Mitral Valve Prolapse Research Paper

The four valves of the heart are the tricuspid valve, the pulmonic valve, the mitral valve, and the aortic valve. The tricuspid valve is located between the right atrium and the right ventricle. It is responsible for allowing blood to flow from the atrium to the ventricle, preventing backflow of blood into the atrium. The pulmonic valve is located between the pulmonary arteries and the right ventricle and is responsible for allowing blood flow from the heart to the lungs. The mitral valve is found between the left atrium and the left ventricle, which allow blood to flow from the left atrium into the left ventricle preventing backflow of blood back into the left atrium. The aortic valve is found between the aorta and the left ventricle and allows blood to flow to the aorta and throughout the body.

- The goals of treatment include a decrease in ventricular response (to less than 100 beats/minute), prevention of stroke, and conversion to normal sinus rhythm, if possible. To accomplish this, I would expect the health care provider to initially order drugs to control the ventricular rate, such as calcium channel blockers, beta-adrenergic blockers, digoxin, and dronedarone. For some patients, pharmacologic or electrical conversion of the atrial fibrillation to normal sinus rhythm may then also be considered, such as by using amiodarone or electrical cardioversion. If the atrial fibrillation lasts for longer than 48 hours, anticoagulation therapy will be needed for 3-4 weeks before the cardioversion and for weeks after as well. If drugs or cardioversion do not work, radiofrequency catheter ablation and the Maze procedure would be expected as further options.

The flow of blood through the heart is controlled by four valves. If any are not working correctly, blood cannot flow or be pumped effectively to the heart. The four valves are: the tricuspid, pulmonary semilunar, mitral, and aortic semilunar. There are many abnormalities or defects that can affect their operation and in this paper, I will discuss the most common one which is a “mitral valve prolapse.” A valvular prolapse is an abnormal protrusion of a heart valve that causes the valve to not close completely. It is also known as “click murmur syndrome” and “Barlow’s syndrome” and is more prevalent in women than men. It has a strong hereditary

When the left atrium is filled with blood, the heart contracts and the blood passes through the bicuspid valve and into the left ventricle.

Mitral valve prolapse (MVP) was first characterized by Barlow and Bosman in the 1960s.(Barlow and Bosman) It was first called Barlow’s Syndrome before being called mitral valve prolapse by Criley (Barlow and Bosman),(Criley et al.). Barlow’s syndrome was diagnosed by electrocardiogram, phonocardiogram and chest X-ray.3 The mitral valve apparatus includes tow leaflets, chordae tendineae, anulus, left atrium, papillary muscles and left ventricular wall (Devereux et al.). Mitral valve prolapse involves the leaflets, chordae, annulus and left ventricular wall.(Devereux et al.) The anterior leaflet is relatively long and semi-circular, while the posterior leaflet is shorter in normal patients.(Irvine et al.) Most commonly the posterior leaflet is affected.(Devereux et al.) During systole the leaflet balloons in to the left ventricle.(Devereux et al.) Physically, in a patient with mitral valve prolapse, the leaflet is displaced beyond the mitral anulus.(Levine et al.)

The mitral valve is located on the left side of the heart between the left atrium and left ventricle. The purpose of the mitral valve is to form a seal between these two chambers of the heart to prevent the back flow of blood. When blood enters the left side of the heart, it is oxygenated and enters through the pulmonary veins. The blood then travels through the left atrium; the bicuspid (mitral) valve then opens to let the blood flow down to the left ventricle. The left ventricle contracts, causing the mitral valve to close (preventing the backflow of blood).When the left ventricle contracts it is pumping the blood out to the remainder of the body. (Jenkins, 2007)

Although Mitral Valve Prolapse has existed for many years, there are a few facts a person should know while being diagnosed with this disease. Mitral Valve Prolapse is the most common valve abnormality in the U.S (Gillinov 517). About two to three percent of the population has Mitral Valve Prolapse (Gillinov 517). Of that percentage, very few need surgery due to a severe leak (Gillinov 326). If surgical treatment is necessary, a person receiving a non-surgical valve can most likely receive a 20 percent greater chance to live at least 1 year after treatment, compared to patients receiving medication alone (Gillinov 517). This means many people who were born or diagnosed with a valve problem can most likely be diagnosed with Mitral Valve Prolapse over any other heart valve disease. When a father or a mother has Mitral Valve Prolapse, this creates a very high chance when they have a child, the child will be born having

Mitral Valve Prolapse (MVP) is also knows as Barlow’s Syndrome or Click Murmur Syndrome and it affects about 2-6% of the United States population. While Mitral Valve Prolapse is one of the most common heart valve abnormality that can develop in any person at any age. It is usually not life-threatening and the patient might not even have symptoms. A patient might feel symptoms such as Fatigue, chest pain, or palpitations, which will cause a doctor to run tests such as an echocardiogram; causing a detection and confirmation of the Mitral valve prolapse. The MVP abnormality is caused when one or both of the mitral valve flaps are enlarged or have extra tissue. Causing the valve leaflets to not close correctly and allow leakage of blood back into

amount of fluid pressure quickly back through the lungs and causes right sided heart failure. Either sides of the

A heart murmur are harmless, healthy and don’t need a treatment. During a physical exam, doctors know that every child has a heart murmur and can hear the whooshing sound. There are some things that can be abnormal when it can be very damaged by the heart valve which 1/3 of the populations are born with valve problems. This condition is making the heart go faster than it normally would and it can be forced to have the blood goes faster. The causes are anemia, high blood pressure, thyroid, and a fever. Those causes can make the blood flow a lot faster, which can be dangerous if the problems are by the birth defect of the child. The valves open and close by four chambers, two on top and two on bottom. Stenosis, mitral prolapse, congenital, and

After the blood is received it is pumped through the right ventricle through the tricuspid valve. The tricuspid valve can be found in between the right ventricle and atrium, its main job is to contract to prevent blood from returning, and ensure that it is going the right direction. The blood continues to make its way to the lungs where it picks up oxygen and rids of carbon dioxide. Lastly, the ventricle pumps the blood to the lungs through the pulmonary valve. The pulmonary valve prevents blood from returning into the right atrium after the tricuspid valve relaxes. The pulmonary valve is a semilunar valve that has three cusps and is in between the right ventricle and the pulmonary artery.

Mitral Valve Prolapse is a common cardiac disorder, affecting two to three percent of the general population annually (Delling & Vasan, 2014). Mitral valve prolapse (MVP) is characterized by changes in the mitral leaflet tissue with displacement of the one or both leaflets into the left atrium of the heart. Because the leaflets do not close tightly to seal the valve, they are commonly referred to as being “floppy”. The mitral valve allows blood to flow from the left ventricle into the left atrium of the heart, and when the leaflets become floppy it can cause backflow of the blood, also known as regurgitation (Delling & Vasan, 2014). This backflow of blood, or regurgitation, causes a murmur or turbulent blood flow, which can be heard on auscultation.

HLHS is referred to as single ventricle. The abnormal mitral valve preventing the blood from entering the left ventricle as a result blood flow is then diverted across ASD and into the

Abstract: Cardiac myxomas are the most common primary tumors of the heart. Although these tumors have been reported in all cardiac chambers, myxomas arising from heart valves are extremely rare. Herein, we report a new case of a patient with mitral valve myxoma, as well as review 89 reported cases of these tumors in the literature. Mitral valve myxomas often occur in middle age patients, with slight female gender predominance. Most of these tumors arise in an isolated fashion on the atrial side of the anterior mitral valve leaflet. The embolic events were the most frequent manifestation, followed by obstructive symptoms. Unlike atrial myxomas,

Valvular stenosis is the hardening of the valves in the heart: mitral, tricuspid, pulmonary, and/or aortic. Stenotic valves are either too thick, stiff, or are fused together causing it to not open or close all the way like it normally should. This causes a decrease in blood flow to the next chamber of the heart. If one or more valves become diseased, pooling of blood in a chamber will occur, or the blood will leak