Confirmed swine-origin influenza A (H1N1) viral pneumonia: computed tomographic findings in the immunocompetent and the immunocompromised

摘要: Aim:This study aimed to retrospectively evaluate the computed Ltomographic (CT) appearance of cases of swine-origin influenza A (H1N1) viral infection (S-OIV) in immunocompetent and immunocompromised patients confirmed with reverse transcription-polymerase chain reaction and to determine whether the timing of CT relative to the onset of symptoms affected the overall imaging appearance.Methods:A total of 23 patients (15 men and 8 women) from 2 tertiary care centers formed the final study population. Patients were divided into 2 groups based on their immune status: group 1 (n= 14) were patients who were immunocompromised, whereas group 2 (n= 9) were patients who were immunocompetent. The radiologic appearances of pulmonary abnormalities, distribution, and extent of involvement on the initial chest CT scan were documented, and correlation with the onset of symptoms was performed.Results …