Apex cardiogram and systolic time intervals in acute myocardial infarction.

Apex cardiogram and systolic time intervals in acute myocardial infarction and effects of practolol.

Value of systolic and diastolic time intervals. Studies in normotensive and hypertensive 50-year-old men and in patients after myocardial infarction.

SUmAMRY Systolic and diastolic time intervals were studied non-invasively in a group of untreated hypertensives (n = 19) and a reference group (n = 36), all derived from a random population sample of 50-year-old men, and in a myocardial infarct group (n = 67) representative ofmen aged 48 to 57 years surviving infarction. The results showed that only the electromechanical interval, pressure rise...

Myocardial damage of the entire ventricular region in a patient with acute myocardial infarction

Technetium-99m-pyrophosphate (99mTc-PYP) has been used, in combination with thallium-201, to estimate the site and extent of myocardial infarcts. We report a case of acute myocardial infarction with severe coronary disease in which the distribution of 99mTc-PYP was extensive. A 78-year-old man presented with dyspnea, and a diagnosis of non-ST-segment elevation acute myocar...

Clinicopathological study in an ovine model of experimental acute myocardial infarction

To evaluate the prognostic significance of clinicopathological measurement in the diagnosis of acute myocardial infarction (MI) in sheep, acute MI was induced by ligation of left anterior descending coronary artery (LAD). For this purpose, twenty four healthy sheep were divided into the sham-operated or control group (group I, thoracotomy without MI) and the experimental group (group II, with M...

The apex cardiogram in left bundle-branch block.

The apex cardiogram and its relation to intracardiac events has been well studied (Benchimol and Dimond, 1963; Tafur, Cohen, and Levine, 1964; Tavel et al., 1965; Coulshed and Epstein, 1963). This simple clinical procedure can be used to determine the length of isovolumic contraction, and this may relate to the state of myocardial contractility (Sambhi, 1960; Reeves et al., 1960; Siegel and Son...