Abnormal Heart Rhythm / Arrhythmia

Abnormal Heart Rhythm / Arrhythmia - Causes and Risk Factors

What causes abnormal heart rhythm / arrhythmia?

Arrhythmias or abnormal heart rhythm occur when there is a short-circuit in the electrical impulses controlling your heartbeat. These electrical impulses are what will cause your heart to beat too rapidly, too slowly or irregularly.

There are different causes for cardiac arrhythmias, including intrinsic heart problems, endocrinological and metabolic causes. Some common triggers are exercise, stress, caffeine, alcohol, appetite suppressant and decongestants in cough and cold medicines.

What are the risk factors for abnormal heart rhythm / arrhythmia?

Other risk factors of arrhythmias include:

High blood pressure
Ageing
Coronary artery disease, or other types of cardiovascular diseases
Congenital heart disease
Obstructive sleep apnoea

Cardiology,

Electrophysiology ＆ Pacing,

Ambulatory ECG - Holter monitoring,

Atrial Fibrillation,

Bradycardia,

Catheter Ablation,

Coronary Artery Disease / Coronary Heart Disease,

Electrical Cardioversion,

Electrocardiogram (ECG),

Electrophysiological Study (EPS),

Implantable Cardioverter Defibrillator (ICD),

Maze Surgery,

Pacemaker,

Tachycardia

Article contributed by Department of Cardiology, National Heart Centre Singapore; NHCS Cardiology @ SKH, Sengkang General Hospital

The information provided is not intended as medical advice. Terms of use. Information provided by SingHealth

Clin Assoc Prof Ching Chi Keong

Senior Consultant

MBBS, MRCP(UK), FAMS (Cardiology), FHRS

Clinical Interests: Electrophysiology ＆ Pacing

Clin Asst Prof Ho Kah Leng

Senior Consultant

MBBS (NSW), MRCP(UK)

Clinical Interests: Electrophysiology ＆ Pacing

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