McCowan T C, Ferris E J, Carver D K, Baker M L
Department of Radiology, University of Arkansas for Medical Sciences, Little Rock 72205.
AJR Am J Roentgenol. 1990 Jul;155(1):177-81. doi: 10.2214/ajr.155.1.2112841.
Amplatz vena caval filters were inserted percutaneously in 30 patients. Radiologic and clinical follow-up was available in 24 patients (cavogram, CT, or sonography in 20 patients, plain abdominal radiographs in two, and lower extremity venograms in two). Clinical follow-up only was available in four patients, and autopsy reports were available in two patients without radiologic follow-up. The filter was inserted without difficulty in 29 (97%) of the patients. Complications after insertion included recurrent pulmonary embolism in two (7%) of 30, caval thrombosis in seven (23%) of 30, ipsilateral lower extremity deep venous thrombosis after placement of the filter in one (3%) of 30, caval penetration in two (10%) of 20, and caval stenosis in one (5%) of 20. No migration of the filter was noted. Our experience suggests that the Amplatz vena caval filter is easy to insert and adequately prevents recurrent pulmonary embolism but is associated with a relatively high rate of caval thrombosis.
30例患者经皮插入了安普乐仕下腔静脉滤器。24例患者有放射学和临床随访资料（20例行腔静脉造影、CT或超声检查，2例行腹部平片检查，2例行下肢静脉造影）。4例患者仅有临床随访资料，2例患者无放射学随访资料但有尸检报告。29例（97%）患者滤器插入顺利。插入后并发症包括：30例中有2例（7%）发生复发性肺栓塞，30例中有7例（23%）发生腔静脉血栓形成，30例中有1例（3%）在滤器置入后发生同侧下肢深静脉血栓形成，20例中有2例（10%）发生腔静脉穿透，20例中有1例（5%）发生腔静脉狭窄。未发现滤器移位。我们的经验表明，安普乐仕下腔静脉滤器易于插入，能有效预防复发性肺栓塞，但腔静脉血栓形成发生率相对较高。
