Chronic Mitral Regurgitation
Mostrando 13-23 de 23 artigos, teses e dissertações.
-
13. Mildly symptomatic chronic mitral regurgitation. Analysis of left ventricular systolic function and mitral regurgitant fraction under pharmacological influence: echocardiographic study
OBJECTIVE: To study echocardiographic parameters of left ventricular systolic function and valvar regurgitation under pharmacological influence in mildly symptomatic patients with chronic mitral regurgitation (MR). METHODS: We carried out a double-blind placebo controlled study in 12 patients with MR, mean aged 12.5 years old, who were randomized in 4 phases
Arquivos Brasileiros de Cardiologia. Publicado em: 2003-02
-
14. Do Vasodilators Interfere with Left Ventricular Remodeling in Chronic Mitral Regurgitation?
Arquivos Brasileiros de Cardiologia. Publicado em: 2002-09
-
15. Mitral regurgitation determined by radionuclide cardiography: dependence on posture and exercise.
OBJECTIVES--To evaluate dependence of posture and exercise on the degree of mitral regurgitation using combined first pass and equilibrium radionuclide cardiography. DESIGN--24 patients with clinically stable chronic mitral regurgitation and sinus rhythm were studied by first pass list mode and simultaneous multigated frame mode equilibrium radionuclide card
-
16. Effects of chronic beta-adrenergic blockade on the left ventricular and cardiocyte abnormalities of chronic canine mitral regurgitation.
The mechanism by which beta blockade improves left ventricular dysfunction in various cardiomyopathies has been ascribed to improved contractile function of the myocardium or to improved beta-adrenergic responsiveness. In this study we tested two hypotheses: (a) that chronic beta blockade would improve the left ventricular dysfunction which develops in mitra
-
17. Chordal rupture. I: aetiology and natural history.
Between 1970 and 1981, 12% of patients undergoing mitral valve surgery were found to have chordal rupture. Spontaneous or primary rupture accounted for 74.6% of patients (primary group); in the remainder (secondary group) chordal rupture complicated chronic rheumatic valvular disease (8.9%), bacterial endocarditis on both normal (8.5%) and rheumatic valves (
-
18. Calcific stenosis of a mitral valve xenograft in a patient in chronic renal failure.
A 61 year old man presented with mitral regurgitation and glomerulonephritis caused by suspected infective endocarditis. His glomerulonephritis remitted on immunosuppression but mitral valve replacement with a Carpentier-Edwards porcine xenograft later proved necessary. The patient became dialysis dependent and cadaveric renal allografting was complicated by
-
19. Aortic and mitral valve disease in patients with end stage renal failure on long-term haemodialysis.
OBJECTIVE--To identify valvar heart disease in patients with chronic uraemia by conventional and colour coded Doppler echocardiography. DESIGN--Case series of an unselected group of 62 patients with end stage renal failure. SETTING--Centre for haemodialysis in a referral hospital in Switzerland. PATIENTS--62 patients on chronic haemodialysis. MAIN OUTCOME ME
-
20. Mitral valve annuloplasty: results in an underdeveloped population.
The long term results of mitral valve annuloplasty for pure mitral regurgitation are assessed. Thirty-three of the 100 patients (mean age 16 years) had acute rheumatic carditis at the time of operation. Three basic techniques were used: measured asymmetrical annuloplasty (Reed) in 37 patients, posterior plication annuloplasty in 56, Carpentier ring in seven.
-
21. Stress echocardiography in heart failure
Echocardiography has the ability to noninvasively explore hemodynamic variables during pharmacologic or exercise stress test in patients with heart failure. In this review, we detail some important potential applications of stress echocardiography in patients with heart failure. In patients with coronary artery disease and chronic LV dysfunction, dobutamine
BioMed Central.
-
22. Relation between mitral valve closure and early systolic function of the left ventricle.
In order to investigate relations between mitral valve closure and mechanical events at the onset of left ventricular systole, simultaneous M mode echocardiograms and phonocardiograms were recorded with the apexcardiogram and its first differential (dA/dt) in 25 normal subjects and 88 patients with heart disease. The timing of mitral and aortic valve closure
-
23. Assessment of atrioventricular conduction in aortic valve disease.
To determine the frequency of atrioventricular conduction disturbances in aortic valve disease, 26 consecutive patients (age 54 +/- 2 years) with symptomatic aortic valve disease were studied by His bundle electrocardiography at the time of cardiac catheterisation and were compared with a group of patients who underwent cardiac catheterisation and were found