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Published on: April 7, 2021
Respiratory Failure and Death in Vulnerable Premature Children With Lower Respiratory Tract Illness
Gaston Ofman1, Brad Pradarelli1, Mauricio T Caballero1,2
1Fundación INFANT, Buenos Aires, Argentina.
Insights
Premature infants in developing countries face high risks of respiratory failure and death from infections like RSV. Identifying risk factors such as malnutrition and heart disease is crucial for developing effective preventive strategies.
Area of Science:
- Pediatrics
- Infectious Diseases
- Public Health
Background:
- Developing countries face significant challenges in addressing respiratory failure (RF) and fatal lower respiratory tract infections (LRTI) in premature infants.
- Understanding risk factors is essential for implementing evidence-based preventive interventions in this vulnerable population.
Purpose of the Study:
- To characterize the burden of respiratory syncytial virus (RSV) and human metapneumovirus (hMPV) LRTI in premature children.
- To determine risk factors for RF and fatal outcomes in premature infants within a vulnerable population.
Main Methods:
- Prospective, population-based, cross-sectional study design.
- Enrollment of subjects with severe LRTI during the respiratory season.
- Investigation of risk factors for RF and mortality in premature infants.
Main Results:
- A total of 664 premature children were studied, with an LRTI hospitalization rate of 82.6/1000.
- RSV and hMPV infection rates were 40.9/1000 and 6.6/1000, respectively.
- RF occurred at 8.2/1000, and LRTI mortality was 2.2/1000. Never breastfeeding, malnutrition, younger than 6 months, congenital heart disease, and lower hematocrit were identified as RF risk factors.
Conclusions:
- Premature children under 2 years in vulnerable settings have higher rates of RF and mortality compared to full-term infants.
- Identified modifiable risk factors underscore the need for targeted, evidence-based interventions to improve outcomes.
Background:
Efforts to better understand the risk factors associated with respiratory failure (RF) and fatal lower respiratory tract infection (LRTI) in premature children in developing countries are necessary to elaborate evidenced-based preventive interventions. We aim to characterize the burden of respiratory syncytial virus (RSV) and human metapneumovirus (hMPV) LRTI in premature children and determine risk factors for RF and fatal illness in a vulnerable population.
Methods:
This is a prospective, population-based, cross-sectional study. Subjects with severe LRTI were enrolled during respiratory season. Risk factors for RF and death in premature infants were investigated.
Results:
A total of 664 premature children participated. Infant's hospitalization rate due to LRTI was 82.6/1000 (95% confidence interval [CI], 68.6-96.7/1000). Infant's RSV and hMPV rates were 40.9/1000 (95% CI, 36.3-45.6/1000) and 6.6/1000 (95% CI, 3.9-9.2/1000), respectively. The RF rate was 8.2/1000 (95% CI, 4.9-11.5/1000). The LRTI mortality was 2.2/1000 (95% CI, 0.7-3.7/1000); for RSV, the rate was 0.8/1000 (95% CI, 0-1.7/1000) with a case-fatality ratio of 1.8%. Never breastfeeding, malnutrition, younger than 6 months, congenital heart disease, and lower hematocrit were risk factors for RF. Experiencing pneumonia, pneumothorax, sepsis, or apnea were clinical determinants of poor outcomes.
Conclusions:
Premature children under 2 years old in vulnerable environments experience RF and death more often than term counterparts. Modifiable risk factors associated with poor outcomes should prompt evidence-based interventions.
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