We see atrial fibrillation as an irregular, often rapid heartbeat that people describe as palpitations, fluttering, or skipped beats. Other common complaints are shortness of breath, unusual fatigue, lightheadedness and occasional chest discomfort. In many cases symptoms are intermittent, and some people notice no symptoms at all.
What is atrial fibrillation and why it matters
Atrial fibrillation, often called AFib, is an abnormal rhythm that starts in the heart's upper chambers. When the atria fire chaotically, the heart beats irregularly and sometimes fast. That irregularity raises the risk of stroke and can reduce quality of life.
Locally, AFib matters because our patients on the Upper West Side and across Manhattan are generally active, and many juggle work and caregiving. Early detection and tailored prevention reduce the chance of stroke, limit interruptions to daily life, and let us preserve long term heart health.
How atrial fibrillation usually feels
Below are the symptoms we most commonly hear from adults who come to our practice.
- Palpitations. A fast, irregular, or pounding heartbeat, often described as fluttering or skipped beats.
- Shortness of breath. Difficulty catching your breath during activity or at rest.
- Fatigue. Unusual tiredness that limits exercise or daily tasks.
- Lightheadedness or near fainting. Sensations of dizziness or feeling faint.
- Chest discomfort. Pressure or tightness that is concerning and needs prompt assessment.
- No symptoms. Some people have silent AFib discovered on routine exam or monitoring.
Key concepts to understand about symptoms
- Intermittent versus persistent. AFib can come and go or persist continuously. Intermittent episodes may be brief and unpredictable.
- Symptom severity does not equal risk. Mild or absent symptoms do not mean low stroke risk. Risk is based on age, blood pressure, diabetes, heart disease and other factors.
- Triggers. Alcohol, caffeine, poor sleep, acute illness and stress can trigger episodes in susceptible people.
- Overlap with other conditions. Anxiety, thyroid disease, and some medications can cause similar sensations, so careful evaluation is necessary.
How we evaluate suspected AFib at our center
When someone reports symptoms suggesting AFib, we follow a stepwise evaluation to confirm the rhythm, find underlying causes, and estimate stroke risk.
- Initial history and exam. We review symptoms, medical history, medications and risk factors such as hypertension, diabetes and prior heart disease.
- 12 lead EKG. A standard electrocardiogram records the heart's rhythm and is the fastest way to confirm AFib when the rhythm is present.
- Ambulatory monitoring. For intermittent symptoms we use Holter monitors or event monitors to capture episodes over days to weeks.
- Imaging. An echocardiogram assesses heart structure, valve disease and left atrial size, which influence management.
- Blood tests and risk scoring. Thyroid function, electrolytes and other labs are checked. We calculate stroke risk using established scores and discuss anticoagulation options when appropriate.
- Specialized testing. When needed, we use more advanced monitoring or cardiac imaging to guide treatment planning.
We combine testing with a personalized plan for lifestyle changes, risk factor control and, when appropriate, medical therapy or referral to rhythm specialists.
When symptoms need urgent evaluation
Seek emergency care if you have
- Severe, crushing chest pain.
- Fainting or sudden collapse.
- Sudden weakness, numbness, trouble speaking or drooping face, which may indicate stroke.
- Severe shortness of breath that does not improve with rest.
For other symptoms, prompt same day evaluation with a cardiac provider is often appropriate, especially if you have risk factors such as hypertension, diabetes, or prior stroke.
Common questions and what they mean
- Can AFib feel like anxiety? Yes. Fast or irregular heartbeats can produce anxiety. We look for heart rhythm causes before attributing symptoms to anxiety alone.
- Does AFib always cause palpitations? No. A significant number of people have minimal or no palpitations and may first learn they have AFib after a stroke or on routine testing.
- Will AFib go away on its own? It can stop without treatment, especially if triggered by a reversible cause. However, even brief episodes can affect stroke risk assessment.
Comparing AFib symptoms with other causes
| Symptom pattern | Atrial fibrillation | Anxiety or panic | Premature ventricular contractions |
|---|---|---|---|
| Typical description | Irregular, often rapid, fluttering or skipped beats | Racing heart with intense fear, sweating, short duration | Single strong thump or skipped beat, usually regular otherwise |
| Duration | Seconds to hours or persistent | Minutes to an hour | Brief isolated events or runs |
| Associated signs | Shortness of breath, fatigue, lightheadedness | Panic, hyperventilation, trembling | Often no other symptoms |
Pro tip: If your symptoms are intermittent, wearing an ambulatory monitor improves the chance of capturing an episode and getting a definitive diagnosis.
Related services we offer
We approach atrial fibrillation as part of prevention and long term heart health. Our services include comprehensive risk assessment and tailored treatment plans that may involve lifestyle changes, medical therapy and coordination with other specialists.
- Preventive Cardiology for risk reduction and long term follow up.
- Atrial Fibrillation Treatment options and coordination with electrophysiology when needed.
- Cholesterol Management and Hypertension Management to address common contributing risks.
Related locations and resources
We provide care to adults across Manhattan, the Bronx, Queens, Brooklyn, Westchester, Long Island, New Jersey and the greater New York metropolitan area. For a list of where we serve, see our locations page.
For a focused discussion of symptoms, testing and next steps, you can also read our detailed topic page on Atrial Fibrillation Symptoms.
Helpful external resources
The National Heart, Lung, and Blood Institute has an accessible overview of atrial fibrillation that explains causes and testing in nontechnical terms, and the Centers for Disease Control and Prevention provides information on stroke risk and prevention strategies.
These resources can help you understand the condition before an office visit, and they reflect widely accepted clinical guidance.
Key takeaway
Atrial fibrillation most commonly produces palpitations, shortness of breath, fatigue and lightheadedness, but symptoms vary and some people have no symptoms. Early evaluation helps us confirm the rhythm, measure stroke risk and build a prevention plan that fits your life in the Upper West Side and across New York.
Frequently asked questions
What causes atrial fibrillation?
AFib can be caused by high blood pressure, coronary artery disease, valvular problems, sleep apnea, thyroid disease, alcohol and aging. Often several factors combine to create susceptibility.
Can lifestyle changes reduce AFib episodes?
Yes. Weight loss, limiting alcohol, improving sleep, controlling blood pressure and treating sleep apnea all reduce episode frequency and improve outcomes when combined with medical care.
How is stroke risk assessed in AFib?
Stroke risk is assessed with validated clinical scores that consider age, prior stroke, hypertension, diabetes, heart failure and other factors. Anticoagulation decisions balance stroke reduction against bleeding risk and are individualized.
Will I always need blood thinners for AFib?
Not always. Need for anticoagulation depends on your calculated stroke risk. We discuss benefits and risks and tailor recommendations to your overall health and preferences.
How quickly should I see a cardiologist for palpitations?
If palpitations are new, recurrent, prolonged or associated with lightheadedness, chest discomfort or shortness of breath, prompt evaluation is appropriate. For simple, brief episodes without other concerns, scheduling an outpatient visit within a few weeks may be reasonable.
Learn more and find us locally
Check our Google Business Profile to read patient reviews and get directions. For detailed reading on related subjects, visit our topics index or explore our services directory to see how we evaluate and manage atrial fibrillation.