scholarly journals Antimicrobial Resistance Profile among clinical isolated bacteria at Wolaita Sodo University Teaching Referral Hospital, three year retrospective cohort study

2020 ◽  
Author(s):  
Temesgen Ageru Anjulo ◽  
Habtamu Seid ◽  
Temesgen Sidamo ◽  
Tamrat Balcha ◽  
Temesgen Lera
Keyword(s):  
Logistic Regression ◽  
Antimicrobial Resistance ◽  
Referral Hospital ◽  
University Teaching ◽  
P Value ◽  
Multiple Logistic Regression ◽  
Gram Positive ◽  
Gram Negative ◽  
E Coli ◽  
Wolaita Sodo

Abstract Background Antibiotic resistance is public threats in globally and its problem not well concerned in sub Saharan Africa including Ethiopia due to inadequate set up. However, there is information gap in resistance of antibiotic and its pattern for physicians who prescribe. Therefore, the aim of this study was to review the antimicrobial resistance pattern of bacterial isolated from different specimens inoculated retrospectively at Wolaita Sodo University Teaching Referral Hospital, Southern Ethiopia. Methods A 3 year retrospective data of culture and antibiotic sensitivity pattern analyzed from 2016–2018 among 330 patients records at Wolaita Sodo university Teaching Referral hospital. The data extracted were clinical samples taken, age, sex, bacteria growth status, bacteria isolated, antibiotic resistance profile and trend in each year.The data entry was done using Epidata version 3.5.1 and exported to SPSS version 21 software for cleaning and statistical analysis.Bivariable analysis was done and variables with p-value of less than 0.25 were made candidate for multiple logistic regression analysis. The relative contribution of each selected variables to the outcome of interest was assessed using multiple logistic regression and variables with P-value less than 0.05 were considered as statically significant. Results A total of 330 samples fulfills inclusion criteria were extracted from microbiology laboratory, 150 samples were become culture positive for bacteria isolates. From positive culture growth, 110 (73.3%) was gram positive bacteria and 40(26.7%) gram negative. A staphylococcus auras (S.auras) was the most prevalent isolate 97 (61.3%) from gram positive isolates and Escherichia coli (E. coli) 19(12.7%) was gram negative. From gram positive isolates S. auras was 53% and S. saprophytes 62%, S. pyogen 74% and S.pneumonia 52% resistance to antibiotics. Overall resistance for all antimicrobial resistance of gram negative of E. coli was 62%, P. aurogenous 75%, proteusspp 65%, shigellaspp 66%, salmonella 56% and NisseriaSpp 63%.Overall antimicrobial resistance of gram positive isolates was 54.2% gram negative bacteria was 60.0%

scholarly journals Antimicrobial Resistance Profile of Clinically Isolated Bacteria at Wolaita Sodo University Teaching Referral Hospital

2021 ◽  
Author(s):  
Temesgen Anjulo ◽  
Habtamu Seid ◽  
Temesgen Sidamo ◽  
Tamrat Balcha ◽  
Temesgen Lera Abiso
Keyword(s):  
Antibiotic Resistance ◽  
Antimicrobial Resistance ◽  
Referral Hospital ◽  
Sub Saharan Africa ◽  
University Teaching ◽  
Gram Negative Bacteria ◽  
Gram Positive ◽  
Gram Negative ◽  
Sensitivity Pattern ◽  
Wolaita Sodo

Abstract Background: Antibiotic resistance is a serious threat to the human populations everywhere. However, less attention is given to its concern in sub-Saharan Africa including Ethiopia. There is information gap for the prescribers regarding antibiotic resistance and its pattern. The aim of this study was to review the antimicrobial resistance pattern of bacteria in Wolaita Sodo University Teaching Referral Hospital. Methods: Three years retrospective data of cultures and records of 330 patients were used to analyze the antibiotic sensitivity pattern. The statistical softwares including Epidata 3.5.1 and SPSS version 21 were used. Laboratory records lacking age, sex, culture isolation or drug susceptibility test data were excluded. Results: Out of 330 samples extracted from the microbiology laboratory, 150 samples were culture positive for bacteria isolates. From positive culture growth, 73.3% were gram positive bacteria whereas 26.7% were gram negative. Staphylococcus aureus was the most prevalent isolate among gram-positive isolates as Escherichia coli was for gram negative isolates. Overall antimicrobial resistance of gram positive isolates was 54.2% where as that of gram negative bacteria was 60.0%.Conclusion: As per this study, S. aureus and E. coli were the pathogenic isolates of highest prevalence among gram positive and gram-negative bacteria, respectively, in the study population. Most of the isolated pathogens showed high resistance towards the commonly prescribed antimicrobial agents.

Bacterial Pattern of Community acquired Urinary Tract Infections: A Challenge for Antimicrobial Resistance

2021 ◽  
Vol 30 (3) ◽  
pp. 153-162
Author(s):  
Nader A. Nemr ◽  
Rania M. Kishk ◽  
Mohammed Abdou ◽  
Hassnaa Nassar ◽  
Noha M Abu bakr Elsaid ◽  
...  
Keyword(s):  
Urinary Tract ◽  
Antimicrobial Resistance ◽  
Bacterial Infections ◽  
Diffusion Method ◽  
Gram Negative Bacteria ◽  
Isolation And Identification ◽  
Gram Positive ◽  
Gram Negative ◽  
E Coli ◽  
Tract Infections

Background: Urinary tract infection (UTI) is considered one of the most common bacterial infections seen in health care. To our knowledge, there is no available antimicrobial resistance surveillance system for monitoring of community-acquired UTIs (CA- UTIs) in our country. Objectives: we aimed to discuss the bacterial pattern and resistance profile of CA-UTIs in Ismailia, Egypt. Methods: This cross-sectional study included 400 patients suffering from symptoms of acute UTIs. Urine specimens were collected by clean-catch mid-stream method, examined microscopically and inoculated immediately on blood agar and MacConkey's agar plates. Colony counting, isolation and identification of the urinary pathogens were performed by the conventional biochemical tests according to the isolated organism. Antibiotic susceptibility testing was performed by Kirby Bauer disk diffusion method. Interpretation was performed according to Clinical Laboratory Standard Institute (CLSI) guidelines. Results: out of 400 specimens, 136 of them revealed no bacterial growth or insignificant bacteriuria. Most of participants with UTI were females (81.8%) (p=0.008) and 54.5% of them were married (P=0.1). Gram negative bacteria were more common than Gram positive representing 66 % and 34% respectively. E. coli was the most common isolated organism (39%) followed by S. aureus (32%), K. Pneumoniae and Pseudomonas (10.5% for each), Proteus (6%) and Enterococci (2%). E. coli isolates showed the highest susceptibility to imipenem, meropenem, amikacin, nitrofurantoin, levofloxacin and ciprofloxacin. Most of our patients were diabetics (64.8%) (p=0.004). The mean ± SD of HbA1c was 6.4±2.0 with 4 to 12.6 range, S.E was 0.1 and 95% C.I was 6.2- 6.7. The highest mean ± SD of HbA1c was in S. aureus infections. Conclusion: Gram negative bacteria were most common than Gram positive with predominance of E. coli with significant relation to the presence of diabetes.

scholarly journals Microbial Predominance and Antimicrobial Resistance in a Tertiary Hospital in Northwest China: A Six-Year Retrospective Study of Outpatients and Patients Visiting the Emergency Department

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Caifeng Wang ◽  
Wen Li ◽  
Juanjuan Gao ◽  
Dancheng Zhang ◽  
Yali Li ◽  
...  
Keyword(s):  
Emergency Department ◽  
Retrospective Study ◽  
Antimicrobial Resistance ◽  
Northwest China ◽  
Tertiary Hospital ◽  
Diffusion Method ◽  
Gram Positive ◽  
Gram Negative ◽  
E Coli ◽  
Local Healthcare

Background. With the wide use of antibiotics, antimicrobial resistance becomes a serious issue. Timely understanding of microbial pathogen profiles and the change of antimicrobial resistance provide an important guidance for effective and optimized use of antibiotics in local healthcare systems. The aim was to investigate the characteristics of microbial species and their antimicrobial resistances in a tertiary hospital with an Emergency Department and outpatient clinics for a period of six years. Methodology. A retrospective study was conducted using the HIS database of a tertiary hospital between 2013 and 2018. Antimicrobial susceptibility was tested by automated systems and/or the Kirby–Bauer disc diffusion method. The data were analyzed using the WHONET 5.6 software. The Cochran-Armitage test was used to study the trends over the period of research. Results. In a total of 19,028 specimens submitted for microbial tests during the period from 49 units of the hospital, only the samples from the Emergency Department and Kidney Transplantation Clinic showed an annually significant increase ( P < 0.001 ). More than 200 species with 46.4% gram-positive cocci and 45.3% gram-negative bacilli were identified in the 3,849 nonrepetitive isolates. The methicillin-resistant S. aureus and S. epidermidis rates were 25.1% and 74.6%, respectively. 60.9% E. coli and 33.5% K. pneumonia samples carried extended-spectrum-β-lactamase. All Staphylococci and Enterococci samples were not resistant to linezolid, vancomycin, and tigecycline. In addition, only 0.01% E. coli, 1.1% K. pneumonia, and 18.7% P. aeruginosa isolates showed resistance to carbapenems. Conclusions. Vancomycin, linezolid and tigecycline were the most effective antibiotics for outpatients with gram-positive infection. Carbapenems were the most effective antibiotics for gram-negative infection. There was no significant annual increase of common multidrug resistances.

scholarly journals Microbial Predominance and Antimicrobial Resistance in a Tertiary Hospital: A Six-year Retrospective study from Outpatients and Patients Visiting the Emergency Department

2020 ◽  
Author(s):  
CaiFeng Wang ◽  
Wen Li ◽  
Juanjuan Gao ◽  
Dancheng Zhang ◽  
Yali Li ◽  
...  
Keyword(s):  
Emergency Department ◽  
Retrospective Study ◽  
Antimicrobial Resistance ◽  
Tertiary Hospital ◽  
Diffusion Method ◽  
Gram Positive ◽  
Gram Negative ◽  
E Coli ◽  
Antimicrobial Susceptibility Tests ◽  
Susceptibility Tests

Abstract Objective: To assessing the characteristics of of microbial species and the antimicrobial resistance in a Tertiary Hospital with 49 outpatient clinics and emergency department in Northwestern China, of six years. Methods: A retrospective study was conducted using HIS database of a tertiary hospital between the full-year period of 2013 and 2018. Antimicrobial susceptibility tests were conducted by automated systems and/or the Kary-Bauer disc diffusion method. Data were analyzed using the WHONET 5.6 software. The Cochran–Armitage test was used to study the trends over the period. Results: A total of 19,028 specimens were submitted for the laboratory tests of microbiology. Among 49 units, only Emergency Department and Kidney Transplantation Clinic with the number of submission showed a significant increase annually (P<0.001). A total of 3,849 non-repetitive isolates were identified, covering more than 200 species, of which gram-positive cocci accounted for 46.4% and gram-negative bacilli 45.3%. The methicillin-resistant rates of S. aureus and S. epidermidis were 25.1% and 74.6%, respectively. The isolates of 60.9% of E. coli and 33.5% of K. pneumonia contained extended spectrum β lactamases. Moreover, there were no Staphylococci and Enterococci resistant to linezolid, vancomycin and tigecycline. In addition, the percentages of E. coli, K. pneumonia and P. aeruginosa isolates resistant to carbapenems were low (0.0%, 1.1% and 18.7%, respectively). Conclusion: Vancomycin, linezolid and tigecycline are among the most effective treatment for outpatients with gram-positive infection. Carbapenems are among the most effective for gram-negative infection. There is no significant annual increase of common multidrug resistances.

scholarly journals Profile of antimicrobial resistance in oncologic pediatric patients

2014 ◽  
Vol 2 (4) ◽  
Author(s):  
Mauricio García-Luna ◽  
José Antonio Madrid Gómez-Tagle ◽  
Jessica P. O’Brien
Keyword(s):  
Antimicrobial Resistance ◽  
Lymphoblastic Leukemia ◽  
Multidrug Resistant ◽  
Resistant Bacteria ◽  
Gram Positive ◽  
Gram Negative ◽  
E Coli ◽  
Development Of Resistance ◽  
Drug Resistant Bacteria ◽  
Clinical Records

The development of resistance to antibiotics is due to the widespread use of a wide variety of antimicrobials, coupled with the ability of bacteria to acquire and spread resistance and the ability of humans to disseminate them. The possible consequences of antimicrobial resistance leads to greater chances of hospitalization, prolongation of hospital stay and increased mortality. Furthermore, treatment of drug resistant bacteria requires the use of more toxic drugs and more expense for the patient and hospitals. The main objective of the present study was to determine the frequency and nature of antimicrobial resistance of microorganisms in oncologic and hematologic patients at a Mexican Pediatric Hospital. A retrospective, observational, and analytical study was realized, where we reviewed the clinical records of 20 cases. Blood cultures were obtained from the Laboratory of our institution from 2010 to 2011. The data obtained were organized and analyzed. We observed that the E. coli and S. aureus were the bacteria most resistant, showing the same percentage between gram-positive and gram-negative bacteria. The cancer diagnosis most common in our study was acute lymphoblastic leukemia. It may be concluded that multidrug-resistant bacteria in these patients are of a nosocomial origin, without a specific group of germ (gram positive vs. gram negative).

Antimicrobial Activity of Iron-Halide Complexes Against Gram-Positive and Gram-Negative Bacteria

2020 ◽  
Author(s):  
Nusrat Abedin ◽  
Abdullah Hamed A Alshehri ◽  
Ali M A Almughrbi ◽  
Olivia Moore ◽  
Sheikh Alyza ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Antimicrobial Resistance ◽  
Extracellular Dna ◽  
Antibiofilm Activity ◽  
Gram Negative Bacteria ◽  
Bacterial Strains ◽  
Gram Positive ◽  
Gram Negative ◽  
Antimicrobial Substances ◽  
Mammalian Cell Lines

Antimicrobial resistance (AMR) has become one of the more serious threats to the global health. The emergence of bacteria resistant to antimicrobial substances decreases the potencies of current antibiotics. Consequently, there is an urgent and growing need for the developing of new classes of antibiotics. Three prepared novel iron complexes have a broad-spectrum antimicrobial activity with minimum bactericidal concentration (MBC) values ranging from 3.5 to 10 mM and 3.5 to 40 mM against Gram-positive and Gram-negative bacteria with antimicrobial resistance phenotype, respectively. Time-kill studies and quantification of the extracellular DNA confirmed the bacteriolytic mode of action of the iron-halide compounds. Additionally, the novel complexes showed significant antibiofilm activity against the tested pathogenic bacterial strains at concentrations lower than the MBC. The cytotoxic effect of the complexes on different mammalian cell lines show sub-cytotoxic values at concentrations lower than the minimum bactericidal concentrations.

Structure-Activity Relationship and Antimicrobial Evaluation of N-Phenylpyrazole Curcumin Derivatives

2020 ◽  
Vol 16 (4) ◽  
pp. 481-488
Author(s):  
Heli Sanghvi ◽  
Satyendra Mishra
Keyword(s):  
Antibacterial Activity ◽  
Gram Negative Bacteria ◽  
Pyrazole Derivatives ◽  
Gram Positive ◽  
Gram Negative ◽  
E Coli ◽  
Curcumin Derivatives ◽  
Structure Activity ◽  
Electron Donating Groups ◽  
Derivatives Of

Background: Curcumin, one of the most important pharmacologically significant natural products, has gained significant consideration among scientists for decades since its multipharmacological activities. 1, 3-Dicarbonyl moiety of curcumin was found to be accountable for the rapid degradation of curcumin molecule. The aim of present work is to replace 1, 3-dicarbonyl moiety of curcumin by pyrazole and phenylpyrazole derivatives with a view to improving its stability and to investigate the role of substitution in N-phenylpyrazole curcumin on its antibacterial activity against both Gram-positive as well as Gram-negative bacteria. Methods: Pyrazole derivatives of curcumin were prepared by heating curcumin with phenyhydrazine/ substituted phenyhydrazine derivatives in AcOH. The residue was purified by silica gel column chromatography. Structures of purified compounds were confirmed by 1H NMR and Mass spectroscopy. The synthesized compounds were evaluated for their antibacterial activity by the microdilution broth susceptibility test method against gram positive (S. aureus) and gram negative (E. coli). Results: Effects of substitution in N-phenylpyrazole curcumin derivatives against S. aureus and E. coli were studied. The most active N-(3-Nitrophenylpyrazole) curcumin (12) exhibits twenty-fold more potency against S. aureus (MIC: 10μg/mL)) and N-(2-Fluoroophenylpyrazole) curcumin (5) fivefold more potency against E. coli (MIC; 50 μg/mL) than N-phenylpyrazole curcumin (4). Whereas, a remarkable decline in anti-bacterial activity against S. aureus and E. coli was observed when electron donating groups were incorporated in N-phenylpyrazole curcumin (4). Comparative studies of synthesized compounds suggest the effects of electron withdrawing and electron donating groups on unsubstituted phenylpyrazole curcumin (4). Conclusion: The structure-activity relationship (SAR) results indicated that the electron withdrawing and electron donating at N-phenylpyrazole curcumin played key roles for their bacterial inhibitory effects. The results of the antibacterial evaluation showed that the synthesized pyrazole derivatives of curcumin displayed moderate to very high activity in S. aureus. In conclusion, the series of novel curcumin derivatives were designed, synthesized and tested for their antibacterial activities against S. aureus and E. coli. Among them, N-(3-Nitrophenylpyrazole curcumin; 12) was most active against S. aureus (Gram-positive) and N-(2-Fluoroophenylpyrazole) curcumin (5) against E. coli (Gram-negative) bacteria.

The Causative Organisms of Bacterial Meningitis and their Antimicrobial Resistance Profiles in Iranian Children in 2011-2016

2020 ◽  
Vol 20 (2) ◽  
pp. 229-236
Author(s):  
Sepideh Keshavarz Valian ◽  
Shima Mahmoudi ◽  
Babak Pourakbari ◽  
Maryam Banar ◽  
Mohammad Taghi Haghi Ashtiani ◽  
...  
Keyword(s):  
Antimicrobial Resistance ◽  
Bacterial Meningitis ◽  
Medical Center ◽  
Blood Cultures ◽  
Gram Positive ◽  
Gram Negative ◽  
Number Of Patients ◽  
Resistance Patterns ◽  
Iranian Children ◽  
Surgery Department

Objective: The study aimed to describe the identity and antimicrobial resistance patterns of the causative agents of bacterial meningitis in children referred to Children’s Medical Center (CMC) Hospital, Tehran, Iran. Methods: This retrospective study was performed at CMC Hospital during a six-year period from 2011 to 2016. The microbiological information of the patients with a diagnosis of bacterial meningitis was collected and the following data were obtained: patients’ age, sex, hospital ward, the results of CSF and blood cultures, and antibiotic susceptibility profiles of isolated organisms. Results: A total of 118 patients with bacterial meningitis were admitted to CMC hospital. Sixty-two percent (n=73) of the patients were male. The median age of the patients was ten months (interquartile range [IQR]: 2 months-2 years) and the majority of them (n=92, 80%) were younger than two years of age. The highest number of patients (n=47, 40%) were admitted to the surgery department. Streptococcus epidermidis was the most frequent isolated bacterium (n=27/127, 21%), followed by Klebsiella pneumoniae (n=20/127, 16%), and Staphylococcus aureus (n=16/127, 12.5%). Blood culture was positive in 28% (n=33/118) of patients. Ampicillin-sulbactam and imipenem were the most effective antibiotics against Gram-negative bacteria isolated from CSF cultures. In the case of Gram-positive organisms, ampicillinsulbactam, vancomycin, and linezolid were the best choices. Imipenem was the most active drug against Gram-negative blood pathogens. Also, ampicillin and vancomycin had the best effect on Gram-positive bacteria isolated from blood cultures. Conclusion: Results of this study provide valuable information about the antibiotic resistance profiles of the etiologic agents of childhood meningitis, which can be used for prescription of more effective empirical therapies.

scholarly journals Asymptomatic Bacteriuria among Pregnant Women Attending Tertiary Care Hospital in Lucknow, India

2021 ◽  
pp. 1-8
Author(s):  
Naimshree Sonkar ◽  
Malay Banerjee ◽  
Suman Gupta ◽  
Absar Ahmad
Keyword(s):  
Haemoglobin Level ◽  
Pregnant Women ◽  
Antimicrobial Susceptibility ◽  
Tertiary Care Hospital ◽  
Tertiary Care ◽  
Asymptomatic Bacteriuria ◽  
Care Hospital ◽  
Gram Positive ◽  
Gram Negative ◽  
E Coli

Introduction: Asymptomatic bacteriuria (ASB) is the presence of actively multiplying bacteria within the urinary tract with absence of any symptoms, resulting in adverse pregnancy outcomes. This research study was done in order to review prevalence, antimicrobial susceptibility profile, and factors associated with ASB occurring in female patients who are pregnant and being treated at a tertiary care hospital in Lucknow, India. Method and Materials: This is a cross-sectional study done among 216 pregnant women attending a hospital for antenatal check-ups. Clean catch midstream urine samples were collected and examined microscopically, and semi-quantitative culture was done on blood agar and MacConkey agar. Isolates were identified by colony morphology and biochemical tests, and antimicrobial susceptibility testing was done by using the Kirby-Bauer method. Results: Of the 216 pregnant women, 36 (16.7%) tested positive for ASB. The female gestational period, haemoglobin level, and BMI were significantly associated with ASB. Logistic regression also showed that higher haemoglobin level was less likely to ASB (AOR = 0.42, 95% confidence interval: 0.202–0.88, p = 0.021). The predominant and usual isolates were E. coli (n = 22, 61.1%), followed by Cons (n = 6, 16.7%), and S. aureus (3, 8.3%). All Gram-negative isolates were mostly sensitive to most of the drugs like piperacillin-tazobactam, cefepime, nitrofurantoin, and meropenem but were 100% resistant to ampicillin. Similarly, Gram-positive isolates were sensitive to ampicillin, vancomycin, linezolid, and nitrofurantoin but 100% resistant to co-trimoxazole. Conclusion: The present study shows the existence of ASB was 16.7% among women who are pregnant. Pregnancy duration, haemoglobin level, and BMI were significantly associated with ASB. The isolates identified more frequently were E. coli (61.16%), Cons (16.7%), and S. aureus (8.3%). All isolates which were Gram-negative were mostly sensitive to most of the drugs but were 100% resistant to ampicillin. Similarly, Gram-positive isolates were sensitive to most of the drugs but 100% resistant to co-trimoxazole.

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