Online ISSN: 2187-2988 Print ISSN: 0911-1794
特定非営利活動法人日本小児循環器学会 Japanese Society of Pediatric Cardiology and Cardiac Surgery
Pediatric Cardiology and Cardiac Surgery 31(3): 95-101 (2015)



千葉県循環器病センター小児科Department of Pediatrics, Chiba Cardiovasular Center ◇ 〒290-0512 千葉県千葉県市原市鶴舞575575 Tsurumai, Ichihara-shi, Chiba 290-0512, Japan

発行日:2015年5月1日Published: May 1, 2015

チアノーゼとは皮膚・粘膜の青紫色変化で,中枢性ないし末梢性チアノーゼでは毛細血管内血液の還元ヘモグロビン濃度が5 g/dl以上になると出現し,血液性チアノーゼでは異常ヘモグロビン血症が原因となる.チアノーゼの出現に際しては,様々な要素に影響されるため,必ずしも低酸素血症と同義ではない.チアノーゼが長期間持続するチアノーゼ性心疾患やアイゼンメンゲル症候群では,種々の全身合併症が発生するため,適切な管理が必要となる.

Cyanosis is a blue or purple discoloration of the skin or mucous membranes, which occurs when the level of deoxyhemoglobin in capillary blood is higher than 5 g/dL or when there is a high level of abnormal hemoglobin, such as methemoglobin. As the presence of cyanosis is dependent on various factors, it does not always indicate hypoxia. The recognition and appropriate management of multisystem disorders caused by long-standing cyanosis are needed in patients with cyanotic congenital heart disease or Eisenmenger’s syndrome.

Key words: hemoglobin; R-L shunt; hypoxemia; hyperviscosity syndrome; congenital heart disease

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