Sensitivity of two drug-resistant bacteria to low-temperature air plasma in catheter-associated urinary tract infections under different environments

TÓM TẮT Đặt vấn đề: Xác định đúng căn nguyên gây NKĐTN và mức độ kháng kháng sinh của các vi khuẩn sẽ giúp cho việc điều trị có hiệu quả, giảm được chi phí điều trị, hạn chế sự gia tăng vi khuẩn đề kháng kháng sinh. Đối tượng và phương pháp nghiên cứu: Các chủng VK gây nhiễm khuẩn đương tiết niệu phân lập được tại bệnh viện Hữu nghị Đa khoa Nghệ An từ 1/2020 đến 12/2020. Thiết kế nghiên cứu: Cắt ngang mô tả. Kết quả: Phân lập được 473 chủng vi khuẩn gây NKĐTN, trong đó, E. coli 38,48%; P. aeruginosa 14,15; Enterococcus sp 10,57; K. pneumoniae 13,32%. E. coli: kháng các kháng sinh Cephalosporine, Quinolones từ 56,7 - 63,8%, Carbapenem 4,5 - 6,2%, sinh ESBL 49,4%. P. aeruginosa: đã kháng các kháng sinh thử nghiệm từ 59,1 - 69,2%. Enterococcus sp: kháng với các kháng sinh nhóm Quinolone 73,5%, kháng Vancomycin 8,3%; Chưa ghi nhận đề kháng Linezolid. K. pneumoniae: kháng nhóm Cephalosporin, Quinolone từ 66,7 - 74,6%, đề kháng với Carbapenem từ 46,0 - 50,8%. Kết luận: Các vi khuẩn gây nhiễm khuẩn tiết niệu thường gặp là: E. coli, P. aeruginosa, Enterococcus sp. K. pneumoniae. Các vi khuẩn phân lập được đã đề kháng với nhiều kháng sinh thường dùng với các mức độ khác nhau. Xuất hiện các chủng vi khuẩn Gram âm kháng Carbapenem, Gram dương kháng Vancomycin. Từ khóa: Nhiễm khuẩn tiết niệu, E.coli, Klebsiella, P.aeruginosa, Enterococcus sp ABSTRACT RESEARCH OF ANTIBIOTICS RESISTANCE OF BACTERIA STRAINS CAUSING URINARY TRACT INFECTIONS ISOLATED AT NGHEAN FRIENDSHIP GENERAL HOSPITAL Background: The good identification of UTI microorganism and their antimicrobial susceptibility would promote the effective treatment, reduce the cost as well as the emergence of drug resistant bacteria. Methods: Bacterial strains causing urinary tract infections were isolated at Nghe An Friendship General Hospital from 1/2020 to 12/2020. Study design: Descriptive cross section. Results: 473 bacterial strains causing UTIs were isolated, in which, E. coli 38.48%; P. aeruginosa 14.15; Enterococcus sp 10.57; K. pneumoniae 13.32%. E. coli: resistant to Cephalosporin antibiotics, Quinolones from 56.7 - 63.8%, Carbapenem 4.5 - 6.2%, producing ESBL 49.4%. P. aeruginosa: was resistant to the tested antibiotics from 59.1 - 69.2%. Enterococcus sp: resistant to Quinolone antibiotics 73.5%, resistant to Vancomycin 8.3%; Linezolid resistance has not been recorded. K. pneumoniae: resistant to Cephalosporin, Quinolone from 66.7 - 74.6%, resistant to Carbapenem from 46.0 - 50.8%. Conclusion: Common bacteria causing urinary tract infections are: E. coli, P. aeruginosa, Enterococcus sp. K. pneumoniae. The isolates were resistant to many commonly used antibiotics to varying degrees. Occurrence of strains of Gram - negative bacteria resistant to Carbapenem, Gram - positive resistant to Vancomycin. Keywords: Urinary Tract infections, E. coli, Klebsiella, P. aeruginosa, Enterococcus sp.

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1675. Epidemiology of Urinary Tract Infections in the United States, 2009 - 2018

Open Forum Infectious Diseases ◽

10.1093/ofid/ofaa439.1853 ◽

2020 ◽

Vol 7 (Supplement_1) ◽

pp. S823-S823

Author(s):

Kendra Foster ◽

Linnea A Polgreen ◽

Brett Faine ◽

Philip M Polgreen

Keyword(s):

United States ◽

Urinary Tract ◽

Klebsiella Pneumoniae ◽

Urinary Tract Infections ◽

Proteus Mirabilis ◽

Antibiotic Use ◽

The United States ◽

Drug Resistant ◽

E Coli ◽

Tract Infections

Abstract Background Urinary tract infections (UTIs) are one of the most common bacterial infections. There is a lack of large epidemiologic studies evaluating the etiologies of UTIs in the United States. This study aimed to determine the prevalence of different UTI-causing organisms and their antimicrobial susceptibility profiles among patients being treated in a hospital setting. Methods We used the Premier Healthcare Database. Patients with a primary diagnosis code of cystitis, pyelonephritis, or urinary tract infection and had a urine culture from 2009- 2018 were included in the study. Both inpatients and patients who were only treated in the emergency department (ED) were included. We calculated descriptive statistics for uropathogens and their susceptibilities. Multi-drug-resistant pathogens are defined as pathogens resistant to 3 or more antibiotics. Resistance patterns are also described for specific drug classes, like resistance to fluoroquinolones. We also evaluated antibiotic use in this patient population and how antibiotic use varied during the hospitalization. Results There were 640,285 individuals who met the inclusion criteria. Females make up 82% of the study population and 45% were age 65 or older. The most common uropathogen was Escherichia Coli (64.9%) followed by Klebsiella pneumoniae (8.3%), and Proteus mirabilis (5.7%). 22.2% of patients were infected with a multi-drug-resistant pathogen. We found that E. Coli was multi-drug resistant 23.8% of the time; Klebsiella pneumoniae was multi-drug resistant 7.4%; and Proteus mirabilis was multi-drug resistant 2.8%. The most common antibiotics prescribed were ceftriaxone, levofloxacin, and ciprofloxacin. Among patients that were prescribed ceftriaxone, 31.7% of them switched to a different antibiotic during their hospitalization. Patients that were prescribed levofloxacin and ciprofloxacin switched to a different antibiotic 42.8% and 41.5% of the time, respectively. Conclusion E. Coli showed significant multidrug resistance in this population of UTI patients that were hospitalized or treated within the ED, and antibiotic switching is common. Disclosures All Authors: No reported disclosures

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The Antibacterial Activity of Human Amniotic Membrane against Multidrug-Resistant Bacteria Associated with Urinary Tract Infections: New Insights from Normal and Cancerous Urothelial Models

Biomedicines ◽

10.3390/biomedicines9020218 ◽

2021 ◽

Vol 9 (2) ◽

pp. 218

Author(s):

Taja Železnik Ramuta ◽

Larisa Tratnjek ◽

Aleksandar Janev ◽

Katja Seme ◽

Marjanca Starčič Erjavec ◽

...

Keyword(s):

Antibacterial Activity ◽

Urinary Tract ◽

Urinary Tract Infections ◽

Amniotic Membrane ◽

Multidrug Resistant ◽

Basic Knowledge ◽

Resistant Bacteria ◽

Human Amniotic Membrane ◽

Multidrug Resistant Bacteria ◽

Tract Infections

Urinary tract infections (UTIs) represent a serious global health issue, especially due to emerging multidrug-resistant UTI-causing bacteria. Recently, we showed that the human amniotic membrane (hAM) could be a candidate for treatments and prevention of UPEC and Staphylococcus aureus infections. However, its role against multidrug-resistant bacteria, namely methicillin-resistant S. aureus (MRSA), extended-spectrum beta-lactamases (ESBL) producing Escherichia coli and Klebsiella pneumoniae, vancomycin-resistant Enterococci (VRE), carbapenem-resistant Acinetobacter baumannii, and Pseudomonas aeruginosa has not yet been thoroughly explored. Here, we demonstrate for the first time that the hAM homogenate had antibacterial activity against 7 out of 11 tested multidrug-resistant strains, the greatest effect was on MRSA. Using novel approaches, its activity against MRSA was further evaluated in a complex microenvironment of normal and cancerous urinary bladder urothelia. Even short-term incubation in hAM homogenate significantly decreased the number of bacteria in MRSA-infected urothelial models, while it did not affect the viability, number, and ultrastructure of urothelial cells. The hAM patches had no antibacterial activity against any of the tested strains, which further exposes the importance of the hAM preparation. Our study substantially contributes to basic knowledge on the antibacterial activity of hAM and reveals its potential to be used as an antibacterial agent against multidrug-resistant bacteria.

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Urinary Tract Infections Caused by Multi-Drug Resistant Proteus mirabilis: Risk Factors and Clinical Outcomes

Infection ◽

10.1007/s15010-009-8460-5 ◽

2009 ◽

Vol 38 (1) ◽

pp. 41-46 ◽

Cited By ~ 38

Author(s):

K. Cohen-Nahum ◽

L. Saidel-Odes ◽

K. Riesenberg ◽

F. Schlaeffer ◽

A. Borer

Keyword(s):

Risk Factors ◽

Urinary Tract ◽

Clinical Outcomes ◽

Urinary Tract Infections ◽

Proteus Mirabilis ◽

Drug Resistant ◽

Tract Infections

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Previous Antimicrobial Exposure Is Associated With Drug-Resistant Urinary Tract Infections in Children

PEDIATRICS ◽

10.1542/peds.2009-1527 ◽

2010 ◽

Vol 125 (4) ◽

pp. 664-672 ◽

Cited By ~ 41

Author(s):

A. A. Paschke ◽

T. Zaoutis ◽

P. H. Conway ◽

D. Xie ◽

R. Keren

Keyword(s):

Urinary Tract ◽

Urinary Tract Infections ◽

Drug Resistant ◽

Tract Infections

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Molecular identification of multi drug resistant bacteria from urinary tract infected urine samples

Microbial Pathogenesis ◽

10.1016/j.micpath.2016.06.029 ◽

2016 ◽

Vol 98 ◽

pp. 37-44 ◽

Cited By ~ 11

Author(s):

M.S. Kumar ◽

A.P. Das

Keyword(s):

Urinary Tract ◽

Molecular Identification ◽

Urine Samples ◽

Resistant Bacteria ◽

Drug Resistant ◽

Drug Resistant Bacteria ◽

Infected Urine

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Oral D mannose in the prevention and treatment of recurrent urinary tract infections: A review

Urogynaecologia ◽

10.4081/uij.2021.239 ◽

2021 ◽

Vol 33 (1) ◽

Author(s):

Daniele Porru ◽

Annalisa De Silvestri ◽

Edda Buffa ◽

Catherine Klersy ◽

Barbara Gardella ◽

...

Keyword(s):

Urinary Tract ◽

Antibiotic Prophylaxis ◽

Urinary Tract Infections ◽

Resistant Bacteria ◽

Control Groups ◽

Recurrent Utis ◽

Recurrent Urinary Tract Infections ◽

Long Term Treatment ◽

Significant Difference ◽

Tract Infections

The results of several studies reveal that antibiotics may promote treatment resistance by causing alterations in the intestinal flora. The development of a gut reservoir of resistant bacteria promotes the development of UTIs through autoinfection. This review aims to address clinical reliability, efficacy and safety of long-term treatment with oral D mannose for the prevention of Recurrent Urinary Tract Infections (RUTI) in females. A comprehensive MEDLINE, Embase, Scopus and Cochrane search was performed for English language reports published before December 2018 using the term “recurrent urinary tract infections and D mannose” was carried out. We searched Medline, Embase, Scopus and the Cochrane Register of Controlled Trials from January 2010 to December 2018. Eligible studies did not include non-oral therapy, local (vaginal) treatment in women with recurrent UTIs. We identified eligible original articles. A few limitations of the review are the heterogeneity of the available studies, their different rational and aim, the assumption of D mannose for prophylaxis or treatment of recurrent UTIs. Oral D mannose performs well in the prevention of UTIs recurrences, significant improvement of urinary symptoms was observed, the disease- free time was longer in the groups of patients under prophylaxis with D mannose in comparison with control groups (no treatment, antibiotic prophylaxis, prophylaxis with Proanthocyanidin (PAC) etc. The review has limitations, as the studies are heterogeneous, the meta-analysis requires classifications that can also be arbitrary. Furthermore, single-arm studies are not included. Some of the authors found this evidence inconclusive, which results as a limitation of the study. D mannose prolonged the recurrence-free interval of recurrent UTIs, thus reducing the prolonged or cyclical use of antibiotics, improving clinical symptoms, with a significant difference between treatment and control groups (no treatment, antibiotic prophylaxis, prophylaxis with Proanthocyanidin). However, most clinical trials used an association of different substances commingled with D mannose, dosages and regimens of D mannose were different. For this reason, the evidence of the efficacy of D mannose remains low.

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