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一、心脏起搏系统的分类 1.临时体外起搏器临时体外起搏器主要用于临时性的抢救,如心肌梗塞、药物中毒、心脏直视手术中或术后恢复期,或因心率过缓而偶发阿——斯氏综合征。因此,起搏频率、脉冲幅度、感知灵敏度等项参数都应在较宽范围内调节,以适应各种紧急条件的需要,目前多数体外起搏器以心室按需型为主,也有少量心房同步起搏器,以及房——室顺序生理型起搏器。还有部分体外起搏器可在VVI/VAT/VOO之间选择类型。
First, the classification of cardiac pacing system 1. Temporary external pacemaker External pacemaker is mainly used for temporary rescue, such as myocardial infarction, drug poisoning, open heart surgery or postoperative recovery, or because of heart rate too Slow and sporadic A - Syndrome. Therefore, the parameters of pacing frequency, pulse amplitude and perceived sensitivity should be adjusted within a wide range to meet the needs of various emergency conditions. At present, most in vitro pacemakers are ventricular-on-demand and a small amount of atrial synchronization Pacemaker, and room-room sequential physiologic pacemaker. There are some external pacemakers can choose between VVI / VAT / VOO type.