[Management of patients with myocardial infarction: The delays]
1Unité d'hémodynamique et de cardiologie interventionnelle, centre cardiopneumologique, CHU Pontchaillou, 35033 Rennes cedex, France. Herve.LeBreton@chu-rennes.fr
Insights
Early reperfusion therapy for myocardial infarction significantly reduces infarct size and mortality. Optimal management involves rapid diagnosis and treatment, prioritizing timely reperfusion strategies like primary angioplasty or fibrinolysis.
Area of Science:
- Cardiology
- Emergency Medicine
- Interventional Cardiology
Context:
- Myocardial infarction (MI) management hinges on timely reperfusion to limit myocardial damage.
- The therapeutic window for reperfusion therapy is well-defined within the first 12 hours, with debated benefits up to 24 hours.
- Delays in reperfusion, particularly for primary angioplasty, often exceed recommended times due to diagnostic and logistical challenges.
Purpose:
- To underscore the critical importance of early reperfusion in acute myocardial infarction.
- To highlight the factors contributing to management delays in reperfusion therapy.
- To advocate for optimized patient pathways and prehospital interventions.
Summary:
- Early reperfusion of the culprit artery in myocardial infarction patients demonstrably reduces infarct size and mortality.
- The choice between primary angioplasty and fibrinolysis is contingent upon the 'first medical contact-to-balloon inflation' time.
- Inefficiencies in diagnosis (atypical symptoms, ECG interpretation) and management circuits contribute to prolonged treatment delays.
Impact:
- Implementing a streamlined management protocol, including direct emergency call, early prehospital care, and direct cath lab transfer or prehospital fibrinolysis, can significantly improve patient outcomes.
- Reducing delays in reperfusion therapy is crucial for maximizing the benefits of treatments like primary angioplasty.
- This approach aims to minimize mortality and infarct size in patients experiencing acute myocardial infarction.
Abstract:
An early reperfusion of the culprit artery in patients with myocardial infarction leads to a reduction of the infarct size and mortality. The benefit of reperfusion (primary angioplasty or fibrinolysis) is well established in the first 12 hours following the symptom onset, remains discussed between 12 and 24 hours, is not documented beyond 24 hours. The choice of the method of reperfusion (primary angioplasty or fibrinolysis) depends on the estimated delay "first medical contact-balloon inflation" in case of primary angioplasty. The delay "first medical contact-balloon inflation" remains too often higher than recommended delay. The management delay could be due to diagnostic difficulties (atypical symptoms, EKG interpretation) or to the management circuit. The optimal management associates a direct call to centre 15, an early prehospital management, a direct transfer to the cath lab or a prehospital fibrinolysis.
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