scholarly journals Detection of Mycoplasma fermentans in broncho-alveolar lavage fluid specimens from AIDS patients with lower respiratory tract infection

HIV Medicine ◽  
2000 ◽  
Vol 1 (4) ◽  
pp. 219-223 ◽  
Author(s):  
Jg Ainsworth ◽  
J Clarke ◽  
M Lipman ◽  
D Mitchell ◽  
D Taylor-Robinson
2013 ◽  
Vol 03 (03) ◽  
pp. 201-206 ◽  
Author(s):  
Ofonime Mark Ogba ◽  
Lydia Nyong Abia-Bassey ◽  
James Epoke ◽  
Baki Idasa Mandor ◽  
Godwin Dickson Iwatt

2021 ◽  
Author(s):  
Joel Iko-ojo Oguche ◽  
Rebecca Olajumoke Bolaji ◽  
Josiah Ademola Onaolapo ◽  
Samuel Eneojo Abah ◽  
Vivian Gga Kwaghe ◽  
...  

Lower Respiratory Tract Infection (LRTI) is associated with mortality and prolonged antibiotics use among HIV/AIDS patients. Sputum samples were collected from 134 HIV/AIDS patients with LRTI and productive cough, visiting University of Abuja Teaching Hospital, Nigeria, to determine the bacterial aetiologies and antibiotic resistance profile. Adequate for culture sputum samples were observed in only 119 subjects (75 females and 44 males) and cultured using standard procedure. Isolates were identified by biochemical method and 16SrRNA gene amplification, purification, sequencing and database nucleotide blast. Antibiotic susceptibility tests were performed and interpreted according to Clinical and Laboratory Standard Institute (CLSI) procedures. Bacteria associated LRTI was found in 20.2% of the patients and Klebsiella pneumonia (29.7%); Enterobacter cloacae (16.7%); Enterobacter hormaechei subsp. xiangfangensis (12.5%); Pseudomonas parafulva; Pseudomonas aeruginosa; Pseudomonas alcaliphila; Klebsiella aerogenes (8.3%); Comamonas testosteroni; Escherichia coli; Acinetobacter junii; Acinetobacter soli and Acinetobacter baumannii were implicated. Isolates show high resistance to amoxicillin-clavulanic acid at 94.1%, trimethoprim-sulfamethoxazole at 75.0% and cefotaxime at 70.0%. The Multiple Antibiotic Resistance (MAR) index of most isolates (62.5%) is within 0.3-0.8 in a range of 0.0 to 0.8. Isolates of the same species were found to have different MAR index in different patients. However, E. cloacae, E. hormaechei subsp. xiangfangensis, A. baumanni and 71.4% of K. pneumonia were Multi-drug Resistant (MDR). Interestingly, Gentamycin, Ciprofloxacin and Imipenem were effective against MDR isolates and showed significant negative correlation with MAR index. We propose that antibiotics with efficacy against MDR isolates could be used to down regulate the selective pressure of other antibiotics, and these MDR pathogens, including those rarely associated with human infection poses potential threat, similar to Methicillin Resistant Staphylococcus aureus (MRSA). Particularly, among the immunocompromised. Furthermore, HIV/AIDS patients present good metrics for profiling the burden and spread of antibiotic resistant bacteria in poor countries.


2020 ◽  
Author(s):  
Lei Tian ◽  
Zhongju Chen ◽  
Feng He ◽  
Ziyong Sun

Abstract Background: Lower respiratory tract infection (LRI) is a very common clinical disease. The etiological diagnosis of LRI often depends on the result of sputum culture. Sputum is the most common specimen type of LRI in China, but its cultivation result is easily confused by the bacteria colonized in the oral cavity and pharynx. It is very difficult to evaluate the clinical significance of sputum culture results both for clinicians and microbiologists. Fortunately, bronchoscope alveolus lavage fluid(BALF)is a good specimen, whose culture results can accurately reflect the situation of LRI. By analyzing the culture results and antimicrobial agents sensitivity data of BALF accumulated in this area, we can provide reference for clinicians to experience in the treatment of lower respiratory tract infection.Methods: The accumulated data of BALF culture and antimicrobial susceptibility test in our hospital from January 2015 to October 2019 were reviewed and analyzed.Results: The positive rate of BALF culture in our hospital was 18.3% (3467/18935) in 2015-2019. The most common pathogens were Klebsiella pneumoniae (18.1%, 627/3467), Pseudomonas aeruginosa (16.9%, 587/3467) and Acinetobacter baumannii (14.0%, 485/3467). For the eight most common pathogens (K. pneumoniae, P. aeruginosa, A. baumannii, Staphylococcus aureus, Haemophilus influenzae, Stenotrophomonas maltophilia, Escherichia coli and S. pneumoniae), 40-70 years old was the highest age of distribution, but for E. coli and S. pneumoniae, 0-5 years old was also the higher age of distribution. The antibiotic resistance rate of K. pneumoniae to imipenem and meropenem was 30.6% and 30.8%, respectively. The sensitivity of P. aeruginosa to antibiotics other than minocycline and ticarcillin clavulanic acid was all more than 60%. However, the resistance rate of A. baumannii to antibiotics other than tegacyclin and minocycline was all more than 80%.Conclusions: 40-70 years old was the high incidence age of lower respiratory tract bacterial infection. K. pneumoniae resistant to carbapenems (CR-K. pneumoniae) and A. baumannii were a great challenge to clinical treatment and bacterial resistance control.


2021 ◽  
Vol 8 (1) ◽  
pp. e000761
Author(s):  
Hendrik Johannes Prins ◽  
Ruud Duijkers ◽  
Johannes M A Daniels ◽  
Thys van der Molen ◽  
Tjip S van der Werf ◽  
...  

BackgroundWe developed the chronic obstructive pulmonary disease (COPD)-Lower Respiratory Tract Infection-Visual Analogue Score (c-LRTI-VAS) in order to easily quantify symptoms during exacerbations in patients with COPD. This study aimed to validate this score.MethodsIn our study, patients with stable COPD as well as those with an acute exacerbations of COPD (AECOPD) were included. The results of c-LRTI-VAS were compared with other markers of disease activity (lung function parameters, oxygen saturation and two health related quality of life questionnaires (St Georges Respiratory Questionnaire (SGRQ) and Clinical COPD Questionnaire (CCQ)) and validity, reliability and responsiveness were assessed.ResultsEighty-eight patients with clinically stable COPD and 102 patients who had an AECOPD completed the c-LRTI-VAS questionnaire. When testing on two separate occasions for repeatability, no statistically significant difference between total scores was found 0.143 (SD 5.42) (p=0.826). Internal consistency was high across items (Cronbach’s apha 0.755). Correlation with SGRQ and CCQ total scores was moderate to high. After treatment for hospitalised AECOPD, the mean c-LRTI-VAS total score improved 8.14 points (SD 9.13; p≤0.001).Conclusionsc-LRTI-VAS showed proper validity, responsiveness to change and moderate to high correlation with other questionnaires. It, therefore, appears a reliable tool for symptom measurement during AECOPD.Trial registration numberNCT01232140.


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