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患者男性,30岁,因阵发性心悸,乏力伴反复发作头昏、黑矇2年入院。诊断病态窦房结综合征。于1991年1月4日在TOSHIBA SSH-160彩色多普勒超声心动图的引导下安置起搏器。经左头静脉插入心内膜起搏电极导管(CPI 4150—031530),以二维超声心动图心尖四腔观及肋下四腔观进行引导,清楚显示出电极导管由右房经三尖瓣口进入右室心尖部,遂将起搏电极导管置入右室心尖近室间隔部,心腔内心电图呈rS型,ST段抬高6mV。测起搏阈值为0.8V,心肌阻抗775Ω,体表心电图示电轴左偏—77°,QRS波呈完全性左束支阻滞图形。令患者咳嗽、翻身均无变化,便于左上胸壁埋入CPI公司Astra T_(?)型起搏器,起搏良好。三日后起床活动。出院前胸片示起搏电极位置及心腔内弧度适度,无扭曲、打弯现象。
Male patient, 30 years old, due to paroxysmal palpitations, fatigue with repeated episodes of dizziness, malaria hospitalization for 2 years. Diagnosis of sick sinus syndrome. Pacemaker was placed on January 4, 1991 under the guidance of TOSHIBA SSH-160 color Doppler echocardiography. The left ventricle was inserted into the endocardial pacing lead (CPI 4150-031530) and guided by a two-dimensional echocardiographic apical four-chamber view and a subfoveal four-chamber view clearly showing that the lead from the right atrium through the tricuspid valve Into the right apex of the mouth into the mouth, then the pacemaker lead into the right ventricular apex ventricular septum, intracardiac electrocardiogram rS-type, ST segment elevation of 6mV. Measured pacing threshold is 0.8V, myocardial impedance 775Ω, surface ECG left axis deviation of -77 °, QRS wave was complete left bundle branch block pattern. So that patients cough, stand up without change, easy to embed the top left chest wall CPI company Astra T type pacemaker, pacing good. Three days later to get up. Before discharge from the chest showed pacing electrode position and intracavity moderate curvature, no distortion, bending phenomenon.