一、安放永久性起搏器的主要适应症 (一)病窦综合症表现窦性停搏、窦房阻滞、严重心动过缓、或心动过缓与心动过速交替出现,可出现头晕和晕厥,可发生于任何年龄,但以老年人常见,一般不伴其它心脏疾病,是安置永久性起搏器的常见适应症。 (二) 房室传导阻滞一般不合并其它心脏疾病,有下列三种类型。 1.Ⅰ°度房室传导阻滞:特征是PR First, the main indications for permanent pacemaker (a) sick sinus syndrome Sinus arrest, sinoatrial block, severe bradycardia, or bradycardia and tachycardia alternately, there may be dizziness and Syncope can occur at any age, but common in the elderly, generally not associated with other heart disease, is a common indication of placement of permanent pacemaker. (B) atrioventricular block is generally not associated with other heart disease, the following three types. 1. I degree atrioventricular block: characterized by PR