This study aimed to learn the recurrence rate in the retreatment TB patients with sputum smear and/or culture positive （ss＋ and/or c＋） two years after they were declared cured, and to explore causes of recurrence ...This study aimed to learn the recurrence rate in the retreatment TB patients with sputum smear and/or culture positive （ss＋ and/or c＋） two years after they were declared cured, and to explore causes of recurrence in order to improve long-time treatment outcome. 5 cities were selected as research locations. Recurrence of TB was judged by chest X-ray examination together with sputum smear and culture examination.展开更多
Background： It is important to achieve the definitive pathogen identification in hospital-acquired pneumonia （HAP）, but the traditional culture results always delay the target antibiotic therapy. We assessed the me...Background： It is important to achieve the definitive pathogen identification in hospital-acquired pneumonia （HAP）, but the traditional culture results always delay the target antibiotic therapy. We assessed the method called quantitative loop-mediated isothermal amplification （qLAMP） as a new implement for steering of the antibiotic decision-making in HAP. Methods： Totally, 76 respiratory tract aspiration samples were prospectively collected from 60 HAP patients. DNA was isolated from these samples. Specific DNA fragments for identifying 11 pneumonia-related bacteria were amplified by qLAMP assay. Culture results of these patients were compared with the qLAMP results. Clinical data and treatment strategies were analyzed to evaluate the effects of qLAMP results on clinical data. McNemar test and Fisher＇s exact test were used for statistical analysis. Results： The detection of Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumonia, Stenotrophomonas maltophilia, Streptococcus pneumonia, and Acinetobacter baumannii by qLAMP was consistent with sputum culture （P 〉 0.05）. The qLAMP results of 4 samples for Haemophilus influenzae, Legionella pneumophila, or Mvcoplasma pneumonia （MP） were inconsistent with culture results; however, clinical data revealed that the qLAMP results were all reliable except 1 MP positive sample due to the lack of specific species identified in the final diagnosis. The improvement of clinical condition was more significant （P 〈 0.001） in patients with pathogen target-driven therapy based on qLAMP results than those with empirical therapy. Conclusion： qLAMP is a more promising method for detection of pathogens in an early, rapid, sensitive, and specific manner than culture.展开更多
基金supported by ‘Follow-up Study of Retreatment TB Patients with Sputum Smear Positive Two Years after Declared Cured’(TB10-002)
文摘This study aimed to learn the recurrence rate in the retreatment TB patients with sputum smear and/or culture positive （ss＋ and/or c＋） two years after they were declared cured, and to explore causes of recurrence in order to improve long-time treatment outcome. 5 cities were selected as research locations. Recurrence of TB was judged by chest X-ray examination together with sputum smear and culture examination.
文摘Background： It is important to achieve the definitive pathogen identification in hospital-acquired pneumonia （HAP）, but the traditional culture results always delay the target antibiotic therapy. We assessed the method called quantitative loop-mediated isothermal amplification （qLAMP） as a new implement for steering of the antibiotic decision-making in HAP. Methods： Totally, 76 respiratory tract aspiration samples were prospectively collected from 60 HAP patients. DNA was isolated from these samples. Specific DNA fragments for identifying 11 pneumonia-related bacteria were amplified by qLAMP assay. Culture results of these patients were compared with the qLAMP results. Clinical data and treatment strategies were analyzed to evaluate the effects of qLAMP results on clinical data. McNemar test and Fisher＇s exact test were used for statistical analysis. Results： The detection of Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumonia, Stenotrophomonas maltophilia, Streptococcus pneumonia, and Acinetobacter baumannii by qLAMP was consistent with sputum culture （P 〉 0.05）. The qLAMP results of 4 samples for Haemophilus influenzae, Legionella pneumophila, or Mvcoplasma pneumonia （MP） were inconsistent with culture results; however, clinical data revealed that the qLAMP results were all reliable except 1 MP positive sample due to the lack of specific species identified in the final diagnosis. The improvement of clinical condition was more significant （P 〈 0.001） in patients with pathogen target-driven therapy based on qLAMP results than those with empirical therapy. Conclusion： qLAMP is a more promising method for detection of pathogens in an early, rapid, sensitive, and specific manner than culture.
