心外科病人麻醉前、术中和术后易发生心动过速,其发病率高达25～40％。1980年底以来我们对体外循环前后并发窦性、阵发性室上性心动过速及房颤伴快速室率的病人,用小剂量心得安静脉推注治疗,系统观察了39例次病人用药前后心率、血压、心律的变化,其结果表明:小剂量心得安静脉推 Cardiac surgery patients before anesthesia, intraoperative and postoperative prone to tachycardia, the incidence of up to 25 to 40%. Since the end of 1980, we have used intravenous bolus injection of small doses to treat patients with sinus, paroxysmal supraventricular tachycardia and atrial fibrillation with rapid ventricular rate before and after cardiopulmonary bypass, and systematically observed 39 patients before and after treatment Heart rate, blood pressure, heart rate changes, the results show that: small doses of intravenous Andean push