Elective high frequency oscillatory ventilation versus conventional ventilation for acute pulmonary dysfunction in...

Area of Science:

• Neonatal Medicine
• Pediatric Pulmonology
• Critical Care

Background:

• Respiratory failure in preterm infants due to lung immaturity is a leading cause of mortality.
• Conventional ventilation (CV) can cause lung injury and chronic lung disease (CLD).
• High-frequency oscillatory ventilation (HFOV) is explored as a lung-protective alternative.

Purpose of the Study:

• To compare the elective use of HFOV versus CV in preterm infants with respiratory distress syndrome (RDS).
• To evaluate the impact on CLD, mortality, and other complications of prematurity and assisted ventilation.

Main Methods:

• Systematic review and meta-analysis of randomized controlled trials (RCTs).
• Searches of multiple databases (MEDLINE, EMBASE, etc.) updated through November 2014.
• Inclusion of 19 RCTs involving 4096 infants requiring mechanical ventilation for RDS.

Main Results:

• HFOV showed no significant effect on mortality at 28-30 days or term equivalent age.
• A significant reduction in CLD risk was observed with HFOV, though inconsistent across studies.
• Increased pulmonary air leaks were noted with HFOV, while severe retinopathy of prematurity risk was reduced.

Conclusions:

• Elective HFOV may offer a small reduction in CLD risk for preterm infants, but evidence is inconsistent.
• Potential benefits of HFOV may be offset by an increased risk of acute air leaks.
• Overall, HFOV did not demonstrate significant differences in mortality or long-term neurodevelopmental outcomes compared to CV.