[病因病理]為先天性畸形,非家族性散發(fā)性發(fā)病。最常見(jiàn)的病變是主動(dòng)脈竇(Valsaevas sinuses)上緣的擱板狀增厚或嵴狀增厚,主動(dòng)脈環(huán)狀狹窄或長(zhǎng)形節(jié)段性狹窄。主動(dòng)脈瓣尖至嵴有纖維環(huán)。[診斷]臨床男性多見(jiàn),嬰兒時(shí)有發(fā)紺,左右臂動(dòng)脈及......(本文共 205 字) [閱讀本文] >>
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 [病因病理]為先天性畸形,非家族性散發(fā)性發(fā)病。最常見(jiàn)的病變是主動(dòng)脈竇(Valsaevas sinuses)上緣的擱板狀增厚或嵴狀增厚,主動(dòng)脈環(huán)狀狹窄或長(zhǎng)形節(jié)段性狹窄。主動(dòng)脈瓣尖至嵴有纖維環(huán)。[診斷]臨床男性多見(jiàn),嬰兒時(shí)有發(fā)紺,左右臂動(dòng)脈及......(本文共 205 字) [閱讀本文] >>