Why the study?
What is the frequency and what are the risk factors for unruptured aneurysms in first-degree relatives of patients with sporadic SAH?
What is the frequency and what are the risk factors for unruptured aneurysms in first-degree relatives of patients with sporadic SAH?
First-degree relatives of patients with sporadic SAH have a 4.0% chance of intracranial aneurysms, with siblings having the highest risk.
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May inform family screening decisions in sporadic SAH; leaves open prospective validation of risk-stratified imaging.
Theodora W. M. Raaymakers (1999) studied this question.
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