Parvovirus B19 감염으로 발생된 Aplastic Crisis 3례

Aplastic Crisis Secondary to Parvovirus B19 Infection

저자들은 유전성 구상적혈구증으로 추적 관찰 중인 7세 남아와 용혈성빈혈의 기왕력이 없던 11세, 8세 환아가 심한 범혈구 감소증으로 내원하여 parvovirus B19 감염에 의한 골수무형성 위기로 진단하고 수혈 및 정주용 면역글로불린으로 1-2주만에 모두 호전된 유전성 구상적혈구증 환아 3례를 보고하는 바이다.

Human parvovirus(HPV) B19 infection causes erythema infectiosum in children, sometimes red cell aplastic crisis with hemolytic anemia and chronic bone marrow failure in immunocompromised hosts. HPV B19 is directly cytotoxic for erythroid progenitor cells and inhibits erythropoiesis. Infrequently, HPV B19 inhibits hematopoiesis of three cell lineages and causes transient pancytopenia in patients with hemolytic disorders. We report three patients with hereditary spherocytosis who developed transient aplastic crisis. A HPV B19 infection was confirmed by IgM anti-B19 parvovirus titers and characteristic findings of bone marrow examination as the causative agent associated with severe pancytopenia. Three patients recovered spontaneously after a short period of supportive care with red cell transfusions and intravenous immunoglobulin.