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[Changes in myocardial contractile function and in the hemodynamic indices in patients with myocardial infarct before
Insights
Beta-blockers like Obsidan and Trasicor reduce cardiac output and slow blood flow in acute myocardial infarction patients. Careful evaluation is needed, especially with heart failure, alongside cardiotonic support.
Area of Science:
- Cardiology
- Pharmacology
Background:
- Acute myocardial infarction (AMI) significantly impacts hemodynamic indices.
- Cardiac cycle phase structure is crucial for assessing left ventricular function.
Purpose of the Study:
- To investigate the effects of beta-blockers (Obsidan, Trasicor) on hemodynamics and cardiac cycle phases in AMI patients.
- To evaluate the safety and efficacy of beta-blocker therapy in this patient group.
Main Methods:
- Hemodynamic monitoring before and after beta-blocker administration.
- Analysis of cardiac cycle phase structure in patients with acute myocardial infarction.
Main Results:
- Beta-blocker treatment led to decreased pulse rate and cardiac flow.
- Total peripheral resistance increased, and blood flow velocity decreased.
- Negative impact observed on the left ventricle's phase structure.
Conclusions:
- Beta-blocker use in AMI requires cautious clinical evaluation.
- Concurrent cardiotonic treatment is recommended for patients with signs of cardiac insufficiency.
Abstract:
The changes in the basic hemdynamic indices and in the phase structure of the cardiac cycle in patients with acute infarction prior to and post treatment with beta-blockers (Obsidan and Trasicor) were studied. Manifested changes in the hemodynamics were established, namly: pulse rate and cardiac flow decrease, the total peripheral resistance grows; veloqcilty of blood flow is slowed down. The preparations used have a negative effect upon the phase structure of left ventricle as well. The authors underline that beta-blockers administration in acute myocardial infarction should be evaluated very carefully and in the presence of clinical signs for cardiac insufficiency, it should be carried out on the background of cardiotonic treatment.