###Human: Why are palpitations occurring even after pacemaker implantation? ###Assistant: Hello, Welcome back to icliniq.com. I have gone through the report that you have provided. He is having the tachycardia-bradycardia syndrome. In this case, the pacemaker avoids his bradycardia episodes only. For his tachycardia episodes, drugs can be given. Sometimes the drug controls it perfectly and sometimes it does not. You have to adjust the drug doses to control his tachycardia episodes. Consult your doctor for dose adjustment. In addition to the Prolomet (Metoprolol), I suggest Digoxin can also be added. Consult your specialist doctor, discuss with him or her and with their consent take the medicines. Regards. For more information consult a cardiologist online -->