About-Cardio
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We provide our users the most up-to-date and accurate information on the treatment and prevention of cardio pathologies in accordance with current American and European clinical guidelines.
The information provided on this website is for educational purposes only and should not be considered medical advice. Always consult a licensed physician for diagnosis and treatment.
Causes of a Fast Heartbeat (Tachycardia)
Introduction
A fast heartbeat, or tachycardia, is when the heart rate is over 100 beats per minute. It can be temporary and harmless or indicate a serious medical problem.
Types of Tachycardia
- Sinus Tachycardia – A natural increase due to stress, fever, or exercise.
- Supraventricular Tachycardia (SVT) – Abnormal fast rhythms from the upper part of the heart.
- Atrial Fibrillation – An irregular and often rapid heart rhythm.
- Ventricular Tachycardia – A fast rhythm from the heart’s lower chambers that can be dangerous.
Common Causes
1. Physiological Causes (Normal Reactions)
- Physical activity
- Stress or anxiety
- Fever
- Caffeine or alcohol intake
2. Medical Conditions
- Heart Diseases (coronary artery disease, heart failure)
- Thyroid Problems (hyperthyroidism)
- Anemia (low red blood cell count)
- Dehydration
3. Medication-Related Causes
- Certain asthma inhalers
- Decongestants
- High doses of thyroid hormone medications
When to See a Doctor
Seek medical help if you have: - Severe dizziness - Chest pain - Shortness of breath - Fainting episodes
Prevention and Treatment
- Manage stress
- Avoid caffeine and alcohol
- Treat underlying conditions
- In some cases, medications or procedures (like ablation) may be needed
Conclusion
A fast heartbeat can have many causes, from normal body responses to serious heart conditions. Always consult a doctor if you experience persistent tachycardia, especially with other symptoms.
Source recommendations
1. American Heart Association Guidelines on Tachycardia
- https://www.heart.org/en/health-topics/arrhythmia/about-arrhythmia/tachycardia--fast-heart-rate
- https://cpr.heart.org/en/resuscitation-science/cpr-and-ecc-guidelines/algorithms
- https://www.ahajournals.org/doi/10.1161/cir.0000000000000311
- https://cpr.heart.org/-/media/cpr-files/cpr-guidelines-files/algorithms/algorithmacls_tachycardia_200612.pdf
- https://www.ahajournals.org/doi/10.1161/CIR.0000000000000549
2. European Society of Cardiology Guidelines on Arrhythmias
- https://www.escardio.org/Guidelines/Clinical-Practice-Guidelines/Ventricular-Arrhythmias-and-the-Prevention-of-Sudden-Cardiac-Death
- https://academic.oup.com/eurheartj/article/43/40/3997/6675633
- https://www.escardio.org/Guidelines/Clinical-Practice-Guidelines/Supraventricular-Tachycardia
- https://pubmed.ncbi.nlm.nih.gov/36017572/
- https://www.ahajournals.org/doi/10.1161/01.cir.0000091380.04100.84
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If you or your loved ones experience any of these symptoms, you should consult a doctor in time. Remember that self-medication can be dangerous, and timely diagnosis will preserve the quality and life expectancy.
The heart is an organ that does not know how to "keep silent" if something goes wrong. Chest pain, shortness of breath, swelling, dizziness, and rhythm disturbances are the symptoms that require our attention. The best prevention of heart disease is careful attention to your health, regular checkups with a doctor, and a healthy lifestyle. Take care of your heart, and it will serve you for many years!
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Our answers to your questions are based on the clinical recommendations of countries with the most developed healthcare systems in the field of cardiology in the USA, the EU and Japan.
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Every 3-5 years, half of the scientific approaches to treatment in the field of cardiology are reviewed as a result of specialized scientific discoveries. With us, you don't have to wait these years to learn about the best ways to treat you and your loved ones.