患者,男,18岁。夜间体温波动于38℃～39℃1个月,在当地医院应用头孢类抗生素效果不明显,转入我院。听诊可于胸骨左缘2、3肋间可闻及双期杂音,杂音向腋窝传导,二尖瓣听诊区可闻及3/VI收缩期杂音,股动脉枪击音阳性。心脏彩超示主动脉瓣及二尖瓣均可见赘生物,同时血培养中检测出白 Patient, male, 18 years old. Night temperature fluctuations at 38 ℃ ~ 39 ℃ 1 month, cephalosporin antibiotics in the local hospital effect is not obvious, transferred to our hospital. Auscultation can be found on the left border of the sternal 2 and 3 intercostal can be heard and double noise, murmurs to the axillary conduction, mitral auscultation area can be heard and 3 / VI systolic murmur, femoral artery shots were positive. Echocardiography showed aortic valve and mitral valve are visible vegetation, while blood culture detected in white