[ACE-inhibitors in acute heart infarct]
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Updated: Nov 5, 2026

Acute Myocardial Infarction in Rats
Published on: February 16, 2011
Abstract:
The use of ACE-inhibitors in heart failure has been established over the past years. Their use is of uncertain value in the early phases of myocardial infarction, where they are supposed to prevent left ventricular dilatation. More recent studies (ISIS-4, GISSI-3) have tested early treatment by ACE-inhibitors in the acute phase of myocardial infarction. On one hand, it was possible to disprove reservations about risks (hypotension)n in a large cohort; on the other hand, a further reduction of mortality in hospitalized patients by 7% has been shown, corresponding to five patient lives saved for 1000 treated patients. Thus, after institution of the customary therapy of myocardial infarction (inhibitor of platelet aggregation, thrombolysis, beta-blocker) and after exclusion of specific contraindications (hypotension < 100 mmHg, renal failure) ACE-inhibitors could be administered in the acute phase of myocardial infarction. An analysis of the results from these large trials will show whether ACE-inhibitors may benefit groups of patients at particular risks (Killip > 1, age > 70 years, preceding renal failure) noticeably. ACE-inhibitors remain the treatment of choice in patients with developing left ventricular failure.
Insights
Early treatment with ACE-inhibitors in acute myocardial infarction reduces mortality by 7%. These angiotensin-converting enzyme inhibitors are now recommended alongside standard therapies, excluding specific contraindications.
Area of Science:
- Cardiology
- Pharmacology
Context:
- Established use of ACE-inhibitors in heart failure.
- Uncertainty regarding early ACE-inhibitor use in acute myocardial infarction (MI) for preventing left ventricular dilatation.
Purpose:
- To evaluate the efficacy and safety of early ACE-inhibitor treatment in the acute phase of myocardial infarction.
- To assess the impact of ACE-inhibitors on mortality and identify high-risk patient groups benefiting from this intervention.
Summary:
- Large trials (ISIS-4, GISSI-3) demonstrated that early ACE-inhibitor administration in acute MI is safe, dispelling concerns about hypotension.
- A 7% reduction in mortality was observed, translating to five lives saved per 1000 treated patients.
- ACE-inhibitors can be administered after standard MI therapy (antiplatelets, thrombolysis, beta-blockers) if contraindications like severe hypotension or renal failure are absent.
Impact:
- ACE-inhibitors are recommended in the acute phase of MI, following customary therapies and contraindication assessment.
- Further analysis will clarify benefits for high-risk populations (Killip > 1, age > 70, prior renal failure).
- ACE-inhibitors remain the primary treatment for patients developing left ventricular failure post-MI.
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