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患者女,64岁。诊断为“扩张型心肌病”。心电图示频发性室性早搏,多呈二联律,心肌劳损。超声心电图示扩张型心肌病。为尽快消除频发的室性早搏,防止其发展成室速或室颤,在给病人纠正心衰(强心、利尿)的同时,先静注利多卡因75mg,然后以1mg/min的速度静滴,经30分钟治疗早搏无明显减少,乃将利多卡因加至3mg/min,20分钟后室性早搏明显减少,当用至50分钟(总量255mg)
Female patient, 64 years old. Diagnosed as “dilated cardiomyopathy.” ECG showed frequent premature ventricular contractions, mostly bi-law, myocardial strain. Echocardiography showed dilated cardiomyopathy. As soon as possible to eliminate frequent ventricular premature beats, to prevent the development of ventricular tachycardia or ventricular fibrillation, to correct heart failure (cardiac, diuretic) at the same time, the first injection of lidocaine 75mg, and then 1mg / min speed Intravenous infusion of 30 minutes to treat premature beats without significant reduction, is the lidocaine added to 3mg / min, 20 minutes after premature ventricular contractions significantly reduced when used to 50 minutes (total 255mg)