Table 1 Criteria for Takayasu ^′ s arteritis accord to American College of Rheumatology

Age at disease onset in year

Development of symptoms or findings related to Takayasu’s arteritis at age <40 years.

Claudication of extremities

Development and worsening of fatigue and discomfort in muscles of one or more extremity while in use, especially the upper extremities.

Decreased brachial artery pulse

Decreased pulsation of one or both brachial arteries.

BP difference >10 mmHg

Difference of >10 mmHg in systolic blood pressure between arms.

Bruit over subclavian arteries or aorta

Bruit audible on auscultation over one or both subclavian arteries or abdominal aorta.

Arteriogram abnormality

Arteriographic narrowing or occlusion of the entire aorta, its primary branches, or large arteries in the proximal upper or lower extremities, not due to arteriosclerosis, fibro-muscular dysplasia, or similar causes: changes usually focal or segmental.