An irregular heartbeat, also called an arrhythmia, can vary widely in seriousness. Sometimes it is harmless and temporary, but in other cases, it can indicate serious or life-threatening conditions that require immediate medical attention. Arrhythmias can cause symptoms such as heart palpitations, chest pain, shortness of breath, dizziness, weakness, or fainting. Serious arrhythmias can lead to complications like stroke, heart failure, cardiac arrest, or sudden death if untreated.
When to Be Concerned
You should seek medical care if the irregular heartbeat:
- Happens frequently or without an obvious reason
- Results in a fast heartbeat at rest (over 100 bpm) or a very slow heartbeat (under 60 bpm)
- Comes with symptoms like chest pain, shortness of breath, excessive sweating, dizziness, fainting, or weakness
- Causes loss of consciousness or blackouts
Potential Risks
- Some arrhythmias increase the risk of blood clots and stroke.
- Others reduce the heart’s ability to pump blood effectively, leading to heart failure.
- Very serious arrhythmias such as ventricular fibrillation can cause sudden cardiac arrest and death.
Summary
An irregular heartbeat can be a benign condition or a sign of a serious heart problem depending on the type, frequency, and associated symptoms. It is important to monitor heart rhythm changes and consult a healthcare provider when symptoms are severe or persistent, to properly diagnose and manage the condition and prevent potentially life-threatening complications.