Sudden rapid heartbeat accompanied by dizziness may be the presence of pre-excitation syndrome, cerebral nerve dysfunction, coronary artery disease, etc., according to the cause of verapamil, aspirin and other drugs, or electrical resuscitation and other ways of treatment. 1. Pre-excitation syndrome: a clinical syndrome caused by the early agitation of part of the ventricular muscle due to abnormal inter-atrial conduction, treatment can be given to the non-dihydropyridine calcium channel blocker verapamil and other drugs, or electric resuscitation, radiofrequency ablation and other ways. 2. Cerebral neurological dysfunction: transient acceleration of heartbeat and dizziness can be caused by exertion, excessive tension, etc., which can be relieved after rest. 3. Coronary heart disease: anti-platelet drugs such as aspirin, isosorbide nitrate, or percutaneous coronary intervention. The above drugs need to be used under the guidance of a doctor.