IRAD Risk Score (Aortic Dissection) Calculator

IRAD Risk Score (Aortic Dissection): Explanation and Clinical Context IRAD Risk Score is a validated clinical tool to assess the probability of acute aortic dissection (AAD) in patients presenting to emergency departments. It is based on three domains: predisposing conditions (such as Marfan syndrome, aortic aneurysm, or chronic hypertension), pain characteristics (abrupt onset, severe intensity, and migrating nature), and physical examination findings (pulse deficits, neurologic deficits, hypotension/shock/tamponade). The score ranges from 0 to 9, stratifying patients into low, intermediate, or high risk for AAD, guiding the need for immediate imaging like CT angiography or TEE.

This scoring system facilitates rapid triage and clinical decision-making but does not replace definitive diagnostic tests.