Introduction
A slow heart rate is not always a sign of disease. It is common in people who are physically fit and can also occur during sleep. The key question is whether the rate is causing symptoms, such as dizziness, blackouts, unusual fatigue or breathlessness, or is caused by an underlying condition or medication.
Assessment and treatment choices
An ECG records the rhythm at one point in time; longer monitoring can show how the heart behaves during sleep, daily activity and symptoms. We also review medicines and may check blood tests, including thyroid function, because treatable causes can sometimes be identified.
If there is a clear connection between a slow rhythm or pauses and important symptoms, a pacemaker may be considered. The decision rests on the whole pattern, not a single low pulse measurement.
Key points
- An ECG and rhythm monitor can show how slow the heart is and whether there are pauses.
- Medicines, thyroid problems and other conditions may contribute.
- Some people with symptomatic slow rhythms benefit from a pacemaker.
Patient note
“The number on a pulse reading matters less than the whole picture: your symptoms, the ECG, and how the heart behaves over time.”
Questions about a slow heart rate
Do symptoms correlate with a documented slow rate or pause? Are any medicines contributing, and can they be reviewed safely? Could another health condition be contributing, and would monitoring help clarify the pattern?
FAQ
Does every slow heart rate need treatment?
No. Treatment is considered when there is a clear problem with the rhythm or when the slow rate is causing important symptoms.