21. What Is Arrythmia? A Definition of arrhythmia and jump off site for further information about specific arrhythmias. The Cardiac Rhythm. An arrhythmia http://www.arrhythmia.org/general/whatis/

The Cardiac Rhythm An arrhythmia is any deviation from or disturbance of the normal heart rhythm. The basic rhythm of the heart is a tightly regulated phenomenon designed to insure maximal efficiency and optimal performance. It is a dynamic phenomenon that changes according to the metabolic needs of the body. The cardiac rhythm involves several different microscopic and macroscopic structures within the normal heart. MORE INFO ABOUT CARDIAC RHYTHMS: Normal Atrial Tachycardia Atrial Fibrillation/Flutter AV Nodal Reentry Tachycardia ... Ventricular Tachycardia The Sino-Atrial Node The heart's normal or intrinsic pacemaker is called the sino-atrial node. It is located in the upper right chamber (right atrium). A signal or impulse is emitted to trigger the heart beat. The normal heart beat is 60-100 beats per minute. At times the heart may be slower, such as during sleep, or faster as during activity or stress. This impulse travels across the upper chambers of the heart. However, in order to trigger the pumping or lower chambers (the ventricles) the impulse must cross the specialized electrical (conduction) system. This connection between the upper and lower chambers of the heart is in a central area called the septum. Here a series of specialized tissues take the impulse from the top chamber, slow its progression down a bit, and then pass it on to specialized fibers that transmit the impulse across the pumping chambers to signal the muscles within these chambers to contract and pump. With the next heart beat, the process starts again.

22. CARE Articles require a pdf reader but provide information about symptoms and treatment experiences. http://www.longqt.org/

C.A.R.E. Foundation, Inc. 2082 Michelson Drive Suite 301 Irvine, CA 92612 care@longqt.org

23. CNN.com - Procedure Could Pinpoint Source Of Arrhythmia - June 29, 2001 CNN http://cnn.com/2001/HEALTH/conditions/06/29/cheney.icd/index.html

MAIN PAGE WORLD U.S. WEATHER ... ABOUT US CNN TV what's on show transcripts CNN Headline News CNN International ... askCNN EDITIONS CNN.com Asia CNN.com Europe set your edition Languages Time, Inc. Time.com People Fortune EW Procedure could pinpoint source of arrhythmia Vice President Cheney announced that he will undergo tests over the weekend for irregular heartbeat (CNN) The type of diagnostic procedure vice president Dick Cheney is to undergo Saturday, an electrophysiology study, is a common one used to determine the cause of arrhythmia, or irregular heartbeat. With the patient under local anesthetic, doctors run a catheter from the groin to the heart. The doctor uses the catheter to record the heart's electrical activity and to stimulate the type of arrhythmia that previously has been recorded. The procedure is relatively safe. According to statistics from the University of Michigan, the chance of an EPS causing a heart attack, stroke, bleeding or clotting is less than one percent. Fatal complications occur in fewer than one of every 5,000 patients. Because the patient is typically awake during the procedure, the doctor asks for a description of symptoms when the arrhythmia occurs. This description, along with the electrical recordings, helps determine how severe the irregularity is and what kind of treatment is needed.

24. Arrhythmia A Problem With Your Heartbeat Familydoctor.org arrhythmia A Problem With Your Heartbeat. What is an arrhythmia? An arrhythmia is a change in the rhythm of your heartbeat. What causes an arrhythmia? http://familydoctor.org/x1943.xml

Advanced Search familydoctor.org Home Conditions A to Z Arrhythmia What is an arrhythmia? What causes an arrhythmia? Is an arrhythmia serious? How do I know if I have an arrhythmia? ... What's the treatment? Arrhythmia: A Problem With Your Heartbeat Printer-friendly version Email this article What is an arrhythmia? An arrhythmia is a change in the rhythm of your heartbeat. When the heart beats too fast, it's called tachycardia. When it beats too slow, it's called bradycardia. An arrhythmia can also mean that your heart beats irregularly (skips a beat or has an extra beat). At some time or another, most people have felt their heart race or skip a beat. These occasional changes can be brought on by strong emotions or exercise. They usually are not a cause for alarm. Arrhythmias that occur more often or cause symptoms (see the box below) may be more serious and need to be discussed with your doctor. Return to top What causes an arrhythmia? What are the symptoms of arrhythmia? Call your doctor if you have any of these symptoms, especially if you have heart disease or have had a heart attack. Palpitations or rapid thumping in your chest Feeling tired or light-headed Passing out Shortness of breath Chest pain The heart has 4 chambers. The walls of the heart contract to push blood through the chambers. The contractions are controlled by an electrical signal that begins in the heart's natural "pacemaker" (called the sinoatrial node). The rate of the contractions is influenced by nerve impulses and hormones in the blood. A problem in any of these can cause an arrhythmia.

25. CNN - Study: Heart-burning Operation Effective For Correcting Arrhythmia - Janua CNN http://www.cnn.com/HEALTH/9901/18/heart.ablation/index.html

MAIN PAGE WORLD ASIANOW U.S. ... news quiz CNN WEB SITES: TIME INC. SITES: Go To ... Time.com People Money Fortune EW MORE SERVICES: video on demand video archive audio on demand news email services ... pagenet DISCUSSION: message boards chat feedback SITE GUIDES: help contents search FASTER ACCESS: europe japan WEB SERVICES: Study: Heart-burning operation effective for correcting arrhythmia In this story: More than 1,000 patients studied 'A very effective alternative' Related stories and sites January 18, 1999 Web posted at: 9:58 p.m. EST (0258 GMT) DALLAS (CNN) A treatment that burns heart tissue to correct irregular heart rhythms almost always succeeds in preventing potentially dangerous arrhythmias and carries little risk, according to the largest medical study ever on the procedure. Researchers say the findings mean doctors should consider radiofrequency catheter ablation over drugs when treating patients with certain irregular heart rhythms, including a rapid heartbeat. "This procedure has clearly moved into a front-line therapy of choice," said Dr. Eric Prystowsky of the Indiana Heart Institute in Indianapolis, one of the medical investigators. The findings will be published in Tuesday's issue of Circulation, a journal of the American Heart Association.

26. EMedicine - Hypertensive Heart Disease : Article By Kamran Riaz, MD Cardiologist offers a clinical report on common heart conditions caused by elevated blood pressure. Learn about coronary artery disease, cardiac arrhythmia, atrial fibrillation and their link to this disorder. http://www.emedicine.com/med/topic3432.htm

(advertisement) Home Specialties Resource Centers CME ... Patient Education Articles Images CME Patient Education Advanced Search Consumer Health Link to this site Back to: eMedicine Specialties Medicine, Ob/Gyn, Psychiatry, and Surgery Cardiology Hypertensive Heart Disease Last Updated: September 23, 2003 Rate this Article Email to a Colleague Synonyms and related keywords: left ventricular hypertrophy, LVH, congestive heart failure, CHF, hypertension, high blood pressure, hyperpiesis, hyperpiesia, angina, myocardial infarction, MI, heart attack AUTHOR INFORMATION Section 1 of 11 Author Information Introduction Clinical Differentials ... Bibliography Author: Kamran Riaz, MD , Fellow, Instructor, Department of Internal Medicine, Section of Cardiology, University of Missouri at Kansas City Coauthor(s): Alan D Forker, MD , Program Director of Cardiovascular Fellowship, Professor of Medicine, Department of Internal Medicine, University of Missouri at Kansas City School of Medicine; Aqeel Ahmed, MD

27. Arrhythmia Online arrhythmia Online is a Canadian website where physicians can share information on the diagnosis and treatment of arrhythmia. Username http://www.arrhythmiaonline.com/intro.asp

Username Password Not a registered member? Register Here Forgot your password? Arrhythmia Online is a bronze Summit Award winner! Having difficulties? Please contact the Site Administrator This website is supported by an unrestricted educational grant from Wyeth-Ayerst Canada Inc. Committed to Cardiology and Arrhythmia Education. Website Design and Development by Dymaxium Inc. Legal Information

28. UPHS Health Care: PENN Cardiac Care Specialists in cardiology and cardiac surgery treat all aspects of heart health, from arrhythmias and cholesterol to transplant and bypass surgery. Locations throughout Philadelphia, Pennsylvania region. http://pennhealth.com/cardiac

About PENN Cardiac Care Locations Physician Profiles Research ... Glossary PENN Cardiac Care specialists utilize the latest technology available to pinpoint and treat all types of heart problems from the most common to the most complex. For more information about services offered at each of our locations, click on one of the links below. PENN Cardiac Care is proud to be the presenting sponsor of the American Heart Association's Philadelphia Go Red for Women Luncheon to raise awareness about America's #1 killer of women. Pennsylvania Hospital Phoenixville Hospital University of Pennsylvania Medical Center Hospital of the University of Pennsylvania Presbyterian Suburban practices throughout the Delaware Valley

29. Biomedical Systems Products include ECGs, EKGs Holters, arrhythmia monitoring, spirometry, PFTs, perinatal monitoring, centralized data acquisition, and clinical pharmaceutical research services. http://www.biomedsys.com/

We combine innovation, technology and the best people to provide the highest-quality diagnostic health services and build long-lasting client relationships.

30. Welcome To Cardiovascular Clinics, PC Provides Electrophysiology and arrhythmia consultations, pacemaker/defibrillator implantation and followup. http://www.cardioclinics.com

sponsor Offices Merrillville Gary Munster Knox ... East Chicago Cardiovascular Clinics, P.C. (CVC) was formed in 1998 by Doctors Vijay Dave, Harish Shah, Thach Nguyen and Vijay Shah in the practice of Cardiovascular Medicine. They were joined by doctors in January 2002 and Ionut A. Oravitan in July 2003 By providing a combined experience of 67 years and the newest and latest thinking delivery of Cardiovascular Medicine by its physician members, Cardiovascular Clinics endeavors to provide a blend of experience and current practices to its patients. The physicians of CVC are all very well qualified, respected and enjoy positions of respect in the medical community of Northwest Indiana. At CVC , we are able to provide a full range of comprehensive outpatient cardiovascular services at the main office in Merrillville. These services include complete Non-invasive Cardiovascular Ultrasound, Cardiac Nuclear Medicine evaluation and specialized clinics for Congestive Heart Failure, Pacemaker evaluation and Cholesterol and Lipid Disorder.

31. Arrhythmia Center - HeartCenterOnline For Patients American Heart Association member edited encyclopedia on arrhythmia. The most comprehensive resource dedicated The arrhythmia Center. http://www.heartcenteronline.com/myheartdr/home/splash1.cfm?sp_id=14&T_Id=20

32. Arrhythmia Online A Canadian web site where physicians can share information on the diagnosis and treatment of this disorder. Registration required. http://www.arrhythmia-online.com/login.asp

Username Password Not a registered user? Register Here Forgot your password? Arrhythmia Online is a bronze Summit Award winner! Having difficulties? Please contact the Site Administrator This website is supported by an unrestricted educational grant from Wyeth-Ayerst Canada Inc. Committed to Cardiology and Arrhythmia Education. Website Design and Development by Dymaxium Inc. Legal Information

33. Arrhythmia Explanation, diagnosing and treatment of arrhythmias. http://www.kfshrc.edu.sa/cardiovascular/html/arrhythmia.html

KFSHRC Home Cardiovascular Diseases Department What is an Arrhythmia? How to Diagnose Arrhythmias ... How to Treat Arrhythmias What is an Arrhythmia? How to Diagnose Arrhythmias: EKG: Electrophysiology Study: How to Treat Arrhythmias: Arrhythmias may not require treatment if they are infrequent and associated with very little symptoms. Sometimes, the symptoms may be significantly improved by avoiding things which precipitate arrhythmias such as excessive use of caffeine. The treatment of underlying heart disease may also result in significant improvement in the occurrence of arrhythmia. When the arrhythmia is not correctable by these measures and requires specific treatment, various options are available. Antiarrhythmic Drugs: These drugs can reduce the occurrence of arrhythmia and/or decrease the severity. However, the patient has to take the medication on a lifelong basis. Further, the drugs may cause various side effects and rarely even aggravate the arrhythmia. Therefore, close monitoring and follow-up by the physician is necessary. The drugs only prevent the arrhythmia and do not result in permanent cure. If available, it is preferable to choose a mode of therapy which can achieve permanent cure without a significant risk (see below). Radiofrequency Catheter Ablation: Many types of abnormal, fast heart rhythm disturbances (tachycardia) can be permanently cured by this new non-surgical approach. Catheters (long cables) are introduced into the heart through the blood vessels and the focus of arrhythmia is identified by recording the electrical activity from inside the heart. A specialized computerized recording and analysis system is used for this purpose. Once the arrhythmia focus is identified, radiofrequency energy (modified high-frequency electrical current) is passed through the catheter to that area. This causes heating of tissue in that area and permanently destroys the tiny bundles of heart muscle responsible for the arrhythmia. The permanent cure rate is above 95% with a very low rate of recurrence (1-2%).

34. ARTHRT: Arrhythmia Research Technology Viewing this page requires a browser capable of displaying frames. ARTHRT arrhythmia Research Technology. http://www.arthrt.com/

Viewing this page requires a browser capable of displaying frames. ARTHRT: Arrhythmia Research Technology

35. Arrhythmia Technologies Institute Information about the institute as well as the curriculum. http://www.arrhythmiatech.com/history.htm

36. SADS Welcome to the Australian information site on Sudden arrhythmia Death Syndrome. Your browser needs to support frames to view this site. http://www.sads.org.au/

Welcome to the Australian information site on Sudden Arrhythmia Death Syndrome. Your browser needs to support frames to view this site. This site provides information regarding Long QT Syndrome (LQTS), research into LQTS, and offers assistance to families and friends of those affected by LQTS and other arrhythmia disorders. medical, SADS, Sensitive Hearts Support Group, long QT syndrome, LQTS, heart disorder, help, heart foundation, cardiology, educational, research, support

37. Angioplasty Noncardiac causes, types, worrisome symptoms and worrisome signs (red flags) are some topics discussed. http://www.fpnotebook.com/CV257.htm

Home About Links Index ... Editor's Choice document.write(code); Advertisement Cardiovascular Medicine Radiology Coronary Artery Disease ... MR Angiogram in Coronary Artery Disease Angioplasty Congestive Heart Failure Echocardiogram in Congestive Heart Failure Nuclear Ventriculogram Vessel ... Transesophageal Ultrasonography Angioplasty Percutaneous Coronary Intervention PTCA Book Home Page Cardiovascular Medicine Dentistry Dermatology Emergency Medicine Endocrinology Gastroenterology General Medicine Geriatric Medicine Gynecology Hematology and Oncology HIV Infectious Disease Jokes Laboratory Neonatology Nephrology Neurology Obstetrics Ophthalmology Orthopedics Otolaryngology Pediatrics Pharmacology Prevention Psychiatry Pulmonology Radiology Rheumatology Sports Medicine Surgery Urology Chapter Cardiovascular Medicine Index Arrhythmia Coronary Artery Disease Congestive Heart Failure EKG Endocrinology Examination Ophthalmology Hypertension Infectious Disease Laboratory General Hyperlipidemia Pulmonology Myocardium Neurology Neonatology Obstetrics Pediatrics Pericardium Pharmacology Prevention Procedure Radiology Sports Medicine Surgery Symptom Evaluation Valvular Disease Vessel Page Radiology Index CAD Angiography CAD Echocardiogram MI CAD MRA CAD PTCA CHF Echocardiogram CHF MUGA Vessel Angiogram Aorta Vessel Echocardiogram Transesophageal Indications Cardiac Ischemia Myocardial Infarction Efficacy Initial: 95% effective in coronary ischemia Angioplasty without stent: 35% re-stenosis at 6 months Angioplasty with stenting: 17% re-stenosis at one year Angioplasty with stenting and radiotherapy

38. WARP RECORDS | BLEEP SELECTED RELEASE. AntiPop Consortium arrhythmia (WARP94) 04 / 2002. *BUY RELEASE ($9.99). Antipop Consortium s second album, and their http://www.warprecords.com/bleep/current_item.php?selection=WARP94_DM

39. WARP RECORDS | ANTI-POP CONSORTIUM | ARRHYTHMIA | WARP94 RELEASED 08.04.02 ON WARP. ARTWORK BY SMARTBOMB. WARPCD94 (5 COMPACT DISC). BUY THIS ITEM £6.99, A01, CONTRAPTION, AUDIO, A02, BUBBLZ, AUDIO, A03, PING PONG, AUDIO, http://www.warprecords.com/ography/release.php?cat=WARP94

40. Arrhythmia Palpitations - Causes Of Irregular Heart Beat Rate Explaining the causes, symptoms and treatment of arrhythmia, available for down loading in Adobe acrobat format. http://hcd2.bupa.co.uk/fact_sheets/mosby_factsheets/Arrhythmia.html

search home services health information ... BUPA Products and services Health insurance Financial protection Hospitals Care homes ... International cover Visitor interest areas Individuals Business Intermediaries Health professionals ... BUPA members Facilities finder Find local health and fitness facilities World of BUPA BUPA services around the world at bupa.com health information ABC of health Arrhythmia Published by BUPA's Health Information Team January, 2003 Download this factsheet An arrhythmia is a disturbance of the normal rhythm of the heart. The heart normally beats between sixty and eighty times a minute. Arrhythmia is when the heart rate becomes abnormally rapid, slow and/or irregular. About arrhythmias Arrythmias are very common and may occur naturally, or be due to heart disease or other causes, such as a reaction to a drug. Arrhythmia may occur continuously or just occasionally. The heartbeat For general information on the heart, please see the BUPA factsheet The cardiovascular system A heartbeat starts as a small electrical impulse in a special part of the heart wall called at the sinoatrial node (SAN). This is sometimes called the heart's natural "pacemaker". A network of nerves conduct this impulse all over the heart, and in turn this causes contraction of the atria (the two smaller chambers) and ventricles (the two larger chambers). Each heartbeat is represented on a heart trace (electrocardiogram or ECG; see illustration below). ECG traces The symptoms of arrhythmia Many arrhythmias cause no symptoms and may go unnoticed. However they may lead to palpitations, which is an unpleasant awareness of the heartbeat, often described as a thumping in the chest. However, occasionally, arrhythmia can cause sudden death. Other symptoms may include:

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