scholarly journals Prevalence of various Beta-lactamases in Enterobacteriaceae in a tertiary care hospital in South India: A Cross-sectional study

2021 ◽  
Vol 7 (3) ◽  
pp. 186-191
Author(s):  
Soumya Kaup ◽  
S Roopashree
Keyword(s):  
Tertiary Care ◽  
Resistance Mechanism ◽  
Control Measures ◽  
Resistance Pattern ◽  
Care Hospital ◽  
Beta Lactamase ◽  
Tertiary Care Centre ◽  
Cross Sectional ◽  
Strict Adherence ◽  
Extended Spectrum Beta Lactamase

Antimicrobial resistance among bacteria has constantly increased over the years with emergence of novel resistance mechanism among these versatile organisms. Identifying the resistance pattern of the isolates both regionally and globally is essential for the institution of appropriate antimicrobial therapy. This study was conducted to assess the prevalence of beta-Lactamase enzymes among species of Enterobacteriaceae.312 consecutive isolates belonging to the family of Enterobacteriaceae were included in the study conducted over a period of one year. After preliminary antibiotic susceptibility testing using standard guidelines, production of various beta-Lactamase enzymes was assessed by phenotypic methods.22.76% of the isolates were found to be Extended-Spectrum Beta-Lactamase producers, 37.82% were AmpC Beta-Lactamase producers and 7.37% of the isolates produced the Carbapenemase enzyme.Our study estimates the prevalence of various beta-Lactamase enzymes in isolates of Enterobacteriaceae in a tertiary care centre. The increase in production of these enzymes among bacteria necessitates the implementation of strict adherence to antibiotic policy and infection control measures.

scholarly journals Multidrug resistant Enterobacteriaceae from blood stream infections at a tertiary care hospital of Eastern Nepal

2020 ◽  
Author(s):  
Ajay Yadav ◽  
Narayan Raj Bhattarai ◽  
Basudha Khanal
Keyword(s):  
Blood Stream Infection ◽  
Tertiary Care ◽  
Blood Stream ◽  
Resistance Pattern ◽  
Care Hospital ◽  
Beta Lactamase ◽  
Isolation And Identification ◽  
Cross Sectional ◽  
Extended Spectrum Beta Lactamase ◽  
Disk Method

Abstract Background Blood stream infection (BSI) is one of the major causes of morbidity and mortality worldwide. It has poses significant challenge to the clinicians and clinical microbiologists alike. Therefore its accurate diagnosis, isolation and identification of causative agents with appropriate antibiotics is required. This study is aimed to find out resistance pattern, e.g. extended-spectrum-beta-lactamase (ESBL), AmpC, K1, carbapenemase and metallo-β-lactamase (MBL) among isolates obtained from BSI. Methods A cross-sectional study was conducted in the Department of Microbiology, BPKIHS from 1st September 2014 to 31st August 2015. Isolates were screened for ESBL, AmpC, K1, and carbapenemase production by ten disk method. Confirmation for ESBL was done phenotypically by using combined disk method recommended by CLSI, AmpC sterile disk method for AmpC and K1 by combined disk method. Metallo-beta-lactamase (MBL) production was detected by imipenem-ethylene-diamine-tetra acetic acid double disk synergy test. Results A total of 11,264 blood samples were collected from the patients suspected of Blood Stream Infection. Of these isolates, 192 (1.70%) were Enterobacteriaceae. Among them, 94 (49%) were ESBL, 51 (26.5%) were carbapenemase and 10 (5%) were AmpC producers. Of 51 carbapenemase producers, 22 (11.5%) were MBL producers. None of the isolates were found to produce K1 β-lactamase. A total of 64 (33.4%) isolates were MDR. Conclusion MDR Enterobacteriaceae is found to be prevalent in our set up as important cause of BSI.

scholarly journals A study on the bacterial isolates from blood cultures of a tertiary care hospital

2021 ◽  
Vol 7 (3) ◽  
pp. 171-174
Author(s):  
KMS Mohamed Ali ◽  
K Girija
Keyword(s):  
Tertiary Care ◽  
Bloodstream Infections ◽  
Diffusion Method ◽  
Resistance Pattern ◽  
Care Hospital ◽  
Bacterial Isolates ◽  
Tertiary Care Centre ◽  
Sensitivity Testing ◽  
Cross Sectional ◽  
Blood Samples

Blood stream infections are the most important and common cause of morbidity and mortality in tertiary care hospitals. Since the results are usually not available promptly a knowledge of epidemiologic and antimicrobial susceptibility pattern of blood pathogens is life saving and very useful for early treatment and recovery of patients. The aim of this study is to describe the epidemiological, bacterial profile and antimicrobial resistance pattern of bloodstream infections in a tertiary care centre.A prospective cross-sectional study was done on seven hundred and eight blood samples collected over a period of six months in the Microbiology laboratory. Blood samples collected under aseptic conditions were cultured by aerobic culture method. Identification of bacterial isolates were done using standard bacteriologic and biochemical testing methods and antibiotic sensitivity testing done by Kirby - Bauer disc diffusion method.Bacteria was isolated in 201 (28.3%) samples with highest rates among newborns 84(41.8%). The most frequent isolates were 111 (55.2%) followed by 49 (24.4%). Results showed high susceptibilities of CoNS 111 (100%) to Vancomycin, Linezolid and 51 (98%) to Meropenem. This study highlights the common prevalent bacteriological agents in bacteremia, their antibiotic susceptibility & resistance patterns. and multi drug resistant were the leading causes of septicaemia in our hospital with Vancomycin, Linezolid and Carbapenems the effective antibiotics against these pathogens respectively.

scholarly journals Metallo-Beta-Lactamase-Producing Acinetobacter spp. from Clinical Isolates at a Tertiary Care Hospital in Ghana

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Michael A. Olu-Taiwo ◽  
Japheth A. Opintan ◽  
Francis Samuel Codjoe ◽  
Akua Obeng Forson
Keyword(s):  
Tertiary Care ◽  
Multidrug Resistant ◽  
Control Measures ◽  
Clinical Isolates ◽  
Diffusion Method ◽  
Resistance Pattern ◽  
Care Hospital ◽  
Beta Lactamase ◽  
Infection Control Measures ◽  
Significant Difference

Metallo-beta-lactamase-producing Acinetobacter spp. is a major challenge for therapeutic treatment of nosocomial infections. This study is aimed at determining the prevalence of MBL-producing Acinetobacter spp. among 87 clinical isolates of Acinetobacter spp. from the Korle-Bu Teaching Hospital, Accra, between August 2014 and July 2015. Acinetobacter spp. was identified by standard bacteriological method, and resistance to different antibiotics was assessed with the Kirby–Bauer disc diffusion method. Meropenem-resistant Acinetobacter isolates were screened for enzyme activity using the modified Hodge test (MHT) and combined disc test (CDT). Additionally, multiplex PCR was used to determine MBL genes presence (blaVIM,blaIMP, and blaNDM). All Acinetobacter isolates showed high resistance to cefotaxime (90.8%), ceftazidime (75.9%), cotrimoxazole (70.1%), ciprofloxacin (64.4%), gentamicin (72.4%), levofloxacin (67.8%), and meropenem (59.8%). A total of 54 (62.1%) of Acinetobacter isolates were multidrug-resistant. Out of 52 (59.8%) meropenem-resistant Acinetobacter, 3 (5.8%) were carbapenemase producers by MHT, whilst, 23 (44.2%) were CDT positive. There was no significant difference between the resistance pattern of amikacin, ceftazidime, cotrimoxazole, ciprofloxacin, and meropenem amongst CDT-positive and CDT-negative isolates (p>0.05). A total of 7/87 (8.1%) CDT-positive Acinetobacter isolates harboured blaNDM; of these, 4 (57.1%) were from wound swabs, urine (n=2) (28.6%), and ear swab (n=1) (14.3%). The study revealed that less than 9% of Acinetobacter spp. contained blaNDM encoding genes. Strict antibiotics usage plan and infection control measures are required to prevent the spread of these resistance genes.

scholarly journals Gram Negative Extended Spectrum Beta-Lactamase Producing Bacteria Prevalence in Jouf Region Tertiary Care Hospital, Saudi Arabia

2021 ◽  
Author(s):  
Javid Iqbal Rather ◽  
Zahoor Mohi ud din ◽  
Farkhanda N. Syed ◽  
Mir Haris ◽  
Mudasar Nabi ◽  
...  
Keyword(s):  
Tertiary Care ◽  
Control Measures ◽  
Clinical Samples ◽  
Klebsiella Pneumonia ◽  
Care Hospital ◽  
Beta Lactamase ◽  
Extended Spectrum Beta Lactamase ◽  
Infection Control Measures ◽  
Antimicrobial Sensitivity ◽  
Extended Spectrum

Extended Spectrum beta lactamase producing pathogens are reported in many clinical samples and pose an emerging threat health. To find the prevalence of ESBL producing Enterobactriacea pathogens isolated from inpatients (Medical and Surgical Wards; Hospital stay > 72 h) admitted to Prince, Mutib, Hospital Sakaka, Jouf. A total of 1043 Enterobactriacea were isolated during April 2015 to October 2016 study period. Vitek -2 compact (biomeriux Leon, France) was used for identification and antimicrobial sensitivity (AST) test. A Total of 115/1043 (11.02%) ESBL producing pathogens were isolated from urine 15.07% (n=242), sputum 13.6 % (n=220), wound 10.8% (n=287) and blood 5.4 % (n=294). Klebsiella pneumonia is most dominant followed by E coli and Proteus miribilis. Cephamycins and carbapenems were found most effective (100% sensitivity) against the pathogens isolated. The aminoglycosides, beta lactams and Fluroquinolnes class of antibiotics, microorganisms have gained the resistance of 20%, 22.7%, 40-70% respectively. The infection control measures should be taken seriously and making of effective use of antibiotics is need of hour.

scholarly journals Antibiotic Resistance Pattern of Pseudomonas aeruginosa Isolated from Clinical Specimens from a Tertiary Care Centre in Central Kerala with Special Reference to Carbapenemase Detection

2021 ◽  
Author(s):  
P.M. Anooja ◽  
Anu P. John
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Antibiotic Resistance ◽  
Antimicrobial Susceptibility ◽  
Tertiary Care ◽  
Diffusion Method ◽  
Resistance Pattern ◽  
Disc Diffusion ◽  
Tertiary Care Centre ◽  
Cross Sectional ◽  
Extended Spectrum Beta Lactamase

Pseudomonas aeruginosa is inherently resistant to many drugs. It is now an emerging opportunistic pathogen of clinical relevance. The emergence of carbapenemases is another major concern. Initiation of appropriate therapy is of paramount importance thus highlighting the need of active surveillance for newer emerging resistance trends for better infection control. To study the resistance pattern of P. aeruginosa isolates obtained from lab specimens and to determine the production of ESBL and Carbapenemase among them. A hospital-based cross-sectional study was carried out in the Department of Microbiology, Government medical college Thrissur, among P. aeruginosa isolates obtained from lab specimens, from January 2018 – December 2018. 162 isolates were studied. Antimicrobial susceptibility testing was done by Kirby–Bauer disc diffusion method, extended-spectrum beta-lactamase (ESBL) production was confirmed by and phenotypic confirmatory disc diffusion test. Carbapenemase detection was done using the modified carbapenemase inactivation (mCIM) method. The obtained data was analysed. Among 162 isolates 83% were non- multidrug-resistant (MDR) strains and 17% were MDR strains. 22% of ceftazidime resistant isolates were ESBL producers. 6.2% isolates were resistant to imipenem. Among the imipenem resistant isolates, Carbapenemase production was seen in 30% isolates by mCIM test. According to our study, the most effective antibiotic against P. aeruginosa were imipenem and cefoperazone/sulbactam showing resistance in 6.3% and 6.9% isolates respectively. The diversity of antibiotic resistance mechanisms and the emergence of carbapenem resistance is a threat that limits treatment choices. This suggests the need for ongoing antimicrobial susceptibility studies in the future.

scholarly journals Detection of Extended Spectrum Beta-lactamase (ESBL) Producing Gram Negative Bacteria from Clinical Specimens of Sir Salimullah Medical College and Mitford Hospital.

2017 ◽  
Vol 10 (1) ◽  
pp. 8-12
Author(s):  
Shikha Paul ◽  
Sanya Tahmina Jhora ◽  
Prashanta Prasun Dey ◽  
Bilkis Ara Begum
Keyword(s):  
Tertiary Care ◽  
Gram Negative Bacteria ◽  
Care Hospital ◽  
Beta Lactamase ◽  
Gram Negative ◽  
Clinical Specimens ◽  
Extended Spectrum Beta Lactamase ◽  
Medical College ◽  
Extended Spectrum ◽  
Esbl Producers

Detection of Extended spectrum beta lactamase (ESBL) enzyme producing bacteria in hospital settings is vital as ESBL genes are transmissible. This study was carried out to determine the distribution of ESBL producing gram negative isolates at a tertiary care hospital in Dhaka city which deals with the patients hailing from relatively low socioeconomic status.Onehundred and twenty four gram negative bacteria isolated from different clinical specimens from outpatient and inpatient departments of Sir Salimullah Medical College and Mitford Hospital (SSMC & MH) were tested for ESBL by E test ESBL method in the department of microbiology of Sir Salimullah medical college (SSMC) from March 2013 to August 2013.Out of 124 gram negative bacteria 69 (55.65%) were positive for ESBL. Among the ESBL producers, Esch.coli was the highest (46.38%) which was followed by Serratia spp (11.59%), Enterobacter spp (10.14%), Proteus spp, (8.70%), Acinetobacter spp.(7.24%) and Klebsiella spp.(5.79%). Out of 32 Esch.coli isolated from outpatient department, 10 (31.25%) were positive for ESBL. On the other hand out of 27 Esch. coli isolated from inpatient department, 22 (81.48%) were positive for ESBL. The difference was statistically significant (p<0.001).So the present study reveals that the distribution of ESBL producers is more among the hospitalized patients than the patients of the community.Bangladesh J Med Microbiol 2016; 10 (1): 8-12

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