Cho K J, Greenfield L J, Proctor M C, Hausmann L A, Bonn J, Dolmatch B L, Eschelman D J, Flick P A, Kinney T B, Marx M V, McFarland D R, Ohki S K, Pais S O, Sussman S K, Waltman A C
Department of Radiology, University of Michigan, Ann Arbor 48109, USA.
J Vasc Interv Radiol. 1997 Mar-Apr;8(2):181-7. doi: 10.1016/s1051-0443(97)70536-0.
To evaluate a new percutaneous Greenfield filter with an alternating hook design and over-the-wire delivery system.
The alternating hook stainless steel Greenfield filter was evaluated in a prospective clinical trial between March 10, 1994, and January 27, 1995. Filters were placed in 75 patients in nine clinical centers and follow-up with radiographs and ultrasound scans was carried out at 30 days.
Clinical trial results revealed successful placement in all patients. There were four cases of filter limb asymmetry (5.3%) without clinical sequelae, with one incidence of failure to span the cava. No significant migration was found. There were no clinically suspected pulmonary emboli, but one instance of probable caval penetration (1.7%) did occur. Caval occlusion was documented in three patients (5%).
The percutaneous stainless steel Greenfield filter provides ease of insertion and improved deployment while maintaining the high standards of efficacy and safety associated with the standard and titanium Greenfield filters.
评估一种采用交替钩设计和经导丝输送系统的新型经皮格林菲尔德滤器。
1994年3月10日至1995年1月27日期间，对交替钩不锈钢格林菲尔德滤器进行了一项前瞻性临床试验。在9个临床中心为75例患者植入了滤器，并在30天时通过X线片和超声扫描进行随访。
临床试验结果显示所有患者均成功植入。有4例滤器支腿不对称（5.3%），无临床后遗症，有1例未能跨越下腔静脉。未发现明显移位。未出现临床疑似肺栓塞，但确实发生了1例可能的下腔静脉穿孔（1.7%）。有3例患者（5%）记录到下腔静脉闭塞。
经皮不锈钢格林菲尔德滤器易于插入且展开性更佳，同时保持了与标准型和钛制格林菲尔德滤器相关的高效性和安全性高标准。
