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Published on: September 4, 2017
Association Between Beta-Blocker or Statin Drug Use and the Risk of Hemorrhage From Cerebral Cavernous Malformations
Susanna M Zuurbier1, Charlotte R Hickman2, Leon A Rinkel1
1Department of Neurology, Amsterdam University Medical Center, the Netherlands (S.M.Z., L.A.R.).
Insights
Beta-blocker use significantly reduced the risk of hemorrhage or neurological deficits in cerebral cavernous malformations (CCM) patients. Statin use showed a nonsignificant trend toward lower risk.
Area of Science:
- Neurology
- Cardiovascular Pharmacology
Background:
- Cerebral cavernous malformations (CCM) pose risks of symptomatic intracranial hemorrhage and neurological deficits.
- Understanding medication effects on CCM progression is crucial for patient management.
Purpose of the Study:
- To investigate the association between beta-blocker or statin use and the risk of future adverse events in patients with CCM.
- To evaluate the impact of these medications on symptomatic intracranial hemorrhage or persistent/progressive focal neurological deficit.
Main Methods:
- A population-based study using the Scottish Audit of Intracranial Vascular Malformations.
- Prospective follow-up of adults diagnosed with CCM between 1999-2003 and 2006-2010.
- Survival analysis with multivariable adjustment for key confounders.
Main Results:
- Beta-blocker use was associated with a significantly lower risk of hemorrhage or neurological deficit (aHR, 0.09; P=0.018).
- Statin use showed a trend towards a lower risk, but this was not statistically significant (aHR, 0.37; P=0.067).
- Propranolol was the most common beta-blocker used.
Conclusions:
- Beta-blocker therapy is associated with a reduced risk of adverse outcomes in patients with cerebral cavernous malformations.
- Statin therapy did not demonstrate a statistically significant association with reduced risk in this cohort.
Background:
We aimed to determine the association between beta-blocker or statin drug use and the future risk of symptomatic intracranial hemorrhage or persistent/progressive focal neurological deficit from cerebral cavernous malformations (CCM).
Methods:
The population-based Scottish Audit of Intracranial Vascular Malformations prospectively identified adults resident in Scotland first diagnosed with CCM during 1999 to 2003 or 2006 to 2010. We compared the association between beta-blocker or statin drug use after first presentation and the occurrence of new intracranial hemorrhage or persistent/progressive focal neurological deficit due to CCM for up to 15 years of prospective follow-up. We confirmed proportional hazards and used survival analysis with multivariable adjustment for age, intracranial hemorrhage at CCM presentation, and brain stem CCM location.
Results:
Sixty-three (21%) of 300 adults used beta-blockers (27/63 [43%] used propranolol), and 73 (24%) used statin drugs over 3634 person-years of follow-up. At baseline, the only statistically significant imbalances in prespecified potential confounders were age by statin use and intracranial hemorrhage at presentation by beta-blocker use. Beta-blocker use was associated with a lower risk of new intracranial hemorrhage or persistent/progressive focal neurological deficit (adjusted hazard ratio, 0.09 [95% CI, 0.01-0.66]; P=0.018). Statin use was associated with a nonsignificant lower risk of intracranial hemorrhage or persistent/progressive focal neurological deficit (adjusted hazard ratio, 0.37 [95% CI, 0.01-1.07]; P=0.067).
Conclusions:
Beta-blocker, but not statin, use was associated with a lower risk of intracranial hemorrhage or persistent/progressive focal neurological deficit in patients with CCM.
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