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[Treatment of unstable coronary disease]
1Országos Gyógyintézeti Központ Kardiológiai és Belgyógyászati Osztály és Semmelweis Egyetem, II. sz. Kardiológiai Tanszék.
Insights
Unstable coronary artery disease (UCAD), encompassing unstable angina and non-Q-wave myocardial infarction, stems from atherosclerotic plaque rupture. Treatment and follow-up align with European Society of Cardiology guidelines for better patient outcomes.
Area of Science:
- Cardiology
- Pathophysiology
- Thrombosis
Context:
- Ischemic heart disease presents with acute ischemic syndromes, including unstable angina and myocardial infarction.
- Unstable angina and non-Q-wave myocardial infarction share common etiologies, risk factors, and therapeutic strategies.
- Atherosclerotic plaque rupture or erosion initiates thrombogenic events leading to intracoronary thrombus formation.
Purpose:
- To consolidate the understanding of unstable angina and non-Q-wave myocardial infarction under the umbrella term "unstable coronary artery disease" (UCAD).
- To delineate the shared pathogenetic mechanisms, risk stratification, and therapeutic targets for these conditions.
- To review current therapeutic approaches and follow-up strategies based on European Society of Cardiology guidelines and multicenter studies.
Summary:
- Unstable coronary artery disease (UCAD) involves plaque rupture leading to non-obstructive thrombus formation, preventing transmural necrosis.
- UCAD encompasses unstable angina and non-Q-wave myocardial infarction, sharing similar etiologies and requiring distinct therapeutic approaches from ST-elevation myocardial infarction.
- The review synthesizes evidence-based guidelines for managing UCAD, focusing on therapy and patient follow-up.
Impact:
- Provides a unified framework for understanding and managing a significant subset of acute ischemic heart disease.
- Highlights the importance of guideline-adherent therapy and follow-up for improving outcomes in unstable coronary artery disease.
- Facilitates a clearer distinction in management strategies between UCAD and ST-elevation myocardial infarction.
Abstract:
The clinical presentations of ischemic heart disease comprises the term of acute ischaemia syndromes, that include unstable angina pectoris, non-Q-wave myocardial infarction, Q-wave-myocardial infarction and sudden death. Among the different presentations of acute ischemic syndromes, the unstable angina and non-Q-wave myocardial infarction can be regarded together. In both pathologic entity, the plaque rupture, or erosion signifies the primary event, which is the source of the highly thrombogenic substances coming out from the core of the atherosclerotic plaque and entering to the coronary and systemic circulation. They cause a thrombocyte-rich "white" intracoronary thrombus, that is not fully obstructive, or there is adequate collateral circulation, being the pathogenetic substrate that prevents the development of transmural necrosis. The nosologically-bound two clinical entity can be called as "unstable coronary artery disease" (UCAD), since they have uniform etiologic, risk stratification and therapeutic backgrounds and also therapeutic targets that are basically distinct, they are admitted for transmural "ST-elevation" infarction. The review is discussing the therapy and the questions of follow-up of the disease according to the guidelines of the European Society of Cardiology and to the multicenter evidence based studies.