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Biomedical subjects

P Botreau-Roussel

Publications and source records attributed to P Botreau-Roussel.

12 recordsLinked to original sources
PubMed1978

[Paradoxical displacement of the interventricular septum with impairment of filling of the left ventricle. Echocardiographic and hemodynamic diagnosis. Apropos of 3 cases].

An unusual type of displacement of interventricular septum, the inverse of that found normally, was found by echocardiography in 3 cases: 2 with pulmonary arterial hypertension and 1 with constrictive pericarditis. In two cases catheterisation showed the haemodynamic picture of mitral obstruction, and in 1 case the typical findings on auscultation of mitral stenosis were present. The echocardiogram and anatomical studies showed that the mitral valve was normal. The obstruction was due to displacement of the septum towards the left ventricle during diastole. Because of this displacement, the septum came into contact with the mitral valve, and caused impairment of the filling of the left ventricle.

Adult↗
PubMed1977

[Myocardial infarction and heterozygous sickle cell anemia. Apropos of 2 cases].

Thromboses are a classical complication of sickle cell disease in the severe homozygous form. In the heterozygous individual, although the risk of severe thromobotic episodes is small, it must nevertheless be recognised. The authors report two cases of myocardial infarction in patients whose coronary arteries were relatively free from atherosclerosis; they were young men, with the heterozygous form of sickle cell disease AS. The part played by inheritance, the factors favouring vascular occlusion, and the possibility of preventing such episodes are all discussed.

Adult↗
PubMed1977

[Echocardiographic study of the left ventricle in aortic insufficiency. Comparison with the data of clinical development and hemodynamic results].

A series of 20 patients with pure and severe major aortic incompetence was studied, and three different groups were distinguished: group I, with no previous defect in function; group II, with cardiac failure as a result of aortic incompetence of more than 5 years' standing; group III, with cardiac failure secondary to acute aortic incompetence. The internal diameter of the left ventricle and the mode of closure of the mitral valve were studied by echocardiography, and compared with the clinical and haemodynamic findings. Left ventricular dilatation appeared early, and occurred to the same degree in the three groups. The diastolic diameter of the left ventricle showed a fairly close correlation (r equals 0.61) with the degree of regurgitation as measured from clour dilution curves; by contrast, the length of time the aortic incompetence had been present had little influence on the degree of dilatation of the left ventricle. Premature closure of the mitral valve was significantly associated with a raised LVEDP and a low systolic index; it represents a defect in the compliance of the left ventricle, and is a poor prognostic factor because of the clinical progression into very rapid and severe heart failure. Moreover, there is a distinct aetiological factor (Infective endocaditis) in the most marked forms of premature closure. The other ecocardiographic findings (appearances of the aorta, mitral echo, slope EF of the mitral valve) give no information on the degree of tolerance to the cardiac defect.

Adult↗