Columbia News

The prevalence of atrial fibrillation (AFib), a common cardiovascular condition in the United States, is significantly higher than previously thought. According to a 2024 study published in the Journal of the American College of Cardiology, at least 10.5 million adults are currently affected by AFib, compared to earlier estimates of 3.3 million.

Atrial fibrillation is characterized by a rapid and irregular heartbeat that can lead to serious health issues such as stroke or sudden death if left untreated. Many individuals with AFib may be unaware they have it due to a lack of symptoms. Common signs include an irregular heartbeat, heart palpitations, lightheadedness, shortness of breath, fatigue, and chest pain.

The U.S. Preventive Services Task Force advises screening for adults aged 50 and above without symptoms or other risk factors. Those with conditions like high blood pressure and diabetes should consider earlier screening. Dr. Dana Valencia, a cardiologist at Moberly Regional Medical Center, emphasizes that "AFib is treatable with lifestyle modifications, medication, and in some cases surgical procedures." She stresses the importance for adults to understand their risk factors and consult their doctors for appropriate measures.

High blood pressure accounts for one in five AFib cases. Other contributing factors include age, obesity, diabetes, heart failure, sleep apnea, alcohol use, and smoking. The risk of stroke is notably higher in people with AFib; strokes related to this condition tend to be more severe than those from other causes. Additionally, AFib can result in heart attack, heart failure, and sudden cardiac arrest.

Dr. Valencia warns that "if left untreated, AFib can have devastating consequences for patients and their families." She advises high-risk individuals or those experiencing symptoms to undergo screening through an electrocardiogram—a non-invasive test that detects irregular heart rhythms.