81. Congenital Heart Disease On The Web - Unknown Graphics/case #242 Ebstein's Malformation of the tricuspid valve. Characterized by abnormalleaftlets of the tricuspid valve, in which they form a atrium http://www.med.umn.edu/radiology/cvrad/chd/ebs.html

Ebstein's Malformation of the Tricuspid Valve Characterized by abnormal leaftlets of the tricuspid valve, in which they form a "atrium-like" chamber in the right heart. A small right ventricle is present, in contrast to typical tricuspid regurgitation, in which the right ventricle is enlarged. A right-to-left shunt occurs through the atria, resulting in cyanosis. Incidence Age at Presentation Often neonatal, but may present in adulthood in mild graphics/cases Clinical Cyanosis Congestive heart failure Clubbing Pulmonary Vasculature Classically decreased, but may be normal Radiologic Findings Massive cardiomegaly Box-like shape to heart Associations Complications Other associated Congenital Heart Defects Pulmonary stenosis Treatment Medical management Surgical correction of valve Patients may be asymptomatic Spectrum of Images Ebstein's Malformation

82. BBC Health - Features - Heart Valve Disease of the main causes of heart valve disease Rheumatic fever Each heart valve is aset of flaps or So the tricuspid valve controls blood flow from the right http://www.bbc.co.uk/health/features/heart_valve.shtml

CATEGORIES TV RADIO COMMUNICATE ... INDEX SEARCH MONDAY 31st March 2003 Text only BBC Homepage Health Homepage Ask the Doctor ... Help Like this page? Send it to a friend! Feature Heart valve disease By Trisha Macnair What is a heart valve? Problems lead to disruption of blood flow Mitral valve prolapse: trendy diagnosis or real problem? ... Treating heart valve problems One of the rites of passage that medical students must go through to earn their white coat is to spend many hours listening down the stethoscope to their patient's heart beating. At first it's little more than a fuzzy strain on the ear but with perseverance you get to recognise all sorts of whistles, clicks and whirs as the heart goes about its pumping job. It's an essential skill because some of those noises spell out disease, especially of the heart valves. One noise, which many people have heard about, is a murmur. This is simply a sound created by the flow of blood. It may be normal (for example after heavy exercise anyone may develop a murmur due to increased blood flow.) Or it may be highly specific for a certain heart valve problem, allowing experts to diagnose defective heart valves after just a quick listen to the heart. I've painted a rather old fashioned scene, because these days not only does the medical school curriculum cover a much more diverse range of skills and approaches to diagnosis, but also one of the main causes of heart valve disease - Rheumatic fever - is very rare now. However, a report at a recent meeting of the

83. 1Up Health > Health Links Directory > Conditions And Diseases: Cardiovascular Di and treatment. Inova Heart Center An article about tricuspid valvedisease as well as stenosis and regurgitation. The Merck Manual http://www.1uphealth.com/links/valvular-tricuspid-valve-disease.html

Home Contact Us Privacy Caring For Your Well Being Alternative Medicine Clinical Trials Health News Poisons ... Health Topics A-Z Search 1Up Health Health Directory Addictions Alternative Animal ... Weight Loss By Demography Child Health Teen Health Men's Health Women's Health ... Valvular : Tricuspid Valve Disease Sites Adam.com A look at tricuspid regurgitation and its alternative name, as well as the causes and risk factors. iafrica.com A Question and Answer A look at tricuspid valve damage, the causes, complications, symptoms and treatment. Inova Heart Center An article about tricuspid valve disease as well as stenosis and regurgitation. The Merck Manual Description of tricuspid regurgitation and stenosis. Symptoms, signs, diagnosis and treatment are discussed for both. Tricuspid and Pulmonary Valve Problems An explanation of the valves, the symptoms, causes and diagnosis are mentioned as well as a discussion about stenosis and regurgitation. Tricuspid Stenosis The causes, symptoms, diagnosis and surgery are discussed here as well as some other related topics. Help build the largest human-edited directory on the web.

84. MedTech1.com - Heart Valve Disease The four valves are the pulmonary valve, the aortic valve, the tricuspid valve,and the mitral valve. Heart valve disease occurs when one or more of the four http://www.medtech1.com/research_center/cond20.cfm?cond_id=109

85. Cardiovascular Pathology the downstream (ie ventricular) side of the tricuspid valve leaflets. This may leadto tricuspid regurgitation. Nonrheumatic valvar disease selected examples. http://www.med.ualberta.ca/lmp/000p005d.htm

CARDITIS Rheumatic Heart Disease Rheumatic fever is a clinical syndrome of poorly understood pathogenesis, which affects multiple organ systems. It only occurs following pharyngeal infection with Lancefield group A ß-hemolytic streptococci, although the reason for this association is still unknown. The mechanism may include cross-reactivity between streptococcal components and human connective tissue elements, or possibly modification of self antigens by streptococcal infection. More recently, streptococcal M proteins have been implicated; these are proteins which act as 'superantigens' and nonspecifically stimulate whole populations of T cells. In the acute phase, rheumatic fever may present with CNS involvement (Sydenham's chorea), polyarticular arthritis, skin changes, and carditis. Rheumatic carditis is a pancarditis , which means that all the layers of the heart are involved - endocardium, myocardium, and pericardium. The microscopic lesion of acute rheumatic carditis is the Aschoff nodule (see Image 31 [~336 kb] and Description ), a collection of lymphocytes and histiocytes which is most easily found in the fibrous interstitial septa of the myocardium. Fibrinous pericarditis ("bread-and-butter" pericarditis) may occur and give rise to a frictions rub. In the acute phase, involvement of the heart valves may lead to wart-like raised fibrinous lesions ("verrucae") on the closure line of the valve cusps.

86. Heart Valve Disease - PlatinumMD referred to as lub, is the simultaneous closing of the tricuspid and mitral Specificallywith heart valve disease, an extra sound that may be heard when http://www.platinummd.com/medinfo/monographs.asp?cid=190&p=2

87. Diseases And Conditions -- Discovery Health -- Tricuspid Regurgitation This condition has many causes, including · congenital heart disease, in whichthe infant is born with an defective tricuspid valve · congestive heart http://health.discovery.com/diseasesandcond/encyclopedia/67.html

tricuspid regurgitation By Eric Berlin, MD Tricuspid regurgitation occurs when the tricuspid valve within the heart fails to close tightly. This causes blood to flow backward. What is going on in the body? There are four chambers in the heart, two on the left side and two on the right. The tricuspid valve separates the upper and lower chambers on the right side of the heart. Failure of this valve to close properly may lead to circulation problems and damage to the heart over time. What are the signs and symptoms of the disease? Many people with triscuspid regurgitation have no symptoms. If symptoms do occur, they may include: fatigue cold skin palpitations , or an unusual awareness of the heartbeat shortness of breath abdominal distress swollen veins in the neck swelling in the legs What are the causes and risks of the disease? This condition has many causes, including: congenital heart disease , in which the infant is born with an defective tricuspid valve congestive heart failure a heart attack pulmonary hypertension, or high blood pressure in the arteries that carry blood through the lungs rheumatic fever , a condition that may occur as a complication of strep throat infection of the heart valves, called endocarditis. A person who uses intravenous drugs, such as heroin, is at a high risk for this cause of tricuspid valve damage.

88. Tricuspid Dysplasia: A Cardiologist's Perspective genes) responsible for the defect, its tricuspid valve will be the puppy will havea dysplastic valve at birth leak will dictate the severity of the disease. http://www.gglrc.org/articles/tvd.shtml

GGLRC Home About Us Articles Awards ... Search Site Tricuspid Dysplasia: A Cardiologist's Perspective By Lori Siemens, DVM, DACVIM Posted with the permission of the author. Tricuspid valve dysplasia (TVD) is a congenital, heritable heart defect that seems to be increasing in prevalence in Labrador Retrievers.  The tricuspid valve is one of four heart valves and allows blood to flow in one direction from the right atrium into the right ventricle.  If a puppy inherits the gene (or genes) responsible for the defect, its tricuspid valve will be malformed in utero.  The medical term for malformation of a valve is “dysplasia”.  Thus, the puppy will have a dysplastic valve at birth that does not shut tightly, allowing blood to leak (regurgitate) back through it.  The size of the leak will dictate the severity of the disease.  A puppy with mild regurgitation will likely have a normal life span.  If the regurgitation is severe, the puppy may not live to see its first birthday. Severe TVD causes the right side of the heart to progressively enlarge.  The blood leaking backwards into the right atrium eventually causes the pressure inside this chamber to rise.  Since veins returning from the liver connect to the right atrium, the pressure in the veins of the liver also increases.  The high venous pressure causes fluid to ooze from these liver vessels which then accumulates in the abdominal cavity.  This fluid is termed “ascites” and is a form of congestive heart failure.  The onset of ascites indicates advanced, end-stage cardiac disease.  Medications can help palliate the symptoms, but it is considered a terminal condition.

89. Heart Valves can see in the figure below the tricuspid valve (1), the mitral valve (3) , and theaortic valve (4). These by birth defects, or an acquired disease such as http://www.askaheartsurgeon.com/leaky valve.htm

Heart Valves It is clear from these figures that a valve that has a small opening because of disease (ie: rheumatic fever) will impede the flow of blood through the heart. Over time this will cause the top chamber of the heart (usually the left atrium in the case of mitral valve disease) to become enlarged. Sometimes the heart will develop atrial fibrillation as a result of the enlarged left atrium. (see figure below, on left). Atrial fibrillation is a type of irregular heart beat. Click here to learn more about this irregular heart beat. Similarly, a valve whose opening is too wide and is not able to stop the backward flow of blood when it attempts to close, is insufficient. This will result in less foward flow through the heart since a large amount of blood is pushed backwards toward the top chamber, the left atrium, (see figure below on right). Do you have a question about heart valve disease e-mail us today.

90. Heart Valve Disease Heart valve disease. The four valves to become restricted. To learn moreabout specific types of valve disease, please select a valve http://www.mercyweb.org/heartcenter/html/hvd_home.asp

Heart Valve Disease The four valves of the heart are made up of two or three very strong flaps of tissue, called leaflets, that open and close as the heart contracts and relaxes. When working properly, these leaflets keep blood flowing in the right direction in the heart. But when they do not work properly, a number of conditions can occur, and these conditions can cause heart valve disease. Although there are many different types of heart valve disease, the primary ones are: Stenosis This happens when a valve opening becomes narrowed or does not form properly. Regurgitation This occurs when a valve fails to close completely, causing some blood to leak backward instead of flowing forward. Regurgitation is also known as insufficiency. Sclerosis Sclerosis is a thickening of the valve itself which causes the valve to become restricted. To learn more about specific types of valve disease, please select a valve:

91. Mitral Valve Disease Mitral valve disease. There are two valves on the right side of the heart, the tricuspidand pulmonary valves, and two valves on the left side of the heart, the http://www.tcg.cardiologydomain.com/images/uploaded/TCG/Mitrial.cfm

Mitral Valve Disease The heart is a muscular pump divided into four chambers. Two thin-walled chambers, the left atrium and right atrium, form the upper part of the heart. The other chambers, the left and right ventricles, are the heart’s main blood-pumping chambers and form the bottom part of the heart. The right atrium receives blood as it returns to the heart from the veins from different parts of the body and transports blood to the right ventricle, and the left atrium receives oxygenated blood from the lungs and transports it to the left ventricle. The right ventricle pumps blood into the lungs to be oxygenated, while the left ventricle pumps blood to the rest of the body to deliver the oxygen. The valves in the heart affect the way that blood flows through the chambers of the heart. There are two valves on the right side of the heart, the tricuspid and pulmonary valves, and two valves on the left side of the heart, the mitral and aortic valves. These valves resemble flaps, and each valve is made up of segments or leaflets. The valves open and close to keep blood flowing through the heart in only one direction. The tricuspid valve separates the right atrium and right ventricle. When the heart beats, the tricuspid valve is pushed shut, preventing blood from flowing backward from the right ventricle into the right atrium. When the heart relaxes, the tricuspid valve opens, allowing blood from the right atrium to fill the right ventricle. When the heart beats, the pulmonary valve is pushed open, allowing blood to flow into the lung arteries. When the heart relaxes, the pulmonary valve closes, preventing blood from flowing backward into the right ventricle.

92. Valve Disease valve disease. We invite you to explore our indepth health informationon this topic by visiting the pages listed below http://216.68.156.42/regions/cincinnati/content/hm_heart_diseases_valve_disease.

QUICK FIND Health Information Find A Physician For Nurses Job Openings Supporting the Mission Mercy Healthcare Library Services HEART CARE MENU Heart Diseases Prevention Cardiac Rehabilitation Search Heart Center Heart Care Books Valve Disease We invite you to explore our in-depth health information on this topic by visiting the pages listed below: Aortic Valve Stenosis Heart Valve Repair Heart Valve Replacement Mitral Valve Insufficiency ... Tricuspid Valve Stenosis Return to Heart Diseases Information. Privacy Statement © Catholic Healthcare Partners

93. Heart Valve Disease Heart valve disease. aortic valve between the left ventricle and the aorta (a large tricuspidvalve between the right atrium (filling chamber) and the right http://www.med.umich.edu/hcp/pa_info/vle_dse.htm

P ATIENT I NFORMATION ... ROGRAM Heart Valve Disease The filling and pumping chambers on each side of the heart are separated by one-way valves. These four valves each have two or three tissue flaps called leaflets that act as doors which open and close to ensure that blood flows only in the proper direction. Left side valves: mitral valve: between the left atrium (filling chamber) and the left ventricle (pumping chamber) aortic valve: between the left ventricle and the aorta (a large artery that takes blood to the rest of the body) Right side valves: tricuspid valve: between the right atrium (filling chamber) and the right ventricle (pumping chamber) pulmonic valve: between the right ventricle and vessels leading to the lungs Valve problems present from birth are called congenital malformations. Other valve deformities are not acquired until later in life. Conditions such as an infection can invade or damage the vaIve leaflets or doors. The natural aging process may weaken already damaged valve leaflets or harden normal valve tissue. Valve problems produce many symptoms. Faulty heart valves can cause dizziness, shortness of breath, fatigue, irregular heart beats, fluid buildup, strokes and heart attacks. Tests such as an echocardiogram or a cardiac catheterization can show if heart valves are damaged or not functioning properly.

94. Cardiac Care Online - Heart Valve Disease Diagnosis / Heart valve disease. But when they don't work properly, a number ofconditions can occur, and these conditions can cause heart valve disease. http://www.oakwood.org/cardio/heart_valve_disease_home.asp

Home Find a Physician Classes and Events Home ... Diagnosis / Heart Valve Disease Heart Valve Disease The four valves of the heart are made up of two or three very strong flaps of tissue, called leaflets, that open and close as the heart contracts and relaxes. When working properly, these leaflets keep blood flowing in the right direction in the heart. But when they don't work properly, a number of conditions can occur, and these conditions can cause heart valve disease. Although there are many different types of heart valve disease, the two primary ones are: Stenosis This happens when a valve opening becomes narrowed or does not form properly. Regurgitation This occurs when a valve fails to close completely, causing some blood to leak backward instead of flowing forward. Regurgitation is also known as insufficiency. Sclerosis Sclerosis is a thickening of the valve itself which causes the valve to become restricted.

95. (Print Version) CARDIOVASCULAR DISEASE REGURGITATION tricuspid regurgitation is a condition in which the tricuspid valvebecomes leaky occur by itself or in combination with a disease process that http://www.lef.org/protocols/prtcls-txt/t-prtcl-cardio/card_122.shtml

THE LIFE EXTENSION FOUNDATION www.lef.org CARDIOVASCULAR DISEASE Please read this before continuing on: THIS INFORMATION (AND ANY ACCOMPANYING PRINTED MATERIAL) IS NOT INTENDED TO REPLACE THE ATTENTION OR ADVICE OF A PHYSICIAN OR OTHER HEALTH CARE PROFESSIONAL. ANYONE WHO WISHES TO EMBARK ON ANY DIETARY, DRUG, EXERCISE, OR OTHER LIFESTYLE CHANGE INTENDED TO PREVENT OR TREAT A SPECIFIC DISEASE OR CONDITION SHOULD FIRST CONSULT WITH AND SEEK CLEARANCE FROM A QUALIFIED HEALTH CARE PROFESSIONAL. TRICUSPID VALVE The tricuspid valve has three main cusps and is situated between the right atrium from the right ventricle. The right atrium receives blood returning from the body and pushes the blood into the right ventricle. As the right and left ventricles relax during the diastolic phase of the heartbeat, the tricuspid valve opens, allowing blood to enter the ventricle. During the systolic phase of the heartbeat, both blood-filled ventricles contract, pumping out their contents, while the tricuspid and mitral valves close to prevent any backflow. TRICUSPID REGURGITATION Tricuspid regurgitation is a condition in which the tricuspid valve becomes leaky, allowing blood to flow backward from the right ventricle into the right atrium. It can occur by itself or in combination with a disease process that elevates right ventricular pressure.

A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

Page 5     81-95 of 95    Back | 1  | 2  | 3  | 4  | 5