Sweeney L J, Rosenquist G C
Cathet Cardiovasc Diagn. 1977;3(4):385-9. doi: 10.1002/ccd.1810030408.
The anatomy of the limbus and its relationship to the fossa ovalis were studied in 90 normal human hearts in an attempt to explain the clinical success of blunt trans-septal catheterization. Previously reported rates of patent foramen ovale (25-35% of adult specimens) were confirmed, well below the reported rate of success for blunt trans-septal catheterization (67-87%). A possible reason for this success is the fragile attachment of the fossa ovalis to its limbus in nearly all hearts without persistent patency.
为了解释钝性经房间隔导管插入术的临床成功率，我们对90颗正常人类心脏的卵圆窝及其与卵圆窝缘的关系进行了解剖学研究。先前报道的卵圆孔未闭发生率（成年标本的25%-35%）得到了证实，远低于报道的钝性经房间隔导管插入术的成功率（67%-87%）。几乎在所有没有持续开放的心脏中，卵圆窝与其边缘附着脆弱，这可能是该手术成功的一个原因。
