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Golińska E, Kozień Ł, Tomusiak-Plebanek A, Kędzierska J, Dorycka M, Lauterbach R, Pawlik D, Rzepecka-Węglarz B, Janiszewska M, Heczko PB, Wojkowska-Mach J, Strus M. Epidemiology of neonatal sepsis in two neonatal intensive care units in Krakow, Poland in 2016-2017 years. BMC Infect Dis 2023; 23:827. [PMID: 38001444 PMCID: PMC10675960 DOI: 10.1186/s12879-023-08836-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 11/21/2023] [Indexed: 11/26/2023] Open
Abstract
BACKGROUND Sepsis in low-birth-weight neonates remains one of the most significant causes of neonatal morbidity and mortality. Approximately 3 million newborns suffer from sepsis globally every year. The aim of this study was to compare demographic and clinical features, as well as etiology and antibiotic susceptibility, of the main pathogens related to neonatal sepsis in two neonatal intensive units during a two-year period. METHODS We observed early-onset (EO-BSI) and late-onset bloodstream infections (LO-BSI) cases in two high-reference neonatal intensive care units (NICU) over a 24-month period (2016-2017). Samples of patients' blood were tested for the presence of the microorganisms. All bacterial isolates were tested for susceptibility to antibiotics. RESULTS The majority of sepsis cases weighed above 1000 g and were born by cesarean section. About 10% of the EO-BSI group died. There were differences in the EO-BSI /LO-BSI ratio in the compared wards due to differences among the admitted children. The most common pathogens isolated from blood were coagulase-negative staphylococci (CoNS) were represented by two dominating species: S. epidermidis and S. haemolyticus, followed by Klebsiella spp. strains and E.coli, which were mostly found in EO-BSI cases. No single S. agalactiae (GBS) strain was isolated. The majority of CoNS strains were resistant to methicillin, half were resistant to aminoglycosides, and one-third were resistant to macrolides and lincosamides. Half of the Gram-negative rods were resistant to beta-lactams. CONCLUSIONS The epidemiology of sepsis in two observed NICUs is comparable to data obtained from other studies with a predominance of methicillin-resistant CoNS in LO-BSI and beta-lactam resistant E. coli in EO-BSI. It is of importance that the campaign for controlling GBS carriage in pregnant women in Poland resulted in the disappearance of GBS as a cause of sepsis. Unfortunately, there are no such measures to control E.coli related sepsis.
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Affiliation(s)
- Edyta Golińska
- Chair of Microbiology, Jagiellonian University Medical College, Czysta 18 Street, Cracow, 31-121, Poland.
| | - Ł Kozień
- Chair of Microbiology, Jagiellonian University Medical College, Czysta 18 Street, Cracow, 31-121, Poland
| | - A Tomusiak-Plebanek
- Chair of Microbiology, Jagiellonian University Medical College, Czysta 18 Street, Cracow, 31-121, Poland
| | - J Kędzierska
- Department of Microbiology, University Hospital, Cracow, Poland
| | - M Dorycka
- Microbiological Laboratory, Diagnostics Inc. Krakow Branch, Cracow, Poland
| | - R Lauterbach
- Department of Neonatology, Medical College, Jagiellonian University, Cracow, Poland
| | - D Pawlik
- Department of Neonatology, Medical College, Jagiellonian University, Cracow, Poland
| | - B Rzepecka-Węglarz
- Department of Neonatal Intensive Care, "UJASTEK" Medical Centre, Cracow, Poland
| | - M Janiszewska
- Department of Informatics and Medical Statistics with E-learning Laboratory, Medical University, Lublin, Poland
| | - P B Heczko
- Chair of Microbiology, Jagiellonian University Medical College, Czysta 18 Street, Cracow, 31-121, Poland
| | - J Wojkowska-Mach
- Chair of Microbiology, Jagiellonian University Medical College, Czysta 18 Street, Cracow, 31-121, Poland
| | - M Strus
- Chair of Microbiology, Jagiellonian University Medical College, Czysta 18 Street, Cracow, 31-121, Poland
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Pilarczyk-Zurek M, Majka G, Skowron B, Baranowska A, Piwowar M, Strus M. The Multi-Component Causes of Late Neonatal Sepsis-Can We Regulate Them? Nutrients 2022; 14:nu14020243. [PMID: 35057424 PMCID: PMC8780644 DOI: 10.3390/nu14020243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/30/2021] [Accepted: 01/04/2022] [Indexed: 12/10/2022] Open
Abstract
Elucidating the mechanisms of bacterial translocation is crucial for the prevention and treatment of neonatal sepsis. In the present study, we aimed to evaluate the potential of lactoferrin to inhibit the development of late-onset blood infection in neonates. Our investigation evaluates the role of key stress factors leading to the translocation of intestinal bacteria into the bloodstream and, consequently, the development of life-threatening sepsis. Three stress factors, namely weaning, intraperitoneal administration of Gram-positive cocci and oral intake of Gram-negative rods, were found to act synergistically. We developed a novel model of rat pups sepsis induced by bacterial translocation and observed the inhibition of this process by supplementation of various forms of lactoferrin: iron-depleted (apolactoferrin), iron-saturated (hololactoferrin) and manganese-saturated lactoferrin. Additionally, lactoferrin saturated with manganese significantly increases the Lactobacillus bacterial population, which contributes to the fortification of the intestinal barrier and inhibits the translocation phenomenon. The acquired knowledge can be used to limit the development of sepsis in newborns in hospital neonatal intensive care units.
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Affiliation(s)
- Magdalena Pilarczyk-Zurek
- Department of Microbiology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Cracow, Poland;
- Chair of Microbiology, Faculty of Medicine, Jagiellonian University Medical College, 31-121 Cracow, Poland;
| | - Grzegorz Majka
- Chair of Microbiology, Faculty of Medicine, Jagiellonian University Medical College, 31-121 Cracow, Poland;
- Chair of Immunology, Faculty of Medicine, Jagiellonian University Medical College, 31-121 Cracow, Poland
| | - Beata Skowron
- Medical Department Diagnostyka S.A., 31-864 Cracow, Poland;
| | - Agnieszka Baranowska
- Chair of Pathophysiology, Faculty of Medicine, Jagiellonian University Medical College, 31-121 Cracow, Poland;
| | - Monika Piwowar
- Department of Bioinformatics and Telemedicine, Faculty of Medicine, Jagiellonian University Medical College, 30-688 Cracow, Poland;
| | - Magdalena Strus
- Chair of Microbiology, Faculty of Medicine, Jagiellonian University Medical College, 31-121 Cracow, Poland;
- Correspondence: ; Tel.: +48-12-633-25-67; Fax: +48-12-423-39-24
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Chorioamnionitis and Risk for Maternal and Neonatal Sepsis: A Systematic Review and Meta-analysis. Obstet Gynecol 2021; 137:1007-1022. [PMID: 33957655 DOI: 10.1097/aog.0000000000004377] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 02/04/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVE To estimate the risk of maternal and neonatal sepsis associated with chorioamnionitis. DATA SOURCES PubMed, BIOSIS, and ClinicalTrials.gov databases were systematically searched for full-text articles in English from inception until May 11, 2020. METHODS OF STUDY SELECTION We screened 1,251 studies. Randomized controlled trials, case-control, or cohort studies quantifying a relationship between chorioamnionitis and sepsis in mothers (postpartum) or neonates born at greater than 22 weeks of gestation were eligible. Studies were grouped for meta-analyses according to exposures of histologic or clinical chorioamnionitis and outcomes of maternal or neonatal sepsis. TABULATION, INTEGRATION, AND RESULTS One hundred three studies were included, and 55 met criteria for meta-analysis (39 studies of preterm neonates, 10 studies of general populations of preterm and term neonates, and six studies of late preterm and term neonates). Study details and quantitative data were abstracted. Random-effects models were used to generate pooled odds ratios (ORs); most studies only reported unadjusted results. Histologic chorioamnionitis was associated with confirmed and any early-onset neonatal sepsis (unadjusted pooled ORs 4.42 [95% CI 2.68-7.29] and 5.88 [95% CI 3.68-9.41], respectively). Clinical chorioamnionitis was also associated with confirmed and any early-onset neonatal sepsis (unadjusted pooled ORs 6.82 [95% CI 4.93-9.45] and 3.90 [95% CI 2.74-5.55], respectively). Additionally, histologic and clinical chorioamnionitis were each associated with higher odds of late-onset sepsis in preterm neonates. Confirmed sepsis incidence was 7% (early-onset) and 22% (late-onset) for histologic and 6% (early-onset) and 26% (late-onset) for clinical chorioamnionitis-exposed neonates. Three studies evaluated chorioamnionitis and maternal sepsis and were inconclusive. CONCLUSION Both histologic and clinical chorioamnionitis were associated with early- and late-onset sepsis in neonates. Overall, our findings support current guidelines for preventative neonatal care. There was insufficient evidence to determine the association between chorioamnionitis and maternal sepsis. SYSTEMATIC REVIEW REGISTRATION PROSPERO, CRD42020156812.
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Wójkowska-Mach J, Pomorska-Wesołowska M, Romanik M, Romaniszyn D. Prevalence and Antimicrobial Susceptibility Profiles of Microorganisms Associated with Lower Reproductive Tract Infections in Women from Southern Poland-Retrospective Laboratory-Based Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18010335. [PMID: 33466345 PMCID: PMC7794702 DOI: 10.3390/ijerph18010335] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 12/30/2020] [Accepted: 12/31/2020] [Indexed: 12/11/2022]
Abstract
Objective: Female infections affecting the genital tract include sexually transmitted diseases, endogenous infections such as vulvovaginal candidiasis, bacterial vaginosis (BV) or aerobic vaginitis (AV) and healthcare-associated infections. The aim of the study was to analyze the etiological factors of the vaginal dysbacteriosis, and the antimicrobial susceptibility of the dominant bacterial and fungal infections in different age groups of outpatient women from the Silesian Region. Materials and methods: A retrospective laboratory-based multi-center study encompassed 4994 women of different ages in Silesian Voivodeship, in the south of Poland; patients who had vaginal swabs collected as per physicians’ orders during the period from 1 January 2017 until 30 June 2018 were included in the study. The inclusion criteria were: non-hospitalized female, aged ≤80, with suspected vulvovaginal candidiasis or bacterial vaginosis and clinical sings of infections. Results: Gram-positive cocci were the ones most often isolated: Enterococcus faecalis (29.2%) and Streptoccoccus agalactiae (13.1%), followed by bacilli from the Enterobacteriaceae group, including Escherichia coli (26.3%). The presence of Streptococcus agalactiae was confirmed in 13.1%, slightly more often in the 45–80 age group, and Gardnerella vaginalis in 6.4%, most often in women aged 15–24. The prevalence of yeast-like infections was 24.3%, Candida albicans accounted for 78.3%, whereas among C. non-albicans spp.—C. glabrata dominated (14.9%) followed by C. parapsilosis (3.8%). The highest resistance was observed only in Streptococcus agalactiae as the MLSB mechanism (Macrolide-lincosamide-streptogramin B) was identified in 38.6% of strains. The prevalence of vulvovaginal candidiasis was 24.3%, the highest in women aged 15–44. Conclusions: Drug resistance in studied vulvovaginitis was associated only with Streptococcus agalactiae. A high proportion of yeast-like aetiology was found, probably associated with recurrent infections. In the analyzed cases only the Amsel criteria and culture methods were used for diagnosis without preparations and microbiological Nugent criteria.
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Affiliation(s)
- Jadwiga Wójkowska-Mach
- Department of Microbiology, Faculty of Medicine, Jagiellonian University Medical College, 31-008 Krakow, Poland; or
- Correspondence: or
| | - Monika Pomorska-Wesołowska
- Department of Microbiology, Analytical and Microbiological Laboratory of KORLAB NZOZ, 41-700 Ruda Śląska, Poland;
| | - Małgorzata Romanik
- Department of Medical Microbiology, Medical University of Silesia, 40-055 Katowice, Poland; or
| | - Dorota Romaniszyn
- Department of Microbiology, Faculty of Medicine, Jagiellonian University Medical College, 31-008 Krakow, Poland; or
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CLINICAL AND MICROBIOLOGICAL FEATURES OF EARLY-ONSET NEONATAL SEPSIS IN PRETERM INFANTS. EUREKA: HEALTH SCIENCES 2020. [DOI: 10.21303/2504-5679.2020.001284] [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
Early-onset neonatal sepsis (EONS) remains the leading cause of morbidity and mortality, especially among premature infants. Conducting high-quality epidemiological monitoring is an important condition for effective tactics treatment neonatal infections and improving the quality of medical care for this category of newborn.
The aim. Determination of the value of microbiological triggers in the blood in various clinical options for EONS in preterm infants.
Materials and methods. Clinical and microbiological data on 50 prematurely born newborns with EONS were selected. The analysis of the frequency of detected bacteremia, the distribution of pathogenic microorganisms and the clinical characteristics of neonatal sepsis.
Results. In the study, sources of infection were detected in 94 % of cases. Positive blood cultures were obtained in 17 (34 %) newborns with EONS. 61.5 % of all cases of bacteremia were caused by coagulase-negative staphylococcus (CoNS). Gram-negative pathogens were detected in 23.5 % of positive blood cultures, representatives of this group were Escherichia coli and Klebsiella pneumonia. The overall mortality rate from EONS was 30 %.
Conclusions. The incidence of sepsis confirmed by a positive blood culture was 34 %. The most common cause of EONS is CoNS, low incidence of group B Streptococcus sepsis has been established. The most frequent septicopymic sources of infection were the lungs, which is expressed in the high incidence (94 %) of X-ray pneumonia in the structure of the EONS.
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Oeser C, Pond M, Butcher P, Bedford Russell A, Henneke P, Laing K, Planche T, Heath PT, Harris K. PCR for the detection of pathogens in neonatal early onset sepsis. PLoS One 2020; 15:e0226817. [PMID: 31978082 PMCID: PMC6980546 DOI: 10.1371/journal.pone.0226817] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 12/05/2019] [Indexed: 11/21/2022] Open
Abstract
Background A large proportion of neonates are treated for presumed bacterial sepsis with broad spectrum antibiotics even though their blood cultures subsequently show no growth. This study aimed to investigate PCR-based methods to identify pathogens not detected by conventional culture. Methods Whole blood samples of 208 neonates with suspected early onset sepsis were tested using a panel of multiplexed bacterial PCRs targeting Streptococcus pneumoniae, Streptococcus agalactiae (GBS), Staphylococcus aureus, Streptococcus pyogenes (GAS), Enterobacteriaceae, Enterococcus faecalis, Enterococcus faecium, Ureaplasma parvum, Ureaplasma urealyticum, Mycoplasma hominis and Mycoplasma genitalium, a 16S rRNA gene broad-range PCR and a multiplexed PCR for Candida spp. Results Two-hundred and eight samples were processed. In five of those samples, organisms were detected by conventional culture; all of those were also identified by PCR. PCR detected bacteria in 91 (45%) of the 203 samples that did not show bacterial growth in culture. S. aureus, Enterobacteriaceae and S. pneumoniae were the most frequently detected pathogens. A higher bacterial load detected by PCR was correlated positively with the number of clinical signs at presentation. Conclusion Real-time PCR has the potential to be a valuable additional tool for the diagnosis of neonatal sepsis.
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Affiliation(s)
- Clarissa Oeser
- Paediatric Infectious Diseases, Institute of Infection and Immunity, St George’s, University of London, London, United Kingdom
- * E-mail:
| | - Marcus Pond
- Molecular Microbiology, Institute of Infection and Immunity, St George’s, University of London, London, United Kingdom
| | - Philip Butcher
- Molecular Microbiology, Institute of Infection and Immunity, St George’s, University of London, London, United Kingdom
| | | | - Philipp Henneke
- Pediatric Infectious Disease and Rheumatology, University Medical Center Freiburg, Freiburg, Germany
| | - Ken Laing
- Molecular Microbiology, Institute of Infection and Immunity, St George’s, University of London, London, United Kingdom
| | - Timothy Planche
- Molecular Microbiology, Institute of Infection and Immunity, St George’s, University of London, London, United Kingdom
| | - Paul T. Heath
- Paediatric Infectious Diseases, Institute of Infection and Immunity, St George’s, University of London, London, United Kingdom
| | - Kathryn Harris
- Microbiology, Virology and Infection Control, Great Ormond Street Hospital NHS Foundation Trust, London, United Kingdom
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Neonate Bloodstream Infections in Organization for Economic Cooperation and Development Countries: An Update on Epidemiology and Prevention. J Clin Med 2019; 8:jcm8101750. [PMID: 31640253 PMCID: PMC6832148 DOI: 10.3390/jcm8101750] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 10/07/2019] [Accepted: 10/18/2019] [Indexed: 02/06/2023] Open
Abstract
The term neonatal sepsis is used to describe a generalized bloodstream infection of bacterial, viral, or fungal origin which is associated with hemodynamic changes and other clinical symptoms and signs, however, there is no unified definition. There are no basic criteria regarding differentiation of early-onset sepsis (EOS) versus late-onset sepsis (LOS). Stratification used in studies on neonatal sepsis also rarely includes the general condition of the newborn according to unambiguous assessment at birth, which hampers the establishment of a clear, uniform epidemiological description of neonatal sepsis. We aim to review the published data about the epidemiology and microbiology of sepsis in Organization for Economic Cooperation and Development (OECD) countries. Data was also collected on sepsis prevention programs that can be implemented in neonatal units. The outcomes of interest were incidence or incidence density of EOS and LOS, microbiology of EOS and LOS, and data on the methodology of the research, in particular the criteria for inclusion and exclusion of newborns from the study. Pubmed, EMBASE, LILACS Embase, Scopus, and Google Scholar were used. For the preselection step, inclusion criteria included: "bloodstream infection" or "neonatal sepsis" (MesH), "very low birth weight", and "country" full-text studies, human, and English language. Exclusion criteria included: studies published in languages other than English and studies available only as an abstracts. For proper selection, inclusion criteria included: information about epidemiology or microbiology bloodstream infection (BSI), study population and case definitions, exclusion criteria, narrative reviews, commentaries, case studies, pilot studies, study protocols, pediatric studies, and only clinical data (without microbiology or epidemiology) or studies with only one etiological factor analysis. The data review indicated the lack of an unequivocal, unified definition and no unambiguous basic criteria with regard to differentiation of EOS versus LOS. Among infants <1500 g, studies reported an EOS rate from 7% to 2%. For studies using other definitions (mostly all inborn babies), the rate of EOS ranged from 1% to 3%. The LOS incidences were much more varied among countries; the highest rates were in the multicenter studies focused on very low birth weight (VLBW) infants. The main pathogens in EOS are GBS and Gram-negative bacteria in LOS. Our review data shows that LOS microbiology is very diverse and that Gram-positive cocci, especially staphylococci, predominate versus Gram-negative rods. Unfortunately, the lack of uniform, international prevention programs results in high newborn morbidity and insufficient postnatal prevention of late-onset infections.
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El-Amir MI, El-Feky MA, Abo Elwafa DA, Abd-Elmawgood EA. Rapid diagnosis of neonatal sepsis by PCR for detection of 16S rRNA gene, while blood culture and PCR results were similar in E.coli-predominant EOS cases. Infect Drug Resist 2019; 12:2703-2710. [PMID: 31564919 PMCID: PMC6724612 DOI: 10.2147/idr.s213958] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 08/09/2019] [Indexed: 12/16/2022] Open
Abstract
Purpose To determine the bacteriological pattern and antibiotic susceptibility of bacterial isolates causing neonatal sepsis in Qena University Hospitals and compare polymerase chain reaction (PCR) and blood culture results in a trial for rapid diagnosis. Patients and methods Blood samples from 75 clinically suspected cases of neonatal sepsis were subjected to identification of bacteria and determination of their antibiotic sensitivity through blood culture, and rapid detection of 16S rRNA and the uidA gene (to confirm the presence of E. coli) by PCR from extracted bacterial DNA. Results Most patients were preterm (64%) and low birth weight (LBW) (68%). In total, 42.7% presented with early onset sepsis (EOS). LBW was significantly associated with EOS (P-value=0.03). Although the blood culture and PCR results were similar in EOS, the PCR results were significantly higher than those of blood culture in detecting bacteria (85.3% vs 68%, respectively, P-value=0.001). Blood culture showed 100% specificity. The most common pathogen was E. coli (86.2%) in EOS and Staphylococcus spp. (45.5%) in late-onset sepsis (LOS) (P-value=0.001 and 0.02, respectively). The most effective antibiotics against Gram-negative bacteria were ofloxacin, ciprofloxacin, imipenem, and amikacin, while vancomycin, oxacillin, and imipenem were the most effective antibiotics against Gram-positive bacteria. Conclusion EOS was mainly caused by E. coli, while LOS was mainly caused by Staphylococcus spp. The 16S rRNA PCR showed higher sensitivity with rapid and accurate diagnosis. Blood culture is the most suitable method for antimicrobial sensitivity testing.
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Affiliation(s)
- Mostafa I El-Amir
- Department of Medical Microbiology and Immunology, Faculty of Medicine, South Valley University, Qena, Egypt
| | - Mohamed Ali El-Feky
- Department of Medical Microbiology and Immunology, Faculty of Medicine, South Valley University, Qena, Egypt.,Department of Medical Microbiology and Immunology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Doaa A Abo Elwafa
- Department of Medical Microbiology and Immunology, Faculty of Medicine, South Valley University, Qena, Egypt
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Qiu X, Li J, Yang X, Tang J, Shi J, Tong Y, Qu Y, Mu D. Is neutrophil CD11b a special marker for the early diagnosis of sepsis in neonates? A systematic review and meta-analysis. BMJ Open 2019; 9:e025222. [PMID: 31048432 PMCID: PMC6502033 DOI: 10.1136/bmjopen-2018-025222] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
OBJECTIVES Our study aimed to synthesise and analyse the early diagnostic value of neutrophil CD11b (nCD11b) for neonatal sepsis. DESIGN Systematic review and meta-analysis. METHODS Pubmed, Embase, the Cochrane Library and Web of Science Databases were searched up to June 2018. We used Stata software (V.14.0) to conduct the pooled sensitivity, specificity, positive likelihood ratio (PLR), negative likelihood ratio (NLR), diagnostic OR (DOR), pretest probability, post-test probability and summary receiver operating characteristic (SROC) curve for diagnostic efficiency of n CD11b. RESULTS Nine studies, accounting for 843 neonates, were included. The overall pooled sensitivity, specificity, PLR, NLR, DOR, post-test positive probability and post-test negative probability and the area under the SROC curve were 0.82 (95% CI 0.71 to 0.90), 0.93 (95% CI 0.62 to 0.99), 11.51 (95% CI 1.55 to 85.62), 0.19 (95% CI 0.10 to 0.36), 59.50 (95% CI 4.65 to 761.58), 74%, 5% and 0.90, which had accuracy in diagnosing neonatal sepsis. CONCLUSION The present evidence indicated that nCD11b is a promising biomarker for the early diagnosis of neonatal sepsis.
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Affiliation(s)
- Xia Qiu
- Department of Pediatrics, Sichuan University West China Second University Hospital, Chengdu, China
| | - Jinhui Li
- Department of Pediatrics, Sichuan University West China Second University Hospital, Chengdu, China
| | - Xiaoyan Yang
- Department of Pediatrics, Sichuan University West China Second University Hospital, Chengdu, China
| | - Jun Tang
- Department of Pediatrics, Sichuan University West China Second University Hospital, Chengdu, China
| | - Jing Shi
- Department of Pediatrics, Sichuan University West China Second University Hospital, Chengdu, China
| | - Yu Tong
- Department of Pediatrics, Sichuan University West China Second University Hospital, Chengdu, China
| | - Yi Qu
- Department of Pediatrics, Sichuan University West China Second University Hospital, Chengdu, China
| | - Dezhi Mu
- Department of Pediatrics, Sichuan University West China Second University Hospital, Chengdu, China
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Qiu X, Zhang L, Tong Y, Qu Y, Wang H, Mu D. Interleukin-6 for early diagnosis of neonatal sepsis with premature rupture of the membranes: A meta-analysis. Medicine (Baltimore) 2018; 97:e13146. [PMID: 30461611 PMCID: PMC6392693 DOI: 10.1097/md.0000000000013146] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Premature rupture of the membranes (PROM) is the principal risk factor for neonatal sepsis. Interleukin-6 (IL-6) has been investigated for early diagnosis of neonatal sepsis, but not for diagnosis of neonatal sepsis with PROM. The objective of this study is to investigate the early diagnostic value of IL-6 for neonatal sepsis with PROM. METHODS The literature was searched using PubMed, Embase, Cochrane Library, Web of Science, CNKI, Wan Fang, VIP, and CBM databases until March 2018. Each study was evaluated using Quality Assessment of Diagnostic Accuracy Studies tool-2. We used a bivariate diagnostic random-effects model. RESULTS The overall pooled sensitivity, specificity, positive likelihood rate, negative likelihood rate, diagnostic odds ratio, and area under the summary receiver operating characteristic curve were 0.85 (95% confidence interval [CI]: 0.81-0.91), 0.88 (95% CI: 0.86-0.91), 9.94 (95% CI: 4.27-23.15), 0.14 (95% CI: 0.06-0.32), 79.26 (95% CI: 23.42-268.26), and 0.9473, respectively, which showed high accuracy in diagnosing neonatal sepsis with PROM. The types of sepsis might be connected with the source of heterogeneity (P = .0351). CONCLUSION IL-6 is therefore a sensitive and specific diagnostic marker for the early diagnosis of neonatal sepsis with PROM.
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Affiliation(s)
- Xia Qiu
- Department of Pediatrics, West China Second University Hospital
| | - Li Zhang
- Department of Pediatrics, West China Second University Hospital
| | - Yu Tong
- Department of Pediatrics, West China Second University Hospital
- Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Sichuan University, Chengdu, China
| | - Yi Qu
- Department of Pediatrics, West China Second University Hospital
- Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Sichuan University, Chengdu, China
| | - Huiqing Wang
- Department of Pediatrics, West China Second University Hospital
- Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Sichuan University, Chengdu, China
| | - Dezhi Mu
- Department of Pediatrics, West China Second University Hospital
- Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Sichuan University, Chengdu, China
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Kopeć-Godlewska K, Wójkowska-Mach J. Infections following surgical patent ductus arteriosus ligation in very-low-birthweight neonates. J Hosp Infect 2017; 99:62-67. [PMID: 28757329 DOI: 10.1016/j.jhin.2017.07.029] [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: 06/27/2017] [Accepted: 07/24/2017] [Indexed: 10/19/2022]
Abstract
BACKGROUND Very-low-birthweight (VLBW) neonates (<1500g) comprise approximately 1% of liveborn infants in Poland. Patent ductus arteriosus (PDA) is a common complication of prematurity. This study aimed to determine how many VLBW neonates treated in the participating units needed surgical correction of PDA, and to evaluate the incidence of various types of postoperative infections and their microbiology. METHODS Observational study in five neonatology departments by the Polish Neonatology Surveillance Network, involving 2039 VLBW newborns of whom 103 (5.1%) required surgical PDA ligation. Continuous infection surveillance was conducted between 2009 and 2013; infections were defined based on Gastmeier's criteria. RESULTS PDA surgery was required significantly more frequently in infants from multiple pregnancies, and where labour was complicated by amnionitis. Surgical PDA correction was performed, on average, at 19 days of life. The incidence of infection was 48.5% (N = 50), and the most common infections were bloodstream infection (26.2%) and pneumonia (22.3%). A correlation was observed between the day on which the procedure was performed and the time of infection: the earlier the neonate underwent PDA surgery, the earlier the infection manifested (P = 0.032). A high CRIB score and chorioamnionitis contributed significantly to the presence of infection. CONCLUSION The later the PDA surgery was performed, the later the infection occurred. The incidence of infection after correction of PDA among VLBW neonates was comparable with the incidence of infection among all hospitalized VLBW neonates.
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Affiliation(s)
- K Kopeć-Godlewska
- Faculty of Health Sciences, Jagiellonian University Medical College, Krakow, Poland
| | - J Wójkowska-Mach
- Microbiology Department, Faculty of Medicine, Jagiellonian University Medical College, Krakow, Poland.
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Różańska A, Wójkowska-Mach J, Adamski P, Borszewska-Kornacka M, Gulczyńska E, Nowiczewski M, Helwich E, Kordek A, Pawlik D, Bulanda M. Antibiotic consumption in laboratory confirmed vs. non-confirmed bloodstream infections among very low birth weight neonates in Poland. Ann Clin Microbiol Antimicrob 2017; 16:20. [PMID: 28359268 PMCID: PMC5374675 DOI: 10.1186/s12941-017-0196-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Accepted: 03/23/2017] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Newborns are a population in which antibiotic consumption is extremely high. Targeted antibiotic therapy should help to reduce antibiotics consumption. The aim of this study was an assessment of antibiotic usage in bloodstream infections treatment in the Polish Neonatology Surveillance Network (PNSN) and determining the possibility of applying this kind of data in infection control, especially for the evaluation of standard methods of microbiological diagnostics. METHODS Data were collected between 01.01.2009 and 31.12.2013 in five teaching NICUs from the PNSN. The duration of treatment in days (DOT) and the defined daily doses (DDD) were used for the assessment of antibiotics consumption. RESULTS The median DOT for a single case of BSI amounted to 8.0 days; whereas the median consumption expressed in DDD was 0.130. In the case of laboratory confirmed BSI, median DOT was 8 days, and consumption-0.120 DDD. Median length of therapy was shorter for unconfirmed cases: 7 days, while the consumption of antibiotics was higher-0.140 DDD (p < 0.0001). High consumption of glycopeptides expressed in DOTs was observed in studied population, taking into account etiology of infection. CONCLUSIONS Even application of classical methods of microbiological diagnostics significantly reduces the consumption of antibiotics expressed by DDD. However, the high consumption of glycopeptides indicates the necessity of applying rapid diagnostic assays. Nevertheless, the assessment of antibiotic consumption in neonatal units represents a methodological challenge and requires the use of different measurement tools.
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Affiliation(s)
- A. Różańska
- Chair of Microbiology, Jagiellonian University Medical College, 18 Czysta Street, 31-121 Krakow, Poland
| | - J. Wójkowska-Mach
- Chair of Microbiology, Jagiellonian University Medical College, 18 Czysta Street, 31-121 Krakow, Poland
| | - P. Adamski
- Institute of Nature Conservation Polish Academy of Sciences, Krakow, Poland
| | - M. Borszewska-Kornacka
- Clinic of Neonatology and Intensive Neonatal Care, Warsaw Medical University, Warsaw, Poland
| | - E. Gulczyńska
- Clinic of Neonatology, Polish Mother’s Memorial Hospital-Research Institute, Lodz, Poland
| | - M. Nowiczewski
- Clinic of Neonatology, Polish Mother’s Memorial Hospital-Research Institute, Lodz, Poland
| | - E. Helwich
- Clinic of Neonatology and Intensive Neonatal Care, Institute of Mother and Child, Warsaw, Poland
| | - A. Kordek
- Department of Neonatal Diseases, Pomeranian Medical University, Szczecin, Poland
| | - D. Pawlik
- Clinic of Neonatology, Jagiellonian University Medical College, Krakow, Poland
| | - M. Bulanda
- Chair of Microbiology, Jagiellonian University Medical College, 18 Czysta Street, 31-121 Krakow, Poland
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Device-associated pneumonia of very low birth weight infants in Polish Neonatal Intensive Care Units. Adv Med Sci 2016; 61:90-5. [PMID: 26583299 DOI: 10.1016/j.advms.2015.09.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Revised: 08/13/2015] [Accepted: 09/10/2015] [Indexed: 11/24/2022]
Abstract
PURPOSE Late-Onset Pneumonia (LO-PNEU) is still the most important complication associated with the hospitalization of infants with very low birth weight (<1501g). The purpose of this paper is to summarize the results of an ongoing surveillance program defining LO-PNEU as associated or not associated with respiratory support in the NICU and distribution of causative pathogens from the Polish Neonatology Surveillance Network (PNSN). MATERIALS AND METHODS Surveillance of infections was conducted in the years 2009-2011 at six Polish NICUs. RESULTS The incidence was 3.1/1000 NICU patient days (pds). The mean gestational age and birth weight among infants with LO-PNEU were significantly lower. The VAP incidence was of 18.2/1000 NICU pds for mechanically ventilated (MV) infants, while the rates for those receiving only CPAP were as low as 7.7/1000 NICU pds. MV significantly increased the risk of PNEU, but MV or CPAP for <10 days did not increase the risk of LO-PNEU. Significantly associated with LO-PNEU was the use of central or peripheral venous catheters and total parenteral nutrition for longer periods. Microorganisms isolated in cases of LO-PNEU were Gram-positive cocci (53.5%) and Gram-negative rods, with predominating E. coli. Non fermentative bacilli were significantly more frequent in cases of VAP than in other cases. CONCLUSIONS Observed incidence rates associated with VAP and CPAP-PNEU, were higher than in other national surveillance systems and expressing the feasibility of lowering the risk of LO-PNEU and increasing patient safety. The incidence of pneumonia was found to be lower when using CPAP as compared to using MV.
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Lee SM, Chang M, Kim KS. Blood Culture Proven Early Onset Sepsis and Late Onset Sepsis in Very-Low-Birth-Weight Infants in Korea. J Korean Med Sci 2015; 30 Suppl 1:S67-74. [PMID: 26566360 PMCID: PMC4641066 DOI: 10.3346/jkms.2015.30.s1.s67] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Accepted: 09/25/2015] [Indexed: 11/20/2022] Open
Abstract
Neonatal sepsis remains one of the most important causes of death and co-morbidity in very-low-birth-weight (VLBW) infants. The aim of this study was to determine the current incidences of early-onset sepsis (EOS) and late-onset sepsis (LOS), the distribution of pathogens, and the impact of infection on co-morbidities in VLBW infants. We analyzed the data including sepsis episode from 2,386 VLBW infants enrolled in Korean Neonatal Network from January 2013 to June 2014. We defined EOS as a positive blood culture occurring between birth and 7 days of life and LOS after 7 days of life. Sepsis was found in 21.1% of VLBW infants. The risk of sepsis was inversely related to birth weight and gestational age. EOS was found in only 3.6% of VLBW infants, however the mortality rate was as high as 34.1%. EOS was associated with the increased odds for bronchopulmonary dysplasia and intraventricular hemorrhage. The vast majority of EOS was caused by Gram-positive organisms, particularly coagulase-negative staphylococci (30.6%). LOS developed in 19.4% of VLBW infants with a 16.1% mortality rate. Pathogens in LOS were dominated by coagulase-negative staphylococci (38.3%). Twenty-five percent and fifty percent of first LOS episode occurred after 12 days and 20 days from birth, respectively. Younger and smaller VLBW infants showed the earlier occurrence day for the 25% of first LOS episode. This study provides a recent nationwide epidemiology of sepsis in VLBW infants in Korea. Based on this study, successful strategies to reduce infections would improve survival and reduce morbidity.
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Affiliation(s)
- Soon Min Lee
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea
| | - Meayoung Chang
- Department of Pediatrics, School of Medicine, Chungnam National University, Daejeon, Korea
| | - Ki-Soo Kim
- Department of Pediatrics, University of Ulsan College of Medicine, Seoul, Korea
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Infections and risk-adjusted length of stay and hospital mortality in Polish Neonatology Intensive Care Units. Int J Infect Dis 2015; 35:87-92. [PMID: 25936583 DOI: 10.1016/j.ijid.2015.04.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 04/14/2015] [Accepted: 04/23/2015] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND The objectives of this study were to analyze the impact of infections on prolonging hospital stay with consideration of underlying risk factors and determining the mortality rates and its association with infections. METHODS An electronic database developed from a continuous prospective targeted infection surveillance program was used in the study. Data were collected from 2009 to 2012 in five Polish tertiary academic neonatal intensive care units (NICUs). The length of stay (LOS) of 2,003 very low birth weight (VLBW) neonates was calculated as the sum of the number of days since birth until death or until reaching a weight of 1,800g. RESULTS The median LOS for neonates with infections was twice as high as for neonates without infection. LOS was significantly affected by the overall general condition of the neonate, as expressed by both gestational age and birth weight as well as by the Clinical Risk Index for Babies (CRIB) score; another independent factor was presence of at least one infection. Risk of in-hospital mortality was significantly increased by male sex and vaginal birth and was lower among breastfed neonates. Deaths were significantly more frequent in neonates without infection. CONCLUSIONS The general condition of VLBW infants statistically increase both their risk of mortality and LOS; this is in contrast to the presence of infection, which significantly prolonged LOS only.
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Chmielarczyk A, Wójkowska-Mach J, Romaniszyn D, Adamski P, Helwich E, Lauterbach R, Pobiega M, Borszewska-Kornacka M, Gulczyńska E, Kordek A, Heczko PB. Mode of delivery and other risk factors for Escherichia coli infections in very low birth weight infants. BMC Pediatr 2014; 14:274. [PMID: 25326700 PMCID: PMC4287582 DOI: 10.1186/1471-2431-14-274] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Accepted: 10/09/2014] [Indexed: 02/08/2023] Open
Abstract
Background Infections in newborns remain one of the most significant problems in modern medicine. Escherichia coli is an important cause of neonatal bloodstream and respiratory tract infections and is associated with high mortality. The aim of our study was to investigate the epidemiology of E. coli infection in Polish neonatal intensive care units (NICUs) and resistance to antibiotics, with particular reference to the safety of very low birth weight infants. Methods Continuous prospective infection surveillance was conducted in 2009–2012 in five NICUs, including 1,768 newborns whose birth weight was <1.5 kg. Escherichia coli isolates from different diagnostic specimens including blood, tracheal/bronchial secretions and others were collected. All isolates were tested using disk diffusion antimicrobial susceptibility methods. Pulsed-field gel electrophoresis was used to determine the possible horizontal transfer of E. coli among patients. Results The incidence of E. coli infections was 5.4% and 2.0/1,000 patient-days. The occurrence of E. coli infections depended significantly on the NICU and varied between 3.9% and 17.9%. Multivariate analysis that took into account the combined effect of demographic data (gender, gestational age and birth weight) and place of birth showed that only the place of hospitalisation had a significant effect on the E. coli infection risk. The highest levels of resistance among all E. coli isolates were observed against ampicillin (88.8%) and amoxicillin/clavulanic acid (62.2%). Among E. coli isolates, 17.7% were classified as multidrug resistant. Escherichia coli isolates showed different pulsotypes and dominant epidemic clones were not detected. Conclusions Our data indicate that antibiotic prophylaxis in the presence of symptoms such as chorioamnionitis and premature rupture of membranes did not help reduce the risk of E. coli infection. Multivariate analysis demonstrated only one significant risk factor for E. coli infection among infants with a birth weight <1.5 kg, that is, the impact of the NICU, it means that both neonatal care and care during pregnancy and labour were found to be significant.
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Affiliation(s)
- Agnieszka Chmielarczyk
- Department of Microbiology, Jagiellonian University Medical College, 18 Czysta Street, 31-121 Krakow, Poland.
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Wójkowska-Mach J, Gulczyńska E, Nowiczewski M, Borszewska-Kornacka M, Domańska J, Merritt TA, Helwich E, Kordek A, Pawlik D, Gadzinowski J, Szczapa J, Adamski P, Sulik M, Klamka J, Brzychczy-Włoch M, Heczko PB. Late-onset bloodstream infections of Very-Low-Birth-Weight infants: data from the Polish Neonatology Surveillance Network in 2009-2011. BMC Infect Dis 2014; 14:339. [PMID: 24939563 PMCID: PMC4074408 DOI: 10.1186/1471-2334-14-339] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Accepted: 06/09/2014] [Indexed: 12/02/2022] Open
Abstract
Background Late-Onset Bloodstream Infections (LO-BSI) continue to be one of the most important complications associated with hospitalization of infants born with very low birth weight (VLBW). The aims of this study were to assess the epidemiology of LO-BSI together with the risk factors and the distribution of causative pathogens at six Polish neonatal intensive care units that participated in the Polish Neonatology Surveillance Network from January 1, 2009 to December 31, 2011. Methods The surveillance covered 1,695 infants whose birth weights were <1501 grams (VLBW) in whom LO-BSI was diagnosed >72 hours after delivery. Case LO-BSI patients were defined according to NeoKISS. Results Four hundred twenty seven episodes of LO-BSI were diagnosed with a frequency of 25.3% and an incidence density of 6.7/1000 patient-days (pds). Results of our multivariate analysis demonstrated that surgical procedures and lower gestational age were significantly associated with the risk of LO-BSI. Intravascular catheters were used in infants with LO-BSI significantly more frequently and/or for longer duration: Central venous cathters (CVC) (OR 1.29) and Peripheral venous catheters (PVC) (OR 2.8), as well as, the total duration of total parenteral nutrition (13 vs. 29 days; OR 1.81). Occurrence of LO-BSI was significantly associated with increased the length of mechanical ventilation (MV) (OR 2.65) or the continuous positive airway pressure (CPAP) (OR 2.51), as well as, the duration of antibiotic use (OR 2.98). The occurrence of more than one infection was observed frequently (OR 9.2) with VLBW with LO-BSI. Microorganisms isolated in infants with LO-BSI were dominated by Gram-positive cocci, and predominantly by coagulase-negative staphylococci (62.5%). Conclusions Independent risk factor for LO-BSI in VLBV infants are: low gestational age and requirement for surgery. The incidence rates of LO-BSI especially CVC-BSI were higher in the Polish NICUs surveillance than those of other national networks, similar to the central- and peripheral utilization ratio.
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Affiliation(s)
- Jadwiga Wójkowska-Mach
- Microbiology, Jagiellonian University Medical College, 18 Czysta Street, Krakow 31-121, Poland.
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Brzychczy-Wloch M, Borszewska-Kornacka M, Gulczynska E, Wojkowska-Mach J, Sulik M, Grzebyk M, Luchter M, Heczko PB, Bulanda M. Prevalence of antibiotic resistance in multi-drug resistant coagulase-negative staphylococci isolated from invasive infection in very low birth weight neonates in two Polish NICUs. Ann Clin Microbiol Antimicrob 2013; 12:41. [PMID: 24359473 PMCID: PMC3898809 DOI: 10.1186/1476-0711-12-41] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Accepted: 12/15/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Multi-drug resistant coagulaso-negative staphylococci (CNS) have become an increasing problem in nosocomial infections connected with the presence of medical devices. The paper aimed to analyze the prevalence of antibiotic resistance in CNS isolated from invasive infection in very low birth weight (VLBW) neonates. METHODS Continuous prospective target surveillance of infections was conducted in 2009 at two Polish NICUs that participated in the Polish Neonatology Surveillance Network (PNSN). The study covered 386 neonates with VLBW (≤1500 g), among which 262 cases of invasive infection were detected with predominance of CNS (123; 47%). Altogether, 100 CNS strains were analyzed. The resistance phenotypes were determined according to EUCAST. Resistance genes: mecA, ermA, ermB, ermC, msrA, aac(6')/aph(2''), ant(4')-Ia and aph(3')-IIIa were detected using multiplex PCR. RESULTS The most common species was S. epidermidis (63%), then S. haemolyticus (28%) and other CNS (9%). Among S. epidermidis, 98% of isolates were resistant to methicillin, 90% to erythromycin, 39% to clindamycin, 95% to gentamicin, 60% to amikacin, 36% to ofloxacin, 2% to tigecycline, 3% to linezolid and 13% to teicoplanin. Among S. haemolyticus isolates, 100% were resistant to methicillin, erythromycin and gentamicin, 18% to clindamycin, 50% to amikacin, 86% to ofloxacin, 14% to tigecycline and 4% to teicoplanin. No resistance to linezolid was detected for S. haemolyticus isolates. Moreover, all isolates of S. epidermidis and S. haemolyticus were susceptible to vancomycin. The mecA gene was detected in 98% of S. epidermidis isolates and all of S. haemolyticus ones. Among macrolide resistance isolates, the ermC was most common in S. epidermidis (60%) while msrA was prevalent in S. haemolyticus (93%). The ermC gene was indicated in all isolates with cMLSB, whereas mrsA was found in isolates with MSB phenotype. Of the aminoglycoside resistance genes, aac(6')/aph(2'') were present alone in 83% of S. epidermidis, whereas aac(6')/aph(2'') with aph(3')-IIIa were predominant in 84% of S. haemolyticus. CONCLUSIONS Knowing the epidemiology and antibiotic resistance of CNS isolated from invasive infection in VLBW neonates is a key step in developing targeted prevention strategies and reducing antibiotic consumption.
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Affiliation(s)
- Monika Brzychczy-Wloch
- Department of Bacteriology, Microbial Ecology and Parasitology, Chair of Microbiology, Jagiellonian University Medical College, Czysta Street 18, 31-121, Krakow, Poland
| | | | | | - Jadwiga Wojkowska-Mach
- Department of Bacteriology, Microbial Ecology and Parasitology, Chair of Microbiology, Jagiellonian University Medical College, Czysta Street 18, 31-121, Krakow, Poland
| | | | - Monika Grzebyk
- Department of Bacteriology, Microbial Ecology and Parasitology, Chair of Microbiology, Jagiellonian University Medical College, Czysta Street 18, 31-121, Krakow, Poland
| | - Malgorzata Luchter
- Department of Bacteriology, Microbial Ecology and Parasitology, Chair of Microbiology, Jagiellonian University Medical College, Czysta Street 18, 31-121, Krakow, Poland
| | - Piotr B Heczko
- Department of Bacteriology, Microbial Ecology and Parasitology, Chair of Microbiology, Jagiellonian University Medical College, Czysta Street 18, 31-121, Krakow, Poland
| | - Malgorzata Bulanda
- Department of Epidemiology of Infection, Chair of Microbiology, Jagiellonian University Medical College, Krakow, Poland
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Chan GJ, Lee ACC, Baqui AH, Tan J, Black RE. Risk of early-onset neonatal infection with maternal infection or colonization: a global systematic review and meta-analysis. PLoS Med 2013; 10:e1001502. [PMID: 23976885 PMCID: PMC3747995 DOI: 10.1371/journal.pmed.1001502] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2012] [Accepted: 07/12/2013] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Neonatal infections cause a significant proportion of deaths in the first week of life, yet little is known about risk factors and pathways of transmission for early-onset neonatal sepsis globally. We aimed to estimate the risk of neonatal infection (excluding sexually transmitted diseases [STDs] or congenital infections) in the first seven days of life among newborns of mothers with bacterial infection or colonization during the intrapartum period. METHODS AND FINDINGS We searched PubMed, Embase, Scopus, Web of Science, Cochrane Library, and the World Health Organization Regional Databases for studies of maternal infection, vertical transmission, and neonatal infection published from January 1, 1960 to March 30, 2013. Studies were included that reported effect measures on the risk of neonatal infection among newborns exposed to maternal infection. Random effects meta-analyses were used to pool data and calculate the odds ratio estimates of risk of infection. Eighty-three studies met the inclusion criteria. Seven studies (8.4%) were from high neonatal mortality settings. Considerable heterogeneity existed between studies given the various definitions of laboratory-confirmed and clinical signs of infection, as well as for colonization and risk factors. The odds ratio for neonatal lab-confirmed infection among newborns of mothers with lab-confirmed infection was 6.6 (95% CI 3.9-11.2). Newborns of mothers with colonization had a 9.4 (95% CI 3.1-28.5) times higher odds of lab-confirmed infection than newborns of non-colonized mothers. Newborns of mothers with risk factors for infection (defined as prelabour rupture of membranes [PROM], preterm <37 weeks PROM, and prolonged ROM) had a 2.3 (95% CI 1.0-5.4) times higher odds of infection than newborns of mothers without risk factors. CONCLUSIONS Neonatal infection in the first week of life is associated with maternal infection and colonization. High-quality studies, particularly from settings with high neonatal mortality, are needed to determine whether targeting treatment of maternal infections or colonization, and/or prophylactic antibiotic treatment of newborns of high risk mothers, may prevent a significant proportion of early-onset neonatal sepsis. Please see later in the article for the Editors' Summary.
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Affiliation(s)
- Grace J Chan
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.
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Pisani V, Bizzarri B, Cardi V, Pedicino R, Natale F, Stolfi I, Castronovo A, De Curtis M. Early onset sepsis in very low birth weight newborn infants. J Matern Fetal Neonatal Med 2013; 25 Suppl 3:21-5. [PMID: 23016613 DOI: 10.3109/14767058.2012.712348] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Early onset sepsis (EOS) is a severe problem affecting very low birth weight (VLBW) infants and is associated with a threefold increased risk of mortality. Although advances in perinatal care have led to improved survival of VLBW infants over recent decades, survival without major neonatal morbidity has not increased. The authors reviewed the current literature on EOS, focusing on the peculiarities concerning risk factors, etiology, diagnosis, treatment and outcome in very low birth weight infants, and on the recent advances in the management of this condition.
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Affiliation(s)
- Valentina Pisani
- Paediatrics and Infant Neuropsychiatry Department, Sapienza University of Rome, Rome, Italy
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Bibliography. Current world literature. Neonatology and perinatology. Curr Opin Pediatr 2013; 25:275-81. [PMID: 23481475 DOI: 10.1097/mop.0b013e32835f58ca] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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