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Updated: Feb 2, 2026

Myocardial Infarction and Functional Outcome Assessment in Pigs
Published on: April 25, 2014
Outcomes of medically managed patients with myocardial infarction
Padma Kaul1,2, Anamaria Savu2, Shereen Hamza2
1Department of Medicine, University of Alberta, Canada.
Insights
Hospital catheterization facility availability impacts medical management for myocardial infarction patients. However, it did not correlate with increased mortality, suggesting care quality is maintained regardless of onsite facilities.
Area of Science:
- Cardiology
- Health Services Research
Background:
- Myocardial infarction (MI) management strategies vary based on hospital resources.
- Understanding outcomes for ST-elevation MI (STEMI) and non-ST-elevation MI (NSTEMI) patients at hospitals with and without catheterization facilities is crucial.
Purpose of the Study:
- To compare outcomes for STEMI and NSTEMI patients receiving medical management.
- To analyze the impact of presenting to hospitals with versus without onsite catheterization facilities.
Main Methods:
- Retrospective analysis of 25,921 MI patients in Alberta, Canada (April 2010-March 2016).
- Patients categorized by MI type (STEMI/NSTEMI), hospital catheterization availability, and management strategy (medically managed with/without angiography).
- Outcomes including in-hospital mortality were compared.
Main Results:
- 51% of patients presented to hospitals without catheterization facilities; 34% received medical management.
- Medical management rates were higher at hospitals without catheterization facilities (43% vs. 24%).
- Lack of onsite facilities was not associated with increased mortality for medically managed patients without angiography, but showed reduced mortality for NSTEMI patients medically managed after angiography.
Conclusions:
- Hospital catheterization facility availability influences medical management rates for MI patients.
- Presenting to hospitals without onsite catheterization facilities was not associated with adverse short- or long-term mortality outcomes for STEMI and NSTEMI patients.
Aims:
The purpose of this study was to compare outcomes associated with medical management of ST-elevation myocardial infarction and non-ST-elevation myocardial infarction patients presenting to hospitals with and without onsite catheterization facilities.
Methods:
All patients (n=25,921) with ST-elevation myocardial infarction (n=10,563) or non-ST-elevation myocardial infarction (n=15,358) in Alberta, Canada between April 2010-March 2016 were categorized according to availability of catheterization facilities at the hospital they presented to and their management strategy (medically managed without coronary angiography or medically managed after coronary angiography).
Results:
Overall, 51% presented to hospitals without catheterization facilities; and 34% were managed medically (18% without coronary angiography, and 16% after coronary angiography). Rates of medical management were higher at hospitals without versus those with catheterization facilities (43% vs. 24%, p<0.01). However, both the rate of presentation to hospitals without catheterization facilities (70% non-ST-elevation myocardial infarction, 24% ST-elevation myocardial infarction, p<0.01) and medical management (45% non-ST-elevation myocardial infarction, 18% ST-elevation myocardial infarction, p<0.01) differed by myocardial infarction type. The lack of catheterization facilities at the presenting hospital had no association with in-hospital mortality in patients medically managed without coronary angiography, but was associated with a lower risk of mortality among patients medically managed after coronary angiography. However, the latter benefit was restricted to non-ST-elevation myocardial infarction patients only (adjusted hazard ratio 0.43, 95% confidence interval: 0.25-0.76).
Conclusion:
The availability of catheterization facilities at the hospital at which non-ST-elevation myocardial infarction and ST-elevation myocardial infarction patients presented influenced their likelihood of being medically managed, but was not associated with adverse short- or long-term mortality outcomes.
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