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男性患者86岁。于1987年5月2日因冠心病高度房室传导阻滞,由我院经左头静脉插入电极,安置YCP—Ⅱ型VVI埋置式起搏器。因电源耗竭于1989年1月28日更换YCP—ⅡA型起搏器。13个月后,因出现感知不良,更换由另一患者体内取出的YCP—ⅡA型起搏器。该起搏器虽已使用近10个月,但请厂家测试,预调频率及磁频率均同出厂时(71次/分),脉冲宽度由0.56ms增为O.58ms,脉冲幅度由5.1V减为5V,灵敏度由2mV增为2.1mV,反拗期仍为
Male patient 86 years old. On May 2, 1987 because of a high degree of atrioventricular block of coronary heart disease, the left anternal vein was inserted into the electrode from our hospital to place the YCP-Ⅱ VVI embedded pacemaker. Due to power depletion in January 28, 1989 replacement YCP-Ⅱ A pacemaker. Thirteen months later, the patient was replaced by a YCP-IIA pacemaker taken out of the other patient due to a perception disorder. Although the pacemaker has been used for nearly 10 months, please factory test, preset frequency and magnetic frequency are the same factory (71 beats / min), the pulse width from 0.56ms to O.58ms, the pulse amplitude from 5.1V Reduced to 5V, the sensitivity increased from 2mV to 2.1mV, anti-stubborn still