Kawachi K, Kitamura S, Oyama C, Koh S, Morita R, Kawashima Y
Cathet Cardiovasc Diagn. 1983;9(3):303-8. doi: 10.1002/ccd.1810090310.
It is difficult to perform a retrograde left ventricular catheterization in patients having an aortic valve replacement. An improvement of the conventional transseptal catheterization (Brockenbrough method) led to a better success rate of catheterization. The fulcrum of the improved catheter was located 7 cm from the tip. Its curvature was approximately 270 degrees. Its tip was bent inward to form a pig-tail shape to prevent myocardial injury. This catheterization was performed 33 times in 32 patients. A 97% success rate was achieved. An exercise loading test was performed with a bicycle ergometer while this catheter was maintained in the left ventricle of a patient placed in a supine position. The catheter was well retained in the left ventricle and produced a minimal number of arrhythmias during exercise. The modification of this catheter has proved to be a better method of left ventricular catheterization in patients with an aortic valve replacement.
对于接受主动脉瓣置换术的患者，进行逆行左心室导管插入术很困难。对传统的经间隔导管插入术（布罗肯布罗方法）进行改进后，导管插入术的成功率更高。改进后的导管支点位于距尖端7厘米处。其弯曲度约为270度。其尖端向内弯曲形成猪尾形状以防止心肌损伤。该导管插入术在32例患者中进行了33次。成功率达到了97%。在一名仰卧位患者的左心室中保留该导管的同时，使用自行车测力计进行运动负荷试验。该导管在左心室中保留良好，运动期间产生的心律失常数量极少。事实证明，对这种导管进行改良是主动脉瓣置换术患者左心室导管插入术的一种更好方法。
