Arrhythmias: Understanding Irregular Heartbeats

What Is an Arrhythmia?

An arrhythmia is any deviation from the heart's normal rhythm. Your heart normally beats 60-100 times per minute at rest in a regular pattern. Arrhythmias involve irregular timing, rate, or pattern.

Types of Arrhythmias

Tachycardia means too-fast heartbeat (over 100 beats per minute at rest).

Bradycardia means too-slow heartbeat (under 60 beats per minute at rest).

Atrial fibrillation is the most common pathologic arrhythmia, where the atria quiver irregularly. This increases stroke risk.

Atrial flutter involves rapid but regular atrial beats, often faster than the ventricles can respond.

Premature beats feel like skipped or extra beats. Usually benign, they're common and often unnoticed.

When to Be Concerned

Seek immediate medical attention if arrhythmia is accompanied by:

• Chest pain or pressure
• Shortness of breath
• Dizziness or fainting
• Severe weakness or fatigue
• Sudden onset with rapid heart rate

Benign Arrhythmias

Occasional palpitations triggered by caffeine, stress, or exercise are usually benign. Most people experience them occasionally without consequence.

Risk Factors for Problematic Arrhythmias

• Heart disease
• High blood pressure
• Thyroid disease
• Sleep apnea
• Chronic stress
• Excessive alcohol or caffeine
• Obesity

Diagnosis and Treatment

EKG or Holter monitor can identify arrhythmias. Treatment ranges from lifestyle modification (reducing caffeine, managing stress) to medications or procedures like ablation in serious cases.

Prevention Strategies

Maintaining healthy blood pressure, avoiding excessive caffeine, managing stress, treating sleep apnea, and preserving heart health through diet and exercise reduce arrhythmia risk.