scholarly journals Multi-Drug Resistance Among Gram-Negative Bacteria in Thailand

2012 ◽  
pp. 75-89
Keyword(s):  
Drug Resistance ◽  
Multi Drug Resistance ◽  
Gram Negative Bacteria ◽  
Gram Negative

scholarly journals A high prevalence of multi-drug resistant Gram-negative bacilli in a Nepali tertiary care hospital and associated widespread distribution of Extended-Spectrum Beta-Lactamase (ESBL) and carbapenemase-encoding genes

2020 ◽  
Vol 19 (1) ◽  
Author(s):  
Sulochana Manandhar ◽  
Raphael M. Zellweger ◽  
Nhukesh Maharjan ◽  
Sabina Dongol ◽  
Krishna G. Prajapati ◽  
...  
Keyword(s):  
Drug Resistance ◽  
Tertiary Care ◽  
Multi Drug Resistance ◽  
Gram Negative Bacteria ◽  
Care Hospital ◽  
Global Public Health ◽  
Gram Negative ◽  
E Coli ◽  
Extended Spectrum ◽  
High Prevalence

Abstract Background Multi-drug resistance (MDR) and extensive-drug resistance (XDR) associated with extended-spectrum beta-lactamases (ESBLs) and carbapenemases in Gram-negative bacteria are global public health concerns. Data on circulating antimicrobial resistance (AMR) genes in Gram-negative bacteria and their correlation with MDR and ESBL phenotypes from Nepal is scarce. Methods A retrospective study was performed investigating the distribution of ESBL and carbapenemase genes and their potential association with ESBL and MDR phenotypes in E. coli, Klebsiella spp., Enterobacter spp. and Acinetobacter spp. isolated in a major tertiary hospital in Kathmandu, Nepal, between 2012 and 2018. Results During this period, the hospital isolated 719 E. coli, 532 Klebsiella spp., 520 Enterobacter spp. and 382 Acinetobacter spp.; 1955/2153 (90.1%) of isolates were MDR and half (1080/2153) were ESBL producers. Upon PCR amplification, blaTEM (1281/1771; 72%), blaCTXM-1 (930/1771; 53%) and blaCTXM-8 (419/1771; 24%) were the most prevalent ESBL genes in the enteric bacilli. BlaOXA and blaOXA-51 were the most common blaOXA family genes in the enteric bacilli (918/1771; 25%) and Acinetobacter spp. (218/382; 57%) respectively. Sixteen percent (342/2153) of all isolates and 20% (357/1771) of enteric bacilli harboured blaNDM-1 and blaKPC carbapenemase genes respectively. Of enteric bacilli, Enterobacter spp. was the most frequently positive for blaKPC gene (201/337; 60%). The presence of each blaCTX-M and blaOXA were significantly associated with non-susceptibility to third generation cephalosporins (OR 14.7, p < 0.001 and OR 2.3, p < 0.05, respectively).The presence of each blaTEM, blaCTXM and blaOXA family genes were significantly associated with ESBL positivity (OR 2.96, p < 0.001; OR 14.2, p < 0.001 and OR 1.3, p < 0.05 respectively) and being MDR (OR 1.96, p < 0.001; OR 5.9, p < 0.001 and OR 2.3, p < 0.001 respectively). Conclusions This study documents an alarming level of AMR with high prevalence of MDR ESBL- and carbapenemase-positive ESKAPE microorganisms in our clinical setting. These data suggest a scenario where the clinical management of infected patients is increasingly difficult and requires the use of last-resort antimicrobials, which in turn is likely to intensify the magnitude of global AMR crisis.

scholarly journals Escherichia Coli Isolate From Hospital Sewage Is Carrying blaNDM-1 and blaoxa-10

2021 ◽  
Author(s):  
Zimeng Hu ◽  
Weiye Chen ◽  
Genglin Guo ◽  
Chen Dong ◽  
Yun Shen ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Drug Resistance ◽  
Hospital Environment ◽  
Multi Drug Resistance ◽  
Resistant Bacteria ◽  
Gram Negative Bacteria ◽  
Gram Negative ◽  
Drug Resistant Bacteria ◽  
Hospital Sewage

Abstract Carbapenems, as the “last line of defense” against gram-negative bacteria, are increasingly being challenged by drug-resistant bacteria, especially in Enterobacteriaceae. In this study, a carbapenems resistant gram-negative bacterium, named AH001, was isolated from hospital sewage, and modified Hoge test confirmed this bacterium can produce carbapenemase. Further analysis revealed that this bacterium is multi-drug resistance, which against additional seven antibiotics. Whole-genome sequencing and analysis showed that AH001 could not be classified by existing MLST, and its serotype couldn’t be distinguished among O9, O89 or O168 in O antigen prediction. More attention should be paid to the role of environmental source Escherichia coli in the development and transfer of drug resistance in the hospital environment.

Re-thinking treatment strategies for febrile neutropenia in paediatric oncology population: A perspective from a developing country.

2020 ◽  
Author(s):  
Vinson James ◽  
Anand Prakash ◽  
Kayur Mehta ◽  
Tarangini Durugappa
Keyword(s):  
Escherichia Coli ◽  
Drug Resistance ◽  
Febrile Neutropenia ◽  
Tertiary Care ◽  
Automated System ◽  
Multi Drug Resistance ◽  
Gram Negative Bacteria ◽  
Drug Resistant ◽  
Gram Positive ◽  
Gram Negative

Abstract Background: This study was conducted to evaluate the microbiological profile of bacterial isolates in febrile neutropenia in a pediatric oncology unit, thereby, reviewing the use of restricted antibiotics and need for aggressive medical treatment accordingly.Methods: A prospective observational study was conducted in a paediatric haemat-oncology division of a tertiary care teaching hospital in southern India from September 2014 to August 2016. Children with febrile neutropenia were enrolled in the study. Blood cultures were performed using automated system. Cultures from other sites were obtained if needed, based on the clinical profile. Standard antibiotic susceptibility testing was done. Statistical analysis was done using SPSS.Results: One hundred and thirty children were enrolled for the study. Two hundred and fifty episodes of febrile neutropenia were studied. Three hundred and eighty four cultures were sent and 92 (24%) cultures were positive. There were 52.2% gram negative isolates followed 35.8% gram positive isolates, 6.5% fungal isolates and 5.5% poly-microbial cultures. Lactose fermenting gram negative bacteria (29 isolates, 31.5%) were the most frequently isolated in the gram negative group, with Escherichia coli being the most common organism (19 isolates, 20.6%). Amongst gram positive coagulase negative staphylococcus (CONS) was the most common (29%). Escherichia coli and NFGNB had only 36%, 25% sensitivity to ceftazidime respectively. Most gram negative bacteria were found to have better sensitivity to amikacin (mean: 57). There was a higher prevalence of extended spectrum beta lactamase producing organisms. 36 out of 48 GNB were found to be either multi/extremely/pan drug resistant. Escherichia coli and Klebsiella were often drug resistant. Significantly higher mortality was associated with gram negative isolates (61.5%)Conclusions: In view of higher prevalence of gram negative isolates and emergence of multi drug resistance, frequent audits of resistance patterns should guide the choice of antimicrobials in febrile neutropenia management. Our results show the importance of surveillance, monitoring resistance frequencies and identifying risk factors specific to each region. Given that significant mortality is attributed to drug resistant gram negative bacteria, early initiation of appropriate antibiotics to cover for drug resistance is required while formulating empirical antibiotic policies for febrile neutropenia in the oncology units in the developing world.

scholarly journals Re-thinking Treatment Strategies for Febrile Neutropenia in Paediatric Oncology Population: A Perspective from a Developing Country

2021 ◽  
Author(s):  
Vinson James ◽  
Anand Prakash ◽  
Kayur Mehta ◽  
Tarangini Durugappa
Keyword(s):  
Escherichia Coli ◽  
Drug Resistance ◽  
Febrile Neutropenia ◽  
Tertiary Care ◽  
Automated System ◽  
Multi Drug Resistance ◽  
Gram Negative Bacteria ◽  
Drug Resistant ◽  
Gram Positive ◽  
Gram Negative

Abstract Background: This study was conducted to evaluate the microbiological profile of bacterial isolates in febrile neutropenia in a pediatric oncology unit, thereby, reviewing the use of restricted antibiotics and need for aggressive medical treatment accordingly. Methods: A prospective observational study was conducted in a paediatric haemat-oncology division of a tertiary care teaching hospital in southern India from September 2014 to August 2016. Children with febrile neutropenia were enrolled in the study. Blood cultures were performed using automated system. Cultures from other sites were obtained if needed, based on the clinical profile. Standard antibiotic susceptibility testing was done. Statistical analysis was done using SPSS.Results: One hundred and thirty children were enrolled for the study. Two hundred and fifty episodes of febrile neutropenia were studied. Three hundred and eighty four cultures were sent and 92 (24%) cultures were positive. There were 52.2% gram negative isolates followed 35.8% gram positive isolates, 6.5% fungal isolates and 5.5% poly-microbial cultures. Lactose fermenting gram negative bacteria (29 isolates, 31.5%) were the most frequently isolated in the gram negative group, with Escherichia coli being the most common organism (19 isolates, 20.6%). Amongst gram positive coagulase negative staphylococcus (CONS) was the most common (29%). Escherichia coli and NFGNB had only 36%, 25% sensitivity to ceftazidime respectively. Most gram negative bacteria were found to have better sensitivity to amikacin (mean: 57). There was a higher prevalence of extended spectrum beta lactamase producing organisms. 36 out of 48 GNB were found to be either multi/extremely/pan drug resistant. Escherichia coli and Klebsiella were often drug resistant. Significantly higher mortality was associated with gram negative isolates (61.5%)Conclusions: In view of higher prevalence of gram negative isolates and emergence of multi drug resistance, frequent audits of resistance patterns should guide the choice of antimicrobials in febrile neutropenia management. Our results show the importance of surveillance, monitoring resistance frequencies and identifying risk factors specific to each region. Given that significant mortality is attributed to drug resistant gram negative bacteria, early initiation of appropriate antibiotics to cover for drug resistance is required while formulating empirical antibiotic policies for febrile neutropenia in the oncology units in the developing world.

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