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在有症状的患者中对心脏进行程控电刺激能诱发和终止折返性心动过速,有助于诊断和处理室性和室上性心动过速。连续进行程控电刺激对预测治疗的效果特别有用:如在治疗前能诱发心动过速,治疗后不能诱发,则可认为这种治疗能防止心动过速复发。此外,程控电刺激还能用于评定不明原因的心悸。但程控电刺激需用心内导管,故在小儿中的应用受到限制。由于费用昂贵,在幼儿中寻找血管困难和在荧光透视下进行电极导管定位时将受到放射线照射,有些人不同意进行这项检查,因此目
Program-controlled electrical stimulation of the heart in symptomatic patients induces and terminates reentrant tachycardia, helping to diagnose and manage both ventricular and supraventricular tachycardias. Continuous programmed electrical stimulation is particularly useful for predictive therapy: if tachycardia can be induced before treatment and can not be induced after treatment, then this treatment may be considered to prevent the recurrence of tachycardia. In addition, programmed electrical stimulation can be used to assess unexplained palpitations. But the program-controlled electrical stimulation of the need for intracardiac catheterization, so the application in children is limited. Because of the high cost, some people do not agree to carry out this examination because of the cost, difficulties in finding blood vessels in young children, and exposure to fluoroscopy when conducting catheterization. Therefore,