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.
Symptoms of Sinus Bradycardia
Introduction
Sinus bradycardia is a condition where the heart rate is lower than 60 beats per minute. It originates from the sinoatrial (SA) node, which is the natural pacemaker of the heart. While it can be normal in athletes and during sleep, in some cases, it may indicate an underlying health problem.
Symptoms of Sinus Bradycardia
Sinus bradycardia can be asymptomatic or present with various symptoms depending on the degree of heart rate reduction and its impact on blood circulation. Common symptoms include:
1. Fatigue and Weakness
- Reduced heart rate can lead to inadequate blood flow to muscles and organs, causing tiredness.
2. Dizziness and Lightheadedness
- Slow heart rate may reduce oxygen delivery to the brain, leading to dizziness.
3. Fainting (Syncope)
- In severe cases, insufficient circulation can trigger loss of consciousness.
4. Shortness of Breath
- Some patients experience difficulty breathing, especially during exertion.
5. Chest Pain or Discomfort
- Low heart rate may lead to insufficient oxygen supply to the heart muscle, especially in individuals with coronary artery disease.
6. Confusion or Memory Problems
- Reduced blood flow to the brain can cause cognitive impairment in some individuals.
7. Exercise Intolerance
- People with sinus bradycardia may find it difficult to perform physical activities due to reduced cardiac output.
When to Seek Medical Help?
Seek medical attention if you experience persistent dizziness, fainting, severe fatigue, or chest pain. Sinus bradycardia may require treatment if it leads to significant symptoms or is associated with other conditions such as heart disease, hypothyroidism, or electrolyte imbalances.
Source recommendations
1. American College of Cardiology/American Heart Association (ACC/AHA) Guidelines on Bradycardia
- https://www.ahajournals.org/doi/10.1161/CIR.0000000000000628
- https://www.jacc.org/guidelines/bradycardia
- https://www.acc.org/latest-in-cardiology/ten-points-to-remember/2018/11/05/15/12/2018-acc-aha-hrs-guideline-on-bradycardia
- https://pubmed.ncbi.nlm.nih.gov/30586772/
- https://www.thecardiologyadvisor.com/news/acc-aha-hrs-release-updated-bradycardia-diagnosis-and-management-guidelines/
2. European Society of Cardiology (ESC) Guidelines for the Diagnosis and Management of Syncope
- https://www.escardio.org/Guidelines/Clinical-Practice-Guidelines/Syncope-Guidelines-on-Diagnosis-and-Management-of
- https://academic.oup.com/eurheartj/article/39/21/1883/4939241
- https://pubmed.ncbi.nlm.nih.gov/29562304/
- https://www.jacc.org/doi/10.1016/j.jacc.2019.09.012
- https://pubmed.ncbi.nlm.nih.gov/19713422/
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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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