Successful Retrieval of Filter Embolic Protection Device Fragment Trapped by a Carotid Stent: A Case Report

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  • Karakama Jun
    Department of Endovascular Surgery, Tokyo Medical and Dental University, Tokyo, Japan Department of Neurosurgery, Ome Medical Center, Ome, Tokyo, Japan
  • Ishikawa Mariko
    Department of Endovascular Surgery, Tokyo Medical and Dental University, Tokyo, Japan Department of Neurosurgery, Ome Medical Center, Ome, Tokyo, Japan
  • Hirai Sakyo
    Department of Endovascular Surgery, Tokyo Medical and Dental University, Tokyo, Japan
  • Takahashi Satoru
    Department of Endovascular Surgery, Tokyo Medical and Dental University, Tokyo, Japan
  • Wakabayashi Hikaru
    Department of Endovascular Surgery, Tokyo Medical and Dental University, Tokyo, Japan
  • Sagawa Hirotaka
    Department of Endovascular Surgery, Tokyo Medical and Dental University, Tokyo, Japan
  • Fujii Shoko
    Department of Endovascular Surgery, Tokyo Medical and Dental University, Tokyo, Japan
  • Fujita Kyohei
    Department of Endovascular Surgery, Tokyo Medical and Dental University, Tokyo, Japan
  • Hirotsune Nobuyuki
    Department of Neurosurgery, Hiroshima City Hiroshima Citizens Hospital, Hiroshima, Hiroshima, Japan
  • Sumita Kazutaka
    Department of Endovascular Surgery, Tokyo Medical and Dental University, Tokyo, Japan

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<p>Objective: Embolic protection devices are useful for preventing distal embolism during carotid artery stenting (CAS); however, complications have been reported. The successful removal of a filter fragment trapped at the distal edge of a carotid stent during the retrieval procedure is described.</p><p>Case Presentation: CAS was performed for internal carotid artery stenosis in a patient in his 70s, and the carotid stent was successfully placed. During the retrieval procedure, the tip of the filter was trapped at the distal edge of the stent and detached from the filter. Using a snare kit, the filter tip was successfully retrieved, and no postoperative neurological symptoms occurred.</p><p>Conclusion: The edge of a carotid stent can potentially trap devices. When trapping or fragmentation of a device is suspected, it is necessary to evaluate the situation and cause, and the device should be appropriately retrieved without using force.</p>

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