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Contribution to the treatment of post-infarction cardiac aneurysms
Insights
Resecting post-infarction cardiac aneurysms can improve heart function by reducing left ventricular enlargement. Assessing stroke volume before and after surgery reliably indicates the need for this procedure, lowering mortality.
Area of Science:
- Cardiovascular Surgery
- Cardiac Surgery
- Heart Failure Management
Background:
- Post-infarction cardiac aneurysms often lead to left-sided heart failure due to left ventricular enlargement.
- Ventricular enlargement increases myocardial tension and workload, exacerbating cardiac ischemia.
Purpose of the Study:
- To discuss contemporary challenges in resecting post-infarction cardiac aneurysms.
- To evaluate the efficacy of left ventricular reduction surgery, potentially combined with aorto-coronary bypass, in managing heart failure.
- To establish reliable criteria for surgical intervention.
Main Methods:
- Review of contemporary problems in cardiac aneurysm resection.
- Surgical intervention involving left ventricular reduction in 52 patients.
- Assessment of stroke volume before and after resection as an indicator for surgery.
Main Results:
- Left ventricular reduction surgery, especially with aorto-coronary bypass, effectively improves or resolves heart failure.
- Stroke volume assessment proved to be a reliable criterion for surgical indication.
- The application of this criterion led to a significant decrease in surgical mortality, particularly from low cardiac output syndrome.
Conclusions:
- Resection of post-infarction cardiac aneurysms is a viable treatment for heart failure.
- Stroke volume measurement is a crucial tool for patient selection and improving surgical outcomes.
- Surgical mortality can be substantially reduced by appropriate patient selection based on stroke volume assessment.
Abstract:
The authors discuss contemporary problems of resection of post-infarction cardiac aneurysms. In their opinion the main cause of left-sided cardiac failure is enlargement of the left ventricle which leads to increaser demands on the tension of muscle fibres and work of the heart. These mechanisms potentiate at the same time the ischaemia of the heart muscle. Reduction of the left ventricle by appropriate resection eliminates or improves markedly this adverse condition in particular when there is an opportunity of simultaneous revascularization by an aorto-coronary by-pass. Based on the results in a series of 52 operations the authors consider assessment of the stroke volume before and after the foreseen resection a suitable and reliable criterion for indication of the operation. Its application led to a substantial decline of the surgical mortality caused in particular by the postoperative low cardiac output syndrome.