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[Early diagnostic possibilities in heart failure in myocardial infarct]
Insights
Early diagnosis of cardiac insufficiency in myocardial infarction patients is possible by comparing hemodynamic and contractility parameters with predicted values. This helps identify reduced cardiac output and heart contractility early in the illness.
Area of Science:
- Cardiology
- Physiology
Background:
- Myocardial infarction (MI) can lead to cardiac insufficiency.
- Early detection of cardiac insufficiency is crucial for patient outcomes.
Purpose of the Study:
- To compare hemodynamic and myocardial contractility parameters with predicted values in patients with myocardial infarction.
- To assess the utility of these comparisons in the early diagnosis of cardiac insufficiency.
Main Methods:
- Collected hemodynamic and myocardial contractility data from 57 patients on various days of myocardial infarction.
- Calculated predicted values considering oxygen utilization, arterial pressure, and heart rate.
- Compared measured parameters against predicted values.
Main Results:
- The majority of myocardial infarction patients exhibit insufficient cardiac output and myocardial contractility from day 1-2 of illness.
- Stress-induced parameter values in acute MI patients can exceed those in stable ischemic heart disease patients at rest.
- Significant deviations from predicted values indicate early-stage cardiac insufficiency.
Conclusions:
- Comparing hemodynamic and contractility parameters with predicted values is vital for early diagnosis of cardiac insufficiency in myocardial infarction.
- This method aids in identifying patients with compromised cardiac function during the acute phase of MI.
Abstract:
In 57 patients on different days of myocardial infarction a comparison of haemodynamic and myocardial contractility parameters was made with their predicted values which were calculated with due consideration of oxygen utilization, arterial pressure and the heart rate. It is established that the majority of patients with myocardial infarction have insufficiency of cardiac output and of contractile activity of the heart beginning with the 1-2d day of illness. At the same time, absolute values of the parameters, stress-caused, can exceed the analogous parameters in patients with ischaemic heart disease outside the period of exacerbation, at rest. It is concluded that the comparison of figures of haemodynamics and contractility with the predicted values constitute an important part in the early diagnosis of cardiac insufficiency.