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人工心脏起搏器的发明,让药物无法治疗的严重心律失常患者的生命得以延续。发展至今,每年约有十万人植入心脏起搏器。不久的将来,更先进的心脏起搏器能让患者不再因为更换电池、感染和导线破损等而带来痛苦,做到一劳永逸吗?心脏为什么会跳动?心脏跳动时泵血输送至全身,一旦停止跳动,整个身体机器就会跟着停下来,那是什么让心脏不停地跳动呢?心脏中有一些细胞能够产生生物电活动,引起和控制心肌收缩,让心脏维持着规律的跳动。有一种病症叫心传导阻
The invention of artificial pacemakers, so that drugs can not be treated in patients with serious arrhythmia to extend the life. So far, about 100,000 people implant pacemakers every year. In the near future, the more advanced cardiac pacemaker will make patients no longer suffer from the pain of replacing the battery, the infection and the damaged wire, and so on. Why does the heart beat? When the heart beat, the blood will be delivered to the whole body once Stop beating, the whole body will follow the machine stopped, and that is what makes the heart beating constantly? Some cells in the heart can produce bio-electrical activity, causing and controlling myocardial contraction, so that the heart to maintain a regular beating. There is a condition called heart conduction resistance