Can aspirin decrease the rate of intracranial aneurysm growth?

Researchers investigated whether aspirin can aid in the prevention of intracranial aneurysm rupture by hindering aneurysm growth. The researchers identified 146 patients harboring multiple intracranial aneurysms, five millimeters or less in diameter, that had been observed for at least five years. In this set of patients, the researchers found an association between aspirin use and a decreased rate of aneurysm growth. Growth is important in intracranial aneurysms because it increases the risk of aneurysm rupture.