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Does prematurity alter the course of respiratory syncytial virus infection?
K Meert1, S Heidemann, B Abella
1Department of Pediatrics, Wayne State University School of Medicine, Detroit, MI.
Insights
Premature infants hospitalized with respiratory syncytial virus (RSV) infection experienced more severe illness, including apnea and longer hospital stays. Prematurity increases the risk for prolonged and severe RSV disease.
Area of Science:
- Pediatrics
- Infectious Diseases
- Neonatology
Background:
- Respiratory Syncytial Virus (RSV) is a common cause of respiratory illness in infants.
- Premature infants may be at higher risk for severe RSV disease.
- Understanding the impact of prematurity on RSV clinical course is crucial for management.
Purpose of the Study:
- To compare the clinical course of RSV infection in previously healthy premature infants versus full-term infants.
- To evaluate the specific role of prematurity in the severity and duration of RSV illness.
Main Methods:
- A retrospective study comparing 484 previously healthy infants hospitalized with RSV infection.
- Data collected over a 5-year period (1984-1989).
- Comparison of presenting symptoms, chest roentgenogram findings, and clinical outcomes between premature and full-term infants.
Main Results:
- Premature infants were more likely to present with apnea compared to full-term infants.
- Higher incidence of atelectasis/infiltrate and hyperinflation on chest roentgenograms in premature infants.
- Premature infants experienced longer hospital stays and required more intensive interventions, including supplemental oxygen, ICU admission, and mechanical ventilation.
Conclusions:
- Premature birth is associated with an increased risk of more severe and prolonged respiratory syncytial virus (RSV) disease.
- Prematurity impacts the clinical presentation and management requirements for RSV infection.
- These findings highlight the vulnerability of premature infants to severe RSV outcomes.
Abstract:
We compared previously healthy prematurely born infants with full-term infants hospitalized with respiratory syncytial virus (RSV) infection to evaluate the role of prematurity on the clinical course of the illness. During a 5-yr period (1984 to 1989), 484 previously healthy patients were admitted to the hospital with RSV infection. No differences were found in the presenting symptoms of respiratory distress, cough, fever or shock, although the premature group was more likely to present with apnea (p less than .001). Chest roentgenograms revealed that premature infants had a higher incidence of atelectasis/infiltrate and hyperinflation (p less than .05). Premature infants had longer hospital stays as well as a higher Physiologic Stability Index and Therapeutic Intervention Score (p less than .001). They were also more likely to receive supplemental oxygen, ICU admission, mechanical ventilation, and nothing by mouth status (p less than .001). We conclude that premature birth increases the risk of more severe and prolonged RSV disease.