Implementation of specialty centers for patients with ST-segment elevation myocardial infarction
Marc Eckstein1, William Koenig, Amy Kaji
1Keck School of Medicine of the University of Southern California, Los Angeles, California 90033, USA. eckstein@usc.edu
Insights
A regional system effectively identifies ST-segment elevation myocardial infarction (STEMI) patients using prehospital ECGs. This approach achieved door-to-balloon times under 90 minutes for nearly 90% of STEMI patients receiving primary PCI.
Area of Science:
- Cardiology
- Emergency Medicine
- Public Health Systems
Background:
- Percutaneous coronary intervention (PCI) is superior to fibrinolytic therapy for ST-segment elevation myocardial infarction (STEMI).
- Early intervention reduces morbidity and mortality in STEMI patients.
Purpose of the Study:
- Evaluate a regional system for prehospital identification and direct transport of STEMI patients.
- Assess the performance of STEMI receiving centers (SRCs) in providing primary PCI.
Main Methods:
- Prospective study of a regional SRC network's first year.
- Analysis of prehospital 12-lead ECG identification of STEMI.
- Tracking key time intervals from patient contact to PCI.
Main Results:
- 1,220 suspected STEMI patients identified via prehospital ECG.
- 734 patients (60%) underwent emergency PCI.
- Door-to-balloon times <90 minutes achieved for 89% of patients.
Conclusions:
- Regionalized STEMI care with prehospital ECGs significantly improves PCI timeliness.
- Nearly 90% of STEMI patients met the 90-minute door-to-balloon benchmark.
- The system demonstrates effective STEMI patient management and outcomes.
Background:
Early percutaneous coronary intervention (PCI) has been shown to be superior to fibrinolytic therapy and is associated with reduced morbidity and mortality for patients with ST-segment elevation myocardial infarction (STEMI).
Objective:
To determine the performance of a regional system with prehospital 12-lead electrocardiogram (ECG) identification of STEMI patients and direct paramedic transport to STEMI receiving centers (SRCs) for provision of primary PCI.
Methods:
This was a prospective study evaluating the first year of implementation of a regional SRC network to determine the key time intervals for patients identified with STEMI in the prehospital setting. Results. During the 12-month study period, 1,220 patients with a suspected STEMI were identified on prehospital 12-lead ECG, of whom 734 (60%) underwent emergency PCI. A door-to-balloon time of 90 minutes or less was achieved for 651 (89%) patients, and 459 (62.5%) had EMS-patient contact-to-balloon times
Conclusion:
Door-to-balloon times within the 90-minute benchmark were achieved for almost 90% of STEMI patients transported by paramedics after implementing our regionalized SRC system.
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