Journal of Korean Neurosurgical Society

The Korean Neurosurgical Society (대한신경외과학회)
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Predictor and Prognosis of Procedural Rupture during Coil Embolization for Unruptured Intracranial Aneurysm

  • Lee, Kyung Min (Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine) ;
  • Jo, Kyung Il (Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine) ;
  • Jeon, Pyoung (Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine) ;
  • Kim, Keon Ha (Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine) ;
  • Kim, Jong-Soo (Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine) ;
  • Hong, Seung-Chyul (Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine)
  • Received : 2015.06.29
  • Accepted : 2015.10.28
  • Published : 2016.01.01
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Abstract

Objective : The objectives of this study was to determine the incidence and outcomes of procedural rupture (PR) during coil embolization of unruptured intracranial aneurysm (UIA) and to explore potential risk factors. Methods : This retrospective study evaluated 1038 patients treated with coil embolization between January 2001 and May 2013 in a single tertiary medical institute. PR was defined as evidence of rupture during coil embolization or post procedural imaging. The patient's medical records were reviewed including procedure description, image findings and clinical outcomes. Results : Twelve of 1038 (1.1%) patients showed PR. Points and time of rupture were parent artery rupture during stent delivery (n=2), aneurysm rupture during filling stage (n=9) and unknown (n=1). Two parent artery rupture and one aneurysm neck rupture showed poor clinical outcomes [modified Rankin Scale (mRs) >2] Nine aneurysm dome rupture cases showed favorable outcomes ($mRS{\leq}2$). Location (anterior cerebral artery) of aneurysm was associated with high procedural rupture rate (p<0.05). Conclusion : The clinical course of a patientwith procedural aneurysm rupture during filling stage seemed benign. Parent artery and aneurysm neck rupture seemed relatively urgent, serious and life threatening. Although the permanent morbidity rate was low, clinicians should pay attention to prevent PR, especially when confronting the anterior cerebral artery aneurysm.

Keywords

References

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