ANTIBIOTIC SUSCEPTIBILITY PATTERN OF MICROBIAL ISOLATES OBTAINED FROM OBSTETRICS PATIENTS IN TERTIARY CARE HOSPITAL IN NORTHERN INDIA

2021 ◽  
pp. 34-35
Author(s):  
Shruti Sharma ◽  
Aditya Rana ◽  
Subhash Chand Jaryal ◽  
Anuradha Sood ◽  
Daaman Thakur ◽  
...  

BACKGROUND: Urinary tract infections (UTI) are one of the most frequent clinical bacterial infections in women. They are at higher risk to acquire UTI during pregnancy. The emergence and spread of antimicrobial resistance is a cause of increasing concern. Thus, knowledge of local antimicrobial susceptibility patterns of common uropathogens is essential for empiric therapy of UTIs. Retrospective study was conducted in the Department of Microbiology of DRPGM MATERIALS AND METHODS: C Kangra at Tanda. Study was conducted for the period of one years ie. from July 2020 to June 202. Urine samples were collected and sent to the laboratory for identication and antimicrobial susceptibility of bacterial isolates. RESULTS: During the 12-month study period, out of the 1266 samples screened, 977(77.2%) were sterile, 224(17.698%) samples showed signicant growth of >10฀CFU/ml and 65(5.1%) were contaminanst or insignicant growth, which were excluded from the study. E. coli alone accounted for 66.9% of the urinary isolates followed by Klebsiella spp 12.9%. Among the Gram-positive cocci, Enterococcus isolated from a single sample and Methicillin resistant staphylococcus aureus were seen in two urine samples. Signicantly high susceptibility was seen with fosfomycin(90%) and nitrofurantoin(84%). Resistance was quite high against the noroxacin(30.3%) and cefazolin(17.8%). The susceptibility patterns seen in our study see CONCLUSION: m to suggest that it is necessary to obtain sensitivity reports before initiation of antibiotic therapy in cases of suspected UTI

2021 ◽  
Vol 19 ◽  
Author(s):  
Mahesh Acharya ◽  
Prabhu Raj Joshi ◽  
Kamal Thapa ◽  
Saroj Paudel ◽  
Prativa Poudel ◽  
...  

Background: Despite the global increase of CTX-M type extended-spectrum-β-lactamases (ESBLs) in recent years among Enterobacteriaceae isolates from urinary tract infections, little data is available from Nepal. Objective: This study was conducted to detect the genes encoding extended-spectrum β-lactamases among Enterobacteriaceae isolated from the urine samples in Nepal. Methods: A total of 148 Enterobacteriaceae isolates were collected in Annapurna Neurological Institute and Allied Sciences from urine samples from July 2016 to June 2017. ESBLs production was detected according to the Clinical and Laboratory Standards Institute (CLSI) recommended methods. PCR and sequencing were used for the detection of ESBL genes. Results: Overall 24.3% (36/148) of the study isolates were positive for ESBL production. E. coli was the predominant ESBL-producing organism (28.8%). ESBL-producing organisms showed a high rate of resistance to ceftazidime (58.4%), cefepime (91.7%), aztreonam (83.4%), and ciprofloxacin (80.6%). Also, 30.6% of ESBL-producing organisms were multi-drug resistant. All ESBL producers were CTX-M positive; other ESBL genes were not detected. The majority of the ESBL positive organisms produced CTX-M-15 (n= 31) and few organisms (n= 5) were CTX-M-27 producers. Conclusion: The present study shows that the predominant CTX-M type ESBL in our hospital setting is CTX-M-15.


2020 ◽  
Vol 19 (1) ◽  
pp. 133-141
Author(s):  
Vivek Kumar Singh ◽  
Mahesh Kumar Chaudhary ◽  
Megha Raj Banjara ◽  
Reshma Tuladhar

   Urinary tract infection is the most common infection in females worldwide. One in three women experiences at least one episode of urinary tract infection during their lifetime. The objective of this study was to determine the etiology and antimicrobial profile of urinary tract infection. A cross-sectional study was conducted at a tertiary care hospital in Nepal. Thirteen hundred clean catch mid-stream urine samples were tested through standard microbiological techniques. The isolates from urine samples were identified from biochemical tests. Antibiotic susceptibility testing was performed through the Kirby-Bauer disc diffusion technique following CLSI guidelines. The prevalence of urinary tract infection was found at 24.23%. Escherichia Coli was a predominant etiological agent followed by Staphylococcus aureus. The majority of the infection was found between the age group 21-40, with females mostly infected. Most of the microorganisms were isolated from emtergency, obstetrics-gynecology, and nephrology wards. Most of the isolates were resistant to ampicillin, whereas the majority of the gram-positive isolates were resistant to penicillin.A large number of isolates were found to be sensitive to Gentamycin and nitrofurantoin. Routine antimicrobial susceptibility testing of the isolates causing urinary tract infection is recommended to reduce antimicrobial resistance and for the  proper treatment of infection.


Antibiotics ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 35
Author(s):  
Basit Zeshan ◽  
Mohmed Isaqali Karobari ◽  
Nadia Afzal ◽  
Amer Siddiq ◽  
Sakeenabi Basha ◽  
...  

Antimicrobial resistance (AMR) is a global health issue that plays a significant role in morbidity and mortality, especially in immunocompromised patients. It also becomes a serious threat to the successful treatment of many bacterial infections. The widespread and irrelevant use of antibiotics in hospitals and local clinics is the leading cause of AMR. Under this scenario, the study was conducted in a tertiary care hospital in Lahore, Pakistan, from 2 August 2021 to 31 October 2021 to discover the prevalence of bacterial infections and AMR rates in COVID-19 patients admitted in surgical intensive care units (SICUs). Clinical samples were collected from the patients and we proceeded to identify bacterial isolates, followed by antibiotic susceptibility testing (AST) using the Kirby Bauer disk diffusion method and minimum inhibitory concentration (MIC). The data of other comorbidities were also collected from the patient’s medical record. The current study showed that the most common pathogens were E. coli (32%) and Klebsiella pneumoniae (17%). Most E. coli were resistant to ciprofloxacin (16.8%) and ampicillin (19.8%). Klebsiella pneumoniae were more resistant to ampicillin (13.3%) and amoxycillin (12.0%). The most common comorbidity was chronic kidney disease (CKD) and urinary tract infections (UTIs). Around 17 different types of antibiotic, the carbapenem, fluoroquinolones, aminoglycoside, and quinolones, were highly prevalent in ICU patients. The current study provides valuable data on the clinical implication of antibiotics consumed by COVID-19 patients in SICUs and the AMR rates, especially with different comorbidities.


Author(s):  
Márió Gajdács

Aims: To assess the epidemiology of UTIs affecting inpatients and outpatients and the antibiotic resistance levels, expressed as multiple antibiotic resistance (MAR) indices from the isolated species at a tertiary-care hospital in Hungary, during a 10-year study period. Study Design: Retrospective microbiological study. Place and Duration of Study: 1st of January 2008 - 31st of December 2017 at the University of Szeged, which is affiliated with the Albert Szent-Györgyi Clinical Center, a primary- and tertiary-care teaching hospital in the Southern Great Plain of Hungary. Methodology: Antimicrobial susceptibility testing (AST) was performed using disk diffusion method and when appropriate, E-tests on Mueller–Hinton agar (MHA) plates. The multiple antibiotic resistance (MAR) index of the isolates was determined. Results: During the 10-year study period, the Institute of Clinical Microbiology received 21,150 urine samples from outpatient clinics and 19,325 samples from inpatient departments that turned out to be positive for a significant urinary pathogen. Out of the positive urine samples, E. coli represented the overwhelming majority of all positive urine samples. The resistance levels in inpatient isolates were higher than in the outpatient isolates (average MAR indices: 0.347 vs. 0.410, 0.267 vs. 0.435 and 0.318 vs. 0.473 for the E. coli/Klebsiella, CES and Proteae group, respectively). Conclusion: As the therapeutic options are becoming increasingly limited in the current antibiotic resistance climate, more effort should be put into the prudent use of antibiotics and the development of novel antimicrobial agents.


Gut Pathogens ◽  
2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Mahoko Ikeda ◽  
Tatsuya Kobayashi ◽  
Fumie Fujimoto ◽  
Yuta Okada ◽  
Yoshimi Higurashi ◽  
...  

Abstract Background Although Escherichia coli is the most frequently isolated microorganism in acute biliary tract infections with bacteremia, data regarding its virulence are limited. Results Information on cases of bacteremia in acute biliary tract infection in a retrospective study was collected from 2013 to 2015 at a tertiary care hospital in Japan. Factors related to the severity of infection were investigated, including patient background, phylogenetic typing, and virulence factors of E. coli, such as adhesion, invasion, toxins, and iron acquisition. In total, 72 E. coli strains were identified in 71 cases, most of which primarily belonged to the B2 phylogroup (68.1%). The presence of the iutA gene (77.3% in the non-severe group, 46.4% in the severe group, P = 0.011) and the ibeA gene (9.1% in the non-severe group, and 35.7% in the severe group, P = 0.012) was significantly associated with the severity of infection. Among the patient characteristics, diabetes mellitus with organ involvement and alkaline phosphatase were different in the severe and non-severe groups. Conclusions We showed that bacteremic E. coli strains from acute biliary tract infections belonged to the virulent (B2) phylogroup. The prevalence of the iutA and ibeA genes between the two groups of bacteremia severity was significantly different.


2021 ◽  
pp. 1-8
Author(s):  
Naimshree Sonkar ◽  
Malay Banerjee ◽  
Suman Gupta ◽  
Absar Ahmad

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.


Author(s):  
Sweta Shah ◽  
Ritika Rampal ◽  
Pooja Thakkar ◽  
Sushima Poojary ◽  
Shweta Ladi

Abstract Introduction The growing resistance pattern of the gram-positive pathogens along with a steady increase in minimum inhibitory concentration of the currently available antibiotics have led to an increase in morbidity and mortality rates in India. This study aims to access the shifting antibiotic susceptibility paradigm of the gram-positive pathogens in various infections at a tertiary care center. Methods This is a 3-year retrospective observational study which was performed from January 2016 to December 2018 at a tertiary care hospital in Mumbai. All clinically significant gram-positive cocci isolated from a variety of clinical specimens were studied for their prevalence and antimicrobial susceptibility. Results Out of 4,428 gram-positive isolates, Staphylococcus aureus (35.3%) was the commonly encountered pathogen, followed by Enterococcus spp. (32.1%) and coagulase-negative Staphylococcus (CoNS) (25.7%). S. aureus was majorly isolated from skin and soft tissue infections (60.3%), followed by patients with respiratory tract infections (18.2%) and blood stream infections (13%). Among S. aureus, particularly methicillin-resistant S.aureus (MRSA), prevalence increased from 29.5% in 2016 to 35.1% in 2018, with an overall prevalence of 33.6%. All S. aureus isolates were 100% sensitive toward vancomycin, linezolid, tigecycline, and teicoplanin. However, the CoNS isolates showed a higher resistance rate with reduced susceptibility toward linezolid and teicoplanin. High prevalence of resistance was observed across gram-positive isolates with commonly used antibiotics such as ciprofloxacin, levofloxacin, and erythromycin. While the prevalence of linezolid-resistant enterococcus (LRE) was 3.6%, vancomycin (VRE) and teicoplanin resistance among the enterococcus species was as high as 7.7% and 7.5%, respectively. Conclusion Rising methicillin resistance among the Staphylococcal species (MRSA and MR-CoNS) along with reduced susceptibility toward currently available anti-MRSA agents is a matter of serious concern as it limits the therapeutic options for treating multidrug resistant (MDR) gram-positive infections.


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