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缺血性心脏病在西方国家中是一个影响健康主要问题。在美国每年死于冠状动脉疾患者超过650,000人;每年患心肌梗塞的约近130万;其中许多患有缺血性心脏病的并发症。麻醉医师常会面临患有潜匿性或明显的缺血性心脏病而又必须施行外科手术患者。为了防止手术前后的合并症和死亡率,必须尽可能少地恍乱心肌代谢。麻醉与手术期间一定要保持好心肌氧的供求之间良好平衡。钾和钙离子对正常心脏功能的作用,已得到充分肯定的证明,但注意力很少集中在
Ischemic heart disease is a major health problem in Western countries. More than 650,000 people die from coronary artery disease in the United States each year; about 1.3 million suffer from myocardial infarctions each year; many of them have complications from ischemic heart disease. Anesthesiologists often face patients who have a latent or apparent ischemic heart disease who must be surgically treated. In order to prevent complications and mortality before and after surgery, must be as little as possible to disturb myocardial metabolism. A good balance between supply and demand of myocardial oxygen must be maintained during anesthesia and surgery. The effect of potassium and calcium on normal cardiac function has been well documented, but attention is less focused on