Understanding heart palpitations: Causes, symptoms, and when to seek help

Written in association with: Dr Anoop Shetty
Published: | Updated: 17/10/2024
Edited by: Conor Lynch

Heart palpitations are sensations where you feel your heart beating unusually fast, fluttering, skipping a beat, or pounding hard. While they are often harmless and fleeting, they can sometimes indicate an underlying medical issue that requires attention. Understanding the causes, symptoms, and when to seek medical advice can help you manage this unsettling experience.

What are heart palpitations?

Heart palpitations occur when you become unusually aware of your heartbeat. These sensations can feel like your heart is racing, thumping, or skipping beats. You might notice them in your chest, throat, or neck. They can last for a few seconds or persist for minutes. Although palpitations can be alarming, they are typically not life-threatening on their own and can be caused by a variety of factors, ranging from lifestyle triggers to medical conditions.

 

Common causes of heart palpitations

Several factors can trigger heart palpitations. Stress and anxiety are among the most common causes, as the release of adrenaline during stressful situations can lead to a rapid or irregular heartbeat. Caffeine, alcohol, nicotine, and certain recreational drugs can also cause palpitations. Physical exertion, dehydration, or lack of sleep may contribute to irregular heartbeats as well.

 

Medical conditions, such as thyroid disorders (both hyperthyroidism and hypothyroidism), anaemia, and low blood sugar, can lead to heart palpitations. Sometimes, palpitations can also indicate an arrhythmia (abnormal heart rhythm) or other cardiovascular issues.

 

When to seek medical advice

While most heart palpitations are harmless, it is essential to see a healthcare provider if they are accompanied by other symptoms such as chest pain, shortness of breath, dizziness, or fainting, as these may indicate a more serious heart condition like arrhythmia, atrial fibrillation, or heart disease.

 

If palpitations start and stop suddenly and are sustained for more than a minute, they are more likely to be abnormal and potentially treatable by medication and curable by a procedure called ablation.

By Dr Anoop Shetty
Cardiology

Dr Anoop Shetty is a highly experienced consultant cardiologist and electrophysiologist who is based at The Cardiac Clinic, which is part of HCA Healthcare. He is also an honorary senior lecturer at King's College London. His main areas of expertise include arrhythmiadefibrillator implantationpalpitations, atrial fibrillation ablation and leadless pacing.

Dr Shetty, who qualified as a medical professional in 2000 after successfully completing an MBChB at the University of Manchester, possesses expertise in device implantation and cardiac ablation. His gained MRCP from the Royal College of Physicians in 2004 and completed his MD at King's College London in 2012. Dr Shetty gained certification by the International Board of Heart Rhythm Examiners (IBHRE) as a Certified Cardiac Device Specialist in 2013 and as a Physician Certified Electrophysiologist Specialist in 2014.

Dr Shetty is fully trained in all aspects of complex electrophysiology and complex devices and possesses extensive research experience, having published over 50 publications and one book chapter. He is an editorial board member of Europace and an invited reviewer for Circulation, Circulation: Arrhythmia and Electrophysiology, JACC Clinical Electrophysiology, The American Journal of Cardiology, Heart, PACE and BMJ Case Reports.

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