taquicàrdia

Taquicàrdia refers to a heart rate that is faster than normal. For adults at rest, a heart rate above 100 beats per minute is generally considered a sign of taquicàrdia. The normal resting heart rate for adults is typically between 60 and 100 beats per minute. In children, the normal resting heart rate varies depending on age and is generally higher than in adults.

There are several types of taquicàrdia, categorized by the origin of the rapid heartbeat in the heart. Some common types include sinus taquicàrdia, supraventricular taquicàrdia, and ventricular taquicàrdia. Sinus taquicàrdia is a normal response to physical activity, stress, fever, or other physiological changes. Other forms of taquicàrdia may indicate underlying heart conditions or other medical issues.

Symptoms of taquicàrdia can vary and may not always be present. When symptoms do occur, they can include palpitations, a racing heartbeat, shortness of breath, dizziness, lightheadedness, chest pain, or fainting. In some cases, especially with prolonged or severe taquicàrdia, it can lead to more serious complications such as heart failure or stroke.

The causes of taquicàrdia are diverse and can range from simple lifestyle factors to complex medical conditions. Common causes include exercise, fever, dehydration, stress, anxiety, caffeine, nicotine, certain medications, anemia, thyroid problems, and heart disease. Diagnosing taquicàrdia typically involves a medical history, physical examination, and an electrocardiogram (ECG) to assess the heart's electrical activity. Further tests may be conducted depending on the suspected cause. Treatment depends on the type of taquicàrdia, its cause, and the presence of symptoms or complications.