Atrial Fibrillation

Common Condition

The most common heart rhythm disorder, causing irregular and often rapid heartbeat that increases the risk of stroke, heart failure, and other complications.

Related specialists:Cardiologist

Symptoms

Heart palpitations or rapid, fluttering heartbeat
Irregular pulse
Fatigue and weakness
Shortness of breath
Dizziness or lightheadedness
Chest pain or discomfort
Reduced ability to exercise
Confusion
Fainting or near-fainting
Some people have no symptoms at all

Causes

1
High blood pressure
2
Heart valve disease
3
Coronary artery disease
4
Heart failure
5
Thyroid disorders
6
Obesity
7
Sleep apnea
8
Excessive alcohol consumption
9
Caffeine intake
10
Lung diseases

Treatments

Rate control medications (beta-blockers, calcium channel blockers)
Rhythm control medications (anti-arrhythmics)
Blood thinners (warfarin, NOACs) to prevent stroke
Electrical cardioversion
Catheter ablation
Maze procedure (surgical ablation)
Left atrial appendage closure
Pacemaker for certain cases
Lifestyle modifications
Stroke risk assessment (CHA2DS2-VASc score)
When to See a Doctor

Seek emergency care if you experience chest pain, severe shortness of breath, fainting, or signs of stroke (face drooping, arm weakness, speech difficulty). See your doctor if you notice irregular heartbeat or unexplained fatigue.

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About Atrial Fibrillation

Atrial Fibrillation: Understanding the Most Common Arrhythmia

Atrial fibrillation (AFib) is the most common type of abnormal heart rhythm, affecting millions worldwide and significantly increasing stroke risk.

What is Atrial Fibrillation?

In AFib, the electrical signals in the atria become chaotic. Instead of contracting in a coordinated manner, the atria quiver irregularly, causing the ventricles to beat irregularly and often too fast.

Why AFib is Dangerous

Stroke: AFib increases stroke risk five-fold because blood can pool and form clots.
Heart Failure: The rapid, irregular heartbeat can weaken the heart over time.
Reduced Quality of Life: Symptoms can significantly impact daily activities.

Treatment Approach

AFib treatment has three main goals:

  1. Rate Control: Slowing the heart rate to a normal range
  2. Rhythm Control: Restoring and maintaining normal rhythm
  3. Stroke Prevention: The most critical aspect—anticoagulants reduce stroke risk

Living with AFib

Many people with AFib lead full, active lives:

  • Take medications exactly as prescribed, especially blood thinners
  • Maintain healthy weight and exercise regularly
  • Limit alcohol and manage caffeine intake
  • Know the warning signs of stroke (FAST: Face drooping, Arm weakness, Speech difficulty, Time to call emergency)

"Kahit irregular ang tibok, hindi kailangan irregular ang buhay." (Even if the heartbeat is irregular, life doesn't have to be.)