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Direct measured systolic pressure gradients across the aorto-iliac segment in multiple-level-obstruction arteriosclerosis
Authors:I. Noer  J. Præstholm  K. H. Tønnesen M.D.
Affiliation:(1) Department of Radiology I, Bispebjerg Hospital, Copenhagen, Denmark;(2) Department of Clinical Physiology, Bispebjerg Hospital, DK-2400 Copenhagen NV, Denmark
Abstract:Patients with severe ischemia due to multilevel obstructions in the leg arteries both above and below the groin were assessed preoperatively by intraarterial brachial and femoral artery pressure measurements. The systolic pressure drop along aortoiliac obstructions was compared to the angiographic findings. A consistent pressure gradient was found in the various types of arterial occlusions. In patients with occlusion of both the aorta and the iliac arteries, the systolic pressure drop was about 60% (range, 50–78%, SD 9%). The various types of iliac artery occlusions resulted in quite uniform systolic pressure drops of about 50% (range 35–68%, SD 9%). In contrast, the systolic pressure drop along different types of iliac stenoses showed a wide variation, ranging from a minimal drop to about 60%. The degree of stenosis on the angiogram was correlated significantly with the pressure drop. Due to large variations, however, this angiographic information was found to be useless in the individual patient. No difference in the pressure drop was found between cases in which rich and poor collateral networks were visualized. Presented at the Elsinore Symposium September 1978
Keywords:Arteries, iliac  Arteries, obstruction  Arteries, pressure measurement  Angiography  Leg, ischemia
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