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Surfactant: current and potential therapeutic application in infants and adults
1Department of Medicine, University of Western Ontario, Lawson Research Institute, St. Joseph's Health Centre, London, Canada.
Insights
Exogenous surfactant therapy shows promise for Acute Respiratory Distress Syndrome (ARDS) but differs from neonatal RDS treatment. Understanding ARDS surfactant abnormalities is key to developing effective therapeutic strategies.
Area of Science:
- Pulmonology
- Critical Care Medicine
- Biochemistry
Background:
- Surfactant therapy is standard for neonatal respiratory distress syndrome (nRDS).
- Adult Acute Respiratory Distress Syndrome (ARDS) response to surfactant is inconsistent.
- Surfactant system dysfunction is a hallmark of ARDS.
Purpose of the Study:
- To review surfactant abnormalities in ARDS.
- To contrast ARDS surfactant issues with nRDS.
- To propose exogenous surfactant treatment approaches for ARDS.
Main Methods:
- Literature review of surfactant system in ARDS and nRDS.
- Analysis of factors influencing surfactant therapy response.
- Synthesis of potential therapeutic strategies.
Main Results:
- Neonatal RDS is primarily a deficiency state.
- ARDS involves complex surfactant system abnormalities beyond simple deficiency.
- Individual responses to exogenous surfactant vary significantly.
Conclusions:
- Exogenous surfactant for ARDS requires tailored approaches.
- Further research is needed to optimize surfactant therapy for ARDS patients.
- Understanding ARDS pathophysiology is crucial for treatment success.
Abstract:
Exogenous surfactant administration is currently being evaluated for the Acute Respiratory Distress Syndrome (ARDS). Although surfactant supplementation is now a routine therapy for babies born with neonatal RDS, this treatment modality for adults does not appear to result in a predictable improvement in lung function as is noted in neonates. This article will review the basic abnormalities of the surfactant system in patients with ARDS and contrast them with the primary surfactant deficient state of nRDS. Various factors that have been shown to influence an individual's response to exogenous surfactant will the be outlined. Finally, potential treatment approaches for patients with ARDS utilizing exogenous surfactant will be proposed.