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Continuous negative extrathoracic pressure in children after congenital heart surgery

Nobuaki Shime1, Chiaki Toida, Toshiyuki Itoi

  • 1Department of Anesthesiology and Intensive Care, University Hospital, Kyoto Prefectural University of Medicine, Kyoto, Japan. shime@koto.kpu-m.ac.jp

Critical Care and Resuscitation : Journal of the Australasian Academy of Critical Care Medicine
|January 18, 2007
PubMed

Insights

Continuous negative extrathoracic pressure (CNEP) improved outcomes in children post-congenital heart surgery. This non-invasive ventilation method enhanced oxygenation and reduced cardiac strain, offering a promising management option.

Area of Science:

  • Pediatric Cardiology
  • Thoracic Surgery
  • Critical Care Medicine

Background:

  • Congenital heart defects require complex surgical interventions.
  • Post-operative management in pediatric intensive care units (PICU) is crucial.
  • Optimizing respiratory and hemodynamic support after cardiac surgery is essential.

Purpose of the Study:

  • To evaluate the efficacy of continuous negative extrathoracic pressure (CNEP) in pediatric patients following congenital heart defect surgery.
  • To assess the impact of CNEP on hemodynamic parameters and gas exchange.
  • To determine the safety and potential benefits of prophylactic CNEP use after extubation.

Main Methods:

  • A prospective study involving 16 infants and children in the PICU after congenital heart surgery.
  • Application of CNEP using a cuirass and ventilator at pressures of -3 to -6 cmH2O.
  • Assessment of hemodynamic changes and gas exchange at 1 and 8 hours post-CNEP initiation in spontaneously breathing patients.

Main Results:

  • Significant increases in urine output were observed in both groups (49% in Group A, 65% in Group B).
  • Central venous pressure decreased, and a trend towards increased arterial blood pressure was noted.
  • Oxygen saturation improved significantly in Group B, from 96.5% to 99% at 1 hour and 100% at 8 hours.

Conclusions:

  • Prophylactic CNEP post-extubation may reduce right ventricular afterload.
  • CNEP appears to improve arterial oxygenation in pediatric cardiac surgery patients.
  • CNEP presents a potentially valuable therapeutic option for managing patients after congenital heart surgery.
Abstract

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