What is ventricular premature beats? What is sinus rhythm?

Ventricular premature beats refer to premature ventricular contractions of the heart. The main symptoms of the patient are chest tightness, palpitations and dizziness. Secondly, there is also an association with taking special drugs. Sinus rhythm is the normal heart rate. Sinus node is the pacemaker of heart activity. The rhythm emitted by sinus node is called sinus rhythm.