TY - JOUR
T1 - Persistence of Streptococcus pneumoniae urinary antigen excretion after pneumococcal pneumonia
AU - Andreo, F.
AU - Prat, C.
AU - Ruiz-Manzano, J.
AU - Lores, L.
AU - Blanco, S.
AU - Cuesta, M. A.
AU - Giménez, M.
AU - Domínguez, J.
N1 - Funding Information:
Acknowledgments This work was supported by a grant from the Societat Catalana de Pneumologia (SOCAP) and the Fundació Catalana de Pneumologia (FUCAP). We thank the nurses’ aides and the nurses staff of the Hospital de Sant Boi and the Hospital Universitari Germans Trias i Pujol for technical assistance.
PY - 2009/2
Y1 - 2009/2
N2 - The aim of this study was to determine the duration of Streptoccocus pneumoniae antigen excretion in urine after pneumococcal pneumonia. Urinary antigen detection remained positive in nonconcentrated urine in 18 (52.9%) of the 34 patients in the first month after pneumonia diagnosis. In 12 of these positive cases, the test was still positive in the second month, in six patients after 4 months, and in two cases 6 months after the diagnosis of pneumonia. Using concentrated urine, antigenuria remained positive in all patients for at least 3 months, with antigen detected in three cases more than one year later. We did not observe a relation between age, gender, immunosuppression, underlying diseases, pneumonia severity, positive blood culture, or X-ray presentation and longer-term antigenuria excretion. However, the small number of patients evaluated is a limitation for statistical analysis. In order to correctly analyse a positive urinary antigen test result in patients with pneumonia, it is necessary to know which patients have recently had a previous episode of pneumonia.
AB - The aim of this study was to determine the duration of Streptoccocus pneumoniae antigen excretion in urine after pneumococcal pneumonia. Urinary antigen detection remained positive in nonconcentrated urine in 18 (52.9%) of the 34 patients in the first month after pneumonia diagnosis. In 12 of these positive cases, the test was still positive in the second month, in six patients after 4 months, and in two cases 6 months after the diagnosis of pneumonia. Using concentrated urine, antigenuria remained positive in all patients for at least 3 months, with antigen detected in three cases more than one year later. We did not observe a relation between age, gender, immunosuppression, underlying diseases, pneumonia severity, positive blood culture, or X-ray presentation and longer-term antigenuria excretion. However, the small number of patients evaluated is a limitation for statistical analysis. In order to correctly analyse a positive urinary antigen test result in patients with pneumonia, it is necessary to know which patients have recently had a previous episode of pneumonia.
UR - http://www.scopus.com/inward/record.url?scp=59449110632&partnerID=8YFLogxK
U2 - 10.1007/s10096-008-0606-3
DO - 10.1007/s10096-008-0606-3
M3 - Article
C2 - 18830727
AN - SCOPUS:59449110632
SN - 0934-9723
VL - 28
SP - 197
EP - 201
JO - European Journal of Clinical Microbiology and Infectious Diseases
JF - European Journal of Clinical Microbiology and Infectious Diseases
IS - 2
ER -