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Published on: April 27, 2019
In search of optimal cardioplegia for minimally invasive valve surgery
Sion Russell1, Salman Butt2, Hunaid A Vohra1
1Department of Cardiac Surgery/Cardiovascular Sciences, Bristol Heart Institute, University of Bristol, Bristol, UK.
Insights
This review found no evidence that blood or crystalloid cardioplegic solutions offer superior myocardial protection during minimally invasive valve surgery. Outcomes were comparable regardless of the cardioplegic solution used.
Area of Science:
- Cardiology
- Cardiac Surgery
- Cardioprotection
Background:
- Cardioplegic solutions induce cardiac arrest for safer cardiac surgery.
- Both blood and crystalloid cardioplegia have debated pros and cons.
- Myocardial protection during arrest is a key concern, assessed by biomarkers like TnT, TnI, and CK-MB.
Purpose of the Study:
- To review the literature on cardioplegic solutions for myocardial protection.
- To determine if one type of cardioplegic solution is superior during minimally invasive valve surgery.
Main Methods:
- Comprehensive literature review.
- Analysis of studies comparing different cardioplegic solutions in cardiac surgery.
- Evaluation of myocardial damage markers post-operatively.
Main Results:
- Minimally invasive valve surgery outcomes are comparable to full sternotomy.
- No significant difference in myocardial protection was found between blood and crystalloid cardioplegic solutions.
- Wide diversity in global cardioplegic solution use exists.
Conclusions:
- Current evidence does not support the superiority of any specific cardioplegic solution for myocardial protection in minimally invasive valve procedures.
- Further research may be needed to clarify optimal cardioplegic strategies.
Abstract:
Cardioplegic solutions are used in cardiac surgery to achieve controlled cardiac arrest during operations, making surgery safer. Cardioplegia can either be blood or crystalloid based, with perceived pros and cons of each type. Whilst it is known that cardioplegia causes cardiac arrest, there is debate over which cardioplegic solution provides the highest degree of myocardial protection during arrest. Myocardial damage is measured post-operatively by biomarkers such as serum TnT, TnI or CK-MB. It is known that the outcomes of minimally invasive valve surgery are comparable to full sternotomy valve operations. Despite there being a wide diversity in use of different cardioplegic solutions across the world, this comprehensive literature review found no superiority of one cardioplegic solution over the other for myocardial protection during minimally invasive valve procedures.

