bradikádiához

Bradycardia refers to a heart rate that is slower than normal. In adults, a resting heart rate below 60 beats per minute is generally considered bradycardia. However, a slow heart rate is not always a medical problem. Athletes often have lower resting heart rates due to their improved cardiovascular fitness. Similarly, some people naturally have a slower heart rate without any underlying health issues.

The symptoms of bradycardia can vary depending on its severity and the individual. Some people with bradycardia experience no symptoms at all. Others may suffer from dizziness, fatigue, fainting (syncope), shortness of breath, chest pain, or confusion. These symptoms arise because the slow heart rate may not be sufficient to pump enough oxygenated blood to the body's organs and tissues.

Bradycardia can be caused by a variety of factors. It can be a consequence of aging, particularly due to wear and tear on the heart's electrical system. Certain medical conditions, such as hypothyroidism, electrolyte imbalances, and heart disease (including heart attacks and heart failure), can also lead to bradycardia. Some medications, particularly those used to treat high blood pressure or heart rhythm disorders, can have a slow heart rate as a side effect. In some cases, bradycardia may be a symptom of a more serious underlying condition affecting the heart's electrical conduction system, such as heart block. Diagnosis typically involves an electrocardiogram (ECG) to assess the heart's electrical activity and heart rate. Treatment depends on the cause and severity of the bradycardia and may involve adjusting medications, treating underlying medical conditions, or implanting a pacemaker to regulate the heart rate.