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  • Title: Palivizumab outcomes registry data from Spain: Infección Respiratoria Infantil por Virus Respiratorio Sincitial (IRIS) Study Group.
    Author: Carbonell-Estrany X.
    Journal: Pediatr Infect Dis J; 2003 Feb; 22(2 Suppl):S55-7; discussion S57. PubMed ID: 12671453.
    Abstract:
    Respiratory syncytial virus (RSV) is the leading cause of lower respiratory illness in children <2 years of age. Severe RSV infection requiring hospitalization is linked to gestational age, chronic cardiopulmonary conditions and immunosuppression. The Infección Respiratoria Infantil por Virus Respiratorio Sincitial (IRIS) Study group in Spain conducted two pivotal epidemiologic studies establishing that serious RSV illness among premature infants was responsible for high rehospitalization rates (approximately 13%). RSV lower respiratory tract illness also correlated with prolonged hospital stay and more intensive care unit admissions. In Europe recent availability of palivizumab, a humanized monoclonal antibody to RSV, is a major therapeutic advancement directed against prevention of lower respiratory tract infection secondary to this viral pathogen. To ensure proper and optimal usage of palivizumab, the IRIS group, in conjunction with the Spanish Neonatology Group, developed prophylaxis guidelines for neonates. Palivizumab prophylaxis is strongly recommended in premature infants < or =28 weeks gestation or those affected with chronic lung disease. Additionally, palivizumab is recommended for infants with a gestational age of 29 to 32 weeks, without evidence of chronic lung disease and who are <6 months old at the onset of the RSV season. It was thought that slightly older premature infants (33 to 35 weeks gestational age) should be assessed on an individual basis to determine whether prophylaxis is warranted. The IRIS Study Group is currently determining the effectiveness of these recommendations by measuring the incidence of RSV-related hospital admissions in infants born at < or =32 weeks gestational age who are receiving palivizumab prophylaxis.
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