title: Use of Spider Filter Embolic Protection Device During Endovascular Revascularization of Acute Thromboembolic Occlusion of Superficial Femoral Artery.
abstract: OBJECTIVE
  To retrospectively evaluate the safety and efficacy of the Spider filter embolic protection device (EPD) in protecting patients from distal migration of thromboemboli during revascularization of acute superficial femoral artery (SFA) occlusion secondary to thromboemboli.
  
  
  METHODS
  Data from all patients at our institution who had EPD placement for embolic protection during endovascular revascularization for acute thromboembolic occlusion of the SFA were analyzed.
  
  
  RESULTS
  From April 2007 to June 2014, a total of 14 patients had EPD placement during endovascular revascularization for acute SFA occlusion secondary to thromboemboli. All patients presented with acute onset of limb ischemia, and further work-up with imaging studies demonstrated thromboembolic occlusions. The duration from onset of symptoms to revascularization was 7.0 ± 2.7 h (range 2-14 h). An aspiration technique for thrombectomy was used in all 14 cases (aspiration alone, 6 cases; aspiration plus urokinase, 7 cases; additional angioplasty after urokinase, 1 case). Spider filter EPDs were successfully placed at the target in all 14 cases, and the thromboemboli were captured in 13/14 (92.9%) cases. Successful reestablishment of the SFA flow without distal branch embolism occurred in all 14 cases. There were no EPD-related complications. During a mean 32.2 ± 20.2 months of follow-up, 13 patients remained asymptomatic; one patient who underwent PTA during the procedure reported limb coolness and fatigue 6 months later because of recurrent atherosclerotic stenosis.
  
  
  CONCLUSIONS
  The Spider filter EPD can be safe and effective in protecting patients from distal branch embolism when they undergo an endovascular thrombectomy procedure.
authors.affiliation: Department of Interventional Radiography, No. 2 People's Hospital of Changzhou, Nanjing Medical University, Xing Long Road 29#, Chang Zhou, 213003, Jiangsu Province, China. jiazhongzhi.1998@163.com.
authors.forename: Zhongzhi
authors.initials: Z
authors.lastname: Jia
authors.affiliation: Department of Interventional Radiography, No. 2 People's Hospital of Changzhou, Nanjing Medical University, Xing Long Road 29#, Chang Zhou, 213003, Jiangsu Province, China. zhaojinwei@163.com.
authors.forename: Jinwei
authors.initials: J
authors.lastname: Zhao
authors.affiliation: Department of Interventional Radiography, No. 2 People's Hospital of Changzhou, Nanjing Medical University, Xing Long Road 29#, Chang Zhou, 213003, Jiangsu Province, China. tianfeng@163.com.
authors.forename: Feng
authors.initials: F
authors.lastname: Tian
authors.affiliation: Department of Interventional Radiography, No. 2 People's Hospital of Changzhou, Nanjing Medical University, Xing Long Road 29#, Chang Zhou, 213003, Jiangsu Province, China. wangkai@163.com.
authors.forename: Kai
authors.initials: K
authors.lastname: Wang
authors.affiliation: Department of Interventional Radiography, No. 2 People's Hospital of Changzhou, Nanjing Medical University, Xing Long Road 29#, Chang Zhou, 213003, Jiangsu Province, China. lishaoqin@163.com.
authors.forename: Shaoqin
authors.initials: S
authors.lastname: Li
authors.affiliation: Department of Interventional Radiography, No. 2 People's Hospital of Changzhou, Nanjing Medical University, Xing Long Road 29#, Chang Zhou, 213003, Jiangsu Province, China. 747094035@qq.com.
authors.forename: Guomin
authors.initials: G
authors.lastname: Jiang
authors.affiliation: Department of Radiology, Mayo Clinic, Jacksonville, FL, 32224, USA. wpwang@hotmail.com.
authors.forename: Weiping
authors.initials: W
authors.lastname: Wang
mesh_terms: D000208:Acute Disease; D000368:Aged; D000369:Aged, 80 and over; D057505:Embolic Protection Devices; D057510:Endovascular Procedures; D005260:Female; D005263:Femoral Artery / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D012189:Retrospective Studies; D013923:Thromboembolism / Q000000981:diagnostic imaging / Q000601:surgery*
keywords: Embolus; Endovascular revascularization; Spider filter; Superficial femoral artery (SFA); Thrombus