Journal of Korean Neurosurgical Society

The Korean Neurosurgical Society (대한신경외과학회)
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Nationwide Mortality Data after Flow-Diverting Stent Implantation in Korea

  • Kim, Tackeun (Department of Neurosurgery, Seoul National University Bundang Hospital) ;
  • Kwon, O-Ki (Department of Neurosurgery, Seoul National University Bundang Hospital) ;
  • Lee, Heeyoung (Seoul National University College of Medicine) ;
  • Cho, Min Jai (Department of Neurosurgery, Seoul National University Bundang Hospital) ;
  • Jeong, Hyun Jean (Department of Neurosurgery, Seoul National University Bundang Hospital) ;
  • Ban, Seung Pil (Department of Neurosurgery, Seoul National University Bundang Hospital)
  • Received : 2017.07.24
  • Accepted : 2017.09.02
  • Published : 2018.03.01
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Abstract

Objective : To investigate nationwide statistics on flow-diverting stent usage for cerebral aneurysm treatment and related mortality data. Methods : We requested data extraction from the National Health Insurance Service claims database using electronic data interchange codes (J3207064, J3207073). Patient and hospital information as well as death statistics were collected from the database. Results : A total of 169 procedures were performed using flow-diverting stents for cerebral aneurysm treatment from November 2014 to December 2016 in Korea. The majority of primary diagnosis was unruptured intracranial aneurysm. During the study period, nine subjects died, including one patient initially diagnosed with subarachnoid hemorrhage. The crude mortality rate was 5.3%. Five patients died within one month after the procedure; therefore, the estimated periprocedural mortality rate was $3.0{\pm}1.3%$. The mortality rate as of the last day of 2016 was $6.3{\pm}2.1%$. Conclusion : In a 171 person-year follow-up in a Korean series, nine deaths occurred after flow-diverting stent treatment. The crude mortality rate in Korea (5.3%) was higher than that reported in a previous meta-analysis (3.8%).

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References

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