J Korean Neurosurg Soc.  2018 Mar;61(2):219-223. 10.3340/jkns.2017.0218.

Nationwide Mortality Data after Flow-Diverting Stent Implantation in Korea

• Kim T
• Kwon OK
• Lee H
• Cho MJ
• Jeong HJ
• Ban SP

• KMID: 2408023
• DOI: http://doi.org/10.3340/jkns.2017.0218

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±1.3%. The mortality rate as of the last day of 2016 was 6.3±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%).

Keyword

Intracranial aneurysm; Korea; Mortality; Stents; Flow diverting stent; Flow diverter

MeSH Terms

Diagnosis
Follow-Up Studies
Humans
Intracranial Aneurysm
Korea*
Mortality*
National Health Programs
Stents*
Subarachnoid Hemorrhage

Figure

• 

  Fig. 1 Kaplan-Meier curve represents mortality after flow-diverting stent procedure. Solid line indicates mortality rate over time, and gray shading shows 95% confidence interval.

Reference

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