Have you ever felt your heart suddenly racing, fluttering, pounding or skipping a beat? These changes in your heartbeat may be caused by arrhythmia, a condition that affects the heart’s normal rhythm.
Arrhythmia can make your heart beat too fast, too slowly or irregularly. While some types are harmless, others can affect your heart health and may need treatment. Knowing the symptoms, causes and treatment options can help you understand when an unusual heartbeat needs medical attention.
Your heart has an electrical system that controls your heartbeat. Normally, electrical signals travel through the heart in an organised way. This allows the heart chambers to contract and pump blood properly.
Arrhythmia occurs when there is a problem with this electrical activity. As a result, the heart may beat too quickly, too slowly or in an irregular pattern.
Arrhythmia is also called a heart arrhythmia or cardiac arrhythmia. An abnormal heartbeat does not always mean that you have serious heart disease.
Some rhythm changes are harmless and may not require treatment. However, certain arrhythmias can affect how well the heart pumps blood and may increase the risk of complications. This is why it is important to identify the exact type of arrhythmia and understand what is causing it.
There are several arrhythmia types. They are generally classified based on how fast the heart beats and where the abnormal electrical signals begin.
|
Type of arrhythmia |
What it means |
|
The heart beats faster than normal. |
|
|
The heart beats slower than normal. |
|
|
Atrial fibrillation(AFib) |
An irregular rhythm that starts in the upper chambers of the heart. |
|
Atrial flutter |
A fast rhythm that starts in the upper chambers. |
|
Premature contractions |
Extra or early heartbeats that can feel like a skipped beat. |
|
Ventricular arrhythmias |
Abnormal rhythms that start in the lower chambers of the heart. |
|
Sinus arrhythmia |
A change in heart rate that commonly occurs with breathing. |
Tachycardia means the heart is beating faster than normal. In adults, a resting heart rate above 100 beats per minute is generally considered tachycardia.
It can happen for many reasons, including exercise, fever, stress or certain medical conditions. Some types of tachycardia are harmless, while others may require treatment.
Bradycardia means the heart is beating slower than normal. In adults, a resting heart rate below 60 beats per minute is generally considered bradycardia.
A slow heart rate is not always a problem. It can occur normally in some healthy people, particularly those who exercise regularly. Treatment may be needed if bradycardia causes symptoms or affects the heart's ability to pump blood.
Atrial fibrillation, or AFib, is one of the most common types of cardiac arrhythmia. It causes an irregular rhythm in the upper chambers of the heart. AFib is important to diagnose because it can increase the risk of blood clots and stroke.
Atrial flutter is a fast heart rhythm that begins in the upper chambers. The rhythm is usually more organised than atrial fibrillation but can still affect how efficiently the heart works.
Premature contractions are extra heartbeats that occur earlier than expected. You may feel them as a skipped beat, fluttering sensation or a stronger heartbeat. Occasional premature beats can happen even in people with otherwise healthy hearts.
Ventricular arrhythmias start in the lower chambers of the heart. Some can be very serious because they may prevent the heart from pumping blood effectively. Ventricular fibrillation, for example, can cause cardiac arrest and requires immediate emergency treatment.
Sinus arrhythmia is a natural change in heart rate that commonly occurs with breathing. Your heart rate may increase slightly when you breathe in and slow down when you breathe out. This type of sinus arrhythmia is usually normal, particularly in younger and healthy people.
Some people with arrhythmia do not notice any symptoms. Others may feel a clear change in their heartbeat. Common arrhythmia symptoms include:
The symptoms can vary depending on the type of arrhythmia and how it affects your heart.
An occasional skipped heartbeat may not be an emergency. However, seek immediate medical care if an abnormal heartbeat occurs with severe chest pain, severe difficulty breathing, fainting or significant dizziness.
These symptoms can sometimes indicate a serious heart rhythm problem or another medical emergency.
Some arrhythmias are harmless, while others can be dangerous or life-threatening. The risk depends on the type of arrhythmia, how long it lasts and whether you have an underlying heart condition.
For example, some premature contractions may not require treatment. In contrast, certain ventricular arrhythmias can lead to cardiac arrest. Atrial fibrillation can also increase the risk of blood clots and stroke.
So, if you have an irregular heartbeat, the important question is not only, “Is arrhythmia dangerous?” It is also, “What type of arrhythmia do I have, and what is causing it?”
There are many possible causes of arrhythmia. Sometimes, an abnormal rhythm is linked to an existing heart condition. In other cases, it may be related to another health problem, medicine or lifestyle factor.
Common causes and triggers include:
Some people may also develop an arrhythmia because of an inherited condition that affects the heart's electrical system.
Yes, arrhythmia can occur even if you do not have known heart disease.
Stress, dehydration, lack of sleep, caffeine, alcohol and certain medicines can affect your heart rhythm. Some people may also have an inherited electrical condition without obvious structural heart disease.
Therefore, experiencing palpitations does not automatically mean that you have serious heart disease. However, repeated or unexplained symptoms should be checked by a healthcare professional.
Arrhythmia diagnosis usually starts with a review of your symptoms, medical history and heart rhythm. Your doctor may check your pulse and blood pressure, listen to your heart and ask when your symptoms occur. The tests you need depend on your symptoms and the type of arrhythmia your doctor suspects.
An ECG is one of the main tests used to identify an abnormal heart rhythm. It records the electrical activity of your heart and can show whether your heart is beating too quickly, too slowly or irregularly.
Some arrhythmias happen only occasionally and may not appear during a short ECG.
In such cases, your doctor may recommend a Holter monitor or another portable heart monitor. These devices record your heart rhythm for a longer period and can help identify an abnormal rhythm when symptoms occur.
Blood tests may be recommended to check for conditions that can affect your heart rhythm. These may include thyroid problems or changes in electrolyte levels.
An echocardiogram uses sound waves to create images of your heart. It helps assess the heart's structure and pumping function and can identify conditions that may be linked to an arrhythmia.
If your symptoms occur during physical activity, an exercise stress test may help your doctor see how your heart rhythm responds to exercise.
An electrophysiology study may be recommended when a more detailed assessment of the heart's electrical system is needed. It can help identify where an abnormal electrical signal is coming from and guide treatment in selected patients. Other tests, such as cardiac CT or MRI, may also be recommended depending on your condition.
Arrhythmia treatment depends on the type of rhythm problem, its cause, your symptoms and your overall heart health. Some arrhythmias do not need treatment, while others may require medicines, procedures or implanted devices.
Medicines may help control your heart rate or restore and maintain a normal rhythm. Depending on your condition, your doctor may prescribe:
The choice of medicine is different for each person. Do not stop or change heart medicines without speaking with your doctor.
Lifestyle changes can help manage some arrhythmias and reduce possible triggers. Your doctor may recommend:
Keeping a record of when your symptoms occur can also help identify possible triggers.
Cardioversion is a treatment used to restore a normal heart rhythm in certain types of arrhythmia. It may involve a controlled electrical shock to reset the heart rhythm. In some situations, medicines may be used for cardioversion.
Catheter ablation is a minimally invasive procedure used to treat certain abnormal heart rhythms.
During the procedure, thin tubes called catheters are guided into the heart. The doctor identifies the area causing the abnormal electrical signals and uses heat or cold energy to create small areas of scar tissue. This blocks the abnormal signals responsible for the arrhythmia.
A pacemaker may be recommended when the heart beats too slowly or when there is a problem with the heart's electrical conduction system. The device sends small electrical impulses to help maintain an appropriate heart rate.
An ICD continuously monitors the heart rhythm. If it detects certain dangerous heart rhythms, it can deliver an electrical shock to help restore a normal rhythm. An ICD may be recommended for people who have a high risk of certain life-threatening ventricular arrhythmias.
You should consider seeing a cardiologist if you repeatedly experience:
Seek emergency medical care for severe chest pain, difficulty breathing, fainting or severe dizziness associated with an abnormal heartbeat.
Early evaluation can help identify the cause and determine whether you need treatment.
Arrhythmia can be harmless or may need medical treatment, depending on its type and cause. If you experience repeated palpitations, an irregular heartbeat or related symptoms, timely evaluation can help identify the problem and guide the right treatment.
Not every arrhythmia can be prevented, particularly those caused by inherited conditions or certain heart problems. However, you can reduce some risk factors by not smoking, limiting alcohol, maintaining a healthy weight, staying active and managing conditions such as high blood pressure. Identifying and avoiding your personal triggers may also help.
Yes. Stress and anxiety can increase your heart rate and may trigger palpitations or certain arrhythmias. However, not every fast heartbeat caused by anxiety is an arrhythmia.
If your symptoms are frequent, severe or unexplained, it is important to get them evaluated rather than assuming anxiety is the only cause.
There is no single list of foods that everyone with arrhythmia must avoid. However, caffeine, alcohol and stimulant-containing products can trigger symptoms in some people.
Certain cold and cough medicines, supplements and other medicines may also affect heart rhythm.
If you notice that a particular food, drink or medicine triggers your symptoms, discuss it with your doctor. Do not stop prescribed medicines without medical advice.
Certain ventricular arrhythmias, particularly ventricular fibrillation, can be life-threatening because they can stop the heart from pumping blood effectively.
Some other abnormal rhythms can also become dangerous depending on the person's heart health.
A new or unexplained abnormal heartbeat should therefore be properly evaluated.
Pregnancy causes several changes in the cardiovascular system, including an increase in blood volume and heart rate. These changes can make palpitations more noticeable and may contribute to some rhythm problems.
If you are pregnant and develop a new, persistent or severe irregular heartbeat, particularly with dizziness, fainting, chest pain or breathlessness, speak with your healthcare provider promptly.
Yes. Long-term high blood pressure can affect the heart and is associated with a higher risk of certain arrhythmias, including atrial fibrillation.
Managing blood pressure through appropriate treatment and lifestyle changes is therefore an important part of protecting your heart health.
Yes. Arrhythmia can occur in people without known heart disease. Stress, dehydration, lack of sleep, caffeine, alcohol, certain medicines and inherited electrical conditions can affect heart rhythm.
If you repeatedly experience palpitations, skipped beats or an irregular heartbeat, a medical evaluation can help identify the cause.
Written and Verified by:
Dr. Shubham Sharma is a Gold Medalist DM Cardiology-trained Cardiac Electrophysiologist with specialized expertise in the diagnosis and treatment of heart rhythm disorders (arrhythmias). He has extensive experience in performing electrophysiology studies, catheter ablation procedures, and implantation of advanced cardiac rhythm devices.
Similar Cardiac Sciences Blogs
Book Your Appointment TODAY
© 2024 RBH Jaipur. All Rights Reserved.
