Neurally adjusted ventilatory assist for infants under prolonged ventilation

Area of Science:

• Neonatal Medicine
• Pediatric Pulmonology
• Critical Care

Background:

• Severe bronchopulmonary dysplasia necessitates prolonged mechanical ventilation in preterm infants.
• Cyanotic episodes and the need for sedation/paralysis are common complications.
• Neurally adjusted ventilatory assist (NAVA) offers a potential solution for tailored respiratory support without sedation.

Purpose of the Study:

• To evaluate the efficacy of NAVA in reducing sedation and cyanotic episodes in preterm infants with prolonged mechanical ventilation.
• To compare NAVA with pneumatically triggered assist methods.

Main Methods:

• Retrospective review of medical records of preterm infants requiring mechanical ventilation for over 6 months.
• Comparison of infants supported with NAVA (≥2 months) versus those on pneumatically triggered assist methods.
• Assessment of changes in sedation, paralysis, and cyanotic episodes after NAVA implementation.

Main Results:

• The NAVA group experienced significantly shorter continuous sedation duration and lower bolus sedative use compared to the pneumatically triggered assist group.
• The NAVA group received a lower dose of dexamethasone.
• NAVA use was associated with a significant decrease in cyanotic episodes and bolus sedative frequency.

Conclusions:

• NAVA can reduce cyanotic episodes, sedative requirements, and dexamethasone use in infants with prolonged mechanical ventilation.
• NAVA may offer superior patient-ventilator synchrony and appropriate respiratory support compared to pneumatically triggered modes for premature infants with tracheostomy.