Recognition of the hemodynamic importance of aorto-iliac and femoro-popliteal stenoses or occlusions is essential for correct vascular reconstruction. Non-invasive examinations, arteriography, pressure- and flow-measurements add their value to clinical judgment and surgical experience. Practical guides are given to decide for one-level-reconstruction, concomitant or delayed two-stage-repair, or a combination of balloon-dilation together with arterial reconstruction.
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