Millward S F, Marsh J I, Peterson R A, Rasuli P, French G, Wilson C M, Tennenhouse J E, Morris D C, Simons M E, Formoso A F
Department of Radiology, Ottawa Civic Hospital, Ont., Canada.
J Vasc Interv Radiol. 1991 Nov;2(4):429-33. doi: 10.1016/s1051-0443(91)72212-4.
LG-Medical (LGM) vena cava filters were inserted percutaneously in 64 patients. Each case was followed after the filter insertion. Clinical follow-up was available in all patients; in 11 patients it was the only form of follow-up. Findings were available from autopsies in seven patients, plain abdominal radiographs in 42, and duplex sonograms of the insertion vein and inferior vena cava (IVC) in 46. A filter was inserted without major complication in all patients. The filter failed to open fully in four patients and was tilted in the IVC in 15. Recurrent pulmonary embolism was found in two patients (fatal in one), and inconsequential filter migration occurred in 11. Introduction vein thrombosis occurred in four patients. IVC thrombosis, demonstrated at autopsy or sonography, was found in 14 patients (22%) and was symptomatic in six (9%). This report suggests that the LGM filter is easy to introduce, and few complications are associated with insertion. The rate of caval thrombosis, however, may be higher than previously reported.
对64例患者经皮插入LG-医疗（LGM）腔静脉滤器。每例患者在滤器插入后均进行随访。所有患者均有临床随访；11例患者仅采用临床随访这种方式。7例患者有尸检结果，42例有腹部平片结果，46例有插入静脉及下腔静脉（IVC）的双功超声检查结果。所有患者插入滤器时均未出现重大并发症。4例患者的滤器未能完全打开，15例患者的滤器在IVC中发生倾斜。2例患者出现复发性肺栓塞（1例死亡），11例患者发生无明显影响的滤器移位。4例患者出现置入静脉血栓形成。在14例患者（22%）中发现尸检或超声检查证实的IVC血栓形成，其中6例（9%）有症状。本报告提示，LGM滤器易于置入，且置入相关并发症较少。然而，腔静脉血栓形成的发生率可能高于既往报道。
