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Is transmyocardial revascularisation of benefit to people with 'no option' angina?
1Department of Cardiothoracic Surgery, Freeman Hospital, Freeman Road, Newcastle NE7 7DN, UK.
Insights
Transmyocardial revascularization (TMR) offers significant angina relief for selected severe angina patients unsuitable for bypass surgery. However, this cardiac surgery intervention carries a notable perioperative mortality risk of approximately 5%.
Area of Science:
- Cardiovascular Surgery
- Interventional Cardiology
Background:
- Severe angina pectoris often presents in patients with coronary artery disease unsuitable for traditional bypass grafting.
- Transmyocardial revascularization (TMR) has been proposed as an alternative therapy for refractory angina in 'no option' patients.
Purpose of the Study:
- To evaluate the efficacy and safety of transmyocardial revascularization (TMR) in patients with severe angina and ungraftable myocardium.
Main Methods:
- A systematic review of best-evidence studies was conducted.
- 345 relevant papers were identified, with 11 selected for detailed analysis.
- Data on patient characteristics, study design, outcomes, and limitations were tabulated.
Main Results:
- Transmyocardial revascularization (TMR) significantly reduced angina grade in selected stable patients with CCS grade III-IV angina.
- The perioperative mortality associated with TMR was approximately 5%.
Conclusions:
- Transmyocardial revascularization (TMR) is a viable option for select 'no option' patients with severe angina.
- The benefits of angina reduction must be weighed against the significant perioperative risks.
Abstract:
A best evidence topic in cardiac surgery was written according to a structured protocol. The question addressed was whether the use of transmyocardial revascularisation is of benefit in patients with severe angina but ungraftable areas of myocardium. Altogether 345 papers were found using the reported search, of which 11 represented the best evidence to answer the clinical question. The author, journal, date and country of publication, patient group studied, study type, relevant outcomes, results, and study weaknesses were tabulated. We conclude that in selected stable patients with 'no option' CCS grade III-IV angina, TMR can significantly reduce the grade of angina at the cost of a perioperative mortality of around 5%.
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