[Vascular surgery and patient stress tolerance with reference to anesthesia (author's transl)]

This paper lists the factors that affect the stress tolerance of patients undergoing surgery. Hypertonicity is observed in 64 percent of these patients, and signs of depleted coronany supply in 82.5 percent. The stress tolerance can be tested before surgery by means of gas analyses and determination of the minute volume and the pulmonary arterial pressure. During surgery, circulatory crises occur due to occlusion and release of large arterial branches. The anesthetic technique must be selected with due consideration of the increased risk. After surgery the oxygen consumption is increased, which lays heavier demands on the myocardial performance.