Table 35.

Diagnostic Criteria for Inflammatory Aortitis

Names	Criteria Used in Diagnosis	When Is Diagnosis Established?
Takayasu arteritis	Age of onset <40 y Intermittent claudication	≥3 criteria are present (sensitivity 90.5%; specificity 97.8%)
	Diminished brachial artery pulse
	Subclavian artery or aortic bruit
	Systolic BP variation of >10 mm Hg between arms
	Aortographic evidence of aorta or aortic branch stenosis
Giant cell arteritis	Age >50 y Recent-onset localized headache	≥3 criteria are present (sensitivity >90%; specificity >90%)
	Temporal artery tenderness or pulse attenuation
	Elevated erythrocyte sedimentation rate >50 mm/h
	Arterial biopsy shows necrotizing vasculitis

Reprinted from Hiratzka et al. 2019.²⁷