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Updated: Jan 22, 2026

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke
Published on: January 18, 2018
Statin, cholesterol, and sICH after acute ischemic stroke: systematic review and meta-analysis
Changhong Tan1, Xi Liu1, Lijuan Mo1
1Department of Neurology, The Second Affiliated Hospital of Chongqing Medical University, 74 Linjiang Road, Yuzhong District, Chongqing, 400010, China.
Insights
Prior statin use does not increase the risk of intracranial hemorrhage (ICH) in acute ischemic stroke (AIS) patients. New statin use may decrease the risk of symptomatic ICH, suggesting statins are safe for AIS management.
Area of Science:
- Neurology
- Cardiology
- Pharmacology
Background:
- Intracranial hemorrhage (ICH) is a serious complication after acute ischemic stroke (AIS).
- The role of statin therapy and cholesterol levels in the risk of ICH following AIS remains debated.
- Understanding these relationships is crucial for optimizing stroke management.
Purpose of the Study:
- To evaluate the safety of prior and new statin use in relation to the risk of early poststroke ICH in AIS patients.
- To assess the association between cholesterol levels and ICH risk in this population.
- To clarify conflicting evidence regarding statin use and ICH in AIS.
Main Methods:
- A comprehensive meta-analysis was conducted, searching PubMed and Embase databases.
- Studies investigating the relationship between statin use, cholesterol levels, and early poststroke ICH in AIS were included.
- A random-effects model was employed to synthesize data from 25 articles involving 26,327 participants.
Main Results:
- Prior statin use showed no significant association with overall ICH or symptomatic ICH (sICH) in patients receiving thrombolysis.
- New statin use was significantly associated with a decreased risk of sICH after recanalization therapy (OR, 0.292; P < 0.001).
- Cholesterol levels were not found to be associated with the risk of overall ICH.
Conclusions:
- Neither prior nor new statin use, nor lower cholesterol levels, appear to be risk factors for ICH in AIS patients.
- New statin initiation may be linked to a reduced risk of symptomatic ICH post-stroke.
- These findings support the continued use of statins in AIS patients, even those undergoing recanalization therapy.
Background And Purpose:
Conflicts exist regarding relationship between prior/new statin use, cholesterol, and early poststroke intracranial hemorrhage (ICH) in acute ischemic stroke (AIS) patients. This meta-analysis is aimed at evaluating the safety of prior/new statin use, cholesterol level and risk of ICH in AIS patients.
Methods:
We searched PubMed and Embase for studies examining relation between statin use, cholesterol level, and early poststroke ICH in AIS. Included studies should report risk of early poststroke symptomatic ICH (sICH) or overall ICH. A random-effects model was used to pool the data.
Results:
Twenty-five articles involving 26,327 participants were included, among whom 925 had sICH. Prior statin use was not associated with overall ICH (adjusted odds ratio (OR), 1.478; 95% confidence interval (CI), 0.924-2.362; p = 0.103) and sICH in patients who received thrombolysis (adjusted OR, 1.567; 95% CI, 0.994-2.471; p = 0.053) or overall ICH in patients, most of whom had not received recanalization therapy (crude OR, 1.342; 95% CI, 0.872-2.065; p = 0.181). New statin use was associated with decreased sICH after recanalization therapy (crude OR, 0.292; 95% CI, 0.168-0.507; p < 0.001).Cholesterol level was not associated with overall ICH.
Conclusion:
Prior/new statin use and lower cholesterol level are not risk factors for sICH and overall ICH in AIS patients, whether or not the patient has received recanalization therapy. New statin use is likely associated with decreased sICH.
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