Ralston M D, Woodfield S, Halvorsen R, Pizzo S V, Thompson W M
Invest Radiol. 1982 Mar-Apr;17(2):171-7. doi: 10.1097/00004424-198203000-00011.
Arterial occlusion by direct-current transcatheter electrocoagulation (TCEC) has been developed experimentally and used successfully in clinical situations. The major shortcoming of the technique has been the lengthy time necessary for occlusion of larger arteries. In the present study we attempted to decrease the time necessary for TCEC occlusion of the renal and femoral arteries of heparinized mongrel dogs. The results showed that the occlusion time could be significantly decreased, either by increasing the TCEC current from 15 ma to 30 or 60 ma, or by using a Meditech balloon catheter to occlude the artery during TCEC. The combination of higher current and simultaneous balloon occlusion consistently produced permanent occlusion of arteries up to 7 mm in diameter in 15 minutes or less. Balloon occlusion with TCEC is significantly faster than without this modification and makes the technique of TCEC more applicable for human use and for continued experimental study than any previous refinements.
经导管直流电电凝法（TCEC）造成动脉闭塞已在实验中得到发展，并成功应用于临床。该技术的主要缺点是闭塞较大动脉所需时间较长。在本研究中，我们试图缩短肝素化杂种犬肾动脉和股动脉TCEC闭塞所需的时间。结果表明，通过将TCEC电流从15毫安增加到30或60毫安，或者在TCEC期间使用美迪泰克球囊导管闭塞动脉，闭塞时间可显著缩短。更高电流与同步球囊闭塞相结合，在15分钟或更短时间内始终能使直径达7毫米的动脉实现永久性闭塞。与未作此改进相比，TCEC联合球囊闭塞明显更快，并且使TCEC技术比以往任何改进方法更适用于人体应用和持续的实验研究。
