How many people suffer from bradycardia

Apply for Admission M. Displaying 1 - 4 of 4 Records. Hiroshi Ashikaga, M. Ronald David Berger, M. Hugh Grosvenor Calkins, M. Sunil Kumar Sinha, M. Already a Patient? Traveling for Care? In some people, the heart can still pump blood efficiently with fewer beats per minute. For example, healthy young adults or endurance athletes can often have sinus bradycardia. This can happen to anyone, but is more common in older adults.

Sinus bradycardia can also occur along with sinus arrhythmia. Sinus arrhythmia is when the timing between heartbeats is irregular. For example, someone with sinus arrhythmia can have variation of the heartbeats when they inhale and exhale. Sinus bradycardia and sinus arrhythmia can commonly occur during sleep. Sinus bradycardia can be a sign of a healthy heart. But it can also be a sign of a failing electrical system.

Some possible complications from this include fainting , heart failure , or even sudden cardiac arrest. Sinus bradycardia happens when your sinus node generates a heartbeat less than 60 times in a minute. There are many possible factors that can cause this to occur. They can include:. However, if not enough blood is being pumped to the organs of your body, you may begin to experience symptoms, such as:.

To diagnose sinus bradycardia, your doctor will first do a physical exam. This can include things like listening to your heart and measuring your heart rate and blood pressure. An electrocardiogram ECG will be used to detect and characterize the bradycardia. Merck Manual. Updated July Association of asymptomatic bradycardia with incident cardiovascular disease and mortality: The multi-ethnic study of atherosclerosis MESA.

Incidence of and risk factors for sick sinus syndrome in the general population. J Am Coll Cardiol. American Heart Association. Bradycardia: slow heart rate. Reviewed September 30, Cleveland Clinic. Reviewed May 7, Antzelevitch C, Burashnikov A. Overview of basic mechanisms of cardiac arrhythmia. Cardiac Electrophysiology Clinics. Atrioventricular block. In: Fogoros RN. Electrophysiologic Testing. Sidhu S, Marine JE. Evaluating and managing bradycardia. Trends in Cardiovascular Medicine.

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I Accept Show Purposes. Table of Contents View All. Table of Contents. Intrinsic Sinus Node Disease In people with intrinsic sinus node disease, the heart rate can be inappropriately low. How the Heart's Electrical System Works. How Cardiac Arrhythmias Are Diagnosed. Arrhythmia Doctor Discussion Guide Get our printable guide for your next doctor's appointment to help you ask the right questions.

This triggers a contraction of the ventricles and produces a heartbeat. To continue reading this article, you must log in. Already a member? Login ». As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles.

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