Premature Ventricular Beat refers to an abnormal heart rhythm, specifically an extra heartbeat that originates in the ventricles or the lower chambers of the heart, occurring earlier than the expected regular heartbeat. It is also known as a premature ventricular contraction (PVC).
In a normal heart rhythm, electrical signals start in the sinoatrial (SA) node, which acts as the natural pacemaker of the heart, and spread through the atria, causing them to contract. The signals then pass through the atrioventricular (AV) node and travel down to the ventricles, allowing them to contract and pump blood to the rest of the body. However, in the case of a premature ventricular beat, an extra electrical signal initiates a ventricular contraction before the normal sequence can complete, resulting in an irregular heartbeat.
These abnormal beats are often described as early, abnormal or extra heartbeats, often felt as a skipped, fluttering, or pounding sensation in the chest. While they can occur in individuals with a healthy heart, premature ventricular beats can also be associated with various heart conditions, such as coronary artery disease, heart failure, or valve disorders. They can also result from factors like excessive caffeine or nicotine intake, stress, anxiety, or the use of certain medications.
Though generally harmless and may not require treatment, frequent or troubling premature ventricular beats may be managed through lifestyle modifications, stress reduction techniques, or by addressing the underlying heart condition. A proper diagnosis and consultation with a healthcare professional is recommended to determine the cause and appropriate course of action.
