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.

Journal of Cardiac Surgery
|February 21, 2018
PubMed
Abstract

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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