动脉导管未闭(PDA)是一种常见的先天性心脏病,随着Amplatzer封堵器的引进及近几年国产封堵器的广泛应用,介入封堵术已成为该病的首选方法,但在操作过程中一个较常见的问题是导丝及导管无法经肺动脉通过PDA进入降主动脉,碰到此种情况,国内较多采用的是逆行导丝法即导丝从主动脉 Patent ductus arteriosus (PDA) is a common congenital heart disease. With the introduction of Amplatzer occluders and the widespread application of homemade occluders in recent years, it has become the first choice of the disease In the operation of a more common problem is the guide wire and catheter can not be through the PDA into the descending aorta through the PDA, in this case, the more domestic use is the retrograde guide wire method that the guide wire from the aorta