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Updated: Aug 12, 2026

Real-time Pressure-volume Analysis of Acute Myocardial Infarction in Mice
Published on: July 2, 2018
[Digitalization for acute myocardial infarction: haemodynamic changes in patients with heart failure at rest
Insights
Early digitalization improves heart function in heart attack patients with heart failure. Administering digoxin or beta-methyldigoxin in the initial days post-infarction enhances haemodynamics, reducing filling pressures and increasing stroke volume.
Area of Science:
- Cardiology
- Pharmacology
Background:
- Acute myocardial infarction frequently leads to heart failure.
- Early intervention is crucial for managing post-infarction complications.
Purpose of the Study:
- To evaluate the haemodynamic effects of early digitalization in patients with acute myocardial infarction and heart failure.
- To assess the impact of beta-methyldigoxin and digoxin on cardiac contractility and overall haemodynamics.
Main Methods:
- Intravenous administration of 0.4 mg beta-methyldigoxin or 0.4 mg digoxin daily.
- Haemodynamic measurements taken on days 1-4 post-infarction in 42 patients.
- Monitoring of filling pressures, stroke volume, and arterial blood pressure.
Main Results:
- Digitalization led to a reduction in filling pressures.
- Stroke volume increased, indicating improved cardiac contractility.
- Arterial blood pressure remained stable, suggesting a favorable haemodynamic profile.
Conclusions:
- Early digitalization in the acute phase of myocardial infarction can lead to sustained improvements in haemodynamics.
- The findings support the early use of digoxin or beta-methyldigoxin in patients experiencing heart failure after a heart attack.
Abstract:
Haemodynamic changes after intravenous administration of 0.4 mg beta-methyldigoxin or 0.4 mg digoxin daily were measured on the first to fourth day in 42 patients in heart failure after onset of transmural myocardial infarction. Regular reduction in filling pressure and increased stroke volume while arterial blood pressure remained unaltered pointed to improved contractility. Digitalization in the first few days after infarction achieved sustained tendency towards improved haemodynamics. It is concluded that early digitalization is indicated in patients with acute myocardial infarction if there are signs of heart failure.
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