Premature supraventricular beats, also known as premature supraventricular contractions (PSVCs), are abnormal heartbeats that originate in the atria or atrioventricular (AV) node. These irregular contractions occur prematurely, before the next normal heartbeat should take place.
In a normal heart rhythm, electrical signals travel through specific pathways in the heart, causing the chambers to contract and pump blood. However, in the case of premature supraventricular beats, an extra electrical impulse is generated, leading to an early heart contraction.
The primary cause of premature supraventricular beats is disturbances in the electrical system of the heart. These can be triggered by various factors, including stress, caffeine, nicotine, alcohol, certain medications, or an underlying structural heart condition. In some cases, no specific cause can be identified.
Individuals experiencing premature supraventricular beats may feel palpitations, a sensation of skipped heartbeat, or a flip-flop feeling in the chest. However, these beats are generally harmless and often resolve on their own without treatment. Only if the frequency or duration of these beats becomes excessive or the symptoms are severe, medical intervention may be required.
Diagnosis of premature supraventricular beats is usually made through an electrocardiogram (ECG) or a Holter monitor, which records the heart's electrical activity over a period of time. Treatment options may include lifestyle modifications to avoid triggers, medications to control heart rhythm, or procedures like catheter ablation to eliminate the source of the abnormal beats.
Overall, premature supraventricular beats are an irregularity in the heart's electrical system characterized by early contractions originating from the atria or AV node. While generally harmless, individuals experiencing these beats should
