The Urinary Antigen Tests have High Sensitivity in Diagnosis of Pneumococcus Caused Community-Acquired Pneumonia Posterior to Antimicrobial Therapy

Antibiotic treatment before microbiological test significant reduces the positive rate of culture methods of Streptococcus pneumoniae . The Binax NOW S. pneumoniae immunochromatographic test (ICT) has become a more commonly used procedure to diagnose S. pneumoniae from community-acquired pneumonia i...

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Veröffentlicht in:Cell biochemistry and biophysics 2014-11, Vol.70 (2), p.1029-1034
Hauptverfasser: Chen, Ming, Zhou, Ming, Xiao, Wei, Ai, Biao, Liu, Xuezheng, Li, Yan
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container_issue 2
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container_title Cell biochemistry and biophysics
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creator Chen, Ming
Zhou, Ming
Xiao, Wei
Ai, Biao
Liu, Xuezheng
Li, Yan
description Antibiotic treatment before microbiological test significant reduces the positive rate of culture methods of Streptococcus pneumoniae . The Binax NOW S. pneumoniae immunochromatographic test (ICT) has become a more commonly used procedure to diagnose S. pneumoniae from community-acquired pneumonia in adults. However, performance of this test after empirical antimicrobial therapy is uncertain. Therefore, in this prospective study, we evaluate the impact of antimicrobial therapy on sensitivity of ICT test in 487 hospitalized adult patients. The results showed that 192 (39.4 %) and 295 (60.6 %) specimens were collected before (Group 1) or after antibiotic treatment (Group 2), respectively. S. pneumoniae was detected by ICT in 21 (10.9 %) patients in the Group 1 and 39 (13.2 %) in the Group 2 and their positive rates were not different ( P  > 0.05). However, The positive rate of blood and pleural fluid was declined from 5.7 to 2.7 % and sputum, from 9.9 to 4.7 % after the antibiotic treatment, respectively. This study confirmed that the ICT urinary antigen test remained to have a high sensitivity for diagnosis of pneumococcal infection after empiric antibiotic treatment was started. The ICT urinary antigen test would have a potential to guide the right choice of therapy for pneumonia in adults earlier.
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The Binax NOW S. pneumoniae immunochromatographic test (ICT) has become a more commonly used procedure to diagnose S. pneumoniae from community-acquired pneumonia in adults. However, performance of this test after empirical antimicrobial therapy is uncertain. Therefore, in this prospective study, we evaluate the impact of antimicrobial therapy on sensitivity of ICT test in 487 hospitalized adult patients. The results showed that 192 (39.4 %) and 295 (60.6 %) specimens were collected before (Group 1) or after antibiotic treatment (Group 2), respectively. S. pneumoniae was detected by ICT in 21 (10.9 %) patients in the Group 1 and 39 (13.2 %) in the Group 2 and their positive rates were not different ( P  &gt; 0.05). However, The positive rate of blood and pleural fluid was declined from 5.7 to 2.7 % and sputum, from 9.9 to 4.7 % after the antibiotic treatment, respectively. This study confirmed that the ICT urinary antigen test remained to have a high sensitivity for diagnosis of pneumococcal infection after empiric antibiotic treatment was started. The ICT urinary antigen test would have a potential to guide the right choice of therapy for pneumonia in adults earlier.</abstract><cop>Boston</cop><pub>Springer US</pub><pmid>24845151</pmid><doi>10.1007/s12013-014-0015-4</doi><tpages>6</tpages></addata></record>
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subjects Adolescent
Adult
Aged
Aged, 80 and over
Anti-Bacterial Agents - pharmacology
Anti-Bacterial Agents - therapeutic use
Antigens, Bacterial - urine
Biochemistry
Biological and Medical Physics
Biomedical and Life Sciences
Biophysics
Biotechnology
Cell Biology
Community-Acquired Infections - diagnosis
Community-Acquired Infections - drug therapy
Community-Acquired Infections - urine
Female
Humans
Life Sciences
Male
Middle Aged
Original Paper
Pharmacology/Toxicology
Pneumonia - diagnosis
Pneumonia - drug therapy
Pneumonia - urine
Sensitivity and Specificity
Streptococcus pneumoniae
Streptococcus pneumoniae - drug effects
Streptococcus pneumoniae - immunology
Streptococcus pneumoniae - physiology
Young Adult
title The Urinary Antigen Tests have High Sensitivity in Diagnosis of Pneumococcus Caused Community-Acquired Pneumonia Posterior to Antimicrobial Therapy
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