Nocardia asteroidesによる自己大動脈弁感染性心内膜炎の1例

Native Aortic Valve Endocarditis Caused by Nocardia asteroides；Report of a Case

ノカルジア症はまれな感染症で，日和見感染症としての発症が主体である．肺，皮膚，中枢神経系への感染が主で，心臓弁への感染はまれである．われわれは，Nocardia asteroidesによる自己大動脈弁感染性心内膜炎（IE）症例を経験したので報告する．

Infection by Nocardia sp. is rare and usually affects immuno-depressed patients, such as those receiving chemotherapy and long-term steroid therapy. Cardiac involvement is uncommon and usually occurs as endocarditis. We present a case of native aortic valve endocarditis caused by Nocardia asteroides. Aortic valve translocation method was chosen because of extensive root infection with major disruption of the aortic annulus. Over 2 years after the surgery, there is no recurrence and no enlargement of the aortic annulus.