Korean Journal of Radiology

  • 제20권8호
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  • Pages.1285-1292
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  • 2019
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  • 1229-6929(pISSN)
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  • 2005-8330(eISSN)
대한영상의학회 (The Korean Society of Radiology)
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Coil-Protected Technique for Liquid Embolization in Neurovascular Malformations

  • Keun Young Park (Department of Neurosurgery, Severance Hospital, Yonsei University College of Medicine) ;
  • Jin Woo Kim (Department of Radiology, Ilsan Paik Hospital, Inje University College of Medicine) ;
  • Byung Moon Kim (Division of Interventional Neuroradiology and Department of Radiology, Severance Hospital, Yonsei University College of Medicine) ;
  • Dong Joon Kim (Department of Radiology, Ilsan Paik Hospital, Inje University College of Medicine) ;
  • Joonho Chung (Department of Neurosurgery, Severance Hospital, Yonsei University College of Medicine) ;
  • Chang Ki Jang (Department of Neurosurgery, Severance Hospital, Yonsei University College of Medicine) ;
  • Jun-Hwee Kim (Department of Radiology, Ilsan Paik Hospital, Inje University College of Medicine)
  • 투고 : 2019.02.15
  • 심사 : 2019.05.09
  • 발행 : 2019.08.01
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초록

Objective: To evaluate the safety and efficacy of the coil-protected technique for liquid embolization in neurovascular malformations. Materials and Methods: Twenty-two patients who underwent coil-protected liquid embolization for symptomatic cranial (n = 13) and spinal (n = 9) arteriovenous fistula (AVF) or arteriovenous malformations (AVMs) were identified. A total of 36 target feeder vessels were embolized with N-butyl cyanoacrylate and/or Onyx (Medtronic). This technique was used to promote delivery of a sufficient amount of liquid embolic agent into the target shunt or nidus in cases where tortuous feeding arteries preclude a microcatheter wedging techniqu and/or to prevent reflux of the liquid embolic agent in cases with a short safety margin. The procedure was considered technically successful if the target lesion was sufficiently filled with liquid embolic agent without unintentional reflux. Angiographic and clinical outcomes were retrospectively evaluated. Results: Technical success was achieved for all 36 target feeders. Post-embolization angiographies revealed complete occlusion in 16 patients and near-complete and partial occlusion in three patients each. There were no treatment-related complications. Of the six patients who showed near-complete or partial occlusion, five received additional treatments: two received stereotactic radiosurgery for cerebral AVM, two underwent surgical removal of cerebral AVM, and one underwent additional embolization by direct puncture for a mandibular AVM. Finally, all patients showed complete (n = 19) or near-complete (n = 3) occlusion of the target AVF or AVM on follow-up angiographies. The presenting neurological symptoms improved completely in 15 patients (68.2%) and partially in seven patients (31.8%). Conclusion: The coil-protected technique is a safe and effective method for liquid embolization, especially in patients with various neurovascular shunts or malformations who could not be successfully treated with conventional techniques.

키워드

과제정보

This study was supported by a grant of the Korea Health Technology R&D Project through the Korea Health Industry Development Institute (KHIDI), funded by the Ministry of Health & Welfare, Republic of Korea (HC15C1056).

참고문헌

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