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Stroke prevention in cardiac surgery
1Department of Cardiothoracic Surgery, Papworth Hospital, Cambridge, UK.
Insights
Epi-aortic scanning effectively identifies aortic atheroma, a primary cause of stroke after cardiac surgery. This cost-effective method can reduce perioperative stroke incidence, making it a valuable addition to routine practice.
Area of Science:
- Cardiovascular Surgery
- Neurology
- Medical Technology
Background:
- Stroke is a significant complication of cardiac surgery, with an annual rate of 2.6% in the UK.
- Aortic atheroma is the leading cause of stroke following coronary artery bypass graft procedures.
- Current stroke prevention strategies in the UK may not be resource-efficient.
Purpose of the Study:
- To evaluate the role of carotid artery intervention and peri-operative epi-aortic scanning in preventing stroke during cardiac surgery.
- To assess the cost-effectiveness of current stroke prevention methods versus epi-aortic scanning.
- To advocate for the adoption of epi-aortic scanning in routine cardiac surgical practice.
Main Methods:
- Review of stroke risk factors in cardiac surgery.
- Analysis of stroke incidence and prevention costs within the UK National Health Service.
- Evaluation of the effectiveness of epi-aortic scanning in identifying aortic atheroma and reducing perioperative brain damage.
Main Results:
- Aortic atheroma is the foremost cause of post-coronary artery bypass graft strokes.
- Epi-aortic scanning is effective in identifying aortic atheroma and is a low-cost intervention.
- Studies confirm that epi-aortic scanning reduces perioperative brain damage during heart surgery.
Conclusions:
- Epi-aortic scanning is a valuable tool for identifying aortic atheroma and reducing stroke risk in cardiac surgery.
- The cost-effectiveness of epi-aortic scanning warrants its adoption into routine cardiac surgical practice.
- Further confirmation of its cost-effectiveness in brain protection during surgery is recommended.
Abstract:
This article addresses the main risk factors for stroke in cardiac surgery and discusses the role of carotid artery intervention and peri-operative epi-aortic scanning in the prevention of stroke. In great Britain and Northern Ireland, there were ∼2789 new strokes following the 105,558 cases of cardiac surgery from 2004 to 2008 (an annual stroke rate of 2.6% complicating heart surgery in the UK). We argue that The National Health Service in the UK is set to spend £187,682 preventing each stroke in some 30 cardiac surgical patients while ignoring the remaining 528 strokes that complicate cardiac surgery in the UK each year. Caution must be taken in pricing the prevention of perioperative stroke as we must question our use of finite resources. Aortic atheroma has been demonstrated as the foremost cause of post-coronary artery bypass graft strokes. Epi-aortic scanning is effective in identifying aortic atheroma encouraging measures to reduce perioperative stroke with heart surgery, and it is cheap. Several studies have confirmed epi-aortic scanning at the time of heart surgery to be effective in reducing the incidence of perioperative brain damage. We suggest that it is time to adopt epi-aortic scanning in our routine cardiac surgical practice if only to confirm or refute its cost-effectiveness in brain protection during this surgery.
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