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冠状动脉旁路水围术期冠状动脉痉挛可导致病情恶化,甚至死亡,而且往往易被忽视。术前静息型心绞痛,相对正常的,优势的右冠状动脉是痉挛的高危险因素。血压急剧下降常是首发征象,传统的处理方法只能加重病情。周围静脉应用硝酸甘油收效甚微,但若经冠状动脉,移植静脉使用硝酸甘油,和/或应用钙通道阻滞剂,可以收到满意效果。若痉挛存在,即使血压下降,也应毫不犹豫地应用血管扩张药。
Perioperative Coronary Artery Bypass Coronary Artery Spasm can lead to worsening, even death, and often overlooked. Preoperative rest angina, a relatively normal, dominant right coronary artery is a high risk factor for spasticity. A sharp decline in blood pressure is often the starting sign, the traditional treatment can only aggravate the condition. The use of nitroglycerin in the peripheral vein has little effect, but satisfactory results can be obtained if nitroglycerin is administered via the coronary artery, vein graft, and / or calcium channel blocker. If spasticity exists, even if the blood pressure drops, should not hesitate to use vasodilator.