1,720,983 research outputs found
[Correlation between results of bicycle stress test and coronaric arteriography. Study of 153 patients (author's transl)]
No full textIn 153 patients the results of bicycle stress test were compared with data obtained from coronaric arteriography. There were corresponding results from both tests in most cases. There are other discrepancies which cannot be explained by defining the stress test as "unspecific" or "not very sensitive". In fact, each time, time differences can be referred, besides method limits, to particular physio-pathological stages of the coronaric disease (collateral circulation, Prinzmetal angina) or they can be considered completely independent of the coronaric disease (myocardial disease without coronaric disease, enzymatic defects; haemoglobinic alterations, etc.). The two tests have different indications, but they can also complementary information
[Changes in ischemic mitral insufficiency induced with perlingual trinitroglycerin (TNG)]
No full text[Polygraphic studies in ischemic heart disease. Correlation with the findings of left cineventriculography]
No full text[Day and night changes in arterial pressure in hospitalized hypertensive patients. Study by means of an intra-arterial microcatheter]
No full text[Thoracic pain and dyssynergia of the left ventricle in rheumatic valvulopathies. Correlation with coronary arteriography in 131 patients]
No full text[Morpho-functional changes of left ventricle produced by sublingual nitroglycerin (author's transl)]
No full textTwo successive left ventriculargraphs [in basal conditions and after Nitroglycerin (TNG)] were performed with the same technical procedures in 20 patients before coronary arteriography. End-diastolic and end-systolic volumes and ejection fraction were studied following Greene's modified method. Diastolic and systolic ventricular projected images were divided into four zones and their variations were evaluated after TNG. Two patients did not show any significant abnormality (pseudoangor); two others suffered from cardiomyopathy (myocardosis) with mitral regurgitation and no coronary artery disease; two had restrictive cardiomyopathy. Fourteen had a coronary artery disease: seven of them had signs of end-systolic mitral regurgitation. End-diastolic and end-systolic volumes decreased and ejection fraction increased after TNG in all of these cases except in the two suffering from cardiomyopathy (ESV increased and EF decreased). Mitral regurgitation disappeared in all of them. In patients with coronary artery disease and mitral regurgitation the volume variations were slighter, and the increase of EF was larger than in the other cases. Finally, a decrease in asynergic and hypokinetc zones was observed, whereas no variations were seen in diskinetic zones. TNG can improve left ventricular kinetics by decreasing the pre-load, the after-load and myocardial oxygen consumption. Demonstration of this improvement could be of prognostic value
[Regional kinetics of the left ventricle with regard to the development of anastomotic circulation in coronary disease patients]
No full text[Coronary hypoplasia: clinical, electrocardiographic and coronarographic correlations in 13 cases]
No full text
Prinzmetal's variant angina: clinical, angiographic and pathologic correlations in two typical cases
No full textECG and cinecoronary angiography of two patients with Prinzmetal's variant angina are reported. A pathologic study was performed on both. In one case, a transient luminal obstruction of the left circumflex coronary artery became apparent during selective coronary arteriography. Histologic examination of the corresponding coronary segment revealed a severe concentric atherosclerotic process with a normal-sized muscular layer, so that the angiographic transient occlusion might be attributed to an arterial spasm. In the second case no angiographic narrowings were demonstrated by cinecoronary angiography. Nevertheless, histologic examination revealed significant obstructive atherosclerotic narrowing in some coronary segments. It is suggested that atherosclerotic disease may be present also in cases with variant angina who have apparently normal coronary angiograms
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