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Updated: Jun 20, 2026

Surgical Swine Model of Chronic Cardiac Ischemia Treated by Off-Pump Coronary Artery Bypass Graft Surgery
Published on: March 27, 2018
[Some current views on chronic ischemic heart disease]
1I. interní klinika Lékarské fakulty UK a FN Hradec Králové. vojacjan@fnhk.cz
Insights
Chronic myocardial ischemia, often caused by coronary artery atherosclerosis, presents diagnostic challenges. Risk stratification and revascularization can improve outcomes for patients with ischemic heart disease.
Area of Science:
- Cardiology
- Cardiovascular Medicine
- Ischemic Heart Disease Research
Context:
- Chronic myocardial ischemia arises from an oxygen supply-demand imbalance in the heart muscle.
- Atherosclerosis of the coronary arteries is the predominant cause of ischemic heart disease.
- Current diagnostic methods often detect coronary impairment only after myocardial ischemia is evident.
Purpose:
- To review the current understanding of chronic myocardial ischemia.
- To discuss prognostic stratification and revascularization strategies for ischemic heart disease.
Summary:
- Patients with chronic ischemic heart disease can be categorized into low, medium, and high-risk subgroups based on prognosis.
- Mean annual mortality rates vary significantly across these risk subgroups.
- Revascularization procedures offer potential benefits, including improved prognosis and reduced ischemic episodes in specific patient populations.
Impact:
- Highlights the need for improved diagnostic tools for early detection of coronary impairment.
- Emphasizes the value of risk stratification for tailoring treatment and improving patient outcomes.
- Suggests revascularization as a therapeutic option to enhance left ventricle function and reduce mortality in selected patients.
Abstract:
Chronic myocardial ischemia results from a temporary disbalance between supply of oxygen to myocardium and consumption of oxygen by myocardium. The most frequent cause of ischemic heart disease is atherosclerosis of the coronary arteries. At present, diagnosis of coronary impairment is for practical reasons not possible until myocardial ischemia is detectable. Despite the current pharmacological treatments, data from the recent studies justify stratification of prognosis of patients with chronic ischemic heart disease into subgroups with low, medium and high risk. Mean annual mortality is below 1% in patients with low risk, 1-2% in patients with medium risk and above 2% in patients with high risk. Revascularization procedures might improve prognosis in certain subgroups of patient with chronic ischemic heart disease. Revascularization also decreases the incidence of ischemic episodes and improves the left ventricle function in some subgroups.
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