scholarly journals Bacterial etiologic agents of urinary tract infection in children in the Islamic Republic of Iran

1997 ◽  
Vol 3 (2) ◽  
pp. 290-295
Author(s):  
Shahab Modarres ◽  
Navideh Nassiri Oskoii

The bacterial agents of urinary tract infections were studied in 1650 children under 12 years of age between April 1993 and March 1995. It was found that 25.8% [425/1650] of infants and children showed bacteriuria [>10 [5] bacteria per millilitre of urine]. Escherichia coli was responsible for 71.0% of all infections. Infections caused by Proteus spp. were predominantly found in boys. Girls showed a higher prevalence of infection [35.3%] than boys [18.3%], which was statistically highly significant [P < 0.001]. The most commonly isolated bacteria were partially or totally sensitive to the aminoglycosides, chloramphenicol and nalidixic acid

2014 ◽  
Vol 27 (3) ◽  
pp. 364 ◽  
Author(s):  
Ana Bispo ◽  
Milene Fernandes ◽  
Cristina Toscano ◽  
Teresa Marques ◽  
Domingos Machado ◽  
...  

<strong>Introduction:</strong> Urinary tract infection is the most common infectious complication following renal transplantation and its frequency is insufficiently studied in Portugal. The aim of this study was to characterize the incidence of urinary tract infections and recurrent urinary tract infections in renal transplant recipients.<br /><strong>Material and Methods:</strong> This was a retrospective cohort observational study, obtained from clinical files of all patients who received a renal transplant at the Hospital of Santa Cruz, from January 2004 to December 2005, with a mean follow-up period of five years or until date of graft loss, death or loss of follow-up. After a descriptive analysis of the population, we used bivariate tests to identify risk factors for urinary tract infections.<br /><strong>Results:</strong> A total of 127 patients were included, with a 593 patients.year follow-up. We detected 53 patients (41.7%) presenting with at least one episode of urinary tract infection; 21 patients (16.5%) had recurrent urinary tract infection. Female gender was the only risk factor associated with the occurrence of urinary tract infections (p &lt; 0.001, OR = 7.08, RR = 2.95) and recurrent urinary tract infections (p &lt; 0.001, OR = 4.66, RR = 2.83). Escherichia coli (51.6%), Klebsiella pneumoniae (15.5%) and Enterobacter spp (9.9%) were the<br />most frequently identified pathogens. Patients did not reveal an increased mortality or allograft loss. However, urinary tract infections were the most important cause of hospital admissions.<br /><strong>Discussion:</strong> Female gender was the only risk factor for urinary tract infections in this population. Escherichia coli was the most frequent agent isolated.<br /><strong>Conclusion:</strong> Despite preventive measures, urinary tract infections remain an important cause of morbidity and hospital admissions.<br /><strong>Keywords:</strong> Urinary Tract Infections; Postoperative Complications; Risk Factors; Kidney Transplantation; Portugal.


2020 ◽  
Vol 58 (221) ◽  
Author(s):  
Arun Giri ◽  
Raju Kafle ◽  
Ganesh Kumar` Singh ◽  
Niraj Niraula

Introduction: Urinary tract infection is one of the commonest causes of childhood morbidity. Earlydiagnosis and appropriate choice of antimicrobials is essential. Hence, this study aims to identify theprevalence of Escherichia coli in childhood urinary tract infections. Methods: This was a hospital based descriptive cross-sectional study conducted in Nobel MedicalCollege, Biratnagar over a period of one year. A total of 163 cases aged 1-15 years were included andclinical profile, laboratory reports including bacterial isolates in urine cultures and their sensitivitypatterns were documented. Results: The prevalence of Escherichia coli is 45 (53.57%) C.I. Escherichia coli was the most commonorganism isolated in bacterial cultures followed by Klebsiella 12 (14.29%), Enterococcus 10 (11.90%).Urinary tract infection was common among females with male: female ratio of 1:2.3. Fever 152(93.2%) and abdominal pain 113 (69.3%) were the most common presenting symptoms. Escherichiacoli was found most sensitive to Nitrofurantoin 43 (95.5%) followed by Ciprofloxacin 41 (91.1%) andAmikacin 40 (88.8%). Conclusions: Urinary tract infections in childhood require prompt attention and treatment to preventsignificant morbidity and mortality. From this study it can be concluded that Escherichia coli is oneof the most common isolates in urine culture and Aminoglycosides and Fluoroquinolones can beaccepted as empirical treatment regimens for childhood Urinary tract infections.


2020 ◽  
Vol 7 (Supplement_1) ◽  
pp. S832-S833
Author(s):  
Fatma Hammami ◽  
Makram Koubaa ◽  
Amal Chakroun ◽  
Khaoula Rekik ◽  
Fatma Smaoui ◽  
...  

Abstract Background Bacterial urinary tract infections continue to be a major health problem, responsible for a significant morbidity and mortality. Its prognosis is more severe than non-bacterial forms. The aim of this work was to study the clinical and evolutionary features of bacterial urinary tract infections caused by Escherichia coli (E.coli). Methods We conducted a retrospective study including all patients hospitalized in infectious diseases department for urinary tract infection (UTI) caused by E.coli between 2010 and 2017. Results During the study period, we enrolled 613 cases of UTI caused by E.coli, among whom 75 cases (12.2%) were bacterial. There were 47 females (62.7%). The mean age was 59 ±17 years. Thirty-three patients were aged ≥ 65 years (44%). Diabetes was noted in 38 cases (50.7%) and renal lithiasis in 14 cases (18.7%). A history of UTI was reported in 13 cases (17.3%). The most common clinical presentation was acute pyelonephritis (59 cases; 78.7%) and followed by prostatitis (8 cases; 10.6%). Renal abscess was noted in 5 cases (6.7%) and prostatic abscess in 3 cases (4%). There were 36 cases of multidrug-resistant bacteria (48%). Community-acquired UTI were noted in 70 cases (93.3%). The mean duration of treatment was 18 ± 6 days. Surgery and radiological drainage were indicated in 4 (5.3%) and 2 cases (2.7%), respectively. The outcome was favourable in 58 cases (77.3%). Complications were noted in 10 cases (13.3%) represented mainly by acute renal failure in 4 cases (5.3%). Relapse was noted in 9 cases (12%) and reinfection in 6 cases (8%). Two patients died (2.7%). Conclusion Bacterial urinary tract infections were associated to complications such as renal and prostatic abscess, requiring surgery and long duration of treatment. Disclosures All Authors: No reported disclosures


2008 ◽  
Vol 38 (4) ◽  
pp. 247-249 ◽  
Author(s):  
Yunes Panahi ◽  
Fatemeh Beiraghdar ◽  
Yashar Moharamzad ◽  
Zahra Khalili Matinzadeh ◽  
Behzad Einollahi

Of 433 febrile children examined in the paediatric clinics of two university hospitals in Tehran, Iran, 39 (9%) children (27 girls and 12 boys) were diagnosed as having urinary tract infection in which Escherichia coli was the most frequently detected pathogen (84.6%). According to the voiding cystourethrogram, nine (75%) boys and 17 (63%) girls had urinary tract abnormalities. This result is slightly higher than seen in other reports from developing countries.


2020 ◽  
Vol 35 (Supplement_3) ◽  
Author(s):  
EIY Madela ◽  
Alain Assounga

Abstract Background and Aims Urinary tract infection is among the most common causes of sepsis presenting in hospitals. The aim was to collect data to enable empirical treatment of urinary tract infections in HIV negative and positive nephrology patients while waiting for urine culture results in order to reduce hospital stay. Our aim is also to assess incidence and antimicrobial susceptibility of urinary tract infections in HIV negative and positive patients. Method A retrospective chart review of nephrology patients admitted from January to December 2014 in Nephrology ward and the first consecutive 200 outpatients seen in Nephrology clinic in 2014 at Inkosi Albert Luthuli Central Hospital was conducted. Information was gathered with the use of a data collection sheet and urinary tract infection was based on urine culture results. All data was analysed using Statistical Package for Social Sciences version 23. Percentages of basic characteristics were calculated between groups. Logistic regression analysis was used to identify factors associated with positive urine culture. Results There were 654 patients in the study, 514 (79%) were HIV negative and 139 (21%) were HIV positive. The incidence of UTI in nephrology patients was 9%, 10.1% in inpatients and 6.5% in outpatients. 22% were HIV positive (p value 0.883, 95% CI 0.550-2.003). 19% had Diabetes mellitus, 15% had Systemic Lupus Erythematosus and 5% were post renal transplant patients. Escherichia coli and Klebsiella pneumonia were the common causes of urinary tract infection at 40.7% and 15.3% respectively with 22% cases on extended beta lactam resistance. Conclusion There was no statistically significant difference on the incidence and anti-microbial isolates between HIV infected and HIV negative nephrology patients with urinary tract infection. Hence, empirical treatment for UTI should remain the same in the 2 groups. Escherichia coli and Klebsiella pneumoniae were the most commonly cultured organisms in both groups. There is microbial resistance to commonly used antibiotics. Constant assessment of anti-microbial sensitivity of urinary tract infections is of paramount importance.


2018 ◽  
Vol 2018 ◽  
pp. 1-14 ◽  
Author(s):  
Dong Sup Lee ◽  
Seung-Ju Lee ◽  
Hyun-Sop Choe

Urinary tract infections (UTIs) caused byEscherichia coli (E. coli)are the most common types of infections in women. The antibiotic resistance ofE. coliis increasing rapidly, causing physicians to hesitate when selecting oral antibiotics. In this review, our objective is to ensure that clinicians understand the current seriousness of antibiotic-resistantE. coli, the mechanisms by which resistance is selected for, and methods that can be used to prevent antibiotic resistance.


Author(s):  
Koffi Abdoul Koffi ◽  
Edèle Kacou Aka ◽  
Horo Apollinaire ◽  
Alice Mlan Britoh ◽  
Jean Marie Perel Konan

Background: Urinary tract infection is a common pathology during pregnancy due to hormonal and morphological changes. Objective of this study was to improve management of urinary tract infection during prenatal care.Methods: A total of 987 pregnant women who have been in prenatal care have freely accepted to participate in cross-sectional study carried out from 1st May 2016 to 30th April 2017 at Yopougon University Hospital (Abidjan Côte d’Ivoire) were included. Patients were submitted to questionnaire by one of investigators for epidemiological component and then physical examination was carried out by her attending physician for clinical component. Then at laboratory urine was taken for culture after dipstick test.Results: Of the 987 patients included 9.4% had a urinary tract infection of which 81.7% were asymptomatic. Significant risk factors retained were existence of a history of urinary tract infection (OR=0.46; p=0,038) and gestational age of pregnancy (OR=0.44; p=0.05). Urine culture isolated germs were mainly Escherichia Coli (51.6%) and Klebsiella pneumoniaie (23.6%). These germs were all susceptible to cephalosporins. They had resistances of more than 50% to penicillins.Conclusions: Escherichia coli and Klebsiella pneumoniae are most common germs of urinary tract infections in pregnant women. Escherichia coli is not susceptible to penicillins with a resistance of 70% for penicillins except for clavulanic acid amoxicillin. It appears as first choice antibiotic for our prescriptions in case of probabilistic antibiotic therapy.


Author(s):  
Khonaw Kader Salh

Background: The bacteria, Escherichia coli (E. coli) and Klebsiella pneumoniae (K. pneumoniae), are the main reasons for urinary tract infections (UTIs). This research aimed to investigate the isolation of etiologic agents from patients with UTI; it also investigates the antibiotic resistance activities and incidence of ESBL genes between different clinical separates of uropathogenic E. coli, determining their association with ESBL genes. Methods: The study enrolled 1000 positive growth isolates. The predominant pathogen associated with urinary tract infection, Gram-negative, were the main isolates from UTI patients, including E. coli, K. pneumoniae, Pseudomonas aeruginosa, Proteus mirabilis, Staphylococcus aureus and Enterococcus faecalis. Results: Among suspicious cases of urinary tract infection, we showed that 15.2% of the patients had UTI, and female patients in the childbearing age group were more affected. 644 E. coli (64.4%) and 322 (32.2%) K. pneumoniae were more isolated. Among 936 (93.6%) ESBL producing bacteria, 614 (61.4 %) E. coli showedhigh resistance to the antibiotics, Cefotaxime (85.7 %), Cefepime (85.7 %), Ciprofloxacin (83.1 %) and Kanamycin (77.9 %). Most ESBL-producing K. pneumoniae were multidrug-resistant (MDR). Nitrofurantoin, gentamycin, and imipenem were the most effective antibiotics for ESBL-producing E. coli isolates. Conclusion: This study shows that the high rates of MDR Escherichia coli infection in our hospital were frequentative reasons for UTI. Nitrofurantoin and aminoglycosides were the most beneficial first-line drugs to be applied in the cases of UTI. It is recommended to conduct regular investigations on the drug resistance of all isolates and formulate helpful antibiotic treatment policies in China. It is important to determine the prevalence of ESBL in urine E. coli and K. pneumoniae isolates because it has a great influence on the selection of suitable antibacterial agents. In short, more than half of ESBL producers have multiple drug resistance (MDR).


2017 ◽  
Author(s):  
Brenda Yin Qi Tien ◽  
Hwee Mian Sharon Goh ◽  
Kelvin Kian Long Chong ◽  
Soumili Bhaduri-Tagore ◽  
Sarah Holec ◽  
...  

AbstractEnterococcus faecalis, a member of the human gastrointestinal microbiota, is an opportunistic pathogen associated with hospital-acquired wound, bloodstream, and urinary tract infections.E. faecaliscan subvert or evade immune-mediated clearance, although the mechanisms are poorly understood. In this study, we examinedE. faecalis-mediated subversion of macrophage activation. We observed thatE. faecalisactively prevents NF-κB signaling in mouse RAW264.7 macrophages in the presence of Toll-like receptor agonists and during polymicrobial infection withEscherichia coli.E. faecalisandE. colico-infection in a mouse model of catheter-associated urinary tract infection (CAUTI) resulted in a suppressed macrophage transcriptional response in the bladder compared toE. coliinfection alone. Finally, we demonstrated that co-inoculation ofE. faecaliswithE. coliinto catheterized bladders significantly augmentedE. coliCAUTI. Taken together, these results support thatE. faecalissuppression of NF-κB-driven responses in macrophages promotes polymicrobial CAUTI pathogenesis.Author SummarySynergistic polymicrobial infections can contribute to both disease severity and persistence.Enterococcus faecalisandEscherichia coliare frequently co-isolated from polymicrobial urinary tract infections. Immunomodulation by co-infecting microbes can result in a more permissive environment for pathogens to establish infection. Presently, we do not yet understand how these microbes overcome host immunity to establish polymicrobial infections. To address this, we investigated how the immunosuppressive function ofE. faecaliscan contribute to acute infection. We defined thatE. faecalisis able to suppress macrophagesin vitro, despite the presence ofE. coli. We also demonstratedE. faecalis’ability to augmentE. colititersin vivoto establish kidney infection. Our findings raise the prospect thatE. faecaliscan alter host immunity to increase susceptibility to other uropathogens.


mSphere ◽  
2018 ◽  
Vol 3 (4) ◽  
Author(s):  
Reina Yamaji ◽  
Cindy R. Friedman ◽  
Julia Rubin ◽  
Joy Suh ◽  
Erika Thys ◽  
...  

ABSTRACT There is increasing evidence that retail food may serve as a source of Escherichia coli that causes community-acquired urinary tract infections, but the impact of this source in a community is not known. We conducted a prospective, population-based study in one community to examine the frequency of recovery of uropathogenic E. coli genotypes from retail meat samples. We analyzed E. coli isolates from consecutively collected urine samples of patients suspected to have urinary tract infections (UTIs) at a university-affiliated health service and retail meat samples from the same geographic region. We genotyped all E. coli isolates by multilocus sequence typing (MLST) and tested them for antimicrobial susceptibility. From 2016 to 2017, we cultured 233 E. coli isolates from 230 (21%) of 1,087 urine samples and 177 E. coli isolates from 120 (28%) of 427 retail meat samples. Urine samples contained 61 sequence types (STs), and meat samples had 95 STs; 12 STs (ST10, ST38, ST69, ST80, ST88, ST101, ST117, ST131, ST569, ST906, ST1844, and ST2562) were common to both. Thirty-five (81%) of 43 meat isolates among the 12 STs were from poultry. Among 94 isolates in the 12 STs, 26 (60%) of 43 retail meat isolates and 15 (29%) of 51 human isolates were pan-susceptible (P < 0.005). We found that 21% of E. coli isolates from suspected cases of UTIs belonged to STs found in poultry. Poultry may serve as a possible reservoir of uropathogenic E. coli (UPEC). Additional studies are needed to demonstrate transmission pathways of these UPEC genotypes and their food sources. IMPORTANCE Community-acquired urinary tract infection caused by Escherichia coli is one of the most common infectious diseases in the United States, affecting approximately seven million women and costing approximately 11.6 billion dollars annually. In addition, antibiotic resistance among E. coli bacteria causing urinary tract infection continues to increase, which greatly complicates treatment. Identifying sources of uropathogenic E. coli and implementing prevention measures are essential. However, the reservoirs of uropathogenic E. coli have not been well defined. This study demonstrated that poultry sold in retail stores may serve as one possible source of uropathogenic E. coli. This finding adds to a growing body of evidence that suggests that urinary tract infection may be a food-borne disease. More research in this area can lead to the development of preventive strategies to control this common and costly infectious disease.


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