Episodic premature ventricular contractions do not usually cause sudden death.
Episodic premature ventricular contractions, also known as episodic ventricular pre-systoles, are ventricular pre-systoles caused by early depolarization of ectopic foci of excitation in the ventricular muscle below the Hitchcock’s bundle and its branches. Episodic premature ventricular contractions are the most common cardiac arrhythmia in the clinical setting, and can be caused by any factor that can lead to early depolarization of the ventricular myocardium.
Episodic premature ventricular contractions do not affect hemodynamic changes, and some patients have compensatory intervals after episodic ventricular pre-systole, so they do not cause a large change in ejection volume, and they do not cause sudden death, so patients do not need to worry too much.
When patients experience episodic premature ventricular contractions, it is recommended that they go to the hospital in time for diagnosis, assessment of the cause of the disease and targeted interventions.