1. Mitral Valve Dysplasia What does mitral valve disease mean to your dog you? There is no cure for mitral valve disease but your veterinarian can recommend medical therapy to http://www.upei.ca/~cidd/Diseases/cardiovascular diseases/mitral valve dysplasia

related terms: mitral valve disorder, mitral valve malformation, mitral dysplasia, mitral systolic murmur What is mitral valve disease? The heart consists of 4 chambers - 2 atria and 2 ventricles. The atrioventricular (AV) valves ensure that the blood flows from the atria to the ventricles when the heart beats. A defect in the mitral valve (the left atrioventricular valve) causes backflow of blood into the left atrium, or mitral regurgitation. Less commonly, a narrowing or stenosis of the valve can be identified. Because of the leaky valve, the heart is less efficient at pumping blood to the body. Mitral valve insufficiency is the most common acquired cardiac disease in older dogs, affecting over one third of dogs greater than 10 years of age. In some breeds however, mitral insufficiency develops at a much younger age, due to an inherited predisposition for this disorder. In some breeds, abnormal development (dysplasia) of the valve has been identified in the embryo. How is mitral valve disease inherited? Although the pattern of inheritance has not been identified, it is agreed that there is a genetic basis for the early development of mitral valve disease.

2. The Holistic M.D. What is mitral valve prolapse? Explains symptoms, diagnosis, exercise. For those seeking alternative treatments, nutritional therapy and natural http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

3. Mitral Valve Disease A Chapter from the Cleveland Clinic s Disease Management Project, authored by Brian Griffin, MD and Emil Hayek, MD, which deals with mitral valve disease. http://www.clevelandclinicmeded.com/diseasemanagement/cardiology/mitralvalve/mit

Reviewed July 14, 2004 Brian Griffin, MD Department of Cardiology Emil Hayek, MD Department of Cardiology Print Chapter The Cleveland Clinic Foundation The mitral valve is made up of the annulus, the anterior and posterior leaflets, and the chordae, which attach the leaflets to their respective papillary muscles. A normally functioning valve allows blood to flow unimpeded from the left atrium to the left ventricle during diastole and prevents regurgitation during systole. Normal mitral valve function is dependent not only on the integrity of the underlying valvular structure, but on that of the adjacent myocardium as well. This chapter reviews three types of mitral valve disease: mitral stenosis, mitral regurgitation (including primary nonischemic, ischemic, and functional mitral regurgitation), and mitral valve prolapse. Practice guidelines published jointly by the American College of Cardiology (ACC) and the American Heart Association (AHA) for the management of patients with valvular heart disease are referenced within this chapter.

4. MedlinePlus Heart Valve Diseases mitral valve disease (American Heart Association) Links to PDF. Mitral Valve Stenosis (Mayo Foundation for Medical Education and Research) http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

5. MedlinePlus: Heart Valve Diseases mitral valve disease (American Heart Association) Links to PDF; Mitral Valve Information from the Medical Encyclopedia; Heart Valve Diseases http://www.nlm.nih.gov/medlineplus/heartvalvediseases.html

@import url(http://www.nlm.nih.gov/medlineplus/images/advanced.css); Skip navigation Other health topics: A B C D ... List of All Topics Heart Valve Diseases Contents of this page: News Overviews Diagnosis/Symptoms Treatment ... Information from the Medical Encyclopedia Search MEDLINE/PubMed for recent research articles on Heart Valve Diseases: Heart Valve Diseases Heart Valve Replacement You may also be interested in these MedlinePlus related pages: Mitral Valve Prolapse Heart and Circulation Latest News Parkinson's Drug Linked to Heart Valve Damage (08/25/2005, Reuters Health) Overviews Heart Valve Disorders Heart Valves (American Heart Association) Diagnosis/Symptoms Doppler Ultrasound (Mayo Foundation for Medical Education and Research) Echocardiogram (Patient Education Institute) - Requires Flash Player Also available in: Spanish Ejection Fraction (Mayo Foundation for Medical Education and Research) Frequently Asked Questions about Transesophageal Echocardiography (TEE) (American Society of Echocardiography) Frequently Asked Questions about Transthoracic Echocardiography (American Society of Echocardiography) MR Angiography (MRA) (American College of Radiology, Radiological Society of North America)

6. Mitral Valve Disease mitral valve disease (Mitral Valve Regurgitation) by Jennie Bullock http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

7. Mitral Valve Prolapse A collection of resources relating to mitral valve prolapse syndrome/dysautonomia and this disease. http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

8. Pediatric Cardiology: Mitral Valve Disease Mitral disease/subaortic stenosis (lao) Mitral valve cleft (pssa) Mitral valve prolapse (4c) Mitral valve prolapse, diastole (lao) http://www.kumc.edu/kumcpeds/cardiology/mitralvalvedfct.html

Mitral Valve Disease Chest Radiograph: Mitral stenosis, child Mitral stenosis, child, barium swallow Diagrams: Mitral Valve Prolapse Auscultation areas Cardiac cycle Echocardiogram (video): Normal heart, aortic arch Normal heart, branch pulmonary arteries Normal heart, long axis, (with labeled frame) Normal heart, long axis #2 ... Parachute mitral valve Echocardiogram (still frame): M-mode, left ventricle, normal M-mode values 4 chamber view, normal (4c) 4 chamber view 1, normal (4c invert) ... Echo diagram, suprasternal notch Electrocardiogram: Mitral regurgitation, adolescent Normal, #1, child Normal, #2, child ECG 12 lead interval diagram ... Return to the defect index page

9. The Physician And Sportsmedicine Mitral Valve Prolapse physician should seek cardiology consultation for anyone who has mitral valve disease with mitral regurgitation, significant arrhythmias, or a http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

10. Mitral Valve Disease mitral valve disease (Mitral Valve Regurgitation) by Jennie Bullock. There are many diseases which affect the mitral valve and its supporting structures. http://www.barkbytes.com/medical/med0045.htm

Mitral Valve Disease (Mitral Valve Regurgitation) by Jennie Bullock There are many diseases which affect the mitral valve and its supporting structures. The most common disorder of the mitral valve is the partial backflow (regurgitation) of blood through the valve. Regurgitation is usually the result of valvular degeneration, which occurs most often in older members of the smaller dog breeds. In valvular degeneration, the leaflets or cusps which make up the valve, may have contracted and curled back on themselves. This allows the valve to leak. Valvular degeneration can also be a secondary result of an infection of the valve (endocarditis), or as a congenital (present at birth) malformation of the valve. With mitral regurgitation the blood backflows (leaks) from the left ventricle into the left atrium of the heart. This regurgitation frequently occurs which such velocity that it produces a turbulence. This turbulence can usually be detected as a systolic murmur, heard between the first and second heart sounds. As a result of mitral regurgitation the excess blood accumulates in the left atrium causing it to enlarge. The enlargement of the left atrium can lead to enlargement of the left ventricle. The amount of regurgitation is directly correlated with the size of the left atrium and ventricle.

11. ABC News Genetic Link In Heart Valve Disease Deaths Found suggest that unknown genetic factors contribute to death due to mitral valve disease and death due to nonrheumatic aortic valve disease. http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

12. Mitral Valve Disease,heart Matters mitral valve disease (Stenosis,Insuficiency). FSSADR MD FACS. mitral valve disease COULD CAUSE MITRAL STENOSIS (MS) OR REGURGITATION (MR). http://www.enter.net/~fsadr/mitvalve.htm

Mitral Valve disease (Stenosis,Insuficiency) F.S.SADR MD FACS MITRAL VALVE DISEASE COULD CAUSE MITRAL STENOSIS (MS) OR REGURGITATION (MR).IN MITRAL STENOSIS(MS) TOO LITTLE BLOOD DRAINS TO THE MAIN PUMPING CHAMBER OF THE HEART (LEFT VENTRICLE,LV),IN CONTRAST WITH MITRAL REGURGITATION (MR) PORTION OF THE BLOOD FROM LEFT VENTRICLE WILL REGURGITATE IN TO THE LEFT ATRIUM (CHAMBER ABOVE MITRAL VALVE) THROUGH THE MITRAL VALVE AND SUBSEQUENTLY BLOOD WILL BACK UP IN TO THE LUNGS AND CAUSES NUMEROUS SYMPTOMS. INDICATIONS FOR SPECIFIC VALVE TYPE WHETHER THEY BE MECHANICAL OR BIOPROSTHESIS ,HAVE BEEN REGOROUSLY DEFINED IN RECENT YEARS .CANDIDATE FOR BIOPROSTHESIS WOULD BE: OLDERS PATIENT PATIENTS WHO ARE NONCOMPLIANT. PATIENTS WHO HAVE CONTRAINDICATIONS TO ANTICOAGULATION . PATIENT IN NORMAL SINUS RHYTHEM. YOUNG FEMALE DESIROUS OF FUTURE PREGNANCY. RECENT DATA SUGGEST THAT PATIENT AGE AND PRESENCE OF CORONARY ARTERY DISEASE MAY SIGNIFICANTLY ALTER THE INDICATIONS FOR MECHANICAL OR BIOPROSTHESIS(TISSUE VALVES).SURVIVAL FOR MITRAL VALVE REPLACEMENT IS AFFECTED BY ETIOLOGY OF THE VALVE DISEASE NECESSITATING THE OPERATION. THE BEST SURVIVAL OCCURS IN PATIENTS IN WHOM THE MITRAL VALVE REPLACEMENT IS FOR MYXOID DEGENERATION (NONRHEUMATIC,NON CALCIFIC)

13. Mitral Valve Prolapse Syndrome A personal website dedicated to the support of those with mitral valve prolapse syndrome. http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

14. Understanding Mitral Valve Prolapse Syndrome Page Boudoulas, J. (1992). Mitral valve prolapse Etiology, clinical presentation and neuroendocrinefunction. Journal Heart Valve Disease, http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

15. HELP IS AVAILABLE FOR MITRAL VALVE PROLAPSE SYNDROME AND We are a nonprofit, charitable organization dedicated to spreading the word about mitral valve prolapse syndrome. It has numerous symptoms, including http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

16. Introduction: Mitral Valve Disease - WrongDiagnosis.com Introduction to mitral valve disease as a medical condition including symptoms, diagnosis, misdiagnosis, treatment, prevention, and prognosis. http://www.wrongdiagnosis.com/m/mitral_valve_disease/intro.htm

Home Symptoms Diseases Risks ... Diseases Search our medical database Subscribe to our free Newsletter sample Send this page to a friend Condition Lists By Organ By Symptom By Class By Prevalence ... List A-Z Current chapter: Mitral valve disease Next sections Basic Summary for Mitral valve disease Prevalence and Incidence of Mitral valve disease Types of Mitral valve disease Prevalence of Types of Mitral valve disease ... Causes of Mitral valve disease Next chapters: Myocarditis Palpitations Pericarditis Pulmonary incompetence ... Feedback Introduction: Mitral valve disease Mitral valve disease: Any disease of the heart's mitral valve. Conditions list: The list of conditions in the Mitral valve disease group includes: Mitral-valve prolapse Mitral regurgitation Mitral stenosis Causes of Mitral valve disease: Research more detailed information about the causes of Mitral valve disease , other possibly hidden causes of Mitral valve disease , or other general information about Mitral valve disease Statistics and Mitral valve disease: Various sources and calculations are available in statistics about Mitral valve disease prevalence and incidence statistics for Mitral valve disease , and you can also research other medical statistics in our statistics center Contents for Mitral valve disease: Basic Summary for Mitral valve disease Prevalence and Incidence of Mitral valve disease Types of Mitral valve disease Prevalence of Types of Mitral valve disease ... Glossary for Mitral valve disease Last revision: June 3, 2003

17. HeartPoint Mitral Valve Prolapse Mitral valve prolapse (MVP) is a common condition, occurring in up to 20% of the population. understanding of the heart and heart disease, and http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

18. Statistics About Mitral Valve Disease - WrongDiagnosis.com Statistics about mitral valve disease as a medical condition including prevalence, incidence, death rates, and social and hospital statistics. http://www.wrongdiagnosis.com/m/mitral_valve_disease/stats.htm

Home Symptoms Diseases Risks ... Mitral valve disease Search our medical database Subscribe to our free Newsletter sample Send this page to a friend Condition Lists By Organ By Symptom By Class By Prevalence ... List A-Z Current chapter: Mitral valve disease Next sections Hospital Statistics for Mitral valve disease Glossary for Mitral valve disease Next chapters: Myocarditis Palpitations Pericarditis Pulmonary incompetence ... Feedback Statistics about Mitral valve disease About statistics: This page presents a variety of statistics about Mitral valve disease. The term 'prevalence' of Mitral valve disease usually refers to the estimated population of people who are managing Mitral valve disease at any given time. The term 'incidence' of Mitral valve disease refers to the annual diagnosis rate, or the number of new cases of Mitral valve disease diagnosed each year. Hence, these two statistics types can differ: a short-lived disease like flu can have high annual incidence but low prevalence, but a life-long disease like diabetes has a low annual incidence but high prevalence. For more information see

19. Mitral Valve Disease Text Surgical Procedures for mitral valve disease; Stenosis Closed mitral commissurotomy Open mitral commissurotomy Mitral valve replacement likely with http://www.ctsnet.org/doc/4470

Mitral Valve Disease View TSDA Curriculum Online for this topic 1. Surgical Anatomy of the Mitral Valve Leaflet Anterior leaflet inserts on about 1.3 of the annulus Posterior leaflet inserts into about 2/3 of the annulus Posterior leaflet area is significantly larger than anterior leaflet area The combined leaflet area is twice the mitral orifice Chordae Primary attachment to free margin Papillary Muscles Anterolateral and posteromedial supplying both leaflets 2. Mitral Stenosis Etiology Rheumatic History Dyspnea, fatigue, palpitations, hemoptysis Physical exam Loud 1st heart sound, diastolic, rumble, opening snap Chest X-Ray Left atrial and right ventricular enlargement 3. Cardiac Catheterization Mitral valve area = diastolic flow ÷ %pressure gradient (Gorlin formula) Normal Mitral valve area 4.0-5.0 cm Symptomatic mitral stenosis 1.4-2.5 cm Critical mitral stenosis <1.0 cm [link to video clips for Congenital Stenosis, Rheumatic x 3 and Ruptured Chordae] 4. Natural History Mitral Stenosis Continuous progressive, life-long disease Slow, stable early course, latent period of 20-40 years from Rheumatic fever to onset of sypmtoms

20. CTSN--Mitral Valve Disease http://www.ctsnet.org/doc/5965

Back to CTSN Home Page Last revised 07/08/2000 http://www.ctsnet.org/residents/ctsn/ Comments to John Doty Last revised Sep-21-2001 Revised by Stephen H. McKellar

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