Palpitations are a common symptom and often cause understandable concern. People describe palpitations as fluttering, pounding, racing, or a feeling that the heart has skipped a beat. In many cases, they are harmless. However, there are situations where they can signal an underlying heart rhythm problem.
The key is to understand the pattern, triggers, and associated symptoms rather than assume the worst.
What are palpitations?
Palpitations are simply an awareness of the heartbeat. Most of the time, we are not conscious of our heart beating. When the rhythm changes, speeds up, or becomes irregular, it can become noticeable.
Palpitations may feel like:
- a rapid heartbeat
- an irregular pulse
- a sudden thump in the chest
- a fluttering sensation
These sensations can last seconds, minutes, or longer. The duration and frequency help guide assessment.
Common harmless causes of palpitations
In many people, they are benign. Stress, anxiety, caffeine, alcohol, lack of sleep, and dehydration can all trigger temporary rhythm changes.
Extra beats, known as ectopic beats, are very common. They can feel like a missed beat followed by a stronger beat. Although uncomfortable, they are usually not dangerous in otherwise healthy hearts. Because benign palpitations are so common, most episodes do not indicate serious heart disease.
When palpitations may indicate a heart problem
There are situations where they can reflect an abnormal heart rhythm, also known as an arrhythmia.
They are more likely to be significant when they:
- occur frequently or last for prolonged periods
- start and stop suddenly
- occur during exercise
- are associated with dizziness or blackouts
- are linked to chest discomfort or breathlessness
In these cases, the heart rhythm may be beating too fast, too slow, or irregularly in a way that affects circulation.
Atrial fibrillation and palpitations
One of the most common rhythm problems associated with palpitations is atrial fibrillation. In this condition, the upper chambers of the heart beat in a disorganised way, leading to an irregular pulse.
Some people with atrial fibrillation feel clear palpitations. Others notice only fatigue or reduced exercise tolerance. Identifying this rhythm is important because it increases the risk of stroke and may require treatment.
Supraventricular tachycardia
Another cause of sudden racing palpitations is supraventricular tachycardia. This condition often begins and ends abruptly and can cause a rapid heart rate.
Episodes may last minutes or longer. Some people feel light headed during attacks. Although often not life threatening, recurrent episodes may require treatment.
Slow heart rhythms and palpitations
While they usually relate to fast rhythms, slow heart rhythms can also cause awareness of the heartbeat. When pauses occur, the following beat may feel stronger. Slow rhythms are more concerning when accompanied by dizziness or blackouts.
Palpitations during exercise
Palpitations that appear during physical activity deserve particular attention. The heart should respond to exercise in a coordinated and controlled way. If they consistently occur with exertion, this raises the possibility of an underlying rhythm problem or structural heart condition. Assessment helps clarify whether further testing is required.
Risk factors and palpitations
Risk factors influence how doctors interpret them. High blood pressure, heart valve disease, previous heart attacks, and a family history of rhythm problems increase the likelihood that they may be cardiac in origin.
Age also plays a role. While younger individuals often experience benign palpitations, rhythm problems become more common with age. However, they can occur in healthy individuals with no structural heart disease.
How palpitations are assessed
Assessment begins with a detailed discussion of the episodes. Important details include how long they last, how often they occur, what triggers them, and what symptoms accompany them.
An ECG is often the first test. Because they can be intermittent, longer term monitoring may be needed. This can involve wearing a portable heart monitor to record rhythm over 24 hours or longer.
An echocardiogram may be arranged to assess heart structure and function if there is concern about underlying disease. Not everyone with palpitations needs extensive testing. Doctors tailor investigations to the likelihood of a significant problem.
What normal tests mean
Normal results are reassuring. They make serious rhythm disorders less likely and often confirm that palpitations are benign. When they persist despite normal tests, lifestyle factors often play a role. Reducing caffeine, improving sleep, managing stress, and maintaining hydration can significantly reduce symptoms.
When to seek urgent advice
They require urgent attention if they are accompanied by chest pain, severe breathlessness, or collapse. Sudden, sustained racing of the heart with marked dizziness should also be assessed promptly.
Putting palpitations into perspective
Most palpitations are not dangerous. They are common and often linked to everyday triggers. However, persistent, worsening, or symptomatic palpitations should not be ignored. Careful assessment allows doctors to distinguish between benign rhythm variations and conditions that require treatment.
If you are concerned about them or would like help understanding symptoms or test results, you can get in touch with me to arrange an assessment and discuss your situation in a clear and measured way. Palpitations are common, and in many cases they are harmless. With appropriate evaluation, it is usually possible to provide reassurance or guide treatment based on clear clinical evidence.