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The impact of statin therapy after surgical or endovascular treatment of cerebral aneurysms

Authors
 Tae-Jin Song  ;  Seung-Hun Oh  ;  Jinkwon Kim 
Citation
 JOURNAL OF NEUROSURGERY, Vol.133(1) : 182-189, 2020-07 
Journal Title
 JOURNAL OF NEUROSURGERY 
ISSN
 0022-3085 
Issue Date
2020-07
Keywords
CI = confidence interval ; DM = diabetes mellitus ; HR = hazard ratio ; ICD-10 = International Classification of Diseases, 10th revision ; MI = myocardial infarction ; MMP = matrix metalloproteinase ; NHIS = National Health Insurance Service ; NHIS-NSC = NHIS–National Sample Cohort ; PDC = proportion of days covered ; SAH = subarachnoid hemorrhage ; cerebral aneurysm ; interventional neurosurgery ; prognosis ; statin ; stroke
Abstract
Objective: Cerebral aneurysms represent the most common cause of spontaneous subarachnoid hemorrhage. Statins are lipid-lowering agents that may expert multiple pleiotropic vascular protective effects. The authors hypothesized that statin therapy after coil embolization or surgical clipping of cerebral aneurysms might improve clinical outcomes. Methods: This was a retrospective cohort study using the National Health Insurance Service-National Sample Cohort Database in Korea. Patients who underwent coil embolization or surgical clipping for cerebral aneurysm between 2002 and 2013 were included. Based on prescription claims, the authors calculated the proportion of days covered (PDC) by statins during follow-up as a marker of statin therapy. The primary outcome was a composite of the development of stroke, myocardial infarction, and all-cause death. Multivariate time-dependent Cox regression analyses were performed. Results: A total of 1381 patients who underwent coil embolization (n = 542) or surgical clipping (n = 839) of cerebral aneurysms were included in this study. During the mean (± SD) follow-up period of 3.83 ± 3.35 years, 335 (24.3%) patients experienced the primary outcome. Adjustments were performed for sex, age (as a continuous variable), treatment modality, aneurysm rupture status (ruptured or unruptured aneurysm), hypertension, diabetes mellitus, household income level, and prior history of ischemic stroke or intracerebral hemorrhage as time-independent variables and statin therapy during follow-up as a time-dependent variable. Consistent statin therapy (PDC > 80%) was significantly associated with a lower risk of the primary outcome (adjusted hazard ratio 0.34, 95% CI 0.14-0.85). Conclusions: Consistent statin therapy was significantly associated with better prognosis after coil embolization or surgical clipping of cerebral aneurysms.
Full Text
https://thejns.org/view/journals/j-neurosurg/133/1/article-p182.xml
DOI
10.3171/2019.3.JNS183500
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Neurology (신경과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Jinkwon(김진권) ORCID logo https://orcid.org/0000-0003-0156-9736
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/178394
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