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Risks and Benefits of Thrombolytic, Antiplatelet, and Anticoagulant Therapies for ST Segment Elevation Myocardial
Bruno Ramos Nascimento1, Marcos Roberto de Sousa2, Fábio Nogueira Demarqui3
1Serviço de Cardiologia e Cirurgia Cardiovascular, Hospital das Clínicas da Universidade Federal de Minas Gerais, Avenida Professor Alfredo Balena 110, Campus Saúde, 30130-100 Belo Horizonte, MG, Brazil ; Serviço de Hemodinâmca do Hospital Universitário São José (INCOR Minas), Rua Aimorés 2896, Barro Preto, 30140-073 Belo Horizonte, MG, Brazil ; Departamento de Clínica Médica da Faculdade de Medicina da Universidade Federal de Minas Gerais, Avenida Professor Alfredo Balena 190, Campus Saúde, 30130-100 Belo Horizonte, MG, Brazil.
Insights
Complex STEMI treatments combining multiple drugs and primary angioplasty (PA) significantly reduce death and reinfarction but increase major bleeding. Benefits outweigh risks.
Area of Science:
- Cardiology
- Clinical Medicine
- Pharmacology
Background:
- ST-elevation myocardial infarction (STEMI) treatment involves multiple drug classes and procedures.
- The optimal combination of thrombolytics, anticoagulants, antiplatelets, and primary angioplasty (PA) requires ongoing evaluation.
- Assessing the balance between therapeutic benefits and bleeding risks is crucial.
Purpose of the Study:
- To evaluate the impact of combining thrombolytics, anticoagulants, antiplatelets, and PA on mortality, reinfarction (AMI), and major bleeding (MB) in STEMI.
- To analyze the correlation between the number of drugs used, PA, and study publication year with patient outcomes.
Main Methods:
- A systematic literature search of randomized trials in Medline was conducted.
- Studies included at least 500 patients and reported rates of death, AMI, and MB.
- Data from 59 eligible papers involving 404,556 patients were analyzed for correlations.
Main Results:
- A higher number of drugs correlated with increased rates of death and major bleeding (MB).
- Primary angioplasty (PA) was associated with lower mortality but increased MB.
- Publication year showed correlations with reduced death and AMI, and increased MB, indicating evolving treatment effectiveness.
Conclusions:
- Increasingly complex STEMI treatment regimens have led to significant reductions in mortality.
- Concurrent increases in major bleeding (MB) rates are observed with more complex treatments.
- Despite increased bleeding risks, the overall benefits of modern STEMI therapies outweigh the associated risks.
Abstract:
Objectives. Assess the impact of associating thrombolytics, anticoagulants, antiplatelets, and primary angioplasty (PA) on death, reinfarction (AMI), and major bleeding (MB) in STEMI therapy. Methods. Medline search was performed to identify randomized trials comparing these classes in STEMI treatment, at least 500 patients, providing death, AMI, and MB rates. Similar arms were grouped. Correlation between number of drugs and PA and the outcomes was evaluated, as well as correlation between the year of the study and the outcomes. Results. Fifty-nine papers remained after exclusions. 404.556 patients were divided into 35 groups of arms. There was correlation between the number of drugs and rates of death (r = -0.466, P = 0.005) and MB (r = 0.403, P = 0.016), confirmed by multivariate regression. This model also showed that PA is associated with lower mortality and increased MB. Year and period of publication correlated with the outcomes: death (r = -0.380, P < 0.001), MB (r = 0.212, P = 0.014), and AMI (r = -0.231, P = 0.009). Conclusion. The increasing complexity of STEMI treatment has resulted in significant reduction in mortality along with increased rates of MB. Overall, however, the benefits of treatment outweigh the associated risks of MB.
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