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E Parás Chavero

Publications and source records attributed to E Parás Chavero.

17 recordsLinked to original sources
PubMedDate not supplied

[Results of 1000 electrocardiographic exercise tests. Their correlation with previous ischemic cardiopathy and arteriosclerotic risk factors].

Exercise electrocardiograms were done on one thousand patients referred to the laboratory of exercise tests for: suggestive symptoms of acute heart failure, old miocardial infarction abnormal resting ECG, or evaluation of coronary reserve. The average value of cardiac rate reached for the group, was close to 80%. The maximum exercise loads managed by the men were superior to those of the women, and in general those managed in the negative test were superior in relation to the positive tests. Of the one thousand cases, 20.2% had positive exercise ECG's. There was no difference inthe percentages of positivity between the two sexes, 20.75% and 19.11% for men and women respecitvely. The percentages of positivity are greater in those subjects sent to the laboratory for suspicion of angina pectoris, old MI, or abnormal resting ECG, than in those referred for detection of ischemic heart disease. The groups of patients with diabetes mellitus, arterial hypertension, old MI, and abnormal resting ECG had the highest incidence of positive tests: 41%, 37.5%, 30.6%, and 28.2% respectively. The most frequent localization of the ST segment alterations was the anterior portion, with percentages of 85.1% similar to those mentioned in the literature. The frequency of arrithmias, of 12.4% in this group, is a little less than that described in similar groups, but it corroborates the predominance of non-lethal ventricular arrithmias. The mortality in the tests performed was null.

Adult↗
PubMedDate not supplied

[Sudden death].

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Cardiovascular Diseases↗
PubMedDate not supplied

[Correlation between findings of exertion ECG with 12 derivations and coronoriography].

A coronary angiography was taken to 80 patients whose twelve leads exercise ECG had been found positive. This group included 38 patients with old myocardial infarction and 42 with coronary insuficiency. When looking for a relation between: 1. The amount of positivity in the exercise ECG and the number on injured vessels, and 2. the ischemia located in the effort test and the blocked vessels shown by the angiography. We found a reasonable relation between the exercise ECG and the severity of the injuries. This co-relation is of 100% between the old infarction area and the severe or total obstruction of the corresponding vessel. It was observed then, that a close relation exists between the ischemia area and the obstructive injuries. In a second group of 15 patients we failed to find atero sclerotic injuries in the corresponding vessel, but observed some vascular anomalies which explained the ischemia. The effort test with twelve leads exercise ECG makes easier the localization of obstructions, single or multiple, on the area supposedly affected.

Angiocardiography↗
PubMedDate not supplied

[Sudden death in the long term development of ischemic cardiopathy].

During five years or until death, we had under observation 74 patients who survived the acute phase of myocardial infarction, 66 patients with angor inestable, and a third group, also of 66 patients of the coronary unit, but whose cases didn't show evidence of their illness being due to myocardial infarction. The general features were similar in the three groups. The patients outliving myocardial infarction reached 69%; those surviving angor inestable, reached 79%, and the survivors of the no-coronary group, 92.5%. There were not significant differences among the three groups in mortality rate due to non cardial illnesses. The differences are in relation with sudden death; in the first groups, 14.8%, 10.6% in the second group, and only 1.5% in the third one. In the coronary groups half the total mortality was due to sudden death. Death was instantaneous in 26% of the cases and 52% occurred in less than two hours. All of these sudden deaths occurred out of the Hospital. Patients with antecedents of previous myocardial infarction showed from 3 to 6 more sudden deaths than those patients suffering a first myocardial infarction. The myocardial infarction patients who developed cardiomegaly afterwards registered two and a half more sudden deaths than those without cardiomegaly. Differences were highly significant; 28.5% sudden deaths in those patients with cardiomegaly and 8.4% in patients without cardiomegaly. These results show that the higher rate of sudden deaths is due to a more extensive myocardial damage. Arterial hypertension also constitutes and important risk of sudden death, even when it is properly controlled after the acute period.

Angina Pectoris↗
PubMedDate not supplied

[Clinico-echocardiographic analysis in 40 patients with acute myocardial infarction].

Fourty patients with acute myocardial infarction were studied by M-mode echocardiography. A significant correlation was established between the electrocardiographic localization of the infarction and the decreased motion of the left ventricular walls. Even when a significant correlation was present between decreased ventricular function and heart failure in anterior myocardial infarction, this was not found in the inferior and posterior wall myocardial infarction. In practice these findings should be accepted cautiously. Our findings show the high frequency of pericardial effusion in acute myocardial infarction. In spite of its limitations, the echocardiogram may be useful in the clinical assessment of patients with acute myocardial infarction, specially when it is anterior, or when complications are suspected.

Adult↗