在临床工作中，经常有人问：“早搏”对健康有没有影响？我们知道，心脏的跳动受最高统帅机关──窦房结的指挥。正常情况下，窦房结按时发出一定频率的冲动，通过像电线似的传导系统传至心房与心室肌肉，由电活动转化为机械收缩，因而心脏产生了整齐、规则的搏动。由于某种原 In clinical work, people often ask: “premature beat” have no effect on health? We know that the beating of the heart is under the command of the highest commander-in-chief of the sino-atrial node. Under normal circumstances, the sinus node sends a certain frequency of impulses on time, transmitted to the atria and ventricular muscles through an electrical conduction system like wires, which translates into mechanical contractions by electrical activity. The heart thus produces a regular and regular pulse. Due to some kind of original