Ventricular trigeminy is a repetitive series of two normal heartbeats and one premature ventricular contraction (PVC). Every third heartbeat is a PVC—an extra heartbeat that starts in the heart’s lower chamber (ventricle) and disturbs your regular heart rhythm.
How to Spot Ventricular Trigeminy on Your Watch ECG
Ventricular trigeminy consists of two sinus beats followed by a premature ventricular contraction for three or more consecutive cycles.
These are the characteristics of ventricular trigeminy:
- Rhythm: Irregular
- Rate: Depends on the underlying rate
- P wave: Premature, varies in size and shape
- QRS: Wide
Common Symptoms of Ventricular Trigeminy
Ventricular bigeminy often causes few or zero symptoms. That being said, the extra beats can cause unusual sensations in the chest, such as:
- Fluttering in the chest or neck
- Hard beating, throbbing
- Skipped or missed beats
- Increased awareness of your heartbeat
Any Cause for Concern?
PVCs are common among the general population. The estimated prevalence ranges from 1% to 4% on an electrocardiogram and 40% to 75% on a 24 or 48-hour Holter monitor. Young and healthy adults have shown a highly similar frequency rate of PVCs compared to the older segments of the general population.
However, the extra beats can be strong enough to be painful. If they happen often enough to reduce pumping in your heart, you could feel weak, dizzy, or even faint. And if you have heart disease, trigeminy contractions can lead to unsafe heart rhythms and sudden cardiac death, but this is rare.
As always, if you show signs of potential ventricular trigeminy, contact your healthcare provider as soon as possible to rule out the presence of harmful underlying conditions.
Still Not Sure How to Spot Ventricular Trigeminy on Your Watch ECG?
Your smartwatch can be your partner in looking after your heart. If you’re concerned about ventricular trigeminy, get your smartwatch ECGs analyzed by experts within minutes on the QALY app: iOS and Android.