mitral regurgitation


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Related to mitral regurgitation: mitral stenosis, mitral valve prolapse, aortic regurgitation, Tricuspid regurgitation

regurgitation

 [re-ger″jĭ-ta´shun]
1. a backward flowing; see also backflow and reflux.
aortic regurgitation backflow of blood from the aorta into the left ventricle, owing to insufficiency of the aortic valve; it may be chronic or acute.
mitral regurgitation backflow of blood from the left ventricle into the left atrium, owing to insufficiency of the mitral valve; it may be acute or chronic, and is usually due to mitral valve prolapse, rheumatic heart disease, or a complication of cardiac dilatation.
pulmonic regurgitation backflow of blood from the pulmonary artery into the right ventricle, owing to insufficiency of the pulmonic valve.
tricuspid regurgitation backflow of blood from the right ventricle into the right atrium, owing to imperfect functioning (insufficiency) of the tricuspid valve.
valvular regurgitation backflow of blood through the orifice of one of the heart valves owing to imperfect closing of the valve (valvular insufficiency); see aortic, mitral, pulmonic, and tricuspid regurgitation.

mi·tral re·gur·gi·ta·tion (MR),

reflux of blood through an incompetent mitral valve.

mitral regurgitation

n.
The backward flow of blood from the left ventricle into the left atrium of the heart, caused by incompetent closure of the mitral valve. Also called mitral insufficiency.

mitral regurgitation

a backflow of blood from the left ventricle into the left atrium in systole across a diseased mitral valve. The condition may result from congenital valve abnormalities, rheumatic fever, mitral valve prolapse, endocardial fibroelastosis, myocarditis, myocardiopathy, or dilation of the left ventricle as a result of severe anemia. Symptoms include dyspnea, fatigue, intolerance of exercise, systolic murmur, and heart palpitations. Congestive heart failure may ultimately occur. Treatment depends on the severity of the condition. Surgery may be necessary in cases of refractory congestive heart failure, progressive cardiomegaly, and pulmonary hypertension. Also called mitral insufficiency. See also valvular heart disease.

mitral regurgitation

Chronic mitral valve regurgitation, mitral insufficiency Cardiology Backflow of blood from the left ventricle to the left atrium due to a defective mitral valve, which ↓ forward flow of blood and ↑ work by heart to pump more blood to compensate for inefficiency; acute MR may be due to valve dysfunction or injury post MI or infectious endocarditis, which may cause rupture of the valve, papillary muscle, or chordae tendineae–which anchor the valve cusps, resulting in valve leaflet prolapse into the atrium, leaving an opening for the backflow of blood; chronic MR is prolonged and progressive, and often associated with mitral valve prolapse, characterized by weakening and ballooning Etiology Rheumatic heart disease–thickening, rigidity, retraction of mitral valve leaflets; ASHD, HTN, left ventricular enlargement, connective tissue disorders–eg, Marfan syndrome, congenital defects, endocarditis, heart tumors, late syphilis, untreated acute MR. See Mitral valve.

val·vu·lar re·gur·gi·ta·tion

(val'vyū-lăr rĕ-gŭr'ji-tā'shŭn)
A leaky state of one or more of the cardiac valves, in which the valve does not close tightly and blood therefore regurgitates through it.
Synonym(s): valvular insufficiency.

mitral

shaped like a miter; pertaining to the mitral valve.

mitral area
that area of the thoracic wall through which sounds of the mitral valve can best be auscultated; generally the lower one-third of the mid- to anterior left thorax.
mitral atresia-hypoplastic left heart syndrome
defects in the development of the mitral valve, left heart and aortic valve, which occur rarely in cats.
mitral complex
includes the leaflets, annulus, chordae tendineae and papillary muscles of the mitral valve, left atrium and left ventricular muscle wall.
mitral insufficiency
a functional incompetence resulting in regurgitation of blood from the left ventricle to the left atrium during systole or from the great vessels into the left atrium during diastole.
mitral regurgitation
see mitral insufficiency (above).
mitral valve
the left atrioventricular valve, the valve between the left atrium and the left ventricle of the heart; it is composed of two cusps, anterior and posterior. Called also the bicuspid valve.
mitral valve prolapse (MVP)
a condition in which some portion of the mitral valve is pushed back too far during ventricular contraction. Often a complication of mitral endocardiosis.

Patient discussion about mitral regurgitation

Q. what do you do with a broken heart? I HAD A ECHO DONE THIS WEEK AND CONCLUSION WAS: 1)SEVERE MIRTAL REGURGITATION WITH LEFT ATRIAL DILATATION 2)LOW NORMAL LV FUNCTION CHEST X RAY IMPRESSION WAS: 1)NORMAL SIZE HEART WITH PROMINENT LEFT HEART BORDER. 2)PROMINENT MARKINGS WITH PROMINENT CHANGES. 3)THE BONES ARE OSTEOPENIC. BLOOD TEST....CHEMISTRY B TYPE NATRIURETIC PEPTIDE HIGH 260

A. The left atrial dilatation is likely the cause of the elevated beta natriuretic peptide. A cardiologist should be able to talk with you about dealing with the mitral valve regurgitation.

More discussions about mitral regurgitation
References in periodicals archive ?
This case report not only highlights a rare cause of mitral regurgitation but also illustrates the applicability of basic principles and tools of mitral valve repair in correcting this anomaly with excellent hemodynamic results.
Reshaping of the mitral annulus to eliminate Mitral Regurgitation (MR) is done under physiological conditions and echocardiographic guidance for optimal results.
Multiple trials, published reports, and registries of patients treated with the MitraClip device consistently demonstrate a positive safety profile, reduction in mitral regurgitation, improvement in symptoms, and reduction in hospitalizations for heart failure, even in some of the most ill and debilitated patients.
Intraoperative TOE grade of residual mitral regurgitation (MR) following mitral valvuloplasty is believed to accurately predict postoperative grade of MR measured by transthoracic echocardiography (TTE), both early and late after the operation (4).
The implant is designed to be positioned, adjusted, and gently anchored in the coronary sinus/great cardiac vein (GCV) to reshape the annulus around the mitral valve to reduce mitral regurgitation.
Acker's subanalysis focused on the 193 trial participants with severe mitral regurgitation who underwent MV surgery plus randomization to the CSD or medical therapy alone: 84% of the MV operations were valve repairs, and the rest were replacements.
2) In the case described herein, a patient with mitral regurgitation initially had unilateral pulmonary infiltrates that were seen on x-ray films, and pulmonary edema developed soon after delivery.
Acute mitral regurgitation is a disorder in which the heart valve does not close properly, causing blood to leak back into the left atrium.
Degenerative mitral regurgitation occurs when the leaflets of the heart's mitral valve do not close properly, usually due to rupture or elongation of the chordae tendinae (chords) that control the leaflets' motion.
The approach, in which the Boston Scientific Lotus Valve is deployed inside the MValve docking system, is designed to enable the treatment of mitral regurgitation in a broad range of patients, and to improve long-term clinical outcomes in this patient population.
After visiting her doctor, the 89-year-old was diagnosed with degenerative mitral regurgitation (DMR), a heart condition in which the leaflets of the mitral valve do not close completely, causing blood to flow backward and leak into the left atrium of the heart.