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Sohrabi M, Fathi J, Mohebi S, Hashemizadeh Z, Kholdi S, Hadadi M, Keshavarz K, Darvishvand Z. High prevalence of plasmid-mediated quinolone resistance in escherichia coli strains producing extended-spectrum beta-lactamases isolated from faeces and urine of pregnant women with acute cystitis. Mol Biol Rep 2024; 51:566. [PMID: 38656625 DOI: 10.1007/s11033-024-09491-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 03/27/2024] [Indexed: 04/26/2024]
Abstract
BACKGROUND Escherichia coli is the most common etiological agent of urinary tract infections (UTIs). Meanwhile, plasmid-mediated quinolone resistance (PMQR) is reported in E. coli isolates producing extended-spectrum β-lactamases (ESBLs). Furthermore, the reservoirs and mechanisms of acquisition of uropathogenic Escherichia coli (UPEC) strains are poorly understood. On the other hand, UTIs are common in pregnant women and the treatment challenge is alarming. METHODS AND RESULTS In the present study, 54 pregnant women with acute cystitis were included. A total of 108 E. coli isolates, 54 isolates from UTI and 54 isolates from faeces of pregnant women (same host) were collected. In the antimicrobial susceptibility test, the highest rate of antibiotic resistance was to nalidixic acid (77%, 83/108) and the lowest rate was to imipenem (9%, 10/108). Among the isolates, 44% (48/108) were ESBLs producers. A high frequency of PMQR genes was observed in the isolates. The frequency of PMQR genes qnrS, qnrB, aac(6')-Ib-cr, and qnrA was 58% (63/108), 21% (23/108), 9% (10/108), and 4% (4/108), respectively. Meanwhile, PMQR genes were not detected in 24% (20/85) of isolates resistant to nalidixic acid and/or fluoroquinolone, indicating that other mechanisms, i.e. chromosomal mutations, are involved in resistance to quinolones, which were not detected in the present study. In ESBL-producing isolates, the frequency of PMQR genes was higher than that of non-ESBL-producing isolates (81% vs. 53%). Meanwhile, UTI and faeces isolates mainly belonged to phylogenetic group B2 (36/54, 67% and 25/54, 46%, respectively) compared to other phylogenetic groups. In addition, virulence factors and multidrug-resistant (MDR) were mainly associated with phylogenetic group B2. However, predominant clones in faeces were not found in UTIs. Rep-PCR revealed the presence of 85 clones in patients. Among the clones, 40 clones were detected only in faeces (faeces-only), 35 clones only in UTI (UTI-only) and 10 clones in both faeces and UTI (faeces-UTI). We found that out of 10 faeces-UTI clones, 5 clones were present in the host's faeces flora. CONCLUSION This study revealed a high rate of resistance to the quinolone nalidixic acid and a widespread distribution of PMQR genes in MDR E. coli strains producing ESBLs. The strains represented virulence factors and phylogenetic group B2 are closely associated with abundance in UTI and faeces. However, the predominant clones in faeces were not found in UTIs and it is possible that rep-PCR is not sufficiently discriminating clones.
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Affiliation(s)
- Maryam Sohrabi
- Department of Bacteriology and Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Javad Fathi
- Department of Bacteriology and Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Samane Mohebi
- Department of Bacteriology and Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Hashemizadeh
- Department of Bacteriology and Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
- Basic Sciences in Infectious Diseases Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Soudeh Kholdi
- Department of Bacteriology and Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mahtab Hadadi
- Department of Bacteriology and Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Kowsar Keshavarz
- Department of Bacteriology and Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Darvishvand
- Department of Bacteriology and Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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Rafat D, Agrawal A, Khalid S, Khan AU, Nawab T, Sultan A. Bacterial abundance and antimicrobial resistance patterns of uropathogens among pregnant women with asymptomatic bacteriuria: Association with glycemic status. Eur J Obstet Gynecol Reprod Biol X 2024; 21:100263. [PMID: 38149040 PMCID: PMC10750033 DOI: 10.1016/j.eurox.2023.100263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 11/10/2023] [Accepted: 11/24/2023] [Indexed: 12/28/2023] Open
Abstract
Objectives Antimicrobial resistance (AMR), a growing global menace, poses a significant threat to maternal and fetal health. Gestational diabetes mellitus (GDM) causes double trouble in pregnancy, increasing the risk of a variety of infectious morbidities while also raising the possible association with AMR. Asymptomatic bacteriuria (ASB) is a common problem in pregnancy, but little research has been done to date explicitly examining the relationship between GDM and ASB and yielded conflicting results. Even fewer studies have specifically examined the relationship between GDM and AMR in women with ASB. Retrieving the most recent information on the disease burden, the range of causative pathogens, their patterns of AMR, and associated risk factors in pregnant women is crucial to stop the exponential rise in AMR in pregnancy and improve maternal and neonatal outcomes of infectious morbidities. Hence, this study was planned to investigate the association between glycemic status and the contemporary bacterial profile, antimicrobial resistance(AMR), and associated variables among pregnant women with ASB. Study design This prospective, hospital-based, cross-sectional study was conducted among 320 pregnant women; divided into two groups, GDM and non-GDM. Data regarding sociodemographic and clinical characteristics were collected using a structured questionnaire. Clean-catch midstream urine samples were investigated for the presence of significant bacterial uropathogens and their AMR pattern was determined using recommended culture methods. Results We found ASB in 46.25% of study participants with significantly higher occurrence in the GDM group. Dominant isolates were Escherichia coli followed by Klebsiella pneumoniae. AMR was noted in 51.35% and multidrug resistance(MDR) in 23.65% of isolates. Overall AMR, MDR and higher degrees of AMR were higher among uropathogens isolated from the GDM group as compared to the non GDM group, although the difference was not statistically significant. Conclusion The high occurrence of ASB in pregnancy along with substantially high AMR in this study suggests the need for effective infection control and stewardship programmes. By defining the association of ASB and AMR with hyperglycemia, our study calls for the exploitation of this potential association in halting the pandemic of AMR and in improving the management of infectious morbidities, thus in-turn alleviating their undesired maternal and infant outcomes.
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Affiliation(s)
- Dalia Rafat
- Dept of Obstetrics & Gynaecology, Jawaharlal Nehru Medical College, Faculty of Medicine, AMU, Aligarh, UP, India
| | - Anubha Agrawal
- Dept of Obstetrics & Gynaecology, Jawaharlal Nehru Medical College, Faculty of Medicine, AMU, Aligarh, UP, India
| | - Shamsi Khalid
- Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, AMU, Aligarh, UP, India
| | - Asad U. Khan
- Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, AMU, Aligarh, UP, India
| | - Tabassum Nawab
- Dept of Community Medicine, Jawaharlal Nehru Medical College, Faculty of Medicine, AMU, Aligarh, UP, India
| | - Asfia Sultan
- Dept of Microbiology, Jawaharlal Nehru Medical College, Faculty of Medicine, AMU, Aligarh, UP, India
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Khatoon S, Sultan A, Khan F, Khan T, Singh A. An insight into genes responsible for fosfomycin resistance among uropathogens of asymptomatic bacteriuria during pregnancy: A North Indian study. Access Microbiol 2023; 5:000623.v5. [PMID: 38188241 PMCID: PMC10765046 DOI: 10.1099/acmi.0.000623.v5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 10/28/2023] [Indexed: 01/09/2024] Open
Abstract
Purpose Asymptomatic bacteriuria (ASB) is a common finding during pregnancy. Effective antibiotic treatment could reduce its adverse effects on both mother and fetus. However, emerging antimicrobial resistance limits the treatment options. Fosfomycin might be a promising drug in this regard, as its resistance is still low. The aim of the study was to determine the antimicrobial susceptibility pattern of fosfomycin in isolates causing ASB by disc diffusion and agar dilution (in selected isolates), determine minimum inhibitory contribution (MIC) by agar dilution in isolates resistant by disc diffusion and detect the genes responsible for fosfomycin resistance. Methods This was a 2-year study carried in the Department of Microbiology, Jawaharlal Nehru Medical College and Hospital (JNMCH), Aligarh Muslim University (AMU), Aligarh. A total of 10 252 urine samples from asymptomatic pregnant females (18-45 years) attending the antenatal care (ANC) outpatient department (OPD) were submitted. Identification of pathogen and antimicrobial susceptibility testing (AST) was carried out as per standard methods of CLSI. There was phenotypic detection of methicillin-resistant Staphylococcus aureus (MRSA) and other Staphylococcus species (MRSS), high-level aminoglycoside resistance (HLAR), vancomycin resistant Enterococci (VRE) and S. aureus (VRSA), extended spectrum β-lactamase (ESBL) and carbapenem-resistant Enterobacterales (CRE). All the fosfomycin-resistant isolates (by disk diffusion) were tested by agar dilution. Conventional PCR was performed for murA, fosA, uhpT and glpT genes on all resistant isolates. Result In this study, the prevalence of ASB among pregnant females was 1173(11.4 %), in which Escherichia coli 495(42 %) was the predominant organism. The overall sensitivity of fosfomycin among Gram-positive cocci (GPC) and Gram-negative bacilli (GNB) was 99 % and 97.6 %, respectively. MRSA and MRSS accounted for 50 (66.6 %) and 71 (76 %), respectively. The highest rates of MIC >2048 µg ml-1 were shown by most isolates (mainly E. coli ) on agar dilution. PCR studies revealed four E. coli strains possessed both murA (also present in one K. pneumoniae strain) and glpT genes. While only one isolate ( E. faecalis ) was positive for fosA gene. But none of the strain possessed the uhpT gene. Conclusion According to this study, murA and glpT genes were more frequent than fosA. We cannot comment on the prevalence and regional distribution of fosfomycin-resistant genes based on this preliminary study. Therefore, more Indian studies should be carried out to create awareness about the presence of genes in a particular area.
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Affiliation(s)
- Sajda Khatoon
- Department of Microbiology, Jawaharlal Nehru Medical College and Hospital, AMU, Aligarh, India
| | - Asfia Sultan
- Department of Microbiology, Jawaharlal Nehru Medical College and Hospital, AMU, Aligarh, India
| | - Fatima Khan
- Department of Microbiology, Jawaharlal Nehru Medical College and Hospital, AMU, Aligarh, India
| | - Tamkin Khan
- Department of Obstetrics and Gynaecology, Jawaharlal Nehru Medical College and Hospital, AMU, Aligarh, India
| | - Anuradha Singh
- Department of Microbiology, Jawaharlal Nehru Medical College and Hospital, AMU, Aligarh, India
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Abstract
SUMMARY Urinary tract infection (UTI) is one of the more common perinatal complications, affecting approximately 8% of pregnancies (1, 2). These infections represent a spectrum, from asymptomatic bacteriuria, to symptomatic acute cystitis, to the most serious, pyelonephritis. The presence of UTIs has been associated with adverse pregnancy outcomes, including increased rates of preterm delivery and low birth weight. Screening for and treating asymptomatic bacteriuria have been shown in multiple studies to reduce the incidence of pyelonephritis in pregnancy (3-5). Given the frequency at which UTIs are encountered in pregnancy, the ability to recognize, diagnose, and treat them is essential for those providing care to pregnant individuals. This Clinical Consensus document was developed using an established protocol in conjunction with the authors listed.
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Gamberini C, Donders S, Al-Nasiry S, Kamenshchikova A, Ambrosino E. Antibiotic Use in Pregnancy: A Global Survey on Antibiotic Prescription Practices in Antenatal Care. Antibiotics (Basel) 2023; 12:antibiotics12050831. [PMID: 37237734 DOI: 10.3390/antibiotics12050831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 04/25/2023] [Accepted: 04/26/2023] [Indexed: 05/28/2023] Open
Abstract
Antibiotic prescription and use practices in the antenatal care setting varies across countries and populations and has the potential to significantly contribute to the global spread of antibiotic resistance. This study aims to explore how healthcare practitioners make decisions about antibiotic prescriptions for pregnant women and what factors play a role in this process. A cross-sectional exploratory survey consisting of 23 questions, including 4 free-text and 19 multiple-choice questions, was distributed online. Quantitative data were collected through multiple-choice questions and was used to identify the most common infections diagnosed and the type of antibiotics prescribed. Qualitative data were gathered through free-text answers to identify gaps, challenges, and suggestions, and the data were analyzed using thematic analysis. A total of 137 complete surveys mostly from gynecologists/obstetricians from 22 different countries were included in the analysis. Overall, national and international clinical guidelines and hospital guidelines/protocols were the most frequently used sources of information. This study highlights the crucial role of laboratory results and guidelines at different levels and emphasizes region-specific challenges and recommendations. These findings underscore the pressing need for tailored interventions to support antibiotic prescribers in their decision-making practice and to address emerging resistance.
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Affiliation(s)
- Carlotta Gamberini
- Institute for Public Health Genomics (IPHG), Department of Genetics and Cell Biology, Research School GROW for Oncology and Reproduction, Faculty of Health, Medicine & Life Sciences, Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Sabine Donders
- Institute for Public Health Genomics (IPHG), Department of Genetics and Cell Biology, Research School GROW for Oncology and Reproduction, Faculty of Health, Medicine & Life Sciences, Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Salwan Al-Nasiry
- Department of Obstetrics and Gynecology, Research School GROW for Oncology and Reproduction, Maastricht University Medical Centre+, 6229 HX Maastricht, The Netherlands
| | - Alena Kamenshchikova
- Department of Health, Ethics and Society, School of Public Health and Primary Care, Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Elena Ambrosino
- Institute for Public Health Genomics (IPHG), Department of Genetics and Cell Biology, Research School GROW for Oncology and Reproduction, Faculty of Health, Medicine & Life Sciences, Maastricht University, 6229 ER Maastricht, The Netherlands
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Kindinger LM, Linton H, James CP, Mallet C, Curtis C, Macrae B, David AL. Mixed Bacterial Growth in Prenatal Urine Cultures; An Investigation into Prevalence, Contributory Factors and the Impact of education-based Interventions. Matern Child Health J 2023:10.1007/s10995-023-03615-6. [PMID: 36913031 PMCID: PMC10359349 DOI: 10.1007/s10995-023-03615-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/04/2023] [Indexed: 03/14/2023]
Abstract
PURPOSE Undiagnosed urinary tract infections (UTIs) in pregnancy are associated with adverse perinatal outcome. Urine microbiology cultures reported as 'mixed bacterial growth' (MBG) frequently present a diagnostic dilemma for healthcare providers. We investigated external factors contributing to elevated rates of (MBG) within a large tertiary maternity centre in London, UK, and assessed the efficacy of health service interventions to mitigate these. DESCRIPTION This prospective, observational study of asymptomatic pregnant women attending their first prenatal clinic appointment aimed to establish (i) the prevalence of MBG in routine prenatal urine microbiology cultures, (ii) the association between urine cultures and the duration to laboratory processing and (iii) ways in which MBG may be reduced in pregnancy. Specifically we assessed the impact of patient-clinician interaction and that of an education package on optimal urine sampling technique. ASSESSMENT Among 212 women observed over 6 weeks, the negative, positive and MBG urine culture rates were 66%, 10% and 2% respectively. Shorter duration from urine sample collection to laboratory arrival correlated with higher rates of negative cultures. Urine samples arriving in the laboratory within 3 hours of collection were most likely to be reported as culture negative (74%), and were least likely to be reported as MBG (21%) or culture positive (6%), compared to samples arriving > 6 hours (71%, 14% and 14% respectively; P < 0.001). A midwifery education package effectively reduced rates of MBG (37% pre-intervention vs 19% post-intervention, RR 0.70, 95% CI 0.55 to 0.89). Women who did not receive verbal instructions prior to providing their sample had 5-fold higher rates of MBG (P < 0.001). CONCLUSION As many as 24% of prenatal urine screening cultures are reported as MBG. Patient-midwife interaction before urine sample collection and rapid transfer of urine samples to the laboratory within 3 hours reduces the rate of MBG in prenatal urine cultures. Reinforcing this message through education may improve accuracy of test results.
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Affiliation(s)
- Lindsay M Kindinger
- Elizabeth Garrett Anderson, Institute for Women's Health, Faculty of Population Health Sciences, Medical School Building, University College London, 74 Huntley Street, London, WC1E 6AU, UK. .,Maternal Fetal Medicine Department, Obstetrics and Gynaecology, King Edward Memorial Hospital, Subiaco, Perth, WA, 6008, Australia.
| | - Hannah Linton
- Elizabeth Garrett Anderson, Institute for Women's Health, Faculty of Population Health Sciences, Medical School Building, University College London, 74 Huntley Street, London, WC1E 6AU, UK.,Children and Young People's General Services, University College London Hospital NHS Foundation Trust, 235 Euston Road, London, NW1 2BU, UK
| | - Catherine P James
- Elizabeth Garrett Anderson, Institute for Women's Health, Faculty of Population Health Sciences, Medical School Building, University College London, 74 Huntley Street, London, WC1E 6AU, UK
| | - Camille Mallet
- Women's Health Division, Elizabeth Garrett Anderson Wing, University College London Hospital NHS Foundation Trust, 25 Grafton Way, London, WC1E 6DB, UK
| | - Carmel Curtis
- Clinical Microbiology, 5th Floor Central, University College London Hospital NHS Foundation Trust, 250 Euston Road, London, NW1 2PG, UK
| | - Bruce Macrae
- Clinical Microbiology, 5th Floor Central, University College London Hospital NHS Foundation Trust, 250 Euston Road, London, NW1 2PG, UK
| | - Anna L David
- Elizabeth Garrett Anderson, Institute for Women's Health, Faculty of Population Health Sciences, Medical School Building, University College London, 74 Huntley Street, London, WC1E 6AU, UK.,Women's Health Division, Elizabeth Garrett Anderson Wing, University College London Hospital NHS Foundation Trust, 25 Grafton Way, London, WC1E 6DB, UK
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Antimicrobial Resistance and Implications: Impact on Pregnant Women with Urinary Tract Infections. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2022. [DOI: 10.22207/jpam.16.2.20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Urinary Tract Infections (UTI) is one of the most common infections, especially among women. Presently accessible antibiotics are a clinician’s first line of defense to treat infections, but antimicrobial resistance menace to reduce their efficacy. The consequences of multi-drug resistance to antibiotics are enhanced morbidity and mortality rates. The yearly death toll is >700,000 population worldwide, rising to ~10 million by 2050. There is a lack of novel antibiotics for UTIs as the return on its investment is poor compared to medicines for lifestyle diseases. The three organisms of utmost worry are methicillin-resistant Staphylococcus aureus (MRSA), Carbapenems and third-generation Cephalosporins resistant Klebsiella pneumoniae, Fluoroquinolones and third-generation Cephalosporins resistant Escherichia coli (E. coli). Among these, Escherichia coli is the foremost cause of community-acquired UTI infections throughout the globe, mainly due to the absence of alertness and inappropriate wastewater treatment. The purpose of this review article is to explore literature on uropathogens, the pattern of their antimicrobial resistance, and the hospital practices concerning the spread, as inadequate studies have been carried out and published on this topic. Hospital personnel are usually familiar with the management of infections, but most do not understand the conditions in their hospital. Implications of hospital practices play a major role in controlling hospital-acquired UTIs and the burden of its antimicrobial resistance. A complete approach involving financial and human resources will improve the infection control practices in hospitals without a doubt. Strict infection control measures in hospitals can help to reduce the number of hospital-acquired infections in pregnant women.
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Haindongo EH, Funtua B, Singu B, Hedimbi M, Kalemeera F, Hamman J, Vainio O, Hakanen AJ, Vuopio J. Antimicrobial resistance among bacteria isolated from urinary tract infections in females in Namibia, 2016-2017. Antimicrob Resist Infect Control 2022; 11:33. [PMID: 35151360 PMCID: PMC8840701 DOI: 10.1186/s13756-022-01066-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 01/21/2022] [Indexed: 01/08/2023] Open
Abstract
Background The emergence of antimicrobial resistance (AMR) among bacterial pathogens demands a local understanding of the epidemiological situation. This information is needed both for clinical treatment decision-making purposes as well as for the revision of current care guidelines. Clinical AMR data from Namibia is sparse, whilst urinary tract infections remain not only widespread but they disproportionally affect females. This paper aims to describe the national antimicrobial resistance situation of major bacterial uropathogens in females within the 14 Namibian regions. Method Retrospective countrywide information on clinical urine cultures performed in females in Namibia in 2016–2017 was obtained from the national public health laboratory, Namibia Institute of Pathology (NIP). The data set included both microbiological findings as well as antimicrobial susceptibility test (AST) results. The AST was done as per the Clinical and Laboratory Standards Institute (CLSI) guidelines. Resistance to 3rd generation cephalosporins was indicative of Extended Spectrum-ß-lactamase (ESBL) production. Data analysis was done with WHONET using expert interpretation rules. Results In total, 22,259 urinary cultures were performed, of which 13,673 (61.4%) were culture positive. Gram-negative bacterial species accounted for 72.6% of the findings. The most common pathogens identified were Escherichia coli, Klebsiella pneumoniae and Proteus mirabilis. Most of these were from young females, with a median age ranging from 28 to 32 years for the various pathogens. Resistance to ampicillin was 77.7% in E. coli and 84.9% in K. pneumoniae. In E. coli, resistance to 1st line empiric therapy antibiotic, nitrofurantoin, was below 13%, except for one region that showed 59.2% resistance. Resistance to third generation cephalosporin (3GC) was used as a proxy for ESBL production. By year 2017, 3GC resistance was 22%, 31.4% and 8.3% for E. coli, K. pneumoniae and P. mirabilis, respectively. Conclusion We report high resistance to ampicillin, quinolones and sulfamethoxazole-trimethoprim amongst E. coli. Resistance rates to third-generation cephalosporins was also concerningly high at 22%. Resistance to carbapenems was low. However, superiority of nitrofurantoin was found, which provides rational support for the usefulness of nitrofurantoin as an empiric therapy regimen for the treatment of urinary tract infections in this setting. Supplementary Information The online version contains supplementary material available at 10.1186/s13756-022-01066-2.
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Affiliation(s)
- Erastus H Haindongo
- School of Medicine, Faculty of Health Sciences, University of Namibia, Windhoek, Namibia. .,Institute of Biomedicine, University of Turku, Turku, Finland.
| | - Binta Funtua
- School of Pharmacy, Faculty of Health Sciences, University of Namibia, Windhoek, Namibia
| | - Boni Singu
- School of Pharmacy, Faculty of Health Sciences, University of Namibia, Windhoek, Namibia
| | - Marius Hedimbi
- School of Medicine, Faculty of Health Sciences, University of Namibia, Windhoek, Namibia
| | - Francis Kalemeera
- School of Pharmacy, Faculty of Health Sciences, University of Namibia, Windhoek, Namibia
| | - Jana Hamman
- Namibia Institute of Pathology, Windhoek, Namibia
| | - Olli Vainio
- Faculty of Medicine, University of Turku, Turku, Finland
| | - Antti J Hakanen
- Institute of Biomedicine, University of Turku, Turku, Finland.,Department of Clinical Microbiology, Laboratory Division, Turku University Hospital, Turku, Finland
| | - Jaana Vuopio
- Institute of Biomedicine, University of Turku, Turku, Finland.,Department of Clinical Microbiology, Laboratory Division, Turku University Hospital, Turku, Finland
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A systematic review and meta-analysis on the prevalence of Escherichia coli and extended-spectrum β-lactamase-producing Escherichia coli in pregnant women. Arch Gynecol Obstet 2021; 303:363-379. [PMID: 33386957 DOI: 10.1007/s00404-020-05903-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 11/17/2020] [Indexed: 01/05/2023]
Abstract
PROPOSE The aim of the present study was to determine the prevalence of E. coli and extended-spectrum β-lactamase-producing (ESBL) E. coli in pregnant women in a systematic review and meta-analysis study. METHODS We searched important databases, including Medline (PubMed), Embase, Scopus, Web of sciences, Cochrane library, Ovid, and CINHAL to retrieve all articles reporting the prevalence of ESBL E. coli in pregnant women that published from January 1990 to June 2020. RESULTS The pooled prevalence of E. coli in pregnant women with and without symptoms of UTI after combining 82 studies with a sample size of 33,118 was 29% (29%; %95 CI 23, 36%). The prevalence based on urine, Feacal, and vagina samples was 26% (% 95 CI 19-34%), 77% (% 95 CI 22-98%), and 32% (% 95 CI 17-48%), respectively. Also, 19 studies with a sample size of 9,200 reported ESBL E. coli prevalence in pregnant women. After combining the results of these studies, the pooled prevalence of ESBL E. coli in pregnant women was 34% (34%; %95 CI 24, 43%). The pooled prevalence of E. coli in pregnant women with HIV was 9%(9%; %95 CI 7, 11%). CONCLUSION According to the results of this study, the prevalence of E. coli and ESBL E. coli is high in pregnant women. Also, the overuse of antibiotics was higher in European and Asian pregnant women than other continents.
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Prevalence of Community Acquired Uropathogens and their Antimicrobial Susceptibility in Patients from the Urology Unit of A Tertiary Care Medical Center. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2020. [DOI: 10.22207/jpam.14.3.40] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Urinary tract infections (UTI) are one of the most common community acquired infections and can also present with similar lower urinary tract symptoms (LUTS). Moreover, UTI can be a complication of these urological diseases. Thus, this study was conducted in patients with LUTS to find out the prevalence of uro-pathogens and their antibiotic susceptibility pattern so that appropriate antibiotics can be started on clinical suspicion of UTI. The study was conducted over a period of 12 months. Culture and susceptibility of urine specimen was done as per standard microbiological guidelines. Apart from the growth of common bacteria with their antibiogram, Methicillin-resistant Staphylococcus aureus (MRSA), high level aminoglycoside resistance (HLAR) was investigated among Enterococci, and metallo beta-lactamases(MBL) production was production was investigated among gram-negative pathogens. Out of 407 urine samples included in the study, 80 (19.6%) samples showed bacterial growth. The commonest isolate was E. coli 44 (55 %). Majority of the isolates were multidrug resistant with two E.coli strains showing pan-resistance to the first line drugs tested. Carbapenem resistance was seen in 67.2% of all gram negative isolates tested. Metallo beta-lactamases production was found to be highest among the Klebsiella isolates. Among the Enterobacterales, highest susceptibility was noted to Fosfomycin (87.7%) followed by Nitrofurantoin (62.7%). Similarly in gram positive group, highest susceptibility was again to Fosfomycin followed by Nitrofurantoin. Overall the prevalence of MDR is increasing however Fosfomycin or Nitrofurantoin, both oral antibiotics, can be the considered for starting empirical antibiotic therapy.
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11
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Ghouri F, Hollywood A. Antibiotic Prescribing in Primary Care for Urinary Tract Infections (UTIs) in Pregnancy: An Audit Study. Med Sci (Basel) 2020; 8:medsci8030040. [PMID: 32957591 PMCID: PMC7564384 DOI: 10.3390/medsci8030040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 09/02/2020] [Accepted: 09/10/2020] [Indexed: 11/16/2022] Open
Abstract
Urinary tract infections (UTIs) are associated with negative pregnancy outcomes and are treated with antibiotics. Although beneficial, antibiotic use causes antimicrobial resistance (AMR), and therefore their use needs to be carefully balanced. Antimicrobial guidelines are developed to facilitate appropriate prescribing of antibiotics. This study assessed antibiotic prescribing for UTIs in pregnancy against the National Institute for Health and Care Excellence (NICE) guideline NG109. Fifty antibiotic prescribing records dated from 1st October 2018 to 1st July 2019 were identified from three London-based GP practices. The results show that a mid-stream sample of urine, which is important for the review and tailoring of antibiotic treatment, was collected in 77.6% of cases. Prescribing the first-line antibiotic is important for adequate treatment and good antimicrobial stewardship and results show that 44% of prescriptions were for the first-choice antibiotic. Most prescriptions (56%) were for a second-line or non-recommended antibiotic. Providing self-care advice is key to empowering pregnant women in managing their own health but only 16% of records documented provision of self-care advice. This study highlights important areas of concern in the management of UTIs in pregnancy. However, due to the retrospective design, future work is needed to evaluate the role of AMR in the prescriber’s treatment decision-making process.
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Belete MA. Bacterial Profile and ESBL Screening of Urinary Tract Infection Among Asymptomatic and Symptomatic Pregnant Women Attending Antenatal Care of Northeastern Ethiopia Region. Infect Drug Resist 2020; 13:2579-2592. [PMID: 32801795 PMCID: PMC7395684 DOI: 10.2147/idr.s258379] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 07/05/2020] [Indexed: 12/20/2022] Open
Abstract
Background Urinary tract infection is a common cause of morbidity in pregnant women. Emergence of antimicrobial resistance particularly ESBL production among bacterial uropathogens is increasing and becoming principal cause of treatment failure. The aim of this study was to determine the bacterial profile, their antimicrobial susceptibility patterns, risk factors and identify ESBL-producing bacterial uropathogens. Patients and Methods A hospital-based cross-sectional study was conducted in the Northeastern Ethiopia region. A total of 323 pregnant women were included and structured questionnaire was used to collect sociodemographic and risk factor-related data. About 10mL freshly voided midstream urine specimen was collected, transported and processed according to standard operating procedures. The data obtained were entered into SPSS version 22 and descriptive statistics, chi-square, bivariate and multivariate logistic regression analyses were performed. P-value ≤0.05 with corresponding 95% confidence interval were considered for statistical significance. Results The overall prevalence of UTI was 15.5% (50/323). The predominant bacterial isolates were Escherichia coli 17 (33.3%) followed by coagulase-negative staphylococci 15 (30.0%) and Staphylococcus aureus 14 (27.5%). Previous history of UTI (AOR=8.824, 95% CI: 3.769,20.654, P<0.001) and history of catheterization (AOR=3.270, 95% CI: 1.316,8.122, P=0.011) were significantly associated with the occurrence of bacterial UTI. Gram-negative isolates showed high level of resistance to ampicillin 12 (60.0%) and relatively low level of resistance to nitrofurantoin 5(25.0%), norfloxacin 5 (25.0%) and ceftazidime 3 (15.0%). Gram-positive uropathogens showed higher resistance for penicillin 29 (93.5%) and trimethoprim-sulfamethoxazole 23 (79.3%) whereas all isolates were sensitive 29 (100.0%) to nitrofurantoin. Moreover, multidrug resistance was observed among 41 (80.4%) of the isolates, and 3 (15.8%) of isolated gram-negative bacteria were ESBL producers. Conclusion High prevalence of bacterial UTI and MDR for commonly prescribed drugs were observed with significant number of ESBL producers. Therefore, instant UTI culture assessment of pregnant women, especially those having possible risk factors such as previous histories of UTI and catheterization; moreover, appropriate prescription and use of antibiotics are necessary.
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Affiliation(s)
- Melaku Ashagrie Belete
- Department of Medical Laboratory Science, College of Medicine and Health Science, Wollo University, Dessie, Ethiopia
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Joosten P, Van Cleven A, Sarrazin S, Paepe D, De Sutter A, Dewulf J. Dogs and Their Owners Have Frequent and Intensive Contact. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17124300. [PMID: 32560155 PMCID: PMC7345801 DOI: 10.3390/ijerph17124300] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 06/12/2020] [Accepted: 06/14/2020] [Indexed: 12/24/2022]
Abstract
Contact and interactions between owners and their pets may have beneficial physical and social effects on people, but may also facilitate the transmission of zoonotic agents and resistant bacteria. To estimate the risk of these contacts, more information regarding the frequency and intensity of this physical contact is required. Therefore, an online survey was conducted among pet owners resulting in 701 completed questionnaires. Questions regarding the interactions between dogs and owners were linked with a score from 1 (limited interactions) to 3 (highly intense interactions). After scoring these self-reported interactions, a contact intensity score was calculated for each respondent by summing up the different allocated scores from all questions. This contact intensity score was used to identify predictors of more intense contact based on a multivariable linear regression model. Interactions between dogs and their owners were widespread (e.g., 85.3% of the dogs licked their owner’s hand) and intense (e.g., 49.3% of owners reported being licked in the face). The gender, age, and place of residence (city, village, or countryside) of the respondent, together with the size and age of the dog, were significantly associated with the contact intensity score in the multivariable model. On average, female respondents younger than 65 years who lived in the city and had a small young dog had the most intense contact with it. Further research is necessary to evaluate the risk of these interactions in light of zoonotic and antimicrobial resistance transfer.
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Affiliation(s)
- Philip Joosten
- Veterinary Epidemiology Unit, Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, 9820 Merelbeke, Belgium; (A.V.C.); (S.S.); (J.D.)
- Correspondence: ; Tel.: +32-926-475-48
| | - Alexia Van Cleven
- Veterinary Epidemiology Unit, Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, 9820 Merelbeke, Belgium; (A.V.C.); (S.S.); (J.D.)
| | - Steven Sarrazin
- Veterinary Epidemiology Unit, Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, 9820 Merelbeke, Belgium; (A.V.C.); (S.S.); (J.D.)
| | - Dominique Paepe
- Small Animal Department, Faculty of Veterinary Medicine, Ghent University, 9820 Merelbeke, Belgium;
| | - An De Sutter
- Department of General Practice and Primary Health Care, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium;
| | - Jeroen Dewulf
- Veterinary Epidemiology Unit, Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, 9820 Merelbeke, Belgium; (A.V.C.); (S.S.); (J.D.)
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Belete MA, Saravanan M. A Systematic Review on Drug Resistant Urinary Tract Infection Among Pregnant Women in Developing Countries in Africa and Asia; 2005-2016. Infect Drug Resist 2020; 13:1465-1477. [PMID: 32547115 PMCID: PMC7245001 DOI: 10.2147/idr.s250654] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 05/01/2020] [Indexed: 11/29/2022] Open
Abstract
Background Urinary tract infection is one of the most common health problems during pregnancy. It is most commonly reported among pregnant women and is a known reason of morbidity during pregnancy worldwide, predominantly in developing countries. The etiological agents include Escherichia coli, Klebsiella species, Staphylococcus aureus, coagulase negative Staphylococci, Proteus mirabilis, Enterococcus species, Pseudomonas aeruginosa, Enterobacter species, non-hemolytic streptococci, Citrobacter species and others. Different risk factors expose pregnant women to urinary tract infection. Drug resistance by uropathogenic bacteria is a current problem of the world. This study was aimed at reviewing the prevalence of bacterial uropathogens and their antimicrobial resistance patterns among pregnant women in developing countries in Asia and Africa, during the past decade. Methods A systematic literature search was accomplished to identify published studies between January 2005 and November 2016. The literature search strategy in this paper included searching PubMed, PMC, Science Direct, Springer open, Google scholar and BioMed Central databases. Results The overall prevalence of UTI among pregnant women was 13.5%. Both Gram-positive and Gram-negative bacteria were isolated from all eligible studies. Gram-negative bacteria (83.7%) accounted for majority of infections while Gram positives accounted for 15.9%. Among the isolated bacteria, Escherichia coli was the most predominant uropathogen; it was shown to be present in all 26 eligible studies that were included in this review. Four studies from Africa and four from Asia were reviewed for antimicrobial resistance patterns of uropathogenic bacteria. In most of the regions, almost all the bacterial uropathogens had high resistance to ampicillin (67.2%) whereas all the strains showed relative sensitivity to ciprofloxacin (71.2%), nitrofurantoin (65%) and ceftriaxone (74.1%). Conclusion The prevalence of UTI in the selected regions of the two continents is different. A significant prevalence of UTI among pregnant women is mainly observed in Africa and Asia. Uropathogenic bacteria showed resistance to antimicrobial drugs that are regularly used in developing countries. This may show the need to incorporate culture and drug susceptibility tests into the routine antenatal care for pregnant women and drug resistance should be monitored.
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Affiliation(s)
- Melaku Ashagrie Belete
- Department of Medical Laboratory Science, College of Medicine and Health Science, Wollo University, Dessie 1145, Ethiopia
| | - Muthupandian Saravanan
- Department of Medical Microbiology and Immunology, Division of Biomedical Sciences, School of Medicine, College of Health Sciences, Mekelle University, Mekelle, 1871, Ethiopia
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Emami A, Javanmardi F, Pirbonyeh N. Antibiotic resistant profile of asymptomatic bacteriuria in pregnant women: a systematic review and meta-analysis. Expert Rev Anti Infect Ther 2020; 18:807-815. [PMID: 32321329 DOI: 10.1080/14787210.2020.1759420] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
OBJECTIVES Different microorganisms contribute in the pregnancy bacteriuria, which resistance microorganisms limited the therapeutic options for the treatment and increasing the related risks to pregnant women and their pregnancy. Based on this, asymptomatic bacteriuria and the use of inappropriate empirical antibiotics are dangerous in the emergence of pregnancy complications and the incidence of drug resistant. METHODS A comprehensive systematic search was performed on all international databases including Scopus, PubMed, Web of Science, Medline, Cochrane library during 2000 - June 2019. This meta-analysis, which was registered by a pre-defined protocol in PROSPRO, carried out in accordance with PRISMA guideline. Relevant articles were included in the analysis if reported the susceptibility pattern of antimicrobial resistance related to asymptomatic bacteria in pregnant women with no acute diseases. Overall prevalence and related 95% confidence interval for resistance in different asymptomatic infections were estimated by inverse variance method. The random effect model was used in case of considerable heterogeneity. RESULTS Results of this analysis demonstrated different resistance rate against studied classes of antibiotics. Nitrofurantoin resistance in E. coli, Klebsiella sp, P. aeruginosa, and Staphylococcus aureus isolates were estimated 0.22 (95%CI: 0.15-0.30), 0.40 (95%CI: 0.26-0.54), 0.81 (95%CI: 0.59-0.97), 0.34 (0.11-0.63), respectively. Subgroups analysis showed highest resistance in E. coli isolates, in Asia and Africa against Cefotaxime and Ampicillin, respectively. CONCLUSION In summary, increasing resistance rate in urinary tract infection (UTI)-related agents is a risk factor that endangers both mother and fetus. Health care providers should consider screening as the radical part of infection control strategies. Due to low resistance rate to Nitrofurantoin, this drug can be a good choice for UTI treatment in pregnancies, but it should use with caution.
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Affiliation(s)
- Amir Emami
- Burn & Wound Healing Research Center, Microbiology Department, Shiraz University of Medical Sciences , Shiraz, Iran
| | - Fatemeh Javanmardi
- Burn & Wound Healing Research Center, Microbiology Department, Shiraz University of Medical Sciences , Shiraz, Iran
| | - Neda Pirbonyeh
- Burn & Wound Healing Research Center, Microbiology Department, Shiraz University of Medical Sciences , Shiraz, Iran
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Ghouri F, Hollywood A, Ryan K. 'There is no choice apart from antibiotics…': Qualitative analysis of views on urinary infections in pregnancy and antimicrobial resistance. Health Expect 2020; 23:644-650. [PMID: 32113189 PMCID: PMC7321732 DOI: 10.1111/hex.13044] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 01/13/2020] [Accepted: 02/11/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Antimicrobial resistance (AMR) is a health risk as it can lead to life-threatening infections. There has been a rise in resistant urinary tract infections (UTIs) which is the most common infection in pregnancy. This can be challenging in pregnancy due to the additional need to safeguard foetal development. The study's aim was to explore views about AMR in women who experienced UTIs in pregnancy. DESIGN Fifteen semi-structured interviews were conducted in the UK and analysed using thematic analysis. RESULTS Results highlighted two themes: conceptualization of AMR and pregnancy as a deviation from the norm, with an overarching theme of 'self-efficacy'. Results show that participants were concerned about AMR but uncertain about the effect on society compared to individual's taking antibiotics and about completing antibiotic courses. Participants reported an unsparing use of antibiotics was justified in pregnancy, and behaviours like drinking adequate water were ineffective at preventing UTIs. In summary, women had low self-efficacy regards tackling AMR and managing their health. CONCLUSION Misconceptions about how AMR affects society vs the individual translated into viewing it as a future problem to be tackled by the health-care sector. Consequently, AMR requires reconceptualization as a current problem requiring collective action. This research also indicates women endorse a biomedical model of UTIs in pregnancy which attributes resolving illness to interventions such as medicines, implying an automatic reliance on antibiotics. Subsequently, there is a need for self-efficacy by focusing on a behavioural model which emphasizes behaviours for infection prevention, thus reducing the need for antibiotics.
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Affiliation(s)
- Flavia Ghouri
- School of Pharmacy, University of Reading, Reading, UK
| | | | - Kath Ryan
- School of Pharmacy, University of Reading, Reading, UK
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Lee AC, Mullany LC, Koffi AK, Rafiqullah I, Khanam R, Folger LV, Rahman M, Mitra DK, Labrique A, Christian P, Uddin J, Ahmed P, Ahmed S, Mahmud A, DasGupta SK, Begum N, Quaiyum MA, Saha SK, Baqui AH. Urinary tract infections in pregnancy in a rural population of Bangladesh: population-based prevalence, risk factors, etiology, and antibiotic resistance. BMC Pregnancy Childbirth 2019; 20:1. [PMID: 31892316 PMCID: PMC6938613 DOI: 10.1186/s12884-019-2665-0] [Citation(s) in RCA: 156] [Impact Index Per Article: 31.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 12/06/2019] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Urinary tract infection (UTI) in pregnancy, including asymptomatic bacteriuria, is associated with maternal morbidity and adverse pregnancy outcomes, including preterm birth and low birthweight. In low-middle income countries (LMICs), the capacity for screening and treatment of UTIs is limited. The objective of this study was to describe the population-based prevalence, risk factors, etiology and antimicrobial resistance patterns of UTIs in pregnancy in Bangladesh. METHODS In a community-based cohort in Sylhet district, Bangladesh, urine specimens were collected at the household level in 4242 pregnant women (< 20 weeks gestation) for culture and antibiotic susceptibility testing. Basic descriptive analysis was performed, as well as logistic regression to calculate adjusted odds ratios (aOR) for UTI risk factors. RESULTS The prevalence of UTI was 8.9% (4.4% symptomatic UTI, 4.5% asymptomatic bacteriuria). Risk factors for UTI in this population included maternal undernutrition (mid-upper arm circumference <23 cm: aOR= 1.29, 95% CI: 1.03-1.61), primiparity (aOR= 1.45, 95% CI: 1.15-1.84), and low paternal education (no education: aOR= 1.56, 95% CI: 1.09-2.22). The predominant uro-pathogens were E. coli (38% of isolates), Klebsiella (12%), and staphyloccocal species (23%). Group B streptococcus accounted for 5.3% of uro-pathogens. Rates of antibiotic resistance were high, with only two-thirds of E. coli susceptible to 3rd generation cephalosporins. CONCLUSIONS In Sylhet, Bangladesh, one in 11 women had a UTI in pregnancy, and approximately half of cases were asymptomatic. There is a need for low-cost and accurate methods for UTI screening in pregnancy and efforts to address increasing rates of antibiotic resistance in LMIC.
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Affiliation(s)
- Anne Cc Lee
- Department of Pediatric Newborn Medicine, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, 02115, USA.
| | - Luke C Mullany
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N Wolfe St, Baltimore, MD, 21205, USA
| | - Alain K Koffi
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N Wolfe St, Baltimore, MD, 21205, USA
| | - Iftekhar Rafiqullah
- Department of Microbiology and Immunology, University of Mississippi Medical Center (UMMC), 2500 N State St, Jackson, MS, 39216, USA
| | - Rasheda Khanam
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N Wolfe St, Baltimore, MD, 21205, USA
| | - Lian V Folger
- Department of Pediatric Newborn Medicine, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, 02115, USA
| | - Mahmoodur Rahman
- Maternal and Child Health Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), 68, Shaheed Tajuddin Ahmed Sarani, Mohakhali, Dhaka, 1212, Bangladesh
| | - Dipak K Mitra
- North South University, Plot #15, Block #B, Bashundhara R/A, Dhaka, 1229, Bangladesh
| | - Alain Labrique
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N Wolfe St, Baltimore, MD, 21205, USA
| | - Parul Christian
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N Wolfe St, Baltimore, MD, 21205, USA
- Bill and Melinda Gates Foundation, 440 5th Avenue North, Seattle, WA, 98109, USA
| | - Jamal Uddin
- Save the Children Bangladesh, House No. CWN (A) 35, Road No. 43 Gulshan 2, Dhaka, 1212, Bangladesh
| | - Parvez Ahmed
- Institute of Epidemiology Disease Control and Research, Mohakhali, Dhaka, 1212, Bangladesh
| | - Salahuddin Ahmed
- Projahnmo Research Foundation, House: 37, Road:27, Block: A, Banani, Dhaka, 1213, Bangladesh
| | - Arif Mahmud
- School of Community Health and Policy, Morgan State University, Baltimore, MD, 21251, USA
| | - Sushil K DasGupta
- Maternal and Child Health Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), 68, Shaheed Tajuddin Ahmed Sarani, Mohakhali, Dhaka, 1212, Bangladesh
| | - Nazma Begum
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N Wolfe St, Baltimore, MD, 21205, USA
| | - Mohammad A Quaiyum
- Maternal and Child Health Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), 68, Shaheed Tajuddin Ahmed Sarani, Mohakhali, Dhaka, 1212, Bangladesh
| | - Samir K Saha
- Department of Microbiology, Dhaka Shishu Hospital, Sher-E-Banglanagar, Child Health Research Foundation, Dhaka, 1207, Bangladesh
| | - Abdullah H Baqui
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, 615 N Wolfe St, Baltimore, MD, 21205, USA
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Abstract
BACKGROUND Asymptomatic bacteriuria is a bacterial infection of the urine without any of the typical symptoms that are associated with a urinary infection, and occurs in 2% to 15% of pregnancies. If left untreated, up to 30% of mothers will develop acute pyelonephritis. Asymptomatic bacteriuria has been associated with low birthweight and preterm birth. This is an update of a review last published in 2015. OBJECTIVES To assess the effect of antibiotic treatment for asymptomatic bacteriuria on the development of pyelonephritis and the risk of low birthweight and preterm birth. SEARCH METHODS For this update, we searched the Cochrane Pregnancy and Childbirth's Trials Register, ClinicalTrials.gov, the WHO International Clinical Trials Registry Platform (ICTRP) on 4 November 2018, and reference lists of retrieved studies. SELECTION CRITERIA Randomised controlled trials (RCT) comparing antibiotic treatment with placebo or no treatment in pregnant women with asymptomatic bacteriuria found on antenatal screening. Trials using a cluster-RCT design and quasi-RCTs were eligible for inclusion, as were trials published in abstract or letter form, but cross-over studies were not. DATA COLLECTION AND ANALYSIS Two review authors independently assessed trials for inclusion and risk of bias, extracted data, and checked for accuracy. We assessed the quality of the evidence using the GRADE approach. MAIN RESULTS We included 15 studies, involving over 2000 women. Antibiotic treatment compared with placebo or no treatment may reduce the incidence of pyelonephritis (average risk ratio (RR) 0.24, 95% confidence interval (CI) 0.13 to 0.41; 12 studies, 2017 women; low-certainty evidence). Antibiotic treatment may be associated with a reduction in the incidence of preterm birth (RR 0.34, 95% CI 0.13 to 0.88; 3 studies, 327 women; low-certainty evidence), and low birthweight babies (average RR 0.64, 95% CI 0.45 to 0.93; 6 studies, 1437 babies; low-certainty evidence). There may be a reduction in persistent bacteriuria at the time of delivery (average RR 0.30, 95% CI 0.18 to 0.53; 4 studies; 596 women), but the results were inconclusive for serious adverse neonatal outcomes (average RR 0.64, 95% CI 0.23 to 1.79, 3 studies; 549 babies). There were very limited data on which to estimate the effect of antibiotics on other infant outcomes, and maternal adverse effects were rarely described. Overall, we judged only one trial at low risk of bias across all domains; the other 14 studies were assessed as high or unclear risk of bias. Many studies lacked an adequate description of methods, and we could only judge the risk of bias as unclear, but in most studies, we assessed at least one domain at high risk of bias. We assessed the quality of the evidence for the three primary outcomes with GRADE software, and found low-certainty evidence for pyelonephritis, preterm birth, and birthweight less than 2500 g. AUTHORS' CONCLUSIONS Antibiotic treatment may be effective in reducing the risk of pyelonephritis in pregnancy, but our confidence in the effect estimate is limited given the low certainty of the evidence. There may be a reduction in preterm birth and low birthweight with antibiotic treatment, consistent with theories about the role of infection in adverse pregnancy outcomes, but again, the confidence in the effect is limited given the low certainty of the evidence. Research implications identified in this review include the need for an up-to-date cost-effectiveness evaluation of diagnostic algorithms, and more evidence to learn whether there is a low-risk group of women who are unlikely to benefit from treatment of asymptomatic bacteriuria.
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Affiliation(s)
- Fiona M Smaill
- McMaster UniversityDepartment of Pathology and Molecular Medicine, Faculty of Health Sciences1200 Main Street WestRoom 2N29HamiltonONCanadaL8N 3Z5
| | - Juan C Vazquez
- Instituto Nacional de Endocrinologia (INEN)Departamento de Salud ReproductivaZapata y DVedadoHabanaCuba10 400
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Mansouri F, Sheibani H, Javedani Masroor M, Afsharian M. Extended-spectrum beta-lactamase (ESBL)-producing Enterobacteriaceae and urinary tract infections in pregnant/postpartum women: A systematic review and meta-analysis. Int J Clin Pract 2019; 73:e13422. [PMID: 31532050 DOI: 10.1111/ijcp.13422] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 08/17/2019] [Accepted: 09/13/2019] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Urinary tract infections (UTI) and asymptomatic bacteriuria (AB) during pregnancy can result in considerable maternal and foetal adverse outcomes. Production of extended-spectrum beta-lactamase (ESBL) is a major antibiotic resistance mechanism by Enterobacteriaceae. OBJECTIVES To determine the global prevalence of ESBL-producing (ESBL-P) Enterobacteriaceae in symptomatic UTI/AB among pregnant/postpartum females. DATA SOURCES A systematic review of the PubMed, Embase, Scopus, WOS (Web of Science), ProQuest and the grey literature was conducted. STUDY SELECTION AND DATA EXTRACTION Studies that reported the frequency of ESBL-P Enterobacteriaceae in pregnant/postpartum women with UTI and/or AB were eligible. First, the titles and abstracts of the retrieved articles were reviewed. Then, the full texts of the remained articles were reviewed. SYNTHESIS In order to estimate the pooled prevalence and the 95% confidence interval (95% CI), meta-analysis was performed using the random-effects model. RESULTS Twenty-three studies (six from Africa, two from North America, one from South America, 12 from Asia and two European studies) that reported data on 20 033 Enterobacteriaceae strains were included. The pooled prevalence of ESBL-P Enterobacteriaceae was 25% (95% CI 18%, 32%); I2 = 98.8%. The estimated prevalence (95% CI) rates were 45% (22, 67%) in Africa, 33% (22, 44%) in India, 15% (6, 24%) in other Asian countries, 5% (2, 8%) in Europe, 4% (1, 11%) in South America and 3% (1, 5%) in North America (P < .001). This estimate was 21% (95% CI 11, 31%) in patients with symptomatic UTI and it was 28% (95% CI 15, 41%) in patients with AB (P = .40). CONCLUSIONS The prevalence of ESBL-P Enterobacteriaceae among pregnant women with UTI/AB was significant and geographic region was a major source for heterogeneity. The findings could be taken into account by healthcare providers and programmers in the management and antibiotic selection of UTI/AB during pregnancy, especially in high prevalence areas.
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Affiliation(s)
- Feizollah Mansouri
- Infectious Diseases Department, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Hossein Sheibani
- Clinical Research Development Unit, Imam Hossein Hospital, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Mojgan Javedani Masroor
- Research and Clinical Center of Gynecology and Fertility, Shahid Akbar-Abadi Hospital, Iran University of Medical Science, Tehran, Iran
| | - Mandana Afsharian
- Infectious Diseases Department, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
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Youssef MM, Rizk HA, Hassuna NA. Phenotypic and Genotypic Characterization of Extended-Spectrum β-Lactamase-Producing Enterobacteriaceae in Asymptomatic Bacteriuria in Pregnancy. Microb Drug Resist 2019; 25:731-738. [PMID: 30676863 DOI: 10.1089/mdr.2018.0088] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Asymptomatic bacteriuria (ASB) has been consistently observed in pregnancy. However, there is a paucity of data on the prevalence and characteristics of extended-spectrum β-lactamase (ESBL)-producing Enterobacteriaceae in ASB in pregnant women. Therefore, we sought to investigate ESBL-producing and multidrug-resistant Enterobacteriaceae in antenatal women with ASB. Urine samples were collected from 310 asymptomatic pregnant women attending primary antenatal clinics and screened for significant bacteriuria. Isolates of Enterobacteriaceae were phenotypically tested for their ESBL production. ESBL genes (CTX-M, TEM, and SHV genes) were then amplified by polymerase chain reaction (PCR). Multiplex PCRs were used to perform phylogenetic typing of ESBL-producing Escherichia coli isolates and to examine the commonality of sequence type 131 (ST131)-O25b and ST131-O16. A total of 103 (33.2%) pregnant women were positive for significant bacteriuria (80 Enterobacteriaceae). Of these isolates, 32.5% (n = 26) were ESBL producers and had a higher rate of multidrug resistance than non-ESBL producers. Genotypic characterization of ESBL-producing isolates showed that 84.6% had the blaCTX-M gene (blaCTX-M-15 = 77.3%; blaCTX-M-9 = 18.2%). None of the isolates were of the TEM or SHV type. Half of the ESBL-producing E. coli isolates were of the phylogroup B2, and 4 (20%) isolates were of the ST131-O16 clonal subgroup. This study is the first in Egypt to provide evidence for the high prevalence of ESBL-producing Enterobacteriaceae in pregnant women with ASB. It also represents an important step toward genotypic characterization of this resistant form of bacteria, which may be useful for future antimicrobial studies.
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Affiliation(s)
- Mariam M Youssef
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Minia University, Minia, Egypt
| | - Hazim A Rizk
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Minia University, Minia, Egypt
| | - Noha A Hassuna
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Minia University, Minia, Egypt
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In Vivo Efficacy of Meropenem with a Novel Non-β-Lactam-β-Lactamase Inhibitor, Nacubactam, against Gram-Negative Organisms Exhibiting Various Resistance Mechanisms in a Murine Complicated Urinary Tract Infection Model. Antimicrob Agents Chemother 2018; 62:AAC.02596-17. [PMID: 30012751 DOI: 10.1128/aac.02596-17] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 07/05/2018] [Indexed: 11/20/2022] Open
Abstract
Urinary tract infections (UTIs) are a tremendous burden on the health care system due to the vast number of infections resulting in antibiotic therapy and/or hospitalization. Additionally, these infections are frequently caused by multidrug-resistant (MDR) organisms, limiting the availability of effective antimicrobials. Nacubactam is a novel non-β-lactam-β-lactamase inhibitor with in vitro activity against class A and class C β-lactamases. Nacubactam is being developed in combination with meropenem, providing broad-spectrum activity in addition to improved stability against common β-lactamases. Here, we utilized a neutropenic murine complicated UTI (cUTI) model to determine the potential clinical utility of meropenem-nacubactam compared with meropenem or nacubactam alone against 10 Klebsiella pneumoniae, Escherichia coli, and Enterobacter cloacae isolates with diverse genotypic and phenotypic profiles, including NDM, KPC, OXA, CTX-M, SHV, and TEM enzyme-producing isolates. Selected isolates had meropenem-nacubactam MICs between 1 and 8 μg/ml. Meropenem-nacubactam demonstrated the greatest in vivo efficacy against 9 of 10 isolates, achieving a ≥3 log reduction from the 48-h control in all isolates tested, including isolates prepared as high inoculums. Nacubactam alone confirmed antibacterial properties, achieving a >1 log reduction against the majority of isolates. The combination of meropenem-nacubactam further enhanced the activity of either agent alone, notably against meropenem-resistant isolates. Against ceftazidime-avibactam-resistant isolates, meropenem-nacubactam demonstrated increased antibacterial kill upwards of 6 log10 CFU in comparison to the 48-h control. Our data support the potential clinical utility of meropenem-nacubactam for cUTI in humans against MDR Enterobacteriaceae, although further clinical data supporting meropenem-nacubactam efficacy are needed.
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Chu CM, Lowder JL. Diagnosis and treatment of urinary tract infections across age groups. Am J Obstet Gynecol 2018; 219:40-51. [PMID: 29305250 DOI: 10.1016/j.ajog.2017.12.231] [Citation(s) in RCA: 129] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2017] [Revised: 12/18/2017] [Accepted: 12/27/2017] [Indexed: 01/20/2023]
Abstract
Urinary tract infections are the most common outpatient infections, but predicting the probability of urinary tract infections through symptoms and test results can be complex. The most diagnostic symptoms of urinary tract infections include change in frequency, dysuria, urgency, and presence or absence of vaginal discharge, but urinary tract infections may present differently in older women. Dipstick urinalysis is popular for its availability and usefulness, but results must be interpreted in context of the patient's pretest probability based on symptoms and characteristics. In patients with a high probability of urinary tract infection based on symptoms, negative dipstick urinalysis does not rule out urinary tract infection. Nitrites are likely more sensitive and specific than other dipstick components for urinary tract infection, particularly in the elderly. Positive dipstick testing is likely specific for asymptomatic bacteriuria in pregnancy, but urine culture is still the test of choice. Microscopic urinalysis is likely comparable to dipstick urinalysis as a screening test. Bacteriuria is more specific and sensitive than pyuria for detecting urinary tract infection, even in older women and during pregnancy. Pyuria is commonly found in the absence of infection, particularly in older adults with lower urinary tract symptoms such as incontinence. Positive testing may increase the probability of urinary tract infection, but initiation of treatment should take into account risk of urinary tract infection based on symptoms as well. In cases in which the probability of urinary tract infection is moderate or unclear, urine culture should be performed. Urine culture is the gold standard for detection of urinary tract infection. However, asymptomatic bacteriuria is common, particularly in older women, and should not be treated with antibiotics. Conversely, in symptomatic women, even growth as low as 102 colony-forming unit/mL could reflect infection. Resistance is increasing to fluoroquinolones, beta-lactams, and trimethoprim-sulfamethoxazole. Most uropathogens still display good sensitivity to nitrofurantoin. First-line treatments for urinary tract infection include nitrofurantoin, fosfomycin, and trimethoprim-sulfamethoxazole (when resistance levels are <20%). These antibiotics have minimal collateral damage and resistance. In pregnancy, beta-lactams, nitrofurantoin, fosfomycin, and trimethoprim-sulfamethoxazole can be appropriate treatments. Interpreting the probability of urinary tract infection based on symptoms and testing allows for greater accuracy in diagnosis of urinary tract infection, decreasing overtreatment and encouraging antimicrobial stewardship.
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Ghouri F, Hollywood A, Ryan K. A systematic review of non-antibiotic measures for the prevention of urinary tract infections in pregnancy. BMC Pregnancy Childbirth 2018; 18:99. [PMID: 29653573 PMCID: PMC5899369 DOI: 10.1186/s12884-018-1732-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 04/05/2018] [Indexed: 11/16/2022] Open
Abstract
Background Urinary tract infections (UTIs) are common in pregnancy and account for the highest proportion of primary care antibiotic prescriptions issued to pregnant women in the UK. It is well known that antibiotic use is associated with increased antimicrobial resistance and therefore measures to minimise antibiotic use for UTI prevention have been studied. The efficacy and safety of these measures in pregnancy have not been addressed and therefore the aim of this study was to systematically review the literature to identify and evaluate potential measures to prevent UTIs in pregnant women. Methods Ten databases (EMBASE, AMED, BNI, CINAHL, Medline, PubMed, PsycINFO, Cochrane Trials, Scopus and Science Direct) were systematically searched in July 2017 for studies reporting non-antibiotic measures to prevent UTIs in pregnancy. The terms (“urinary tract infection” or UTI or bacteriuria or cystitis) AND (prevention) AND (pregnan*) were used. The quality of the publications was appraised using the Critical Appraisal Skills Programme (CASP) checklists for cohort study, case-control study and randomised controlled trial. The results were synthesised using a textual narrative approach. Results Search results yielded 3276 publications and after reviewing titles and removing duplicates, 57 full text articles were assessed for eligibility and eight were included in the review. Five different approaches (hygiene measures, cranberry juice, immunisation, ascorbic acid and Canephron® N) have been identified, all of which are reported to be safe in pregnancy. Conclusion The quality of the evidence varied considerably and only hygiene measures were supported by evidence to be recommended in practice. Future work needs to concentrate on strengthening the evidence base through improved design and reporting of studies with a focus on immunisation, ascorbic acid and Canephron® N. Electronic supplementary material The online version of this article (10.1186/s12884-018-1732-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Flavia Ghouri
- School of Pharmacy, University of Reading, PO Box 226, Whiteknights, Reading, RG6 6AP, UK
| | - Amelia Hollywood
- School of Pharmacy, University of Reading, PO Box 226, Whiteknights, Reading, RG6 6AP, UK.
| | - Kath Ryan
- School of Pharmacy, University of Reading, PO Box 226, Whiteknights, Reading, RG6 6AP, UK
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Gessese YA, Damessa DL, Amare MM, Bahta YH, Shifera AD, Tasew FS, Gebremedhin EZ. Urinary pathogenic bacterial profile, antibiogram of isolates and associated risk factors among pregnant women in Ambo town, Central Ethiopia: a cross-sectional study. Antimicrob Resist Infect Control 2017; 6:132. [PMID: 29299306 PMCID: PMC5747040 DOI: 10.1186/s13756-017-0289-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Accepted: 12/18/2017] [Indexed: 11/10/2022] Open
Abstract
Background Urinary tract infection (UTI) is a well-known bacterial infection posing serious health problem in pregnant women. A study was conducted in pregnant women with the objectives of estimating prevalence of UTI, determining antibiogram of the bacterial isolates and assessment of the potential risk factors associated with UTI. Methods A cross-sectional study design was used to collect 300 mid-stream urine samples from pregnant women from March 2016 to December, 2016. Samples were inoculated into Cysteine Lactose Electrolyte Deficient medium (CLED). Colonies from CLED were subcultured onto MacConkey and Blood agar plates. A standard agar disc diffusion method was used to determine antimicrobial susceptibility. Chi-square (X2) test & logistic regression were used to show associations between UTI and explanatory variables & identify the predictors of UTI, respectively. Results The age of pregnant women enrolled in this study ranges from 16 to 46 years (mean ± standard deviation = 25 ± 4.7 years).The overall prevalence of UTI in pregnant women was 18.7% (95% confidence interval [CI]: 14.4-23.54%).The prevalence of symptomatic and asymptomatic UTI was 20.4% (95% CI: 13.09-29.46%) and 17.8% (95% CI: 12.70-23.83%) respectively. The predominant bacteria identified were E. coli (46.4%), S. aureus (14.3%), coagulase negative Staphylococci [CoNS] (14.3%) and Proteus species (10.6%). Majority of Gram-negative bacteria isolates were resistant to ampicillin (70%), ceftriaxon (66%), gentamicin (68%) and nitrofurantoin (64%) while 75-100% of the Gram positive isolates were resistance to ampicillin. Multiple drug resistance was observed in all of the isolates. Multivariable logistic regression revealed that the odds of acquiring UTI was 4.78 times higher in pregnant women earning monthly income of ≤500 Ethiopian Birr (21.18 USD) as compared to those earning monthly income >2001 Ethiopian Birr [84.79 USD] (P = 0.046). Similarly, the risk of UTI was higher in those who eat raw meat (OR = 2.04, 95% CI: 1.09, 3.83, P = 0.026) and had previous UTI history (OR = 2.29, 95% CI = 1.15-4.56, P = 0.019) as compared to those who eat cooked meat and had no previous history of UTI. Conclusions The prevalence & antimicrobial resistance of uropathogens was high. Health education, continuous surveillance of UTI and their antimicrobial resistance pattern are essential to reduce the consequence of symptomatic and asymptomatic bacteriuria and multi-drug resistant bacteria in pregnant women.
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Affiliation(s)
- Yonas Alem Gessese
- Department of Medical Laboratory Sciences, Ambo University, College of Medicine and Health Sciences, Ambo, Ethiopia
| | - Dereje Leta Damessa
- West Shewa Health Bureau, Ambo District Health Office, Awaro Health Center, Ambo, Ethiopia
| | - Mebratenesh Mengistu Amare
- Department of Medical Laboratory Sciences, Ambo University, College of Medicine and Health Sciences, Ambo, Ethiopia
| | - Yonas Hailesilassie Bahta
- Department of Medical Laboratory Sciences, Ambo University, College of Medicine and Health Sciences, Ambo, Ethiopia
| | - Assalif Demisew Shifera
- Department of Medical Laboratory Sciences, Ambo University, College of Medicine and Health Sciences, Ambo, Ethiopia
| | | | - Endrias Zewdu Gebremedhin
- Department of Veterinary Laboratory Technology, Ambo University, College of Agriculture and Veterinary Sciences, Ambo, Ethiopia
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Inflammatory markers as risk factors for infection with multidrug-resistant microbes in diabetic foot subjects. Foot (Edinb) 2017; 32:44-48. [PMID: 28802182 DOI: 10.1016/j.foot.2017.05.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 05/01/2017] [Indexed: 02/04/2023]
Abstract
BACKGROUND Diabetic foot ulcers (DFUs), a dreadful microvascular complication of diabetes is responsible for substantial increase in morbidity and mortality. Infection, not a cause, but a consequence in DFUs that accounts for minor or major limb loss. The current study aimed to evaluate the microbial etiology of infected diabetic foot ulcers in northern tertiary care hospital, assessment of risk factors and role of inflammatory markers involved in colonization of multidrug-resistant organisms (MDROs) and their impact on the outcome. METHODS Pus aspirates and soft tissue samples from 65 patients with infected DFUs were collected and processed for aerobic culture analysis. Serum concentrations of IL-6 and TNF-α were determined by enzyme linked immuno-sorbent assay. RESULTS Aerobic gram-negative isolates were more commonly present (74.7%), followed by gram-positive aerobes (25.2%). Fifty-seven percent patients were positive for MDROs. IL-6 (pg/mL) was significantly lower in diabetic patients with MDROs infected foot ulcers than without (47.0±17.2 vs. 78.3±22.1 vs. p=<0.001) and TNF-α (pg/mL) was also significantly diminished in MDROs infected subjects than without (144.2±25.8 vs. 168.7±20.9, p<0.001) respectively. CONCLUSIONS In this study diabetic foot wounds harbored by MDROs were associated with longer duration of ulcer and increased ulcer size. Poor glycemic control was also a confounding factor in mounting MDROs infected ulcers. The declined levels WBCs and neutrophils as well as of cytokines IL-6 and TNF-alpha explains compromised immune responses of host in multi drug resistant infections.
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Newman JW, Floyd RV, Fothergill JL. The contribution of Pseudomonas aeruginosa virulence factors and host factors in the establishment of urinary tract infections. FEMS Microbiol Lett 2017; 364:3866593. [DOI: 10.1093/femsle/fnx124] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 06/09/2017] [Indexed: 12/26/2022] Open
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Evaluation of sampling locations in pregnant women and newborns for the detection of colonisation with antibiotic-resistant bacteria. Eur J Clin Microbiol Infect Dis 2017; 36:1819-1826. [PMID: 28474179 DOI: 10.1007/s10096-017-2997-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 04/21/2017] [Indexed: 10/19/2022]
Abstract
Up to now, little has been known about the prevalence and clinical relevance of colonisation of asymptomatic pregnant women with methicillin-susceptible Staphylococcus aureus (MSSA), methicillin-resistant S. aureus (MRSA) or extended-spectrum β-lactamase (ESBL)-producing Escherichia coli. In this two-centre cross-sectional study, we evaluated the performance and importance of screening at different times and different locations for colonisation in pregnant women and newborns. Between October 2013 and December 2015, four samples were collected from pregnant women, two from newborns at birth and three from 3-day-old newborns. Samples were screened on culturing media and were confirmed with molecular methods. MSSA was used as a surrogate for MRSA, as the two share most microbiologic characteristics and colonisation patterns. Of 763 pregnant women, 14.5% (111) were colonised with MSSA, 0.4% (3) with MRSA and 2.6% (20) with ESBL-producing E. coli. Of 658 newborns, 0.9% (10) were colonised with MSSA at birth and 13.1% (70) at 3 days old, 0.5% (3) were colonised with MRSA and 2.6% (17) with ESBL-producing E. coli. Nasal sampling identified 91.0% of MSSA-colonised pregnant women and 60.0% of newborns. In newborns, nasal and umbilical sampling at 3 days after birth discovered 84.0% of colonised cases. For ESBL-producing E. coli, the perianal region was positive in all colonised pregnant women and in 88.2% of colonised newborns. Combining nasal and perianal swabs is optimal when screening for antibiotic-resistant bacteria in pregnant women. Nasal, perianal and umbilical sample collection from 3-day-old newborns significantly increased the sensitivity compared to screening immediately after birth.
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Passaro M, Mainini G, Ambrosio F, Sgambato R, Balbi G. Effect of a Food Supplement Containing L-Methionine on Urinary Tract Infections in Pregnancy: A Prospective, Multicenter Observational Study. J Altern Complement Med 2017; 23:471-478. [PMID: 28414519 DOI: 10.1089/acm.2016.0312] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE Adjuvants or alternatives to antibiotics in urinary tract infections (UTIs) during pregnancy seem advisable because of possible fetal stress. The present study assessed the effectiveness of a food supplement containing L-methionine and Hibiscus sabdariffa L. and Boswellia serrata Roxb. extracts as a treatment for symptomatic UTIs in pregnancy. DESIGN Pregnant patients with symptomatic cystitis were screened for UTIs in three different clinical centers. Those unwilling to take antibiotics were offered two alternative treatments: (A) a 1-week treatment with the food supplement or (B) a week in which they were advised to increase their fluid consumption to more than 1.5 L daily. After 1 week, group B patients who still had positive urine cultures (UCs) or had no UC performed took the food supplement for an additional week. UCs were performed on all patients at the first visit (w0) and on most of them at 7 days (w1). Patients who were still positive at w1 or had no UC performed at w1 had UC performed 14 days (w2) thereafter. RESULTS Of 264 pregnant women enrolled, 216 joined group A, while 48 joined group B. At w1, 70.0% of group A patients and 43.2% of those in group B had negative UCs (p = 0.003). The reduction of bacterial load was 42.2% ± 8.0% and 4.5% ± 9.2%, respectively (p < 0.0001). At w1, symptoms disappeared in 135 patients (62.5%) in group A and 22 patients (45.8%) in group B (p = 0.03). At w2, 30 of 32 group B patients who switched to taking the supplement for the second week had negative UCs, including 20 who had been positive at w1. At w2, all group A patients had negative UCs. No side effects were reported. CONCLUSIONS The food supplement provided effective treatment and might be an adjuvant or alternative to antibiotic therapy of symptomatic UTI in pregnancy.
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Affiliation(s)
| | - Giampaolo Mainini
- 2 Department of Gynecology and Obstetrics, San Leonardo Hospital , Castellammare di Stabia (NA), Italy
| | | | | | - Giancarlo Balbi
- 4 Department of Gynecology and Obstetrics, Sant'Anna and San Sebastiano Hospital, University of Campania "Luigi Vanvitelli ," Caserta, Italy
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Rana F, Siddiqui S, Khan A, Siddiqui F, Noreen Z, Bokhari S, Bokhari H. Resistance patterns of diversified phylogroups of Escherichia coli associated with mothers having history of preterm births in Pakistan. J Matern Fetal Neonatal Med 2016; 30:68-73. [DOI: 10.3109/14767058.2016.1163538] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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30
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Knowles SJ, Jacob AM, O'Dea G. Prevalence of multi-drug-resistant organism carriage in pregnant women. J Hosp Infect 2016; 93:68-9. [PMID: 27021400 DOI: 10.1016/j.jhin.2016.02.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 02/11/2016] [Indexed: 10/22/2022]
Affiliation(s)
- S J Knowles
- Department of Microbiology, National Maternity Hospital, Holles Street, Dublin D02 YH21, Ireland.
| | - A M Jacob
- Department of Microbiology, National Maternity Hospital, Holles Street, Dublin D02 YH21, Ireland
| | - G O'Dea
- Department of Microbiology, National Maternity Hospital, Holles Street, Dublin D02 YH21, Ireland
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Quorum sensing activity of Citrobacter amalonaticus L8A, a bacterium isolated from dental plaque. Sci Rep 2016; 6:20702. [PMID: 26860259 PMCID: PMC4748228 DOI: 10.1038/srep20702] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 01/11/2016] [Indexed: 12/21/2022] Open
Abstract
Cell-cell communication is also known as quorum sensing (QS) that happens in the bacterial cells with the aim to regulate their genes expression in response to increased cell density. In this study, a bacterium (L8A) isolated from dental plaque biofilm was identified as Citrobacter amalonaticus by matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry (MS). Its N-acylhomoserine-lactone (AHL) production was screened by using two types of AHL biosensors namely Chromobacterium violaceum CV026 and Escherichia coli [pSB401]. Citrobacter amalonaticus strain L8A was identified and confirmed producing numerous types of AHL namely N-butyryl-L-homoserine lactone (C4-HSL), N-hexanoyl-L-homoserine lactone (C6-HSL), N-octanoyl-L-homoserine lactone (C8-HSL) and N-hexadecanoyl-L-homoserine lactone (C16-HSL). We performed the whole genome sequence analysis of this oral isolate where its genome sequence reveals the presence of QS signal synthase gene and our work will pave the ways to study the function of the related QS genes in this bacterium.
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Flores-Mireles AL, Walker JN, Bauman TM, Potretzke AM, Schreiber HL, Park AM, Pinkner JS, Caparon MG, Hultgren SJ, Desai A. Fibrinogen Release and Deposition on Urinary Catheters Placed during Urological Procedures. J Urol 2016; 196:416-421. [PMID: 26827873 DOI: 10.1016/j.juro.2016.01.100] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/20/2016] [Indexed: 12/19/2022]
Abstract
PURPOSE Catheter associated urinary tract infections account for approximately 40% of all hospital acquired infections worldwide with more than 1 million cases diagnosed annually. Recent data from a catheter associated urinary tract infection animal model has shown that inflammation induced by catheterization releases host fibrinogen, which accumulates on the catheter. Further, Enterococcus faecalis catheter colonization was found to depend on EbpA (endocarditis and biofilm-associated pilus), a fibrinogen binding adhesin. We evaluated this mechanism in a human model. MATERIALS AND METHODS Urinary catheters were collected from patients hospitalized for surgical or nonsurgical urological procedures. Catheters were subjected to immunofluorescence analyses by incubation with antifibrinogen antibody and then staining for fluorescence. Fluorescence intensity was compared to that of standard catheters. Catheters were incubated with strains of Enterococcus faecalis, Staphylococcus aureus or Candida to assess binding of those strains to fibrinogen laden catheters. RESULTS After various surgical and urological procedures, 50 catheters were collected. In vivo dwell time ranged from 1 hour to 59 days. All catheters had fibrinogen deposition. Accumulation depended on dwell time but not on surgical procedure or catheter material. Catheters were probed ex vivo with E. faecalis, S. aureus and Candida albicans, which bound to catheters only in regions where fibrinogen was deposited. CONCLUSIONS Taken together, these data show that urinary catheters act as a binding surface for the accumulation of fibrinogen. Fibrinogen is released due to inflammation resulting from a urological procedure or catheter placement, creating a niche that can be exploited by uropathogens to cause catheter associated urinary tract infections.
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Affiliation(s)
- Ana L Flores-Mireles
- Department of Molecular Microbiology, Washington University School of Medicine, Saint Louis, MO 63110-1093, USA.,Center for Women's Infectious Disease Research, Washington University School of Medicine, Saint Louis, MO 63110-1093, USA
| | - Jennifer N Walker
- Department of Molecular Microbiology, Washington University School of Medicine, Saint Louis, MO 63110-1093, USA.,Center for Women's Infectious Disease Research, Washington University School of Medicine, Saint Louis, MO 63110-1093, USA
| | - Tyler M Bauman
- Division of Urologic Surgery, Washington University School of Medicine, Saint Louis, MO 63110-1093, USA
| | - Aaron M Potretzke
- Division of Urologic Surgery, Washington University School of Medicine, Saint Louis, MO 63110-1093, USA
| | - Henry L Schreiber
- Department of Molecular Microbiology, Washington University School of Medicine, Saint Louis, MO 63110-1093, USA.,Center for Women's Infectious Disease Research, Washington University School of Medicine, Saint Louis, MO 63110-1093, USA
| | - Alyssa M Park
- Division of Urologic Surgery, Washington University School of Medicine, Saint Louis, MO 63110-1093, USA
| | - Jerome S Pinkner
- Department of Molecular Microbiology, Washington University School of Medicine, Saint Louis, MO 63110-1093, USA.,Center for Women's Infectious Disease Research, Washington University School of Medicine, Saint Louis, MO 63110-1093, USA
| | - Michael G Caparon
- Department of Molecular Microbiology, Washington University School of Medicine, Saint Louis, MO 63110-1093, USA.,Center for Women's Infectious Disease Research, Washington University School of Medicine, Saint Louis, MO 63110-1093, USA
| | - Scott J Hultgren
- Department of Molecular Microbiology, Washington University School of Medicine, Saint Louis, MO 63110-1093, USA.,Center for Women's Infectious Disease Research, Washington University School of Medicine, Saint Louis, MO 63110-1093, USA
| | - Alana Desai
- Division of Urologic Surgery, Washington University School of Medicine, Saint Louis, MO 63110-1093, USA
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Garnizov TM. Asymptomatic bacteriuria in pregnancy from the perspective of public health and maternal health care: review and case report. BIOTECHNOL BIOTEC EQ 2015. [DOI: 10.1080/13102818.2015.1114429] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Affiliation(s)
- Teodor Markov Garnizov
- Department of Obstetrics and Gynecology, Postpartum Unit, Medical University of Sofia, University Obstetrics and Gynecology Hospital “Maichin Dom”, Sofia, Bulgaria
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Medved V. Safety of Canephron® N for the treatment of urinary tract infections in the first trimester of pregnancy. CLINICAL PHYTOSCIENCE 2015. [DOI: 10.1186/s40816-015-0012-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Amiri M, Lavasani Z, Norouzirad R, Najibpour R, Mohamadpour M, Nikpoor AR, Raeisi M, Zare Marzouni H. Prevalence of Urinary Tract Infection Among Pregnant Women and its Complications in Their Newborns During the Birth in the Hospitals of Dezful City, Iran, 2012 - 2013. IRANIAN RED CRESCENT MEDICAL JOURNAL 2015; 17:e26946. [PMID: 26430526 PMCID: PMC4585427 DOI: 10.5812/ircmj.26946] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/15/2015] [Accepted: 06/06/2015] [Indexed: 11/16/2022]
Abstract
BACKGROUND Urinary tract infection (UTI) is the most common disorder caused by bacterial agents in pregnancy, which can lead to important complications in newborn of such mothers in case of inappropriate diagnosis and treatment. OBJECTIVES The purpose of this study was to study the prevalence of UTI among pregnant women and its complications in their newborns during the birth in the hospitals of Dezful City, Iran, during 2012 - 2013. PATIENTS AND METHODS In this cross-sectional retrospective study, 1132 women admitted to Dr. Ganjavian and Ayatollah Nabavi Hospitals in Dezful City, Iran, during 2012 - 2013 were randomly allocated into the case and control groups and were matched based on their age, numbers of pregnancy, sex and diseases of their children. UTI was the only difference between the two groups. RESULTS Twenty-two thousand six hundred deliveries occurred within the course of this study. Due to UTI, 5% of deliveries led to hospitalization of mothers (1132 patients).Weight and height of newborn infants of mothers afflicted with UTI (P < 0.001) were significantly lower compared to newborns of healthy women (P < 0.001). There was a significant association between the two groups of pregnant women with UTI in terms of type of delivery (normal and caesarean section) (P < 0.008). CONCLUSIONS The lower incidence of UTI in pregnant women compared to other areas of Iran represents the role of climate and weather in the prevalence of UTI. In addition, the increased number of low-birth-weight infants had a remarkable correlation with UTI, which can influence the health of the next generation.
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Affiliation(s)
- Marziyeh Amiri
- Student Research Committee, Dezful University of Medical Sciences, Dezful, IR Iran
| | - Zohreh Lavasani
- Department of Obstetrics and Gynecology, Islamic Azad University, Tehran Medical Sciences Branch, Tehran, IR Iran
| | - Reza Norouzirad
- Department of Biochemistry, Dezful University of Medical Sciences, Dezful, IR Iran
| | - Reza Najibpour
- Student Research Committee, Tehran Medical Sciences Branch, Islamic Azad University, Tehran, IR Iran
| | - Masoomeh Mohamadpour
- Department of Anatomy, Histomorphometry and Stereology Research Centre, Shiraz University of Medical Sciences, Shiraz, IR Iran
| | - Amin Reza Nikpoor
- Department of Immunology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, IR Iran
| | - Mohammad Raeisi
- Department of Immunology, Shiraz University of Medical Sciences, Shiraz, IR Iran
| | - Hadi Zare Marzouni
- Student Research Committee, Dezful University of Medical Sciences, Dezful, IR Iran
- Student Research Committee, Tehran Medical Sciences Branch, Islamic Azad University, Tehran, IR Iran
- Corresponding Author: Hadi Zare Marzouni, Student Research Committee, Tehran Medical Sciences Branch, Islamic Azad University, Tehran, IR Iran. P. O. Box 4718183583, Tel: +98-9118612103, Fax: +98-6416269730, E-mail:
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Abstract
BACKGROUND Asymptomatic bacteriuria occurs in 2% to 10% of pregnancies and, if not treated, up to 30% of mothers will develop acute pyelonephritis. Asymptomatic bacteriuria has been associated with low birthweight and preterm birth. OBJECTIVES To assess the effect of antibiotic treatment for asymptomatic bacteriuria on the development of pyelonephritis and the risk of low birthweight and preterm birth. SEARCH METHODS We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (19 March 2015) and reference lists of retrieved studies. SELECTION CRITERIA Randomized trials comparing antibiotic treatment with placebo or no treatment in pregnant women with asymptomatic bacteriuria found on antenatal screening. DATA COLLECTION AND ANALYSIS Two review authors independently assessed trials for inclusion and risk of bias, extracted data and checked them for accuracy. MAIN RESULTS Fourteen studies, involving almost 2000 women, were included. Antibiotic treatment compared with placebo or no treatment reduced the incidence of pyelonephritis (average risk ratio (RR) 0.23, 95% confidence interval (CI) 0.13 to 0.41; 11 studies, 1932 women; very low quality evidence). Antibiotic treatment was also associated with a reduction in the incidence of low birthweight babies (average RR 0.64, 95% CI 0.45 to 0.93; six studies, 1437 babies; low quality evidence) and preterm birth (RR 0.27, 95% CI 0.11 to 0.62; two studies, 242 women; low quality evidence). A reduction in persistent bacteriuria at the time of delivery was seen (average RR 0.30, 95% CI 0.18 to 0.53; four studies; 596 women). There were very limited data on which to estimate the effect of antibiotics on other infant outcomes and maternal adverse effects were rarely described.Overall, all 14 studies were assessed as being at high or unclear risk of bias. While many studies lacked an adequate description of methods and the risk of bias could only be assessed as unclear, in almost all studies there was at least one domain where the risk of bias was judged as high. The three primary outcomes were assessed with GRADE software and given a quality rating. Evidence for pyelonephritis, preterm birth and birthweight less than 2500 g was assessed as of low or very low quality. AUTHORS' CONCLUSIONS While antibiotic treatment is effective in reducing the risk of pyelonephritis in pregnancy, the estimate of the effect is very uncertain because of the very low quality of the evidence. The reduction in low birthweight and preterm birth with antibiotic treatment is consistent with theories about the role of infection in adverse pregnancy outcomes, but this association should be interpreted with caution given the very poor quality of the included studies.
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Affiliation(s)
- Fiona M Smaill
- Department of Pathology and Molecular Medicine, Faculty of Health Sciences, McMaster University, 1200 Main Street West, Room 2N29, Hamilton, ON, Canada, L8N 3Z5
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Kazemier BM, Koningstein FN, Schneeberger C, Ott A, Bossuyt PM, de Miranda E, Vogelvang TE, Verhoeven CJM, Langenveld J, Woiski M, Oudijk MA, van der Ven JEM, Vlegels MTW, Kuiper PN, Feiertag N, Pajkrt E, de Groot CJM, Mol BWJ, Geerlings SE. Maternal and neonatal consequences of treated and untreated asymptomatic bacteriuria in pregnancy: a prospective cohort study with an embedded randomised controlled trial. THE LANCET. INFECTIOUS DISEASES 2015; 15:1324-33. [PMID: 26255208 DOI: 10.1016/s1473-3099(15)00070-5] [Citation(s) in RCA: 102] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 03/27/2015] [Accepted: 05/19/2015] [Indexed: 11/19/2022]
Abstract
BACKGROUND Existing approaches for the screening and treatment of asymptomatic bacteriuria in pregnancy are based on trials that were done more than 30 years ago. In this study, we reassessed the consequences of treated and untreated asymptomatic bacteriuria in pregnancy. METHODS In this multicentre prospective cohort study with an embedded randomised controlled trial, we screened women (aged ≥18 years) at eight hospitals and five ultrasound centres in the Netherlands with a singleton pregnancy between 16 and 22 weeks' gestation for asymptomatic bacteriuria. Screening was done with a single dipslide and two culture media. Dipslides were judged positive when the colony concentration was at least 1×10(5) colony-forming units (CFU) per mL of a single microorganism or when two different colony types were present but one had a concentration of at least 1×10(5) CFU per mL. Asymptomatic bacteriuria-positive women were eligible to participate in the randomised controlled trial comparing nitrofurantoin with placebo treatment. In this trial, participants were randomly assigned 1:1 to receive either nitrofurantoin 100 mg or identical placebo tablets, and were instructed to self-administer these tablets twice daily for 5 consecutive days. Randomisation was done by a web-based application with a computer-generated list with random block sizes of two, four, or six participants rendered by an independent data manager. 1 week after the end of treatment, they provided us with a follow-up dipslide. Women, treating physicians, and researchers all remained unaware of the bacteriuria status and treatment allocation. Women who refused to participate in the randomised controlled trial did not receive any antibiotics, but their outcomes were collected for analysis in the cohort study. We compared untreated and placebo-treated asymptomatic bacteriuria-positive women with asymptomatic bacteriuria-negative women and nitrofurantoin-treated asymptomatic bacteriuria-positive women. The primary endpoint was a composite of pyelonephritis with or without preterm birth at less than 34 weeks, analysed by intention to treat at 6 weeks post-partum. This trial is registered with the Dutch Trial Registry, number NTR3068. FINDINGS Between Oct 11, 2011, and June 10, 2013, we enrolled 5621 women into our screening cohort, of whom 5132 were eligible for screening. After exclusions for contaminated dipslides and patients lost to follow-up, in our final cohort of 4283 women, 248 were asymptomatic bacteriuria positive, of whom 40 were randomly assigned to nitrofurantoin and 45 to placebo for the randomised controlled trial, whereas the other 163 asymptomatic bacteriuria-positive women were followed without treatment. The proportion of women with pyelonephritis, preterm birth, or both did not differ between untreated or placebo-treated asymptomatic bacteriuria-positive women and asymptomatic bacteriuria-negative women (6 [2·9%] of 208 vs 77 [1·9%] of 4035; adjusted odds ratio [OR] 1·5, 95% CI 0·6-3·5) nor between asymptomatic bacteriuria-positive women treated with nitrofurantoin versus those who were untreated or received placebo (1 [2·5%] of 40 vs 6 [2·9%] of 208; risk difference -0·4, 95% CI -3·6 to 9·4). Untreated or placebo-treated asymptomatic bacteriuria-positive women developed pyelonephritis in five [2·4%] of 208 cases, compared with 24 [0·6%] of 4035 asymptomatic bacteriuria-negative women (adjusted OR 3·9, 95% CI 1·4-11·4). INTERPRETATION In women with an uncomplicated singleton pregnancy, asymptomatic bacteriuria is not associated with preterm birth. Asymptomatic bacteriuria showed a significant association with pyelonephritis, but the absolute risk of pyelonephritis in untreated asymptomatic bacteriuria is low. These findings question a routine screen-treat-policy for asymptomatic bacteriuria in pregnancy. FUNDING ZonMw (the Netherlands Organisation for Health Research and Development).
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Affiliation(s)
- Brenda M Kazemier
- Department of Obstetrics and Gynecology, Academic Medical Centre, Amsterdam, Netherlands.
| | - Fiona N Koningstein
- Department of Obstetrics and Gynecology, Academic Medical Centre, Amsterdam, Netherlands
| | - Caroline Schneeberger
- Department of Infectious Diseases, Centre for Infection and Immunity Amsterdam, Academic Medical Centre, Amsterdam, Netherlands
| | - Alewijn Ott
- Certe Laboratory for Infectious Diseases, Groningen, Netherlands
| | - Patrick M Bossuyt
- Department of Clinical Epidemiology, University of Amsterdam, Amsterdam, Netherlands
| | - Esteriek de Miranda
- Department of Obstetrics and Gynecology, Academic Medical Centre, Amsterdam, Netherlands
| | - Tatjana E Vogelvang
- Department of Obstetrics and Gynecology, Diakonessenhuis Utrecht, Utrecht, Netherlands
| | - Corine J M Verhoeven
- Department of Midwifery Science, AVAG/EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, Netherlands
| | - Josje Langenveld
- Department of Obstetrics and Gynecology, Atrium Medical Centre, Heerlen, Netherlands
| | - Mallory Woiski
- Department of Obstetrics and Gynecology, Radboud University Medical Center, Nijmegen, Netherlands
| | - Martijn A Oudijk
- Department of Obstetrics and Gynecology, University Medical Center Utrecht, Utrecht, Netherlands
| | | | | | | | | | - Eva Pajkrt
- Department of Obstetrics and Gynecology, Academic Medical Centre, Amsterdam, Netherlands
| | | | - Ben W J Mol
- The Robinson Research Institute, School of Pediatrics and Reproductive Health, University of Adelaide, Adelaide, Australia
| | - Suzanne E Geerlings
- Department of Infectious Diseases, Centre for Infection and Immunity Amsterdam, Academic Medical Centre, Amsterdam, Netherlands
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Matuszkiewicz-Rowińska J, Małyszko J, Wieliczko M. Urinary tract infections in pregnancy: old and new unresolved diagnostic and therapeutic problems. Arch Med Sci 2015; 11:67-77. [PMID: 25861291 PMCID: PMC4379362 DOI: 10.5114/aoms.2013.39202] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Revised: 07/18/2013] [Accepted: 09/23/2013] [Indexed: 01/04/2023] Open
Abstract
Urinary tract infections (UTIs) are common in pregnant women and pose a great therapeutic challenge, since the risk of serious complications in both the mother and her child is high. Pregnancy is a state associated with physiological, structural and functional urinary tract changes which promote ascending infections from the urethra. Unlike the general population, all pregnant women should be screened for bacteriuria with urine culture, and asymptomatic bacteriuria must be treated in every case that is diagnosed, as it is an important risk factor for pyelonephritis in this population. The antibiotic chosen should have a good maternal and fetal safety profile. In this paper, current principles of diagnosis and management of UTI in pregnancy are reviewed, and the main problems and controversies are identified and discussed.
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Affiliation(s)
| | - Jolanta Małyszko
- Department of Nephrology and Transplantation, Medical University of Bialystok, Bialystok, Poland
| | - Monika Wieliczko
- Chair and Clinic of Nephrology, Dialysis and Internal Diseases, Medical University of Warsaw, Warsaw, Poland
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Sultan A, Rizvi M, Khan F, Sami H, Shukla I, Khan HM. Increasing antimicrobial resistance among uropathogens: Is fosfomycin the answer? Urol Ann 2015; 7:26-30. [PMID: 25657539 PMCID: PMC4310112 DOI: 10.4103/0974-7796.148585] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Accepted: 04/10/2014] [Indexed: 11/21/2022] Open
Abstract
Introduction: Urinary tract infection (UTI) is one of the most common infectious diseases in clinical practice. The choice of antibiotics for the treatment of UTI is limited by the rising rates of antibiotic resistance. There is an urgent need to discover new effective treatment solutions. Fosfomycin may be an interesting alternative to the currently used treatments of UTIs. Materials and Methods: The study was conducted over 6 months period (January to June 2013) in Department of Microbiology, JNMCH, AMU, Aligarh. A total of 1840 urine samples were submitted. Culture and sensitivity was done as per standard microbiological procedures. Methicillin-resistant Staphylococcus aureus (MRSA), high-level aminoglycoside resistance (HLAR), extended spectrum beta-lactamases (ESBL), AmpC and metallo-beta-lactamases (MBL) production was detected. Results: Culture was positive in 504 (27.4%) cases. Gram-negative etiology was identified in 390 (73%) cases. ESBL production was detected in 154 (37.1%) while 82 (21.6%) were Amp C. No, MBL was detected. Among Gram-positive bacteria, 68 (51.5%) were MRSA, while 4 (13.3%) were vancomycin resistant enterococci (VRE). HLAR was seen in 53.3% of enterococci. Fosfomycin was effective in 100% of MRSA, VRE, ESBL, HLAR, and overall, susceptibility to fosfomycin in AmpC producers was extremely high (99%). Norfloxacin and cotrimoxazole were not proved effective as only three isolates were sensitive to norfloxacin, while all Gram-negative isolates were resistant to cotrimoxazole. Pseudomonas species showed 65% and 75% susceptibility to colistin and polymixin B, respectively. Conclusion: Fosfomycin has emerged as a promising option, especially in cases involving multi-drug-resistant pathogens in which previous antibiotics have failed to cure the infection.
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Affiliation(s)
- Asfia Sultan
- Department of Microbiology, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Meher Rizvi
- Department of Microbiology, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Fatima Khan
- Department of Microbiology, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Hiba Sami
- Department of Microbiology, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Indu Shukla
- Department of Microbiology, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Haris M Khan
- Department of Microbiology, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
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Sibi G, Kumari P, Kabungulundabungi N. Antibiotic sensitivity pattern from pregnant women with urinary tract infection in Bangalore, India. ASIAN PAC J TROP MED 2014; 7S1:S116-20. [PMID: 25312104 DOI: 10.1016/s1995-7645(14)60216-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 09/10/2014] [Accepted: 09/15/2014] [Indexed: 10/24/2022] Open
Abstract
OBJECTIVE To determine the antibacterial profile of pregnant women with urinaty tract infections and analyze the antibiotic sensitivity pattern for the effective treatment. METHODS A total of 395 urine samples from pregnant women with different gestational age were processed for the isolation of uropathogens and tested against eight groups of antibiotics namely penicillins, cephalosporins, fluoroquinolones, aminoglycosides, macrolides, lincosamides, glycopeptides and sulfonamides. RESULTS A positive culture percentage of 46.6% was obtained with the highest urinary tract infection in third trimester gestational age. Among the uropathogens isolated, 85.6% were Gram negative and 14.4% were Gram positive with Escherichia coli as the predominant bacteria (43.9%) followed by Klebsiella oxytoca (19.4%) and Klebsiella pneumoniae (13.3%). Antibiotic sensitivity assay revealed that amikacin had the highest overall sensitivity (n=136; 76.7%) and the subsequent highest sensitivity was observed with ciprofloxacin (n=132; 73.3%), clindamycin (n=124; 68.9%), cefotaxime (n=117; 65%) and nalidixic acid (n=115; 63.9%). CONCLUSIONS The findings revealed that uropathogens were more resistant to penicillins, macrolides and glycopeptides which restrict their use in treating urinaty tract infections during pregnancy. In conclusion, common causative bacteria and their antibiotic sensitivity pattern are to be determined along with their safety to mother and fetus for the effective treatment of urinary tract infections during pregnancy.
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Affiliation(s)
- G Sibi
- Department of Biotechnology, Indian Academy Degree College, Centre for Research and Post Graduate Studies, Bangalore, India.
| | - Pinki Kumari
- Department of Biotechnology, Indian Academy Degree College, Centre for Research and Post Graduate Studies, Bangalore, India
| | - Neema Kabungulundabungi
- Department of Biotechnology, Indian Academy Degree College, Centre for Research and Post Graduate Studies, Bangalore, India
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Rana T, Hasan RJ, Nowicki S, Venkatarajan MS, Singh R, Urvil PT, Popov V, Braun WA, Popik W, Goodwin JS, Nowicki BJ. Complement protective epitopes and CD55-microtubule complexes facilitate the invasion and intracellular persistence of uropathogenic Escherichia coli. J Infect Dis 2013; 209:1066-76. [PMID: 24259524 DOI: 10.1093/infdis/jit619] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Escherichia coli-bearing Dr-adhesins (Dr+ E. coli) cause chronic pyelonephritis in pregnant women and animal models. This chronic renal infection correlates with the capacity of bacteria to invade epithelial cells expressing CD55. The mechanism of infection remains unknown. METHODS CD55 amino acids in the vicinity of binding pocket-Ser155 for Dr-adhesin were mutated to alanine and subjected to temporal gentamicin-invasion/gentamicin-survival assay in Chinese hamster ovary cells. CD55/microtubule (MT) responses were studied using confocal/electron microscopy, and 3-dimensional structure analysis. RESULTS Mutant analysis revealed that complement-protective CD55-Ser165 and CD55-Phe154 epitopes control E. coli invasion by coregulating CD55-MT complex expression. Single-point CD55 mutations changed E. coli to either a minimally invasive (Ser165Ala) or a hypervirulent pathogen (Phe154Ala). Thus, single amino acid modifications with no impact on CD55 structure and bacterial attachment can have a profound impact on E. coli virulence. While CD55-Ser165Ala decreased E. coli invasion and led to dormant intracellular persistence, intracellular E. coli in CD55-Phe154Ala developed elongated forms (multiplying within vacuoles), upregulated CD55-MT complexes, acquired CD55 coat, and escaped phagolysosomal fusion. CONCLUSIONS E. coli target complement-protective CD55 epitopes for invasion and exploit CD55-MT complexes to escape phagolysosomal fusion, leading to a nondestructive parasitism that allows bacteria to persist intracellularly.
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Affiliation(s)
- Tanu Rana
- Department of Microbiology and Immunology
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Al-Badr A, Al-Shaikh G. Recurrent Urinary Tract Infections Management in Women: A review. Sultan Qaboos Univ Med J 2013; 13:359-67. [PMID: 23984019 PMCID: PMC3749018 DOI: 10.12816/0003256] [Citation(s) in RCA: 116] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2013] [Revised: 02/23/2013] [Accepted: 03/27/2013] [Indexed: 11/27/2022] Open
Abstract
Urinary tract infections (UTIs) are one of the most frequent clinical bacterial infections in women, accounting for nearly 25% of all infections. Around 50-60% of women will develop UTIs in their lifetimes. Escherichia coli is the organism that causes UTIs in most patients. Recurrent UTIs (RUTI) are mainly caused by reinfection by the same pathogen. Having frequent sexual intercourse is one of the greatest risk factors for RUTIs. In a subgroup of individuals with coexisting morbid conditions, complicated RUTIs can lead to upper tract infections or urosepsis. Although the initial treatment is antimicrobial therapy, use of different prophylactic regimens and alternative strategies are available to reduce exposure to antibiotics.
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Affiliation(s)
| | - Ghadeer Al-Shaikh
- King Saud University, King Khalid University Hospital, Riyadh, Saudi Arabia
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Prevalence of asymptomatic bacteriuria and sterile pyuria in pregnant women attending antenatal clinic in a tertiary care center in Karnataka: A pilot study. CLINICAL EPIDEMIOLOGY AND GLOBAL HEALTH 2013. [DOI: 10.1016/j.cegh.2012.11.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Sabharwal ER. Antibiotic susceptibility patterns of uropathogens in obstetric patients. NORTH AMERICAN JOURNAL OF MEDICAL SCIENCES 2012; 4:316-9. [PMID: 22866269 PMCID: PMC3409656 DOI: 10.4103/1947-2714.98591] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Urinary tract infections (UTI) are the most commonly encountered infections in obstetric patients. Although a variety of etiology is involved, Escherichia coli and other coliforms account for a large majority of these naturally acquired infections. The estimation of local etiology and susceptibility profile could support the most effective empirical treatment. AIM The current study was undertaken to find the spectrum of micro-organisms responsible for causing UTI in obstetric patients and to find out the most appropriate antibiotic. MATERIALS AND METHODS Consecutive patients in different stages of pregnancy with or without symptoms of UTI attending the antenatal clinic during November 2011 to March 2012 were screened for significant bacteriuria. The bacterial uropathogens isolated were then subjected to antimicrobial susceptibility testing and screened for ESBL production and methicillin resistance. RESULTS During the 5-month study period, out of the 250 samples screened, a total of 60 (24%) samples of urine from pregnant females, in different stages of pregnancy were found to be positive on culture. The Enterobacteriaceae accounted for nearly two-thirds of the isolates and E. coli alone accounted for 63% of the urinary isolates followed by Klebsiella pneumonia 8%. Among the Gram-positive cocci, coagulase-negative Staphylococcus (15%) were more frequently isolated than Staphylococcus aureus (8.3%). A significantly high resistance was noted to the beta-lactam group of antimicrobials, fluoroquinolones and cotrimoxazole, both by the Gram-negative bacilli as well as Gram-positive cocci. Resistance was quite low against the aminoglycosides and nitrofurantoin and virtually absent against imipenem. CONCLUSION The susceptibility patterns seen in our study seem to suggest that it is absolutely necessary to obtain sensitivity reports before initiation of antibiotic therapy in cases of suspected UTI.
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Affiliation(s)
- Ekadashi R Sabharwal
- Department of Microbiology, Jhalawar Medical College, Jhalawar, Rajasthan, India
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