[Influenza A H1N1 respiratory infection: radiologic findings and correlation with clinical outcome in pediatric inpatients. A pediatric hospital experience].
In the year 2009, the World Health Organization declared the Influenza A H1N1 virus as a pandemic. It has been reported that the radiographic pattern in chest x-ray may predict the clinical outcome in patients affected.



To describe the chest x-ray findings in pediatrics patients with confirmed diagnosis of Influenza H1N1 respiratory infection and its correlation with clinical evolution.



A retrospective, analytic and descriptive study of 47 pediatric inpatients with confirmed diagnosis of H1N1 influenza who had available chest x-ray was performed. Medical records were reviewed for underlying medical conditions and patient's outcome.



94% of patients had abnormal x-ray. Consolidation and ground-glass opacities had significantly higher frequency in patients who needed more days of oxygen supplement. Initial chest x-ray with lobar consolidation was observed in patients with greater risk of Intensive care unit admission.



The most frequent radiological patterns found were ground-glass opacities and peribronchial markings. Lobar consolidation and ground-glass opacities are associated with adverse outcome.
Coordinación de Diagnóstico por Imágenes, Hospital Nacional de Pediatría Prof. Dr. Juan P. Garrahan, Buenos Aires. dteplisky@garrahan.edu.ar
Darío J
DJ
Teplisky
Mónica
M
Galeano
Elizabeth V
EV
Tedesco
Carolina V
CV
Gonseski
Paola A
PA
Sánchez Salinas
Carlos
C
Blanco
Verónica B
VB
Ametller
Silvia M
SM
Moguillansky
D002648:Child; D002675:Child, Preschool; D006776:Hospitals, Pediatric; D006801:Humans; D007223:Infant; D053118:Influenza A Virus, H1N1 Subtype; D007251:Influenza, Human / Q000175:diagnosis / Q000000981:diagnostic imaging*; D007297:Inpatients; D011859:Radiography; D012189:Retrospective Studies