Search PubMed⌕ Search

Biomedical subjects

J Di Matteo

Publications and source records attributed to J Di Matteo.

At least 55 records · Page 3Linked to original sources
PubMed1975

[Functional aortic systolic murmurs in the elderly].

The authors report a clinical and phonocardiographic study of functional aortic systolic murmurs in 26 elderly patients, in 19 of which the lesion was confirmed pathologically. Systolic murmurs radiating across the chest in elderly have the same clinical characteristics as aortic stenosis from which they may, however, be distinguished owing to the: absence of a thrill during systole. The brief duration and the proto-meso-systolic position of the murmur with early inscription of maximal oscillations on the phonocardiogram. Conversion of the second aortic sound. Almost constant absence of a diastolic murmur. Normal carotid arteriogram, including normal ejection time after correction and time of half rise. "Innocent" systolic murmurs are due to calcification of the aortic valve without stenosis, and/or dilatation of the ascending aorta. There is no systolic pressure gradient between the left ventricle and the aorta during cardiac catheterisation. No lesions were found in the mitral valve suggesting mitral incompetence, therefore, we consider the term mitro-aortic murmur used by Huchard should be dropped; Radiation of the murmur from the apex of the heart up into the neck may be explained by the simultaneous occurrence of anatomical changes due to age and/or hypertension and by the vibratory nature of the murmurs which become propagated above and below their origin, as shown by the intracardiac recordings.

Age Factors↗
PubMed1975

[Measurement of mean pulmonary pressures and right systolic ventricular pressure by radiocardiography].

Computer exploitation of some parameters of the radiocardiogram and of the pressures measured by catheterization in a series of 678 subjects, studied both in Paris and in Prague, has made it possible to establish regression equations providing the rates of mean pulmonary arterial and wedge pressures together with the systolic right ventricular pressure on the basis of the radiocardiogram data. The latter was obtained by the conventional technique of the isotope dilution curves or by gamma-angiocardiography. Easy repetition of radiocardiography makes it an interesting investigation for the haemodynamic follow-up of the patients with heart disease.

Barium↗
PubMed1975

[Unruptured aneurysms of Valsalva sinus of septal origin].

Aneurysms of Valvsalva sinus unruptured into a cavity, but developing into the membranous and even muscular interventricular septum are exceptional. Two cases illustrating this fact are reported. In one of them, a massive mitral incompetence by elongated chordae tendinae related to the presence of a voluminous intra-septal pouch. Atrio-ventricular and intraventricular conduction disturbances were present in both patients. The interest of supra-valvar angiography which makes it possible to advise operation before the eventual rupture is underlined.

Adult↗
PubMed1975

[Radioisotope measurement of coronary flow with atrial stimulation in the normal subject and in patients with coronary disease].

The induction of atrial systole by stimulation is a means of demonstrating insufficiency of myocardial perfusion, even where there is a normal coronary flow under basal conditions in a genuine case of coronary atherosclerosis. The method, which entailed the use of radiocardiography with potassium 42, was first checked for reproducibility. The coronary flow was then measured under basal conditions, and subsequently during or after atrial stimulation at 150/min. in a group of 50 controls and coronary patients. Under atrial stimulation, the value increases by an average of 15 per cent in the controls, and decreases by an average of 32 per cent in cardiac patients with vessels which are patent on coronary angiography. The coronary moiety of the cardiac output increases by an average of 27 per cent in the controls, but does not change significantly in the coronary group. After aorto-coronary by-pass, the coronary moiety of the cardiac output is increased significantly during stimulation when the by-pass is patent.

Adult↗