Journal of Cerebrovascular and Endovascular Neurosurgery

Korean Society of Cerebravascular Surgeons (대한뇌혈관외과학회)
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Recurrence of Small Cerebral Aneurysms (< 4 mm) Treated Endovascularly Using Target® NanoTM Coils

  • Kim, Sung Min (Department of Neurosurgery, Inje University Haeundae Paik Hospital) ;
  • Lee, Hyun Gon (Department of Neurosurgery, Inje University Haeundae Paik Hospital) ;
  • Choi, Byung Sam (Department of Neurosurgery, Inje University Haeundae Paik Hospital) ;
  • Kim, Jung Soo (Department of Neurosurgery, Inje University Haeundae Paik Hospital) ;
  • Lee, Sung Joon (Department of Neurosurgery, Inje University Haeundae Paik Hospital) ;
  • Kim, Hae Yu (Department of Neurosurgery, Inje University Haeundae Paik Hospital) ;
  • Kim, Sung Tae (Department of Neurosurgery, Inje University Busan Paik Hospital) ;
  • Jeong, Young Gyun (Department of Neurosurgery, Inje University Busan Paik Hospital) ;
  • Baek, Jin Wook (Department of Radiology, Inje University Busan Paik Hospital) ;
  • Jeong, Hae Woong (Department of Radiology, Inje University Busan Paik Hospital) ;
  • Jin, Sung-Chul (Department of Neurosurgery, Inje University Haeundae Paik Hospital)
  • Received : 2018.01.29
  • Accepted : 2018.06.14
  • Published : 2018.06.30
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Abstract

Objective : In our series, endovascular coiling with Target(R) $Nano^{TM}$ coils (Stryker Neurovascular, Fremont, CA, USA) with diameters of 1 or 1.5 mm exhibited favorable technical feasibility in the treatment of small cerebral aneurysms (< 4 mm). However, little is known about the recurrence of small cerebral aneurysms treated using Target(R) $Nano^{TM}$ coils. We investigated recurrence following the treatment of small cerebral aneurysms using Target(R) $Nano^{TM}$ coils. Materials and Methods : Between January 2012 and November 2013, 143 patients with 148 small cerebral aneurysms (< 4 mm) were included our study. A total of 135 cerebral aneurysms (91.2%) were unruptured; 45 cerebral aneurysms (30.4%) were treated by endovascular coiling using Target(R) $Nano^{TM}$ coils. Follow-up radiological images were obtained for 132 cerebral aneurysms (89.2%) over a range of 3 to 58 months (mean, 34.3 months; standard deviation, 14.2). Results : In the group treated with Target(R) $Nano^{TM}$ coils, radiological outcomes revealed complete occlusion in 33 (73.3%), residual necks in eight (17.8%), and residual sacs in four (8.9%) cases. Follow-up radiological outcomes revealed complete occlusion in 35 (77.8%) and residual necks in four (8.9%) cases that exhibited stable coil masses. In the group that was not treated with Target(R) $Nano^{TM}$ coils, radiological outcomes revealed complete occlusion in 69 (67%), residual necks in 18 (17.5%), and residual sacs in 16 (15.5%) cases. Follow-up radiological outcomes revealed complete occlusion in 87 (84.5%) and residual necks (5.8%) in six cases that exhibited stable coil masses. No significant differences were observed in the radiological outcomes or follow-up radiological outcomes between the two groups. No recurrences or retreatments occurred in our series. Conclusion : Endovascular treatment using Target(R) $Nano^{TM}$ coils may be a robust treatment option for small cerebral aneurysms (< 4 mm).

Keywords

References

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