McCowan T C, Ferris E J, Carver D K, Molpus W M
Department of Radiology, University of Arkansas for Medical Sciences, Little Rock.
J Vasc Interv Radiol. 1992 May;3(2):401-8. doi: 10.1016/s1051-0443(92)72053-3.
Simon nitinol vena caval filters were placed percutaneously in 20 patients. Follow-up (average, 14 months) data were available for 16 patients, and four patients were lost to follow-up. There were no proved or suspected cases of pulmonary embolism after filter insertion. Complications encountered included caval penetration (n = 5, one acute and four at follow-up), caval thrombus (n = 4, two determined radiologically and two clinically), postplacement deep venous thrombosis (n = 2, one radiologic and one clinical), filter migration (n = 1), and delayed fracture of a filter leg (n = 2). Although no deaths or significant morbidity resulted from any complication, the relatively high complication rate, especially of significant caval penetration (documented in 25% of filter insertions), merits continued short- and long-term assessment of patient status after filter placement.
在20例患者中经皮置入了西蒙镍钛诺腔静脉滤器。16例患者有随访数据（平均随访14个月），4例患者失访。滤器置入后没有确诊或疑似肺栓塞病例。出现的并发症包括腔静脉穿透（n = 5，1例急性，4例随访时发现）、腔静脉血栓形成（n = 4，2例经放射学确诊，2例经临床确诊）、置入后深静脉血栓形成（n = 2，1例经放射学确诊，1例经临床确诊）、滤器移位（n = 1）以及滤器支腿延迟断裂（n = 2）。虽然没有任何并发症导致死亡或严重发病，但相对较高的并发症发生率，尤其是严重腔静脉穿透（在25%的滤器置入中有记录），值得在滤器置入后继续对患者状态进行短期和长期评估。
