Rantasalo V, Gunn J, Kiviniemi T, et al. - According to this retrospective case-control study, patients with ruptured intracranial aneurysms (rIA) and unruptured intracranial aneurysms (UIA) have more aortic calcification than matched controls. Aortic calcification index (ACI) raises the risk of rIAs.

• A total of 462 patients with abdominal CT were selected from a total of 2,020 IA patients.

• One thousand seven hundred twenty patients (216 rIA, 246 UIA and 1,258 control) were involved.

• The average age was 62.9 ± 11.9 years and 58.2% were female.

• When compared with matched controls, ACI and ACI > 3 increased the risk of rIA.

• UIA patients' ACI was significantly higher but ACI did not increase chances for UIA when compared with matched controls.

• In rIA patients, a history of coronary artery disease was less common.

• In 8.8% rIA and 13.6% UIA patients, there was no aortic calcification.