[Current prognosis of unstable angina. The results of clinical studies]
L Serés García1, V Valle Tudela
1Servicio de Cardiología, Hospital Universitario Germans Trias i Pujol, Badalona, Barcelona.
Insights
Unstable angina treatment has improved, with lower death and heart attack rates due to better understanding and therapies like aspirin and heparin. However, risk stratification and optimal treatment choices remain debated.
Area of Science:
- Cardiology
- Clinical Medicine
Context:
- Unstable angina (UA) clinical evolution has changed significantly over the past decade.
- Improved understanding of UA pathophysiology has led to better treatment strategies and prognosis.
Purpose:
- To review the advancements in unstable angina management.
- To discuss the ongoing debates in risk stratification and therapeutic options for UA.
Summary:
- Current treatments, including aspirin and heparin, have reduced 6-week mortality and acute myocardial infarction rates to approximately 2% and 5%, respectively.
- Despite progress, challenges persist regarding risk stratification, classification differences, and endpoint heterogeneity.
- The clinical significance of prognostic predictors is often underestimated, particularly concerning the low positive predictive value due to low event prevalence.
Impact:
- Highlights the need for standardized risk assessment and therapeutic guidelines in unstable angina care.
- Emphasizes the importance of re-evaluating prognostic variables and their clinical utility in managing UA patients.
Abstract:
In the last decade there has been a change in the clinical evolution of patients with unstable angina. A better knowledge of his pathophysiology has improved the progress in their treatment and prognosis. Aspirin and heparin have played an important role in this change. Nowadays, the rates of death and acute myocardial infarction at 6 weeks are about 2% and 5% respectively. Nevertheless, the debate about the stratification risk and the best therapeutic options persist. Part of this debate corresponds to the classification differences and to the heterogeneity of variables considered to be end points. On the other hand, the clinical importance conferred to variables identified as predictor of worse prognosis is not valued enough, forgetting that the low prevalence of events results in a low positive predictive value.
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