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[Angina pectoris. Silent ischemia]
1U.T.I.C.-Arsénio Cordeiro, Hospital de Santa Maria, Lisboa.
Insights
Detecting and treating silent myocardial ischemia (SMI) is crucial for coronary artery disease management. This review covers SMI pathophysiology, detection methods like exercise testing, and its prognostic significance in angina patients.
Area of Science:
- Cardiology
- Clinical Medicine
Context:
- Coronary artery disease presents challenges in managing silent myocardial ischemia (SMI).
- Understanding SMI pathophysiology and its impact is vital for patient outcomes.
Purpose:
- To define silent myocardial ischemia (SMI) and total ischemia burden.
- To discuss the pathophysiology, detection, and treatment of SMI.
- To highlight the prognostic importance of SMI in coronary artery disease.
Summary:
- The review defines SMI and ischemia burden, detailing the ischemic cascade.
- Detection methods like exercise testing and Holter ECG are emphasized.
- SMI classification, prevalence in chronic stable angina, and prognostic implications are analyzed, referencing key clinical trials.
Impact:
- Improved understanding of silent myocardial ischemia detection and management.
- Highlights the prognostic significance of SMI in patients with coronary artery disease.
- Provides insights from major clinical trials for guiding treatment strategies.
Abstract:
One of the most difficult problems related to coronary artery disease is the detection and eventual treatment of silent myocardial ischemia (SMI). After defining the concept of SMI and total ischemia burden, the author approaches the pathophysiology of myocardial ischemia and focuses on the ischemic cascade. Concerning the detection of SMI the importance of exercise testing and Holter ECG is stressed. Following the classification of SMI proposed by P. F. Cohn, the author analyzes SMI type III with particular interest. He refers the prevalence of SMI in patients suffering from chronic stable angina, and focuses on the prognostic importance of SMI. Afterwards, the problem of treatment and prognostic implications is approached. The paper ends with mention of the results of the most important clinical trials in this field: CASIS, CAPE, TIBBS, ASIST, ACIP, TIBET.