Biomedical subjects
Publications and source records attributed to A Ramondo.
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In 86 subjects wiht healed myocardial infarction the reliability of cardiothoracic ratio (C/T), of the left half-diameter (EDTS/m2) and of the overall subjective evaluation of a standard chest X-Ray plate has been tested by comparison to quantitative data drawn by selective cineventriculography. C/T and EDTS/m2 are scarcely reliable, whereas subjective evaluation allowed a separation among different groups of patients, though with wide overlap. Right anterior oblique and lateral views, and the evaluation of the third aortic arch were more useful than left anterior oblique and lowered apex.
16 cases of left ventricular-right atrial communication are reported. The most consistent clinical features, suggestive of this condition, were: auscultatory findings of V.S.D., electrocardiographic patterns of right atrial enlargement and biventricular hypertrophy, considerable right atrial enlargement coexisting with signs of left-sided cardiac enlargement and increased polmonary vascularity to Xray examination, echocardiographic fluttering of the tricuspid valve. Cardiac catheterization revealed an increased oxygen content in the right atrial or ventricular blood without the passage of the catheter through an A.S.D. The definitive diagnosis was established by left ventricular angiocardiography which demonstrated immediate opacification of a dilated right atrium through a septal defect; the location of the septal defect in the cardiac septum was attempted. In patients who suffered from a large left to right shunt were recommended for surgical treatment also in view of the relatively bad tolerance of this defect and low operative risk. There were two deaths: one baby died of early congestive failure. 9 cases were operated upon with one immediate postoperative death. The remaining, controlled by clinic follow-up, had good results.
75 patients with isolated mitral stenosis were studied. Particular attention was paid to the integration of the parametres VTD, FE, mitral area, pulmonary artery pressure and dynamic systolic and diastolic geometry of the left ventricle. The existence of isolated MS with alteration of the left ventricular function not depending on the alterations of the preload and the forms with raised FE, was demonstrated. A classification into 6 groups was made, each characterized by special geometric modalities of contraction and relaxation. A significant compensation of several of the parametres of systolic mecanism (hyperkinesia) and diastolic (SERP) dynamic geometry was observed. It was therefore concluded that a more precise definition of the interaction of ventricular function with left atrial function is necessary.
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An isolated ventricular diverticulum in an adult patient investigated for chest pain is reported. An exhaustive diagnosis was obtained by different means and complementary imaging techniques such as echocardiography, cardiovascular magnetic resonance imaging and cineangiography.