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Multicentre Study of Diaphragm Pacing in High-Risk Cardiac Surgery to Decrease Postoperative Mechanical Ventilation.

Charles-Henri David1, Mickael Vourc'h2, Guillaume Guimbretiere1

  • 1Nantes Université, CHU Nantes, Service de Chirurgie Thoracique et Cardiovasculaire, l'Institut du thorax, Nantes F-44000, France.

European Journal of Cardio-Thoracic Surgery : Official Journal of the European Association for Cardio-Thoracic Surgery
|December 19, 2025
PubMed
Summary
This summary is machine-generated.

Diaphragm pacing may reduce mechanical ventilation time in high-risk cardiac surgery patients. This intervention shows promise in improving weaning success and decreasing overall ventilator burden.

Keywords:
diaphragm pacingopen cardiac surgeryprolonged mechanical ventilation

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Area of Science:

  • Cardiology
  • Pulmonology
  • Critical Care Medicine

Background:

  • Prolonged mechanical ventilation affects 15% of cardiac surgery patients, increasing morbidity and mortality.
  • Identifying interventions to reduce ventilator dependence is crucial for improving patient outcomes.

Purpose of the Study:

  • To investigate the efficacy of diaphragm pacing in reducing mechanical ventilation duration after cardiac surgery.
  • To assess the impact of diaphragm pacing on weaning success in high-risk patients.

Main Methods:

  • A randomized controlled pilot study involving patients undergoing open cardiac surgery.
  • Patients with high-risk criteria for prolonged ventilation were enrolled.
  • Diaphragm pacing was initiated postoperatively in the treatment group.

Main Results:

  • Diaphragm pacing significantly reduced total mechanical ventilation hours (246 vs. 670 hours).
  • Weaning success at 12 hours postoperatively was higher in the treatment group (83% vs. 65%).
  • Patients receiving diaphragm pacing showed a reduced median time on ventilation.

Conclusions:

  • Diaphragm pacing is a potential strategy to decrease ventilator burden in cardiac surgery patients at risk of prolonged ventilation.
  • Results support a larger randomized controlled trial to confirm these findings.