Vascular surgery: the unanswered questions.
In summary, definitive answers to the many questions regarding femoropopliteal and femorodistal bypass grafting are not available. The results vary widely for many reasons. Although many aspects of vascular surgery do not lend themselves to scientific investigation by randomized, controlled, prospective studies, some of these questions can be answered by such studies. Since large numbers of patients may be required for prolonged follow-up, multicentre cooperative studies can provide meaningful data. There is also a need for standardization of follow-up techniques. The classification of vascular disease by symptoms and presentation such as claudication, rest pain, ischemic ulcers pregangrene and gangrene is inadequate and highly subjective. A more objective classification is essential, perhaps using the current techniques of the vascular laboratory or newer techniques that are sure to be developed. The national and regional vascular societies must be the leaders in these efforts. A start has already been made and it is hoped that progress will be rapid.
D000671:Amputation, Surgical; D005263:Femoral Artery / Q000601:surgery*; D005734:Gangrene / Q000601:surgery; D006801:Humans; D007383:Intermittent Claudication / Q000601:surgery; D007511:Ischemia / Q000601:surgery; D007866:Leg / Q000098:blood supply / Q000601:surgery; D011150:Popliteal Artery / Q000601:surgery*