金倉譲1

所属機関: 1大阪大学大学院 医学系研究科血液・腫瘍内科学

ページ範囲:P.303 - P.309

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●発作性夜間ヘモグロビン尿症(PNH)診断には,溶血所見とGPIアンカー型膜蛋白(GPI-AP)の欠損血球(PNHタイプ血球)を検出することが重要である.

●溶血所見として,血清乳酸デヒドロゲナーゼ(LDH)上昇,網赤血球増加,間接ビリルビン値上昇,血清ハプトグロビン値低下が参考になる.通常,1%以上のPNHタイプ血球があれば溶血所見を呈する.

●骨髄不全症候群〔再生不良性貧血(AA),骨髄異形成症候群(MDS)〕における微少PNHタイプ血球(0.003%)の検出は,予後と治療選択において有用である可能性がある.

●PNHの症状は多彩で,時に診断に苦慮することがあるが,さまざまな症状からPNHを疑ってフローサイトメトリー(FCM)を用いた検査を行うことが診断において重要である.

参考文献

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掲載誌情報

出版社:株式会社医学書院

電子版ISSN:1882-1367

印刷版ISSN:0485-1420

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