Heart Health Topics

Featured Tests and Procedures
In an aortic valve replacement, the aortic valve is replaced with a manmade valve or a valve from an animal. This eMedTV article takes a detailed look at what this procedure entails and discusses possible complications.
As this eMedTV article explains, one of the tests used to identify irregular heart rhythms is an echocardiogram. For atrial fibrillation cases, an echocardiogram provides a live picture of the heart that can help doctors diagnose and treat the problem.
As this eMedTV page explains, atrial fibrillation is often diagnosed with the help of an electrocardiogram (ECG or EKG), a test that monitors electrical signals coming from your heart. If the test is inconclusive, event monitor tests may be conducted.
This eMedTV Web page explains how a test known as an electrophysiology study, or EPS, is used for atrial fibrillation diagnosis. An EPS for atrial fibrillation diagnosis helps determine the exact pattern of electrical activity in the heart.
Mitral valve replacement surgery involves replacing a defective or diseased mitral valve with a new valve. This eMedTV article discusses medical conditions that may be treated with this surgery, such as mitral valve stenosis.
As explained in this eMedTV resource, thyroid tests for atrial fibrillation diagnosis measure hormones known as TSH and T4. If the thyroid tests show that TSH or T4 levels are too high, they may be the cause of atrial fibrillation.
Featured Conditions and Diseases
In aortic valve regurgitation, the aortic valve does not close properly, causing blood to flow backward. This eMedTV article points out that most cases are mild. In severe cases, surgery may be required. Treatment options are also discussed.
Aortic stenosis is a condition that is characterized by a narrowing of the aortic valve in the heart. This eMedTV offers an overview of this condition, including information on its causes, symptoms, and treatment options.
Atrial fibrillation is when the heart beats irregularly -- it is not a heart attack. This segment from the eMedTV library explains this medical condition in detail, with information on how it is diagnosed and treated, possible risk factors, and more.
Normally the heart's aortic valve has three cusps, but a bicuspid aortic valve has only two cusps. As this eMedTV page explains, this type of aortic valve is not usually a problem. This article takes a look at how it is diagnosed and treated.
As explained in this eMedTV article, the causes of coronary heart disease (CHD) involve a narrowing of the coronary arteries. There are also certain risk factors (such as smoking or being overweight) that increase a person's chances of developing CHD.
Hardening of the arteries (arteriosclerosis) refers to the hardening and thickening of blood vessels. This eMedTV article examines the conditions that cause hardened arteries, such as atherosclerosis (a buildup of plaque on the artery walls).
Coronary artery disease is often referred to as "heart disease," but many different heart diseases exist. This eMedTV article discusses these conditions based on the area of the heart or blood vessel system they affect.
Mitral stenosis is the narrowing of the heart's mitral valve. The information contained in this eMedTV resource explains how the mitral valve works, as well as the health risks that may develop with this condition.
Mitral valve prolapse occurs when leaflets abruptly bulge back into the atrium as the heart beats. This eMedTV Web page describes the anatomy behind the condition, explains how it is diagnosed, and discusses a person's prognosis.
When mitral valve regurgitation occurs, the heart's mitral valve does not close properly. This eMedTV article explains how this condition allows blood to leak backwards into the left atrium, possible symptoms, treatment options, and more.
A myocardial infarction is more commonly known as a heart attack. This portion of the eMedTV archives describes what happens during a myocardial infarction and provides information about recognizing symptoms of this life-threatening event.
Paroxysmal atrial fibrillation is a type of irregular heartbeat that occurs only occasionally. As this eMedTV segment explains, an episode of paroxysmal atrial fibrillation may last a few minutes, hours, or days.
Pulmonary stenosis is a congenital heart disease in which the pulmonary valve of the heart is restricted. This eMedTV segment explains how the conditions is diagnosed and treated. People with mild cases typically require no treatment.
Tricuspid regurgitation is a heart condition in which the tricuspid valve does not close properly. This eMedTV page describes symptoms and explains that it is most often caused by rheumatic fever. Usually, this condition requires little or no treatment.
Tricuspid stenosis is a rare condition in which the heart's tricuspid valve is narrowed. This portion of the eMedTV archive discusses the causes, symptoms, diagnosis, and treatment of this condition.
Featured Medications
Acebutolol is a prescription drug approved to treat high blood pressure and certain irregular heart rhythms. This eMedTV segment describes how the product works, offers dosing information, and talks about the side effects that may occur.
Amiodarone comes in several strengths and forms and is prescribed to treat certain heart rhythm problems. This eMedTV page contains an overview of this antiarrhythmia medication, with details on how it works, possible side effects, dosing tips, and more.
Blocadren is a prescribed drug used to treat several conditions related to the heart and blood vessels. This eMedTV page covers possible uses, such as treating high blood pressure and preventing heart attacks, as well as general precautions.
Carvedilol CR is a prescription drug used to treat a few conditions related to the heart and blood vessels. This eMedTV resource discusses specific uses of the drug, explains how the medication works, and lists some of its potential side effects.
People who have serious irregular heart rhythms may receive a prescription drug called Cordarone. This eMedTV Web page takes a closer look at what this medication is used for, how it works, and why it may not be appropriate for some people.
Disopyramide is prescribed to treat certain heart rhythm problems. This part of the eMedTV Web library presents an overview of this antiarrhythmia medication, with details on dosing instructions, how it works, possible side effects, and more.
Available by prescription, enoxaparin is a type of blood thinner used to treat and prevent blood clots. This eMedTV resource takes an in-depth look at the medicine, including information on how it works, how to inject it, and potential side effects.
Esmolol is a drug used during surgeries or emergencies to treat arrhythmias, tachycardia, or hypertension. This eMedTV segment covers this medicine in more detail, including how it works, potential side effects, and more.
If you have atrial fibrillation or heart failure, Lanoxin may be an important part of your treatment. This eMedTV segment describes this heart medication in more detail, including how it works, possible side effects, dosing guidelines, and effectiveness.
Available by prescription only, Mexitil is used to treat potentially life-threatening heart rhythm problems. This eMedTV segment offers a comprehensive look at this antiarrhythmia medication, including how it works, side effects, dosing tips, and more.
Multaq is a prescription drug used to treat irregular heart rhythms (atrial fibrillation or atrial flutter). This eMedTV article describes the specific effects of this medicine, explores how it may work, and offers dosing information for the product.
Nexterone is prescribed to treat potentially life-threatening heart rhythm problems. This eMedTV Web page offers a complete look at this antiarrhythmia medication, including information on how it works, how it is given, possible side effects, and more.
Nitroglycerin ointment is a prescription drug applied to the skin twice daily to prevent chest pain. This eMedTV resource offers an in-depth look at this angina medicine, providing details on its dosing, possible side effects, safety warnings, and more.
NitroMist is a prescription mouth spray used to help relieve chest pain. This eMedTV resource provides a complete overview of this angina medicine, with an explanation on how it works, potential side effects, and tips on how to use this spray effectively.
Norpace is a medicine given to help control potentially life-threatening heart rhythm problems. This eMedTV selection takes an in-depth look at various topics, such as how this drug works, how to take it, possible side effects, and more.
Available by prescription only, Pacerone is a drug used to treat dangerous heart rhythm problems. This eMedTV Web page features a comprehensive look at this antiarrhythmia medication, including dosing instructions, how it works, side effects, and more.
Pentoxifylline is a drug that improves circulation in those with arterial peripheral disease. This eMedTV article offers an in-depth look at this medication, including information on possible side effects, how it works, and how it should be taken.
Pradaxa is prescribed to help reduce various kinds of blood clots and strokes in people with a-fib. This eMedTV page further explores this drug, with details on how it works as a "blood thinner," potential side effects, safety precautions, and more.
Propafenone SR capsules are taken twice daily to treat certain irregular heart rhythms. This eMedTV Web page presents an overview of this prescription drug, including how it works, side effects, dosing tips, and more.
Taking ranolazine can help control chronic angina (chest pain) in adults. This part of the eMedTV Web library features more details on this prescription medication, including dosing instructions, possible side effects, and more.
Rythmol tablets are taken three times a day to treat certain types of heart rhythm problems. This eMedTV Web page discusses this prescription drug in detail, with information on how it works, potential side effects, safety concerns, and more.
Samsca tablets are taken once daily to increase blood sodium levels in people with certain medical problems. This eMedTV Web page focuses on a number of different topics, including details on how this drug works, potential side effects, and more.
Sotalol is often prescribed for the treatment of irregular heart rhythms. This page on the eMedTV Web site discusses these uses in more detail, describes how the medicine works, and offers important information on when and how to take it.
Tambocor tablets are taken two to three times a day to prevent certain types of heart rhythm problems. This eMedTV selection explores this prescription drug in detail, with information on how it works, potential side effects, safety precautions, and more.
Ticagrelor is an antiplatelet drug. As this eMedTV page explains, it helps prevent heart attacks and other problems in people with acute coronary syndrome (ACS). This article gives an overview of this drug and its uses, effects, and dosing guidelines.
Tikosyn capsules are taken twice daily to treat certain types of irregular heartbeats. This eMedTV Web selection examines various properties of this prescription medication, including specific uses, how it works, possible side effects, and more.
Warfarin is a prescription medicine licensed to prevent and treat blood clots due to various causes. This eMedTV article describes how this medication works, lists potential side effects, and explains what you should be aware of before taking it.
Featured Symptoms
As this eMedTV article explains, a heart murmur is an unexpected sound that is heard while listening to a person's heartbeat. While most are harmless -- and are even present from birth -- some are an indication that there is a problem with the heart.
Featured Anatomy
The human heart is a hollow, muscular, fist-sized organ that pumps blood through a network of blood vessels. This eMedTV segment takes an in-depth look at the different parts of the heart and explains how they function within the circulatory system.
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