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Prognostic indicators in congenital diaphragmatic hernia
G Dimitriou1, A Greenough, V Chan
1Department of Child Health, King's College Hospital, London, England.
Journal of Pediatric Surgery
|December 1, 1995
Summary
Lung function tests can predict outcomes for infants with congenital diaphragmatic hernia (CDH). A low respiratory system compliance (CRS) is a highly specific indicator of poor prognosis in neonates with CDH.
Area of Science:
- Pediatric Surgery
- Neonatology
- Respiratory Physiology
Background:
- Congenital diaphragmatic hernia (CDH) presents significant challenges with high mortality and morbidity rates.
- Accurate prediction of infant outcomes is crucial for effective management.
Purpose of the Study:
- To evaluate and compare various tests for predicting outcomes in infants diagnosed with CDH.
- To identify the most effective predictive markers for CDH patient prognosis.
Main Methods:
- Measurements included tidal volume and respiratory system compliance (CRS) preoperatively and postoperatively.
- Ventilation indexes and maximum Paco2 were recorded within the first 6 hours of life and postoperatively.
- Preoperative assessment of stomach position within the hemithorax was also noted.
Main Results:
- Twenty infants with CDH were studied; 6 experienced poor outcomes (death or prolonged oxygen dependence).
- A compliance of the respiratory system (CRS) below 0.18 mL/cm H2O/kg demonstrated 100% specificity for predicting poor outcomes.
- This CRS threshold showed 66% sensitivity in identifying infants with adverse prognoses.
Conclusions:
- Lung function measurements, particularly respiratory system compliance, are valuable tools for assessing infants with congenital diaphragmatic hernia.
- Early identification of poor prognostic indicators can guide clinical decision-making and resource allocation for CDH patients.