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Published on: May 21, 2017
Del Nido cardioplegia for minimally invasive aortic valve replacement
Michael S Koeckert1, Deane E Smith1, Patrick F Vining1
1Department of Cardiothoracic Surgery, NYU School of Medicine, NYU Langone Health, New York, New York.
Background:
We analyzed the impact and safety of del Nido Cardioplegia (DNC) in patients undergoing minimally invasive aortic valve replacement (MIAVR).
Methods:
We analyzed all isolated MIAVR replacements from 5/2013-6/2015 excluding re-operative patients. The approach was a hemi-median sternotomy in all patients. Patients were divided into two cohorts, those who received 4:1 crystalloid:blood DNC solution and those in whom standard 1:4 Buckberg-based cardioplegia (WBC) was used. One-to-one propensity case matching of DNC to WBC was performed based on standard risk factors and differences between groups were analyzed using chi-square and non-parametric methods.
Results:
MIAVR was performed in 181 patients; DNC was used in 59 and WBC in 122. Case matching resulted in 59 patients per cohort. DNC was associated with reduced re-dosing (5/59 (8.5%) versus 39/59 (61.0%), P < 0.001) and less total cardioplegia volume (1290 ± 347 mL vs 2284 ± 828 mL, P < 0.001). Antegrade cardioplegia alone was used in 89.8% (53/59) of DNC patients versus 33.9% (20/59) of WBC patients (P < 0.001). Median bypass and aortic cross-clamp times were similar. Clinical outcomes were similar with respect to post-operative hematocrit, transfusion requirements, need for inotropic/pressor support, duration of intensive care unit stay, re-intubation, length of stay, new onset atrial fibrillation, and mortality.
Conclusions:
Del Nido cardioplegia usage during MIAVR minimized re-dosing and the need for retrograde delivery. Patient safety was not compromised with this technique in this group of low-risk patients undergoing MIAVR.
Insights
Del Nido cardioplegia (DNC) reduced re-dosing and retrograde delivery needs during minimally invasive aortic valve replacement (MIAVR). Patient safety was maintained in this low-risk group.
Area of Science:
- Cardiovascular Surgery
- Cardiac Anesthesia
- Minimally Invasive Cardiac Surgery
Background:
- Minimally invasive aortic valve replacement (MIAVR) is an evolving surgical technique.
- The choice of cardioplegia solution can impact surgical efficiency and patient outcomes.
- Del Nido Cardioplegia (DNC) is a crystalloid:blood mixture with potential benefits in cardiac procedures.
Purpose of the Study:
- To evaluate the impact and safety of Del Nido Cardioplegia (DNC) compared to standard Buckberg-based cardioplegia (WBC) in patients undergoing MIAVR.
- To assess differences in cardioplegia administration, surgical times, and clinical outcomes between the two cardioplegia strategies.
Main Methods:
- Retrospective analysis of isolated MIAVR procedures from 5/2013-6/2015.
- Patients were divided into DNC and WBC cohorts, with one-to-one propensity score matching based on risk factors.
- Outcomes were compared using chi-square and non-parametric statistical methods.
Main Results:
- Del Nido Cardioplegia (DNC) was associated with significantly reduced re-dosing (8.5% vs 61.0%, P < 0.001) and lower total cardioplegia volume (1290 mL vs 2284 mL, P < 0.001).
- Antegrade cardioplegia delivery was more frequent with DNC (89.8% vs 33.9%, P < 0.001).
- No significant differences were observed in bypass/cross-clamp times, postoperative hematocrit, transfusion needs, inotropic support, ICU/hospital length of stay, or mortality.
Conclusions:
- Del Nido Cardioplegia (DNC) effectively minimized the need for re-dosing and retrograde delivery during MIAVR.
- The use of DNC in this low-risk MIAVR patient cohort did not compromise patient safety.
- DNC represents a viable alternative cardioplegia strategy for selected MIAVR procedures.
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