Determinants of Mortality in High Frequency Oscillatory Ventilation for ARDS
Author Information
Author(s): Bollen Casper W, Uiterwaal Cuno SPM, van Vught Adrianus J
Primary Institution: University Medical Centre Utrecht, The Netherlands
Hypothesis
Does prolonged ventilation on conventional mechanical ventilation prior to high frequency oscillatory ventilation affect mortality in ARDS patients?
Conclusion
Prolonged ventilation on conventional mechanical ventilation prior to high frequency oscillatory ventilation was not related to mortality, while oxygenation index was an independent determinant of mortality.
Supporting Evidence
- Oxygenation index was associated with mortality independently of other disease markers.
- Prior time on conventional ventilation was not causally associated with higher mortality.
- The study included data from two randomized trials and seven observational studies.
Takeaway
This study looked at how different factors affect survival in patients with severe lung problems who are treated with a special type of breathing machine. It found that how long patients were on a regular machine before switching to the special one didn't really change their chances of survival.
Methodology
The study reviewed randomized trials and cohort studies, analyzing data on mortality and various determinants in patients treated with high frequency oscillatory ventilation.
Potential Biases
Bias inherent to observational research could not be excluded, although selective reporting was not considered a major problem.
Limitations
The study was limited to baseline characteristics and could not assess the sequential evolution of determinants over time.
Participant Demographics
Adult patients with acute respiratory distress syndrome.
Statistical Information
P-Value
1.20
Confidence Interval
1.15–1.25
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website