tachykardiaoireyhtymä

Tachycardia is a medical condition characterized by an abnormally fast heart rate. The normal resting heart rate for adults is typically between 60 and 100 beats per minute (bpm). Tachycardia is defined as a heart rate exceeding 100 bpm. This condition can be caused by various factors, including physical exertion, stress, anxiety, or underlying medical conditions such as hyperthyroidism, anxiety disorders, or certain medications.

Tachycardia can be classified into two main types: sinus tachycardia and supraventricular tachycardia. Sinus tachycardia occurs when the heart's natural pacemaker, the sinoatrial node, sends out electrical signals too quickly. Supraventricular tachycardia, on the other hand, involves abnormal electrical signals originating above the ventricles, often due to re-entry circuits within the atria or atrioventricular node.

Symptoms of tachycardia may include palpitations, shortness of breath, chest pain, dizziness, and fatigue. In severe cases, tachycardia can lead to complications such as heart failure, stroke, or sudden cardiac death. Diagnosis typically involves an electrocardiogram (ECG) to assess heart rhythm and rate, as well as a physical examination and medical history review.

Treatment for tachycardia depends on the underlying cause and severity of symptoms. Lifestyle modifications, such as stress reduction techniques, regular exercise, and a healthy diet, may be recommended. Medications, including beta-blockers, calcium channel blockers, and anti-arrhythmic drugs, may be prescribed to control heart rate. In some cases, procedures such as catheter ablation may be necessary to correct abnormal electrical pathways. Regular follow-up with a healthcare provider is essential to monitor heart health and adjust treatment as needed.