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.
Abstract

Related Concept Videos

Review and Preview01:10

Review and Preview

In statistics, several tools are used to interpret the data. Measures of central tendency represent the characteristics of the data, such as mean, median, and mode. Additionally, measures of variance like standard deviation and range are used to find the spread of data from the mean. Relative standing measures the distance between data locations. Commonly used measures of relative standings are percentile, z score, and quartiles.
Percentiles are a type of fractile that partition data into...
8.3K
Review and Preview01:13

Review and Preview

Data are individual items of information obtained from a population or sample. Data may be classified as qualitative (categorical), quantitative continuous, or quantitative discrete. Because it is not practical to measure the entire population in a study, researchers use samples to represent the population. A random sample is a representative group from the population chosen by using a method that gives each individual in the population an equal chance of being included in the sample. Random...
10.9K
Cholesterol: Significance and Regulation01:29

Cholesterol: Significance and Regulation

Although not a source of energy, cholesterol plays a significant role as a foundational structure for bile salts, steroid hormones, and vitamin D, as well as being a crucial component of plasma membranes. Approximately 15% of blood cholesterol is derived from our diet, with the remainder synthesized from acetyl CoA by the liver and intestines. Cholesterol is eliminated from the body through its conversion into bile salts, which are eventually discarded in the feces.
Considering cholesterol and...
1.3K
Lipid-Lowering Drugs: Statins and Miscellaneous Agents01:20

Lipid-Lowering Drugs: Statins and Miscellaneous Agents

Hyperlipidemia, a medical condition often referred to as high cholesterol, is characterized by abnormally elevated levels of lipids in the bloodstream. When present in excess, these lipids, specifically cholesterol and triglycerides, can lead to serious health complications, often involving cardiovascular diseases. Illnesses like atherosclerosis, heart attacks, and pancreatitis have all been linked to untreated hyperlipidemia. This means controlling and regulating cholesterol and triglyceride...
1.3K
Random and Systematic Errors01:20

Random and Systematic Errors

Scientists always try their best to record measurements with the utmost accuracy and precision. However, sometimes errors do occur. These errors can be random or systematic. Random errors are observed due to the inconsistency or fluctuation in the measurement process, or variations in the quantity itself that is being measured. Such errors fluctuate from being greater than or less than the true value in repeated measurements. Consider a scientist measuring the length of an earthworm using a...
14.5K
Directing Effect of Substituents: meta-Directing Groups01:09

Directing Effect of Substituents: meta-Directing Groups

Substituents on the benzene ring that direct an incoming electrophile to undergo substitution at the meta position are called meta directors. All meta directors either have a positive charge on the atom directly bonded to the ring or a partial positive charge. These groups function by withdrawing electrons from the ring through inductive and resonance effects. Consider the carbocation intermediates formed upon the addition of an electrophile on nitrobenzene at the...
5.8K