Atrial fibrillation, often called AFib, is one of the most common heart rhythm disorders in adults. It happens when the upper chambers of the heart beat irregularly, which can cause the heart to feel fast, fluttering, or out of rhythm.
Some people feel clear symptoms, while others do not notice anything at all. Even when atrial fibrillation is silent, it can still increase the risk of stroke and other heart-related complications.
Common symptoms of atrial fibrillation
Symptoms can vary from person to person. Common symptoms include:
- Palpitations or a racing heartbeat
- Irregular heartbeat
- Shortness of breath
- Fatigue or decreased stamina
- Dizziness or lightheadedness
- Chest discomfort
- Feeling more tired than usual during normal activities
Why atrial fibrillation matters
The main concern with atrial fibrillation is that blood may not move normally through the upper chambers of the heart. In some patients, this can increase the risk of blood clots and stroke.
AFib can also contribute to worsening shortness of breath, reduced exercise tolerance, heart failure, and repeated hospital visits if it is not properly evaluated and treated.
How AFib is diagnosed
Diagnosis usually starts with a careful history, physical examination, and an electrocardiogram (ECG). If the rhythm is not captured during the office visit, your cardiologist may recommend a heart rhythm monitor.
Testing may include:
- Electrocardiogram (ECG)
- Holter monitor or longer heart rhythm monitor
- Echocardiogram to evaluate heart structure and valve function
- Blood tests when appropriate
- Stress testing in selected patients
Treatment options
Treatment depends on your symptoms, age, medical conditions, stroke risk, heart function, and personal preferences. There is no single treatment plan that fits every patient.
Stroke prevention
Many patients with AFib need a blood thinner to reduce the risk of stroke. This decision depends on your individual stroke risk and bleeding risk.
Heart rate control
Some medications help slow the heart rate so the heart does not beat too fast during atrial fibrillation.
Rhythm control
In selected patients, treatment may focus on restoring or maintaining normal rhythm. This may involve medications, cardioversion, or referral for catheter ablation.
Lifestyle and risk factor management
Managing blood pressure, sleep apnea, weight, alcohol intake, diabetes, and other risk factors may reduce AFib burden and improve long-term outcomes.
When should you see a cardiologist?
You should consider a cardiology evaluation if you have:
- New palpitations or irregular heartbeat
- Episodes of rapid heart rate
- Unexplained shortness of breath
- Fatigue that limits your usual activities
- Dizziness, near-fainting, or fainting
- A new diagnosis of atrial fibrillation
- Questions about blood thinners or ablation
About Dr. Nami Moradi
Dr. Nami Moradi is a board-certified cardiologist serving Orange County, including Laguna Woods, Anaheim, and Orange. He provides personalized care for atrial fibrillation, chest pain, coronary artery disease, stents, preventive cardiology, echocardiography, and stress testing.
Patients can schedule a cardiology consultation to review symptoms, test results, treatment options, or second opinions.
About Cardiovascular Consultants of Southern California
Cardiovascular Consultants of Southern California provides personalized cardiology care in Laguna Woods, Anaheim, and Orange, including evaluation and management of atrial fibrillation, palpitations, heart rhythm disorders, preventive cardiology, echocardiography, stress testing, and cardiovascular wellness.
Need an evaluation for atrial fibrillation?
Call or text Cardiovascular Consultants of Southern California to schedule an appointment.
Call or Text 949-461-2488This article is for educational purposes only and does not replace individualized medical advice, diagnosis, or treatment. If you are experiencing urgent symptoms, call 911 or seek emergency care.