To decide whether a pacemaker will benefit you, your doctor will consider any symptoms you have of an irregular heartbeat, such as dizziness, unexplained fainting, or shortness of breath.

• 为了确定心脏起搏器对患者的效果，医生会考虑患者存在的所有心律不齐症状（比如眩晕、原因不明的昏倒、或者气短等等）。