Sohn S, Kashani I A, Rothman A
Department of Pediatrics, University of California San Diego, USA.
Cathet Cardiovasc Diagn. 1995 Jan;34(1):35-40. doi: 10.1002/ccd.1810340309.
Seven patients underwent attempted low pressure balloon dilation of stenotic conduits or homografts from right ventricle to pulmonary artery (n = 5), in the aortic valve position (n = 1), or from right atrium to left pulmonary artery (n = 1). In the right ventricle to pulmonary artery group, mean gradient reduction was only 17%. At follow-up, two patients underwent surgical conduit replacement, one had a stent implanted at cardiac catheterization, the other two are awaiting surgical intervention. The patient with a homograft in the aortic valve position had a good initial result but restenosed within 1 year and underwent a pulmonary autograft operation. The patient with the Fontan homograft stenosis had transient obstruction relief but subsequently required stent implantation. Low-pressure balloon dilation of conduits or homografts is only partially and transiently successful. Whether stent implantation will offer better long-term results remains to be determined.
7例患者接受了狭窄管道或同种移植物的低压球囊扩张术，这些管道或移植物包括右心室至肺动脉（n = 5）、主动脉瓣位置（n = 1）或右心房至左肺动脉（n = 1）。在右心室至肺动脉组中，平均压力阶差仅降低了17%。随访时，2例患者接受了手术管道置换，1例在心脏导管插入术时植入了支架，另外2例正在等待手术干预。主动脉瓣位置植入同种移植物的患者最初效果良好，但在1年内发生再狭窄并接受了自体肺动脉移植手术。Fontan同种移植物狭窄的患者梗阻得到短暂缓解，但随后需要植入支架。管道或同种移植物的低压球囊扩张仅部分且短暂成功。支架植入是否能带来更好的长期效果仍有待确定。
