Abstract
Objective
The use of del Nido cardioplegia (DNC) was initially adopted in the field of pediatric cardiac surgery. Several studies in adult patients suggested there were no differences in early postoperative outcomes as compared to blood-based cardioplegia. We sought to evaluate the impact of DNC as compared to modified Buckberg cardioplegia (BC) on early postoperative outcomes in patients undergoing surgical aortic valve replacement with and without coronary artery bypass grafting (SAVR ± CABG).
Methods
All SAVR ± CABG procedures were switched from BC to DNC at our institute in 2012. We compared outcomes of BC (November 2007–October 2012; n = 1037) with DNC (November 2012–December 2017; n = 1067). Significant baseline differences were observed between the two groups and such differences were adjusted via inverse propensity treatment weighting.
Results
After adjustment, SAVR ± CABG patients who received DNC required longer aortic cross-clamp times, while postoperative peak troponin I and creatinine kinase-MB isotype were significantly lower in the BC group. Length of hospital and intensive care unit stay were significantly shorter in the DNC group. The incidence of postoperative complications was lower in the DNC cohort. Thirty-day mortality rate was significantly lower in the DNC group (3.0% vs 4.9%, p = 0.002).
Conclusions
The use of DNC cardioplegia in our cohort of adult patients who underwent SAVR ± CABG was safe and associated with improved postoperative outcomes. However, the use of DNC may be associated with higher degrees of myocardial injury.
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Data availability
This study design was approved by Institutional Review Board (IRB). There was a waiver of consent and patients did not need to consent to use their data.
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Nakai, C., Zhang, C., Kitahara, H. et al. Outcomes of del Nido cardioplegia after surgical aortic valve replacement and coronary artery bypass grafting. Gen Thorac Cardiovasc Surg 71, 491–497 (2023). https://doi.org/10.1007/s11748-023-01914-x
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DOI: https://doi.org/10.1007/s11748-023-01914-x