Atrial Fibrillation Symptoms: What You Need to Know

Atrial fibrillation, commonly known as AFib, presents a wide range of symptoms that can vary greatly from person to person. Some individuals may experience no noticeable symptoms at all, especially if their heart rate remains within a normal or controlled range.

Common Symptoms of Atrial Fibrillation

When symptoms do occur, they often include a sensation of irregular or chaotic heartbeat, medically referred to as palpitations. In cases where the ventricular rate exceeds approximately 150 beats per minute, patients may begin to notice more pronounced signs such as shortness of breath, chest discomfort, and a rapid, irregular pulse.

What to Look For

One unique characteristic of AFib is the presence of a pulse deficit, where the pulse rate measured at the wrist is lower than the actual heart rate. This occurs because not all heartbeats are strong enough to produce a detectable pulse. Additionally, when listening to the heart with a stethoscope, medical professionals may observe varying intensities of the first heart sound.

Severe Complications to Be Aware Of

In more serious cases, atrial fibrillation can lead to significant health issues. These may include dizziness, lightheadedness, and even fainting due to reduced blood flow to the brain. Patients with underlying heart conditions may also develop heart failure, which can cause fatigue, swelling in the legs, and difficulty breathing during physical activity.

It's important to recognize these symptoms early and seek medical attention, as untreated AFib increases the risk of stroke and other cardiovascular complications. Understanding your body and being aware of any unusual changes in heart rhythm can make a big difference in managing this condition effectively.