There are a paucity of data in the literature regarding the natural history in patients with subclavian artery occlusive disease. The left subclavian artery is more frequently involved than the ...

Angiography (Fig. 5) revealed marked stenosis of the left subclavian artery proximal to the origin of the left vertebral artery, which was of good caliber and supplied collateral flow to the right ...

Case 1. C.A. (S.E.H. No. 66–15874), a 49-year-old man, had syncopal episodes for 3 years occurring about once a week during the past year. The attacks were precipitated by driving a bus.