Heart Palpitations – Causes, Symptoms and Treatment
Heart palpitations are the uncomfortable sensation of a fast, pounding, or irregular heartbeat. They can be harmless or indicate an underlying heart condition.
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Heart palpitations are the uncomfortable sensation of a fast, pounding, or irregular heartbeat. They can be harmless or indicate an underlying heart condition.
What Are Heart Palpitations?
Heart palpitations describe the conscious, often unpleasant awareness of one's own heartbeat. The heart may feel like it is racing, fluttering, pounding, or skipping beats. Medically, a resting heart rate above 100 beats per minute is classified as tachycardia. Palpitations can occur in a normal or elevated heart rate and are typically noticed during rest. While they are frequently harmless and triggered by everyday factors, they can also signal a medical condition that requires evaluation and treatment.
Causes
Heart palpitations have a wide range of potential causes, from benign lifestyle factors to serious cardiac or systemic conditions.
Common Non-Medical Causes
- Physical exercise or exertion
- Stress, anxiety, or emotional excitement
- Caffeine, alcohol, or tobacco consumption
- Sleep deprivation or fatigue
- Certain medications (e.g., bronchodilators, thyroid hormones, decongestants)
- Fever or acute infections
- Dehydration
Medical Causes
- Cardiac arrhythmias such as atrial fibrillation, atrial flutter, or supraventricular tachycardia (SVT)
- Hyperthyroidism (overactive thyroid gland)
- Anemia (low red blood cell count)
- Low blood pressure (hypotension)
- Heart conditions such as heart failure or valvular heart disease
- Electrolyte imbalances (e.g., low potassium or magnesium)
- Panic attacks and anxiety disorders
Symptoms
Palpitations may occur alone or alongside other symptoms that can help identify the underlying cause:
- Racing, fluttering, or irregular heartbeat
- Sensation of skipped or extra heartbeats
- Dizziness or lightheadedness
- Shortness of breath
- Chest pain or tightness
- Feeling of anxiety or nervousness
- Fainting or temporary loss of consciousness (in severe cases)
Diagnosis
A thorough evaluation is important to determine the cause of heart palpitations. Diagnostic steps may include:
- Medical history: Questions about frequency, duration, triggers, and associated symptoms
- Electrocardiogram (ECG): Records the electrical activity of the heart at rest
- Holter monitor (ambulatory ECG): Continuous heart rhythm monitoring over 24–48 hours during daily activities
- Echocardiography: Ultrasound imaging of the heart to assess structure and function
- Blood tests: Evaluation of thyroid function, blood count, electrolytes, and other parameters
- Exercise stress test: Assessment of heart rhythm during physical exertion
Treatment
Treatment depends on the underlying cause of the palpitations.
Lifestyle Modifications
- Reducing or eliminating caffeine, alcohol, and tobacco
- Managing stress through relaxation techniques, yoga, or meditation
- Ensuring adequate sleep and hydration
- Avoiding known personal triggers
Medical Treatment
- Beta-blockers: Slow the heart rate and are commonly prescribed for tachycardia
- Antiarrhythmic drugs: Medications that help restore or maintain a normal heart rhythm
- Treating the underlying condition, such as thyroid medication for hyperthyroidism
Interventional Procedures
- Cardioversion: Electrical or pharmacological restoration of normal heart rhythm
- Catheter ablation: A minimally invasive procedure to eliminate abnormal electrical pathways in the heart
- Pacemaker or implantable defibrillator (ICD): Used in cases of severe or life-threatening arrhythmias
When to See a Doctor
Occasional, brief palpitations without other symptoms are usually not a cause for concern. However, medical attention should be sought promptly if palpitations are accompanied by:
- Chest pain or pressure
- Dizziness or fainting
- Prolonged or frequently recurring episodes
- Onset at rest without an identifiable trigger
- A known history of heart disease
References
- Zipes DP, Jalife J - Cardiac Electrophysiology: From Cell to Bedside. 7th edition, Elsevier, 2018.
- Camm AJ et al. - 2020 ESC Guidelines for the diagnosis and management of atrial fibrillation. European Heart Journal, 2021; 42(5): 373–498.
- American Heart Association - Palpitations: Symptoms, Diagnosis and Monitoring. Dallas, 2023. Available at: https://www.heart.org
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Related search terms: Heart Palpitations + Heart Palpitation + Palpitations + Rapid Heartbeat