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[Acute myocardial infarct and nitrogen balance]
Wiener Klinische Wochenschrift
|September 16, 1983
Summary
Patients with acute myocardial infarction exhibit negative nitrogen balance, indicating increased protein breakdown. This negative nitrogen balance correlates with hemodynamic instability, highlighting the need for nutritional support in severe cases.
Area of Science:
- Cardiology
- Nutritional Science
- Metabolic Studies
Context:
- Acute myocardial infarction (AMI) is a critical cardiovascular event.
- Understanding the metabolic response to AMI is crucial for patient management.
- Nitrogen balance reflects protein metabolism and catabolism.
Purpose:
- To assess nitrogen balance in patients with acute myocardial infarction.
- To compare nitrogen balance between AMI patients and those with unstable angina.
- To investigate the correlation between nitrogen balance and hemodynamic parameters in AMI.
Summary:
- Nitrogen balance studies were conducted over 6 days in 20 AMI patients and 10 unstable angina controls.
- AMI patients showed significantly higher nitrogen excretion (13.9 g/d) compared to controls (8.9 g/d), indicating a catabolic state.
- Complicated AMI cases had even higher nitrogen excretion (15.6 g/d).
- Nitrogen excretion correlated with hemodynamic severity and admission blood glucose levels.
- No significant difference in nitrogen excretion was observed between diabetic and non-diabetic AMI patients.
Impact:
- This study underscores the significant catabolism associated with acute myocardial infarction.
- Findings emphasize the critical role of nutritional support, particularly parenteral nutrition, for patients with complicated AMI and heightened catabolism.
- Results provide insights into metabolic derangements following myocardial infarction, guiding clinical nutrition strategies.