Warren S G, Barnett J C
West Virginia University Health/Sciences Center, Charleston Division.
Cathet Cardiovasc Diagn. 1990 Jul;20(3):212-5. doi: 10.1002/ccd.1810200314.
A new technique to exchange one angioplasty guiding catheter for another with the guide wire in place and across a coronary artery stenosis has been developed to decrease the dangers of having to recross the stenosis with a guide wire. This technique utilizes a regular extended angioplasty guide wire and enables the exchange of guiding catheters during the angioplasty procedure. In 683 consecutive angioplasty procedures by one operator, this technique has been attempted 57 times in 43 patients (6.3%) and has been successful 51 times (90%). The only failures were when the second catheter had a large or open curve (left Amplatz II, 5/22 unsuccessful or multipurpose, 1/3 unsuccessful). There have been no complications. We conclude that exchange of a guiding catheter over a guide wire by the method described is safe and helpful in cases where different guiding catheters are needed for back-up power once the lesion has been crossed with a guide wire.
一种在导丝就位并穿过冠状动脉狭窄部位的情况下，将一根血管成形术引导导管换成另一根的新技术已经研发出来，以降低必须使用导丝再次穿过狭窄部位的风险。这项技术利用常规的延长型血管成形术导丝，并能够在血管成形术过程中更换引导导管。在一位操作者连续进行的683例血管成形术操作中，该技术在43例患者（6.3%）中尝试了57次，成功51次（90%）。仅有的失败情况是当第二根导管有大的或开放的弯曲时（左安普茨II型，22例中有5例不成功；多功能导管，3例中有1例不成功）。未出现并发症。我们得出结论，对于在使用导丝穿过病变部位后需要不同引导导管提供备用动力的情况，通过所述方法在导丝上更换引导导管是安全且有帮助的。
