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[Coronary syndromes in the elderly]
Jean-Paul Bounhoure1, Didier Carrié, Jacques Puel
1Service de cardiologie, CHU Toulouse-Rangueil, 2, avenue J. Poulhes, Toulouse 31403.
Insights
Acute coronary syndromes (ACS) in the elderly present poor prognoses due to comorbidities and late diagnosis. Optimal management strategies, including reperfusion therapies, require further dedicated trials for this population.
Area of Science:
- Cardiology
- Geriatric Medicine
Background:
- Acute coronary syndromes (ACS) are prevalent in elderly individuals, associated with significant morbidity and mortality.
- Older patients often have severe coronary artery disease and comorbidities, complicating treatment decisions and leading to reluctance in adopting advanced revascularization techniques.
- Elderly patients are frequently underrepresented in clinical trials, limiting evidence-based treatment guidelines.
Purpose of the Study:
- To review the current understanding of acute coronary syndrome (ACS) management in the elderly.
- To highlight the challenges and therapeutic options for ST-elevation myocardial infarction (STEMI) and non-ST-elevation ACS (NSTE-ACS) in older adults.
- To emphasize the need for further research and dedicated clinical trials.
Main Methods:
- Review of existing literature on ACS in the elderly.
- Analysis of treatment strategies including intravenous thrombolysis, primary angioplasty, and interventional approaches for NSTE-ACS.
- Discussion of risk factors, outcomes, and therapeutic outcomes in the geriatric population.
Main Results:
- Intravenous thrombolysis reduces mortality by 26% but increases hemorrhage risk in the elderly.
- Primary angioplasty in high-volume centers shows promise for STEMI, reducing mortality and recurrent ischemia.
- Interventional strategies for NSTE-ACS, including dual antiplatelet therapy and glycoprotein IIb/IIIa inhibitors, demonstrate superior reduction in major adverse clinical events compared to conservative management.
Conclusions:
- ACS management in the elderly is complex, requiring careful consideration of individual risk profiles.
- While reperfusion therapies offer benefits, their application in older adults necessitates a nuanced approach due to increased risks.
- Dedicated randomized trials are crucial to optimize ACS treatment strategies and improve outcomes in the elderly population.
Abstract:
Acute coronary syndromes (ACS) are frequent in the elderly and carry a poor prognosis. Severe coronary artery disease, frequent comorbidity, late diagnosis, and treatments themselves are responsible for high morbidity and mortality rates. Reluctance to treat elderly patients with new mechanical or chemical revascularization techniques is due to the higher risk profile. ACS may or may not be accompanied by ST elevation: STEMI corresponds to acute myocardial infarction before myocardial necrosis, while non STEMI corresponds to unstable angina and subendocardial necrosis. Despite the high incidence of STEMI in the elderly, older patients have been excluded from large randomized trials. Chemical and mechanical reperfusion are the two recommended treatments for patients hospitalized before the 6th hour. Intravenous thrombolysis is the most common strategy: it offers a 26% reduction in mortality compared to conventional treatment, but carries a higher risk of brain hemorrhage than in younger patients. In high-throughput centers with experienced cardiologists, primary angioplasty seems to be the optimal strategy, with fewer deaths and recurrent ischemia. Two approaches are possible for NST-ACS: conservative or interventional. The latter includes medical treatment, early coronarography and revascularization by angioplasty or surgery. This strategy, combined with aspirin, clopidogrel, and glycoprotein II B/IIIa receptor inhibitors, offers a larger absolute reduction in the 30-day major adverse clinical event rate than conservative management. Dedicated randomized trials are needed to provide a more thorough picture of ACS management in the elderly.
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