Lower long-term mortality within a regional system of care for ST-elevation myocardial infarction
Francesco Saia1, Cinzia Marrozzini, Paolo Guastaroba
1Istituto di Cardiologia, Università di Bologna, Policlinico S. Orsola-Malpighi, Italy. francescosaia@hotmail.com <francescosaia@hotmail.com>
Insights
Implementing regional systems of care (RSC) for ST-segment elevation myocardial infarction (STEMI) significantly improved reperfusion rates and reduced long-term mortality. This organized approach enhances patient outcomes in acute cardiac events.
Area of Science:
- Cardiology
- Public Health
- Health Systems Research
Background:
- Regional systems of care (RSC) are recommended for ST-segment elevation myocardial infarction (STEMI) to improve outcomes.
- Emphasis is placed on pre-hospital triage and primary percutaneous coronary intervention (PCI).
Purpose of the Study:
- To evaluate the impact of implementing an RSC on clinical outcomes in STEMI patients.
- To assess changes in reperfusion rates and mortality following RSC implementation.
Main Methods:
- A study of 1,823 STEMI patients admitted before (n=858) and after (n=965) RSC implementation in Bologna, Italy.
- Primary endpoint was mortality; secondary endpoints included death, myocardial infarction, stroke, and revascularization up to three years.
Main Results:
- Reperfusion rates increased significantly from 68.7% to 89.8% in patients admitted within 12 hours.
- Primary PCI became the dominant reperfusion strategy (34.5% to 85.9%).
- One-year mortality decreased from 23.9% to 18.8%, and three-year mortality decreased from 31.7% to 24.8%.
Conclusions:
- RSC implementation for STEMI care is associated with improved reperfusion rates.
- The study demonstrates a significant reduction in long-term mortality for STEMI patients within the RSC framework.
Introduction:
Organization of regional systems of care (RSC) with an emphasis on pre-hospital triage and primary percutaneous coronary intervention (PCI) has been recommended to implement guidelines and improve clinical outcome in ST-segment elevation myocardial infarction (STEMI).
Patients And Methods:
All STEMI patients (n = 1,823) admitted to any of the 13 hospitals of the province of Bologna, Italy, before (pre-RSC, n = 858) and after (RSC, n = 965) the implementation of a RSC were enrolled in the study. Primary evaluation was mortality. Secondary outcomes included death, myocardial infarction, stroke, and coronary revascularization procedures up to three-year follow-up.
Results:
Among patients admitted <12 h from symptom onset, reperfusion was performed in 68.7% pre-RSC versus 89.8% RSC, P <0.001. Within the RSC, primary PCI became the main reperfusion treatment (34.5% pre-RSC versus 85.9% RSC; P <0.001 for both), and one-year mortality was lower (23.9% pre-RSC versus 18.8% RSC; P = 0.0015). At three-year, this advantage was maintained and actually increased (31.7% pre-RSC versus 24.8% RSC; P = 0.0031). Independent predictors of mortality at three-years were RSC, age, heart failure, cerebrovascular disease, renal disease, shock, peripheral vascular disease, and malignancies.
Conclusions:
In this study, RSC for the treatment of STEMI was associated with increased rates of reperfusion and reduction of long-term mortality.
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