At the Seraphimer Hospital the main interest in the vascular surgical basic research has been microangiography, clinical physiological diagnostic methods, isotope clearance techniques and metabolic changes in ischemic tissues. Clinical vascular surgical research has mainly been reconstructive arterial surgery in patients with ischemic gangrene, deep femoral artery reconstruction, treatment of arterial embolism and the use of sympathetic blocks. Walking exercises have been supervised by physiotherapists and all patients have been recommended to stop smoking. Anticoagulants have been reserved for prophylactic treatment of patients who postoperatively still have other critical stenoses. Regular post-operative examinations have been performed at the vascular surgical out-patient department.