心内膜炎是指心脏瓣膜和心壁内膜的炎症,可分为感染性和非感染性两大类。前者是由细菌、霉菌、立克次体和部分病毒等经过血液直接感染而产生的心内膜炎。因此,动脉内膜感染所引起的炎症性病变,例如动脉导管末闭或主动脉缩窄等所并发的感染性动脉内膜炎亦包括在本病范围之内,故统称为感染性心内膜炎(Infective Endocarditis以下筒称IE)。非感染性心内膜炎主要由风湿病所引起,并包括先天性,免疫 Endocarditis refers to the inflammation of the heart valve and the wall of the intima, which can be divided into two major categories of infectious and non-infectious. The former is caused by bacteria, mold, rickettsia and some viruses through direct bloodstream infection caused by endocarditis. Therefore, inflammatory lesions caused by endarterial intimal infections such as infectious endarteritis complicated by arterial catheter dilatation or aortic constriction are also included in the scope of this disease, and are therefore collectively referred to as infective endocardium Infective Endocarditis (hereinafter referred to as IE). Non-infective endocarditis is mainly caused by rheumatism and includes congenital, immunological