scholarly journals Transcriptional Analysis of MexAB-OprM Efflux Pumps System of Pseudomonas aeruginosa and Its Role in Carbapenem Resistance in a Tertiary Referral Hospital in India

PLoS ONE ◽  
2015 ◽  
Vol 10 (7) ◽  
pp. e0133842 ◽  
Author(s):  
Debarati Choudhury ◽  
Anupam Das Talukdar ◽  
Manabendra Dutta Choudhury ◽  
Anand Prakash Maurya ◽  
Deepjyoti Paul ◽  
...  
2021 ◽  
pp. e00908
Author(s):  
Ciluvya Kavimba Kaluba ◽  
Mulemba Tillika Samutela ◽  
Christine Kapesa ◽  
John Bwalya Muma ◽  
Bernard Mudenda Hang'ombe ◽  
...  

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Joycelyn Assimeng Dame ◽  
Natalie Beylis ◽  
James Nuttall ◽  
Brian Eley

Abstract Background This study describes the disease burden, clinical characteristics, antibiotic management, impact of multidrug resistance and outcome of Pseudomonas aeruginosa bloodstream infection (PABSI) among children admitted to a tertiary referral hospital for children in Cape Town, South Africa. Methods A retrospective descriptive study was conducted at a paediatric referral hospital in Cape Town, South Africa. Demographic and clinical details, antibiotic management and patient outcome information were extracted from medical and laboratory records. Antibiotic susceptibility results of identified organisms were obtained from the National Health Laboratory Service database. Results The incidence risk of PABSI was 5.4 (95% CI: 4.34–6.54) PABSI episodes / 10,000 hospital admissions and the most common presenting feature was respiratory distress, 34/91 (37.4%). Overall, 69/91 (75.8%) of the PA isolates were susceptible to all antipseudomonal antibiotic classes evaluated. Fifty (54.9%) of the PABSI episodes were treated with appropriate empiric antibiotic therapy. The mortality rate was 24.2% and in multivariable analysis, empiric antibiotic therapy to which PA isolates were not susceptible, infections present on admission, and not being in the intensive care unit at the time that PABSI was diagnosed were significantly associated with 14-day mortality. Conclusions PABSI caused appreciable mortality, however, appropriate empiric antibiotic therapy was associated with reduced 14-day mortality.


PLoS ONE ◽  
2016 ◽  
Vol 11 (3) ◽  
pp. e0151308 ◽  
Author(s):  
Debarati Choudhury ◽  
Anamika Ghose ◽  
Debadatta Dhar Chanda ◽  
Anupam Das Talukdar ◽  
Manabendra Dutta Choudhury ◽  
...  

2020 ◽  
Author(s):  
Joycelyn Assimeng Dame ◽  
Natalie Beylis ◽  
James Nuttall ◽  
Brian Eley

Abstract Background: This study describes the disease burden, clinical characteristics, antibiotic management, impact of multidrug resistance and outcome of Pseudomonas aeruginosa bloodstream infection (PABSI) among children admitted to a tertiary referral hospital for children in Cape Town, South Africa.Methods: A retrospective descriptive cohort study was conducted at a paediatric referral hospital in Cape Town, South Africa. Demographic and clinical details, antibiotic management and patient outcome information were extracted from medical and laboratory records. Antibiotic susceptibility results of identified organisms were obtained from the National Health Laboratory Service database.Results: The overall incidence risk of PABSI was 5.4 PABSI episodes / 10,000 hospital admissions and the most common presenting feature was respiratory distress, 34/91 (37.4%). Overall, 69/91 (75.8%) of the PA isolates were susceptible to all antipseudomonal antibiotic classes evaluated. Fifty (54.9%) of the PABSI episodes were treated with appropriate empiric antibiotic therapy. The mortality rate was 24.2% and in multivariable analysis, empiric antibiotic therapy to which PA isolates were not susceptible, infections present on admission, and not being in the intensive care unit at the time that PABSI was diagnosed were significantly associated with 14-day mortality.Conclusions: The study provided insight into factors associated with PABSI in a tertiary hospital in Sub-Saharan Africa. Empiric antipseudomonal antibiotic therapy was associated with a decrease in 14-day mortality.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Alireza Abdollahi ◽  
Amir Aliramezani ◽  
Mohammadreza Salehi ◽  
Mahsa Norouzi Shadehi ◽  
Sedighe Ghourchian ◽  
...  

Abstract Background Carbapenem-resistant Acinetobacter baumannii (CRAB) is among the most concerning cause of healthcare-associated infections (HAI) due to its high level of antibiotic resistance and high mortality. In the era of the COVID-19 pandemic, the key priority of infection control committees is to contain the dissemination of antibiotic resistant Gram-negative bacteria. Here, we aimed to timely recognize the emergence of CRAB in COVID-19 cases admitted to the wards of a tertiary referral hospital and to identify the genetic relatedness of the isolates. Methods From 30 March to 30 May 2020, a total of 242 clinical samples from COVID-19 cases were screened for CRAB isolates using standard microbiologic and antibiotic susceptibility tests. The PCRs targeting oxa23, oxa24, oxa58, blaTEM and blaNDM-1 genes were performed. Two multiplex PCRs for identifying the global clones (GC) of A. baumannii were also performed. The sequence type of CRABs was determined using Institut Pasteur (IP) multilocus sequence typing (MLST) scheme. Results Eighteen CRAB isolates were recovered from COVID-19 patients with the mean age of 63.94 ± 13.8 years. All but 4 COVID-19 patients co-infected with CRAB were suffering from an underlying disease. Death was recorded as the outcome in ICUs for 9 (50%) COVID-19 patients co-infected with CRAB. The CRAB isolates belong to GC2 and ST2IP and carried the oxa23 carbapenem resistance gene. Conclusion This study demonstrated the co-infection of CRAB isolates and SARS-CoV-2 in the patients admitted to different ICUs at a referral hospital in Tehran. The CRAB isolates were found to belong to ST2IP, share the oxa23 gene and to have caused several outbreaks in the wards admitting COVID-19 patients.


2016 ◽  
Vol 143 (6) ◽  
pp. 826 ◽  
Author(s):  
Amitabha Bhattacharjee ◽  
Deepjyoti Paul ◽  
AnandPrakash Maurya ◽  
DebadattaDhar Chanda ◽  
GauriDutt Sharma ◽  
...  

PLoS ONE ◽  
2016 ◽  
Vol 11 (2) ◽  
pp. e0149156 ◽  
Author(s):  
Debarati Choudhury ◽  
Anamika Ghosh ◽  
Debadatta Dhar Chanda ◽  
Anupam Das Talukdar ◽  
Manabendra Dutta Choudhury ◽  
...  

2020 ◽  
Author(s):  
Joycelyn Assimeng Dame ◽  
Natalie Beylis ◽  
James Nuttall ◽  
Brian Eley

Abstract Background This study describes the disease burden, clinical characteristics, antibiotic management, impact of multidrug resistance and outcome of Pseudomonas aeruginosa bloodstream infection (PABSI) among children admitted to a tertiary referral hospital for children in Cape Town, South Africa. Methods A retrospective descriptive study was conducted at a paediatric referral hospital in Cape Town, South Africa. Demographic and clinical details, antibiotic management and patient outcome information were extracted from medical and laboratory records. Antibiotic susceptibility results of identified organisms were obtained from the National Health Laboratory Service database.Results The incidence risk of PABSI was 5.4 (95% CI: 4.34-6.54) PABSI episodes / 10,000 hospital admissions and the most common presenting feature was respiratory distress, 34/91 (37.4%). Overall, 69/91 (75.8%) of the PA isolates were susceptible to all antipseudomonal antibiotic classes evaluated. Fifty (54.9%) of the PABSI episodes were treated with appropriate empiric antibiotic therapy. The mortality rate was 24.2% and in multivariable analysis, empiric antibiotic therapy to which PA isolates were not susceptible, infections present on admission, and not being in the intensive care unit at the time that PABSI was diagnosed were significantly associated with 14-day mortality.Conclusions PABSI caused appreciable mortality, however, appropriate empiric antibiotic therapy was associated with reduced 14-day mortality. Keywords: Pseudomonas aeruginosa bloodstream infection, children, Sub-Saharan Africa.


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