The full form of PAC in medical term is Premature Atrial Contraction.
Premature Atrial Contractions, also known as PACs, are heart rhythm abnormalities that occur when the heart’s upper chambers, called atria, contract earlier than they should. PACs are common and often go unnoticed, but in some cases, they can cause symptoms such as palpitations, shortness of breath, or a fluttering sensation in the chest.
PACs occur when an electrical impulse originating from an area outside the heart’s natural pacemaker, the sinoatrial (SA) node, causes the atria to contract prematurely. It can occur for different reasons, including stress, caffeine or alcohol consumption, smoking, or an underlying heart condition.
While PACs are generally not a cause for concern, they can sometimes lead to more serious arrhythmias, such as atrial fibrillation or atrial flutter. Diagnosis of PACs typically involves an electrocardiogram (ECG) to record the heart’s electrical activity. Treatment for PACs may include lifestyle modifications such as reducing stress, caffeine or alcohol consumption, and quitting smoking.
While PACs can be bothersome and occasionally indicate underlying heart issues, they are generally considered benign. In some cases, medication or other interventions may be necessary to manage symptoms or prevent more serious arrhythmias from occurring. With proper management and care, most people with PACs can live normal, healthy lives.