North American Society of Pacing and Electrophysiology - Details about NASPE who is dedicated to the study and management of cardiac rhythm disorders. Includes find a specialist, a library, products and courses, scientific sessions, news and information about the heart.

American Heart Association - Brief description of arrhythmias.

St. Luke's-Roosevelt Hospital Center's Arrhythmia Service - QandAs, electrophysiology information, news, diagnostic procedures, therapeutic procedures and an explanation is presented.

Advice from Dr. Dave and Dr. Dee - An explanation of premature atrial contractions and premature ventricular contractions.

Journal of the Canadian Working Group for Cardiac Pacing/ Journal du Groupe de Travail Canadien po - For care givers, patients, and industrial sponsors to share information regarding cardiac pacemakers and defibrillators.

Continuing Education: New Trends in Arrhythmia Management - A list of the program objectives, web cast, support and evaluation.

Health Factsheets From BUPA - Explaining the causes, symptoms and treatment of arrhythmia, available for down loading in Adobe acrobat format.

King Faisal Specialist Hospital and Research Centre - Explanation, diagnosing and treatment of arrhythmias.

Mayo Clinic Electrophysiology Laboratory - A look at the heart and its rhythms, diagnosing, electrophysiologist, bradycardias, tachycardias, supraventricular tachycardias, atrial fibrillation and vetricular tachyarrhythmias.

Arrhythmia Online - A Canadian web site where physicians can share information on the diagnosis and treatment of this disorder. Registration required.

Information from Your Family Doctor - A discussion on arrhythmias regarding what it is, symptoms, causes, how serious it is, how do you know if you have them, types and treatment.

Einthoven - Continuing education and advances in cardiac arrhythmias. Includes news, key papers, case histories and manuals.

Internet Medical Education, Inc - Presents in-depth information on bradycardias and tachycardias. Suggestions as to what to do, drug therapy, ablation and other topics are covered.

Cardiovascular Physiology Web Resource - Richard E. Klabunde, Ph.D. looks at arrhythmias from a medical point of view, discussing altered impulse formation and altered impulse conduction.

Acme Image.com - Resources for cardiac electrophysiology, arrhythmias, AVNRT, accessory pathways, ablation, bradycardia, tachycardia, atrial fibrillation, cardioversion, defibrillation and deart disease.

Mamas Health - Information about an arrhythmia, the different types, diagnostic tests and treatment.

Temple University Hospital Health Information-Palpatations - Provides information on symptoms, causes, diagnosis, and treatment.

HeartPoint - In-depth detail about this disorder including symptoms, what types, causes, what patient can do, as well as pacemakers, atrial fibrillaion and ventricular arrhythmias.

MedicineNet.com - Presents a detailed discussion on this disorder, giving complete definition, what a normal heart beat is, symptoms, causes, as well as all the different types of arrhythmias.

Inland Cardiology Associates - Explanation of the heart and its electrical activity, symptoms and types of bradycardia and tachycardia.

Arrhythmia Technologies Institute - Information about the institute as well as the curriculum.

Arrhythmias - A lot of content about this disorder including a discussion about all the different types.

The University of Texas Southwestern Medical Center at Dallas - Guidelines for treating arrhythmias in women during pregnancy.

National Heart, Lung and Blood Institute - In-depth discussions on this disorder including what it is, causes, symptoms, types, what happens in the heart during arrhythmias, treatment and many other related issues .

Madrid Arrhythmia Meeting Project - Notice for upcoming meeting in Madrid. Some articles and history of cardiac arrhythmias.

Life Spa - An Ayurvedic look at arrhythmias. In-depth discussion ending in looking at the treatment, herbs, diet, oil massages and numerous other topics.

US Food and Drug Administration - An In-depth discussion on ventricular arrhythmias and new drugs and devices in curbing deaths from this disorder.

SleepTight - Explanation of arrhythmias.

Hospital Practice - Care and management of atrial fibrillation, atrial flutter, supraventricular tachycardia, ventricular arrhythmia and a look at syncope.

Chain of Survival - An explanation about arrhythmias, the types and treatment.

Indiana University Medical Center - A look at all the types Atrial arrhythmias with detailed look at testing, treatment and curable causes of each.

Family Practice Notebook: Arrhythmias in Athletes - Non-cardiac causes, types, worrisome symptoms and worrisome signs (red flags) are some topics discussed.

Palpatations - Describes terms, doctor's explanations, and what exactly a palpatation is.

Lethal Dysrhythmias - Offers in depth information on premature ventricular complexes (PVCs), ventricular tachycardia, ventricular flutter, ventricular fibrillation, asystole/ventricular standstill, sinus arrest and pulseless electrical activity (PEA).

Texas Arrhythmia Institute - Very detailed information about all the types of arrhythmias. Premature beats, tachycardias and bradycardias.

Heart Information Network - Provides information on how the heart beats, what it is and when arrhythmias occur, types, symptoms, diagnosis and tests, treatment and patient education.

The Atlanta Cardiology Group - A list of arrhythmia types originating in both the Atria and the Ventricles. A brief description with each type.

Greenwich Hospital - Looks at arrhythmias, non-serious and serious conditions, symptoms, contributing factors, diagnoses and treatment.

Alternative Treatments - Explained in lay mans terms what arrhythmias are, with suggested herbs and vitamins.

International Health News Database - Summaries of the latest research concerning fish oils and arrhythmias.

The Cleveland Clinic Foundation - Discussion on how to find a doctor and hospital for treatment. Article on arrhythmias and their diagnosis and treatment.

Doctors Who's Who - An in-depth look at an arrhythmia with explanation, causes, symptoms, types, treatment and numerous other topics.

Cardionetics - A look at sinus rhythms, blocks, delays, premature beats, supraventricular and ventricular arrhythmias.

Vanderbilt Medical Center - Discussion of four types of arrhythmias and brief look at management in children.

University of Minnesota Department of Medicine - Details about the center and its mission. Also topics such as heart rhythm disturbances and who gets heart rhythm problems.

Cardiology Associates - An in-depth look at arrhythmias, discussing symptoms, causes, how serious and common they are and research among many other topics.

London Health Sciences Centre - A list of doctors who provide arrhythmia services, locations and phone numbers. General information as to who may seek their help, diagnostic tools, therapeutic services and training program.

Health South - Talks about causes, incidence and risk factors, types, symptoms, treatment and prevention for arrhythmias.

International Health News - A comprehensive, fully referenced review of the causes, prevention and treatment options for lone atrial fibrillation. A stress-related disorder that is becoming increasingly common.

Cleveland Clinic Heart Center - Details about Atrial fibrillation, an abnormal heart rhythm. Includes the causes, diagnosis and treatment.

Sharp Health Cardiac Care: Arrhythmia Evaluation and Treatment - An article on electrophysiology, ablation, medications, pacemaker and implantable cardioverter pacer/defibrillator.

American Heart Association - An arrhythmia is an irregular heartbeat. Find out more about the symptoms and treatments of this condition. For patients and professionals.

Doctors' Medical Library - Discussion about arrhythmias including nutritional medicine, chelation therapy and homeopathy.

OnHealth with WebMD - Detailed look at an arrhythmia, the causes, and diagnosing. The different types and treatments available.

Vfair.com - Lots of information about cardiac arrhythmias as well as a brief discussion on all the different types.

Yahoo Health - A look at arrhythmias discussing causes, incidence, risk factors, treatment, symptoms and other topics.

Wolff-Parkinson-White Syndrome - American Heart Association looks at this disease along with the symptoms and treatment.

Guidelines for Implantation of Cardiac Pacemakers and Antiarrhythmia Devices - A Report of the American College of Cardiology and American Heart Association Task Force on Practice Guidelines. Committee on Pacemaker Implantation.

Paroxysmal Atrial Tachycardia: iafrica.com - A look at what this is, the causes, symptoms and treatment. Some self help tips to try while having an attack.

Wolff-Parkinson White Syndrome: iafrica.com - A quite extensive look at this disease and how the heart works.