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心室电生理检查在判定反复发作的室性心动过速(VT)的可能机制和制定有效的治疗措施方面是一重要手段。本研究旨在对正常与急性心肌梗塞(AMI)犬在不同条件下进行不同方式、不同参数的心室刺激,试图为临床提供一些参考指标。材料与方法取杂种成年犬10只,静脉麻醉,人工呼吸,由股动静脉分别置入电极导管同时监测血压。电极导管用二维超声心动图及心内膜电图进行心腔内定位。分别在结扎冠状动脉前(作正常对照组)后5小时内采用三种心室刺激方式分期作电生理
Ventricular electrophysiology is an important tool in determining possible mechanisms of recurrent ventricular tachycardia (VT) and in developing effective treatment. The purpose of this study is to investigate the ventricular stimulation of AMI dogs in different ways and under different conditions in different conditions, trying to provide some reference indexes for clinical practice. MATERIALS AND METHODS Ten hybrid adult dogs were anesthetized, resuscitated, and resuscitated respectively by the femoral arterial and venous catheters while monitoring blood pressure. Electrocardiac catheterization was performed with two-dimensional echocardiography and endocardial electrocardiography. Before the ligation of the coronary artery (normal control group) within 5 hours after the use of three ventricular stimulation for staging electrophysiological