Fellmeth B D, Bookstein J J, Lurie A L, Dillard J P
Department of Radiology, University of California, San Diego Medical Center 92103.
Radiology. 1990 Apr;175(1):71-4. doi: 10.1148/radiology.175.1.2138343.
The authors retrospectively reviewed records of percutaneous transluminal angioplasties performed at three institutions. Seven stenotic lesions in peripheral vessels were identified that had progressed to total occlusion in the interval between the time that diagnostic run-off angiography and attempted angioplasty were performed. The post-angiographic occlusions were 3-16 cm long (mean, 9 cm), and the interval between diagnostic angiography and discovery of the occlusions ranged from 1 hour to 91 days (median, 2 days). Treatment of the occlusions was riskier and more difficult than simple angioplasty of the original stenoses. The authors conclude that some aspect of the angiographic procedure probably precipitated the transition from stenosis to occlusion. This complication can be prevented by preparation for angioplasty immediately after diagnostic run-off angiography or perhaps by use of heparin during the diagnostic study.
作者回顾性分析了在三个机构进行的经皮腔内血管成形术的记录。确定了周围血管中的七个狭窄病变，这些病变在诊断性流出血管造影和尝试进行血管成形术之间的间隔期进展为完全闭塞。血管造影后的闭塞长度为3 - 16厘米（平均9厘米），诊断性血管造影与闭塞发现之间的间隔时间为1小时至91天（中位数为2天）。闭塞的治疗比单纯对原始狭窄进行血管成形术风险更高且更困难。作者得出结论，血管造影过程的某些方面可能促成了从狭窄到闭塞的转变。通过在诊断性流出血管造影后立即准备血管成形术或可能在诊断研究期间使用肝素，可以预防这种并发症。
