RESUMO
<b>Background and Objective:</b> Group B <i>Streptococci</i> (GBS) are globally recognized as a major risk factor for neonatal infections and various obstetric complications. More so, biofilm formation has been suggested to be important for GBS pathogenesis. The aim of this study was to determine the prevalence and antibiotic susceptibility pattern of GBS among pregnant women and their capacity to form biofilm. <b>Materials and Methods:</b> A total of 87 pregnant women at 34 to 37 weeks' gestation aged 17-45 years were recruited from 3 healthcare centres in Delta State, Nigeria. Cultures for the isolation of GBS were carried out using recto-vaginal swabs, according to standard microbiological methods. All strains isolated were used for susceptibility tests to various antibiotics as recommended by CLSI using the disk-diffusion method. <b>Results:</b> The overall prevalence of GBS colonization among pregnant women was 43.6% (38/87). The <u><</u>30 age group had the highest rate of GBS colonization. Resistance to erythromycin and vancomycin was 48.2 and 66.4%, respectively. The fluoroquinolones had the lowest resistant rates with no isolate showing resistance to ofloxacin. Multidrug resistance (MDR) (<u>></u>3 drug classes) was detected in 73.7% (28/38) of the GBS isolates. All GBS isolated in this study were either strong, moderate or weak biofilm producers. However, most 28 (73.7%) were strong biofilm producers. Resistance of GBS isolates to erythromycin and vancomycin, drugs used for treating GBS infection was high. <b>Conclusion:</b> This suggested the importance of testing antimicrobial susceptibilities in GBS colonized pregnant women in order to guide antibiotic therapy and minimize newborn infection and co-morbidity.
Assuntos
Antibacterianos , Complicações Infecciosas na Gravidez , Infecções Estreptocócicas , Streptococcus agalactiae , Humanos , Feminino , Gravidez , Nigéria/epidemiologia , Adulto , Streptococcus agalactiae/efeitos dos fármacos , Streptococcus agalactiae/isolamento & purificação , Antibacterianos/uso terapêutico , Antibacterianos/farmacologia , Infecções Estreptocócicas/microbiologia , Infecções Estreptocócicas/tratamento farmacológico , Infecções Estreptocócicas/diagnóstico , Infecções Estreptocócicas/epidemiologia , Adulto Jovem , Complicações Infecciosas na Gravidez/microbiologia , Complicações Infecciosas na Gravidez/tratamento farmacológico , Complicações Infecciosas na Gravidez/diagnóstico , Complicações Infecciosas na Gravidez/epidemiologia , Farmacorresistência Bacteriana Múltipla , Testes de Sensibilidade Microbiana , Adolescente , Biofilmes/efeitos dos fármacos , Biofilmes/crescimento & desenvolvimento , Pessoa de Meia-Idade , Prevalência , Eritromicina/uso terapêuticoRESUMO
This study explores the role of the vaginal microbiota (VM) in the pathophysiology of asymptomatic bacteriuria (ASB) in a cohort of 1,553 pregnant women. Worldwide, E. coli remains the most common etiological agent of bacteriuria during pregnancy and also a major causative agent of newborn infections. A healthy VM is typically characterized by low diversity and is dominated by lactic acid-producing species, notably those from the Lactobacillus genus. Our results point to decreases in Lactobacillus spp associated with an increase of gut-microbiota-associated species from the Enterobacterales order. Escherichia coli exhibited the most pronounced increase in abundance within the VM during bacteriuria and was notably associated with ASB. Molecular typing and antimicrobial resistance characterization of 72 metagenome assembled E. coli genomes (MAGs) from these pregnant women revealed a genomic signature of extraintestinal pathogenic E. coli ("ExPEC") strains, which are involved in various extraintestinal infections such as urinary tract infections, newborn infections and bacteremia. Microbial diversity within the vaginal samples from which an E. coli MAG was obtained showed a substantial variation, primarily marked by a decrease in abundance of Lactobacillus species. Overall, our study shows how disruption in key bacterial group within the VM can disrupt its stability, potentially leading to the colonization by opportunistic pathogens.
Assuntos
Infecções por Escherichia coli , Escherichia coli , Microbiota , Vagina , Feminino , Humanos , Vagina/microbiologia , Gravidez , Escherichia coli/genética , Escherichia coli/patogenicidade , Infecções por Escherichia coli/microbiologia , Adulto , Bacteriúria/microbiologia , Complicações Infecciosas na Gravidez/microbiologia , Lactobacillus/genética , Lactobacillus/isolamento & purificaçãoRESUMO
There are sparse data on the role of the vaginal microbiome (VMB) in pregnancy among pregnant women living with HIV (PWLWH) and its association with spontaneous preterm birth (sPTB). We conducted a scoping review to assess associations between vaginal microbiota and sPTB among PWLWH. Three studies were included, representing a total of 180 PWLWH out of 652 total pregnancies. All studies used modern DNA sequencing methods (16S rRNA amplification, metagenomics, or metatranscriptomics). PWLWH had higher VMB richness and diversity compared to HIV-uninfected pregnant women and higher sPTB rates in two of three studies. A higher proportion of sPTB among PWLWH was observed in those with Lactobacillus-deficient, anaerobe-dominant vaginal microbiota. In two of three studies, higher concentrations of vaginal inflammation markers were associated with increased VMB richness and diversity. HIV status was independently associated with sPTB. It is unclear if increased vaginal microbial diversity among PWLWH or increased vaginal inflammation contributes more to PTB, but HIV does appear to alter the VMB in pregnant individuals and may also affect PTB rates in microbiome-independent pathways. Given the limited number of studies, heterogeneity in sample size, sample collection methods, and inconsistent results it is difficult to causally link HIV, VMB, inflammatory cytokines, and sPTB.
Assuntos
Infecções por HIV , Microbiota , Nascimento Prematuro , Vagina , Humanos , Feminino , Vagina/microbiologia , Infecções por HIV/imunologia , Infecções por HIV/complicações , Infecções por HIV/microbiologia , Nascimento Prematuro/microbiologia , Gravidez , Complicações Infecciosas na Gravidez/microbiologia , Complicações Infecciosas na Gravidez/imunologiaRESUMO
BACKGROUND: Asymptomatic bacteriuria (ASB) affects 23.9% of pregnant women globally and, if left untreated, can lead to adverse fetomaternal outcomes. In Tanzania, ASB prevalence has ranged from 13% to 17% over the past decade. Yet, its impact on fetomaternal outcomes remains unexplored, hindering the development of screening strategies, antimicrobial therapies, and preventive measures for this vulnerable population. METHODS: A cross-sectional analytical study was conducted on 1,093 pregnant women admitted for delivery at Bugando Medical Center (BMC) in Mwanza, Tanzania, from July to December 2022. Socio-demographic, obstetric, and clinical data were collected from the women, along with mid-stream urine samples for analysis. Fetomaternal outcomes were assessed within 72 hours after delivery. RESULTS: The median age of participants was 29 years (range: 15-45 years). ASB prevalence among pregnant women was 16.9% (185/1093), with a 95% CI of 14.6-19.3%. Risk factors for ASB included anemia (OR: 5.3; 95% CI = 3.7-8.2, p-value <0.001) and a history of antenatal care admission (OR 4.2; 95% CI = 2.9-6.1, p-value <0.001). Among all participants, 82 (7.5%), 65 (5.9%), 49 (4.5%), and 79 (7.2%) experienced pre-term labor (PTL), premature rupture of membrane (PROM), preeclampsia, and delivered newborns with low birthweight (LBW), respectively. Among the 185 patients with ASB, the respective proportions of PTL, PROM, preeclampsia, and LBW were 25.4%, 17.3%, 9.2%, and 12.4%. Multivariable logistic regression analysis revealed significant associations between ASB and PTL [OR (95% CI): 8.8 (5.5-14.5); p-value <0.001], PROM [OR (95% CI): 4.5 (2.5-8.0); p-value <0.001], and LBW [OR (95% CI): 2.0 (1.2-3.5); p-value = 0.011]. Escherichia coli (50.8%) and Klebsiella pneumoniae (14.05%) were the most common pathogens, with low resistance rates to nitrofurantoin, amoxicillin-clavulanate, and cephalosporins-antibiotics considered safe during pregnancy-ranging from 8.2% to 31.0%. CONCLUSION: The prevalence of ASB among pregnant women in Tanzania remains high and is associated with adverse fetomaternal outcomes. Integrating routine urine culture screening for all pregnant women, irrespective of symptoms, and providing specific antimicrobial therapies during antenatal care can help prevent adverse pregnancy outcomes.
Assuntos
Bacteriúria , Complicações Infecciosas na Gravidez , Humanos , Feminino , Gravidez , Tanzânia/epidemiologia , Adulto , Bacteriúria/epidemiologia , Bacteriúria/microbiologia , Bacteriúria/tratamento farmacológico , Adolescente , Estudos Transversais , Adulto Jovem , Complicações Infecciosas na Gravidez/epidemiologia , Complicações Infecciosas na Gravidez/microbiologia , Prevalência , Pessoa de Meia-Idade , Resultado da Gravidez/epidemiologia , Fatores de Risco , Recém-NascidoRESUMO
INTRODUCTION: Premature rupture of membrane (PROM) refers to the disruption of the fetal membrane before the beginning of labor, resulting in spontaneous leakage of amniotic fluid. Cervicovaginal infection is an important risk factor of PROM and can lead to complications to mother and the child. This study aimed to delineate the bacterial patterns found in PROM so that the ideal appropriate responsive antibiotics can be chosen. METHODS: A descriptive cross-sectional was done during the period of 6 months from December of 2023 to May 2023, to characterize the microorganisms in the vaginal fluid found in antenatal women presenting with premature rupture of membraneafter obtaining ethical approval (IRC number: 20102023/02). A total of 117 antenatal women diagnosed with premature rupture of membrane were included in the study. High vaginal swabs were collected for microbial culture and sensitivity. Data were entered using Microsoft Excel 2000 (v9.0) and Statistical Package for the Social Sciences (SPSS) software version 26.0 was used for analysis. RESULTS: Out of 117 samples, culture growth was present in the culture of high vaginal swabs of 23 (19.66%) women. The high vaginal swab cultures from the samples collected in women presenting with PROM reported 9 different types of pathogens E. coli in 12 (52.17%), Klebsiella in 4 (17.39%) and Pseudomonas in 2 (8.70%) cultures. CONCLUSIONS: This study reveals diverse microorganisms in premature rupture of membrane cases, with E. coli being the most common. Identifying these bacterial patterns is essential for selecting effective antibiotics, improving maternal and neonatal outcomes, and reducing morbidity and mortality by early detection and treatment of vaginal infections.
Assuntos
Ruptura Prematura de Membranas Fetais , Vagina , Humanos , Feminino , Ruptura Prematura de Membranas Fetais/microbiologia , Ruptura Prematura de Membranas Fetais/diagnóstico , Estudos Transversais , Gravidez , Vagina/microbiologia , Adulto , Adulto Jovem , Antibacterianos/uso terapêutico , Escherichia coli/isolamento & purificação , Nepal , Complicações Infecciosas na Gravidez/microbiologia , Complicações Infecciosas na Gravidez/diagnósticoRESUMO
Group B Streptococcus (GBS) asymptomatically colonises the vagina of up to 40% of pregnant women and can transmit to neonates during birth, causing neonatal pneumonia, sepsis, meningitis, and significant mortality. Vaginal GBS colonisation can be attributed to a range of host and bacterial factors, which may include the composition of the vaginal microbial community. There are few studies that have examined the vaginal community composition in relation to GBS colonisation throughout pregnancy. Here, we performed 16S rRNA sequencing (V3-V4) on vaginal swabs from women at 24- and 36-weeks' gestation, who were GBS culture-negative or GBS culture-positive at either 24 weeks or 36 weeks' gestation or at both timepoints. Vaginal swabs from 93 women were analysed; 46 women were culture-negative, 11 women GBS culture-positive at 24 weeks only, 21 women GBS culture-positive at 36 weeks only and 15 women GBS culture-positive at both timepoints on Brilliance GBS agar. V3-V4 16S rRNA gene amplicon sequencing demonstrated that in women that were GBS culture-positive at 36 weeks gestation only, G. vaginalis was significantly more abundant at 24-weeks' gestation despite a lack of significant changes in community richness between the 24- and 36-week samples. The vaginal microbial communities of women persistently colonised with GBS, had a significantly higher abundance of Lactobacillus iners, compared to other groups where L. crispatus, L. gasseri or L. jensenii were dominant. We have characterised the vaginal microbial community composition during pregnancy in relation to GBS colonisation status, in a longitudinal study for the first time. The most interesting finding was that in women that were persistently colonised with GBS throughout pregnancy, there was a significant increase in L. iners and significant reduction in L. crispatus abundance. Given the lack of detail of the role that the vaginal microbial community plays in GBS colonisation in the literature, it is imperative that the relationship between L. iners and GBS in this unique environmental niche is further investigated.
Assuntos
Lactobacillus crispatus , Lactobacillus , Microbiota , RNA Ribossômico 16S , Infecções Estreptocócicas , Streptococcus agalactiae , Vagina , Humanos , Feminino , Gravidez , Vagina/microbiologia , Streptococcus agalactiae/isolamento & purificação , Streptococcus agalactiae/genética , RNA Ribossômico 16S/genética , Lactobacillus/isolamento & purificação , Lactobacillus/genética , Lactobacillus/classificação , Infecções Estreptocócicas/microbiologia , Adulto , Lactobacillus crispatus/isolamento & purificação , Lactobacillus crispatus/genética , Complicações Infecciosas na Gravidez/microbiologiaRESUMO
BACKGROUND: Cerebral venous sinus thrombosis (CVST), a serious cerebrovascular and neurological emergency, is common in pregnant individuals and accounts for approximately 0.5-1.0% of all cerebrovascular diseases. However, CVST with cryptococcal meningoencephalitis in immunocompetent pregnant patients is rare. CASE PRESENTATION: A 30-year-old woman who was 33 weeks pregnant presented with recurrent dizziness, headache, and vomiting as the main clinical manifestations, all of which were initially nonspecific. After assessment of the cerebrospinal fluid, skull computerized tomography, magnetic resonance imaging, and other laboratory and imaging examinations, the patient was diagnosed with secondary pregnancy-related CVST with cryptococcal meningoencephalitis. Despite receiving potent anticoagulant and antifungal treatment, the patient's condition deteriorated, and the patient's family opted to cease treatment. CONCLUSIONS: We present a rare case of CVST with cryptococcal meningoencephalitis in an immunocompetent pregnant patient. The difficulty of diagnosing and treating secondary pregnancy-related CVST caused by cryptococcal meningoencephalitis, as well as the great challenges faced at present are highlighted. One crucial lesson from the present case is that when clinical and imaging signs are unusual for CVST during pregnancy, it is essential to account for the possibility of other central nervous system (CNS) diseases, such as CNS infections with Cryptococcus, which may cause CVST.
Assuntos
Meningoencefalite , Complicações Infecciosas na Gravidez , Trombose dos Seios Intracranianos , Humanos , Feminino , Gravidez , Adulto , Trombose dos Seios Intracranianos/tratamento farmacológico , Trombose dos Seios Intracranianos/diagnóstico por imagem , Trombose dos Seios Intracranianos/etiologia , Trombose dos Seios Intracranianos/microbiologia , Meningoencefalite/microbiologia , Meningoencefalite/complicações , Meningoencefalite/tratamento farmacológico , Meningoencefalite/diagnóstico por imagem , Complicações Infecciosas na Gravidez/microbiologia , Complicações Infecciosas na Gravidez/tratamento farmacológico , Antifúngicos/uso terapêutico , Imageamento por Ressonância Magnética , Tomografia Computadorizada por Raios X , Criptococose/complicações , Criptococose/tratamento farmacológico , Criptococose/diagnóstico por imagem , Criptococose/diagnóstico , Criptococose/microbiologiaRESUMO
INTRODUCTION: Urinary tract infections (UTIs) pose a significant health concern, particularly among pregnant women, for whom accurate diagnosis is essential. However, the use of Urine flow cytometry (UF) for detecting UTIs in this demographic often results in misdiagnosis. The objective of this study was to explore the reasons behind these diagnostic errors and to develop a strategy to minimize the rate of UTI misdiagnosis in pregnant women. MATERIAL AND METHODS: The study enrolled 1,200 women aged 18 to 40 years, categorized into pregnant and non-pregnant groups. UTIs were diagnosed using urine bacterial culture, microscopic examination, and UF, followed by statistical analysis to identify any discrepancies in diagnosis between the groups. Following the calibration of UF analyzer's parameters, the most effective CR(WBC)-CW-FSC-P Gain setting for diagnosing UTIs in pregnant women through UF was ascertained by applying the Youden index. RESULTS: The clinical diagnosis rate of UTIs was significantly higher in pregnant women (40.91%) compared to non-pregnant women (20.26%). However, urine microscopy and bacterial culture showed no significant difference in the rates of UTIs between the two groups, suggesting a potential for misdiagnosis. The false-positive rate for WBCs detected by UF was 30.43%, and adjusting the CR(WBC)-CW-FSC-P Gain value of UF reduced the false-positive rate to 9.45%. CONCLUSION: The incidence of UTIs in pregnant women may be overestimated because of the limitations inherent to UF. Adjusting the parameters of the UF analyzer, particularly the CR(WBC)-CW-FSC-P Gain value, can significantly reduce the rate of UTI misdiagnosis in pregnant women.
Assuntos
Erros de Diagnóstico , Citometria de Fluxo , Infecções Urinárias , Humanos , Feminino , Gravidez , Infecções Urinárias/diagnóstico , Infecções Urinárias/microbiologia , Infecções Urinárias/urina , Citometria de Fluxo/métodos , Adulto , Adolescente , Adulto Jovem , Complicações Infecciosas na Gravidez/diagnóstico , Complicações Infecciosas na Gravidez/urina , Complicações Infecciosas na Gravidez/microbiologia , Urinálise/métodos , Urina/microbiologia , Urina/citologiaRESUMO
Background: The association between preterm birth and Mycoplasma species such as Mycoplasma hominis and Ureaplasma urealyticum has been extensively investigated. In a clinical setting, conventional diagnostic methods for them involve culture methods for Mycoplasma spp. and Ureaplasma spp., along with PCR tests. However, the clinical utility of these tests remains controversial, highlighting the necessity for more robust and reliable methods for identifying and understanding Mycoplasma infections. Objective: This study aimed to assess the distribution of microbiota in pregnant women with Mycoplasma hominis and Ureaplasma urealyticum infection by the comparison of conventional diagnostic methods with vaginal microbial community analysis. Study Design: This prospective case-control study involved 228 Korean pregnant women and utilized vaginal microbial community analysis, Ureaplasma/Mycoplasma culture, and 12-multiplex PCR for sexually transmitted diseases. Cross-correlation analysis in SPSS 27 compared the results of two conventional methods with vaginal microbial community analysis. R software generated box plots depicting the relative abundance of microorganisms. Network analysis was conducted using Cytoscape. Results: Positive Ureaplasma urealyticum culture findings were observed in 60.2% of patients, with 76.4% positive for Ureaplasma parvum PCR and 13.2% positive for Ureaplasma urealyticum PCR. Mycoplasma hominis culture was positive only in two patients, while Mycoplasma hominis PCR was positive in eight women. Vaginal microbial community analysis identified significant differences in relative abundances of Gardnerella species type I and Fannyhessea vaginae between the Ureaplasma urealyticum PCR positive and negative groups. Mycoplasma hominis PCR positive patients exhibited significant differences in 11 bacterial species, including Gardnerella species I and Fannyhessea vaginae. Conclusion: This study suggests that STD-PCR may be more accurate than Ureaplasma/Mycoplasma culture for the diagnosis of Mycoplasma hominis and Ureaplasma urealyticum infection. Also, the presence of Gardnerella species I and Fannyhessea vaginae implies their potential influences on Ureaplasma urealyticum and Mycoplasma hominis infections based on results of vaginal microbial community analysis. Therefore, vaginal microbial community analysis may give the more information of their pathophysiology.
Assuntos
Microbiota , Infecções por Mycoplasma , Mycoplasma hominis , Infecções por Ureaplasma , Ureaplasma urealyticum , Vagina , Humanos , Feminino , Ureaplasma urealyticum/isolamento & purificação , Ureaplasma urealyticum/genética , Mycoplasma hominis/isolamento & purificação , Gravidez , Vagina/microbiologia , Infecções por Mycoplasma/microbiologia , Infecções por Mycoplasma/diagnóstico , Infecções por Ureaplasma/microbiologia , Infecções por Ureaplasma/diagnóstico , Estudos de Casos e Controles , Adulto , Estudos Prospectivos , Complicações Infecciosas na Gravidez/microbiologia , Complicações Infecciosas na Gravidez/diagnóstico , Adulto Jovem , Reação em Cadeia da PolimeraseRESUMO
BACKGROUND: Early detection and proper management of maternal sepsis caused by carbapenem-resistant Klebsiella pneumoniae (CRKP) can significantly reduce severe complications and maternal mortality. This study aimed to describe the epidemiology, antimicrobial resistance profile, and management of carbapenem-resistant K. pneumoniae among sepsis-suspected maternal cases in Ethiopia. METHODS: A prospective cross-sectional study was conducted in five tertiary hospitals from June 2021 to December 2023. Isolation, identification, and antimicrobial susceptibility testing of the isolates were carried out following standard microbiological procedures as stated in the CLSI guidelines. Data on socio-demographics, risk factors, and management strategies were collected with structured questionnaires. Associations between variables were determined using logistic regression analysis in STATA-21. A p-value of less than 0.05 was statistically significant. RESULTS: Of the 5613 total women suspected of having maternal sepsis, 609 (10.8%) of them were infected with K. pneumoniae. The prevalence rates of MDR, XDR, and PDR K. pneumoniae strains were 93.9%, 24.3%, and 10.9%, respectively. The resistance rates for the last-resort antibiotics; amikacin, tigecycline, carbapenem, and third-generation cephalosporin were 16.4%, 29.1%, 31.9%, and 93.0%, respectively. The combination of carbapenem with tigecycline or amikacin therapy was used to manage maternal sepsis caused by cephalosporin-and carbapenem-resistant strains. Sepsis associated risk factors, including septic abortion [AOR = 5.3; 95%CI:2.2-14.4]; extended hospitalization [AOR = 3.7; 95%CI: 1.6-19.4]; dilatation and curettage [AOR = 2.2; 95%CI:1.3-13.4]; cesarean wound infection [AOR = 4.1; 95%CI:2.0-9.2]; indwelling catheterization [AOR = 2.1;95%CI: 1.4-6.2]; ICU admission [AOR = 4.3; 95%CI:2.4-11.2]; post abortion [AOR = 9.8; 95%CI:5.7-16.3], and recurrent UTI [AOR = 3.3; 95%CI: 1.6-13.2] were significantly associated with maternal sepsis caused by K. pneumoniae. CONCLUSIONS: The prevalence of maternal sepsis caused by carbapenem- resistant K. pneumoniae is high and serious attention needs to be given to combat transmission. Therefore, improving awareness, early diagnosis, IPC, integrated maternal surveillance, improved sanitation and efficient antimicrobial stewardship are crucial to combating bacterial maternal sepsis.
Assuntos
Antibacterianos , Infecções por Klebsiella , Klebsiella pneumoniae , Sepse , Humanos , Feminino , Klebsiella pneumoniae/efeitos dos fármacos , Etiópia/epidemiologia , Estudos Transversais , Infecções por Klebsiella/tratamento farmacológico , Infecções por Klebsiella/epidemiologia , Infecções por Klebsiella/microbiologia , Antibacterianos/uso terapêutico , Antibacterianos/farmacologia , Adulto , Estudos Prospectivos , Sepse/microbiologia , Sepse/tratamento farmacológico , Sepse/epidemiologia , Gravidez , Carbapenêmicos/farmacologia , Carbapenêmicos/uso terapêutico , Testes de Sensibilidade Microbiana , Adulto Jovem , Farmacorresistência Bacteriana Múltipla , Enterobacteriáceas Resistentes a Carbapenêmicos/efeitos dos fármacos , Enterobacteriáceas Resistentes a Carbapenêmicos/isolamento & purificação , Prevalência , Fatores de Risco , Mães , Complicações Infecciosas na Gravidez/microbiologia , Complicações Infecciosas na Gravidez/tratamento farmacológico , Complicações Infecciosas na Gravidez/epidemiologia , Centros de Atenção TerciáriaRESUMO
BACKGROUND: Existing guidelines for screening and treatment of asymptomatic bacteriuria (ASB) in pregnancy are based on studies completed more than 30 years ago. This evidence is characterized by a lack of consensus on the association between ASB and adverse pregnancy- and birth outcomes. AIM: This systematic review aimed to investigate the association between untreated/treated ASB (≥105 colony-forming units (cfu) of the same bacteria per ml urine in two consecutive voided cultures without any symptoms) and pregnancy outcomes (pyelonephritis, chorioamnionitis, prelabour rupture of membranes (PROM)), and birth outcomes (preterm birth (PTB), low birth weight (LBW) and small for gestational age (SGA)). The impact of the most serious pathogens E. coli and Group B streptococci (GBS) on these outcomes was also examined. METHODS: A systematic literature search was prepared according to the guideline Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA). The search was conducted in the databases Medline, Embase, and Cochrane Library, with a systematic strategy based on the PICO acronym (Population, Intervention, Comparison, Outcome). Covidence was used as a screening- and data extraction tool. Randomized trials and observational studies published between, January 01, 2005-February 10, 2023, were identified. The Cochrane Collaboration risk of bias tool 2 and the Newcastle-Ottawa Quality Assessment Scale were applied to assess the quality of the included studies. A protocol was published prior to this review, at the international prospective register of systematic reviews (PROSPERO). RESULTS: The database search yielded 3029 records. Fourteen studies were included. Untreated pregnant women with ASB had significantly increased odds of pyelonephritis. Most of the studies showed no significant association between treated ASB and pyelonephritis. In treated ASB, an increased risk of both chorioamnionitis and PROM was found. Divergent results were found in the association between ASB and PTB, as well as in the association between untreated ASB and LBW. Most of the studies showed no significant association between treated ASB and LBW. One study found no significant association between untreated/treated ASB and SGA. No studies were identified that addressed the association between ASB with E. coli/GBS and the outcomes examined. CONCLUSION: There is a need for more recent high-quality studies to investigate the association between untreated/treated ASB and pregnancy- and birth outcomes, and to assess the impact of E. coli/GBS on these outcomes.
Assuntos
Bacteriúria , Complicações Infecciosas na Gravidez , Resultado da Gravidez , Nascimento Prematuro , Humanos , Gravidez , Feminino , Bacteriúria/diagnóstico , Complicações Infecciosas na Gravidez/microbiologia , Complicações Infecciosas na Gravidez/diagnóstico , Nascimento Prematuro/microbiologia , Recém-Nascido , Ruptura Prematura de Membranas Fetais/microbiologia , Recém-Nascido de Baixo Peso , Corioamnionite/microbiologia , Infecções AssintomáticasRESUMO
BACKGROUND: Early-onset neonatal sepsis represents a diagnostic challenge, as it is a cause of neonatal mortality and morbidity. Guidelines for the prevention of group B streptococcus (GBS) infection recommend that all pregnant women must be screened for GBS carriage at the end of pregnancy, with intrapartum antibiotic prophylaxis being provided for GBS carriers. If vaginal culture is not available, GBS polymerase chain reaction (GBS-PCR) is an alternative option for this type of screening. In our unit, GBS-PCR is performed when pregnant women present to the delivery room with ongoing labor and with no results of culture GBS screening available. The main objective of this study was to evaluate the impact of the results of GBS-PCR on monitoring modifications in newborns of mothers with unknown GBS status. The secondary objectives were to confirm the feasibility of a GBS-PCR-based screening method in everyday practice and to evaluate the impact of GBS-PCR results on the modification of intrapartum antibiotic therapy in pregnant women. METHOD: A retrospective, single-center, observational study was conducted for 1 year. For dyads with GBS-PCR performed, changes concerning intrapartum antibiotic therapy and the newborn's monitoring were recorded. The feasibility of the method was evaluated by the delay between the GBS-PCR realization and the availability of the result; in addition, the number of GBS-PCR tests that could not be realized were collected. RESULTS: Overall, 60 GBS-PCR samples were tested for 60 pregnant women. Results were obtained for all samples, and the median duration to obtaining the GBS-PCR results was 70 min (60.8-87.2). These results were positive for 11 (18.3 %) women and led to monitoring modifications for two infants. In total, 27 pregnant women (45 %) had modifications in their antibiotic therapy due to the GBS-PCR results. CONCLUSION: GBS-PCR was quickly available and the results led to changes in maternal antibiotic prophylaxis and in the monitoring level of the newborns.
Assuntos
Sepse Neonatal , Reação em Cadeia da Polimerase , Complicações Infecciosas na Gravidez , Infecções Estreptocócicas , Streptococcus agalactiae , Vagina , Humanos , Feminino , Gravidez , Infecções Estreptocócicas/diagnóstico , Infecções Estreptocócicas/tratamento farmacológico , Recém-Nascido , Streptococcus agalactiae/isolamento & purificação , Streptococcus agalactiae/genética , Vagina/microbiologia , Complicações Infecciosas na Gravidez/diagnóstico , Complicações Infecciosas na Gravidez/microbiologia , Estudos Retrospectivos , Reação em Cadeia da Polimerase/métodos , Sepse Neonatal/diagnóstico , Sepse Neonatal/microbiologia , Adulto , Portador Sadio/diagnóstico , Portador Sadio/microbiologia , Antibioticoprofilaxia/métodos , Transmissão Vertical de Doenças Infecciosas/prevenção & controleRESUMO
BACKGROUND: Gastroschisis is a birth defect with the greatest risk among women <20 years of age. METHODS: Pregnant women attending the University of Utah's Maternal-Fetal Medicine Diagnostic Center between 2011 and 2017 for either their routine diagnostic ultrasound or referral were recruited (cases: pregnant women with fetal gastroschisis, n = 53 participated/57, 93%; controls: pregnant women without fetal abnormalities, n = 102 participated/120, 85%). A clinic coordinator consented and interviewed women and obtained a blood sample and prenatal medical records. We evaluated self-reported maternal characteristics, risk factors, and infections. To assess pathogen seropositivity we used Serimmune's Serum Epitope Repertoire Analysis validated 35 pathogen panels and Chlamydia trachomatis and compared seropositivity to self-report and prenatal medical record screening to assess sensitivity. RESULTS: Cases were more likely to report a younger age at sexual debut (p = <0.01), more sexual partners (p = 0.02), being unmarried (p < 0.01), changing partners between pregnancies (p = <0.01), smoking cigarettes (<0.01), and a recent sexually transmitted infection (STI) (p = 0.02). No differences were observed for self-report of illicit drug use or periconceptional urinary tract infections. Cases had a higher seropositivity for cytomegalovirus (p = 0.01). No differences were observed for herpes simplex I, II, or Epstein-Barr. Though based on small numbers, C. trachomatis seropositivity was highest in cases (17%) compared to controls (8.8%) with the highest proportion observed in case women <20 years of age (cases 33%; controls 0%). Any STI (self-report or seropositivity) was also highest among cases <20 years of age (cases 47%; controls 0%). Among C. trachomatis seropositive women, self-report and prenatal medical record sensitivity was 27.8% and 3%, respectively. CONCLUSIONS: Cases were more likely to engage in behaviors that can increase their risk of exposure to sexually transmitted pathogens. Case women <20 years of age had the highest proportion of C. trachomatis seropositivity and any STI. Prenatal medical records and self-report were inadequate to identify a recent chlamydial infection whereas, the SERA assay is a novel approach for evaluating subclinical infections that may impact the developing embryo.
Assuntos
Infecções por Chlamydia , Chlamydia trachomatis , Gastrosquise , Complicações Infecciosas na Gravidez , Autorrelato , Humanos , Feminino , Gravidez , Chlamydia trachomatis/imunologia , Adulto , Estudos de Casos e Controles , Infecções por Chlamydia/epidemiologia , Fatores de Risco , Complicações Infecciosas na Gravidez/epidemiologia , Complicações Infecciosas na Gravidez/microbiologia , Adulto JovemRESUMO
Clinical manifestations of congenital syphilis (CS) include liver disease with/without impaired liver function, identified as syphilitic hepatitis. Hepatic involvement may be dramatic; therefore, early diagnosis is crucial to provide treatment and prevent fatal outcomes. A new resurgence of CS cases has been described in recent years worldwide. We reported our experience with a case series of infants hospitalized for liver disease with a final diagnosis of CS, highlighting the wide spectrum of liver involvement, the rapid progression in cases with late diagnosis, and the pitfalls of the management of this forgotten but reemerging disease. A retrospective analysis of CS patients with hepatic presentation in the period 2008-2023 was conducted. We collected five cases (three female) with a median age of 13.8 days (range 1-84 days). In three cases, mothers were not screened for syphilis during pregnancy, and in two cases, they were seronegative in the first trimester screening. None practiced specific therapy during pregnancy. Hepatic involvement was characterized by hepatosplenomegaly, in four cases associated with cholestatic jaundice and in three cases with liver failure. Rapid plasma reagin (RPR) and Treponema pallidum hemagglutination assay (TPHA) were positive in all cases in mothers and infants. CS presented with multiorgan involvement and was fatal in one case.Conclusions: It is important to consider CS in infants with cholestasis and acute liver failure, but also in sick infants with isolated hepatomegaly. Early recognition of infants with CS is critical to identify missed cases during pregnancy and to start early treatment.
Assuntos
Hepatite , Complicações Infecciosas na Gravidez , Sífilis Congênita , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Gravidez , Hepatite/diagnóstico , Hepatite/microbiologia , Complicações Infecciosas na Gravidez/diagnóstico , Complicações Infecciosas na Gravidez/microbiologia , Estudos Retrospectivos , Sífilis Congênita/diagnóstico , Sífilis Congênita/complicaçõesRESUMO
The main aim of this study was to determine expanded sequence types (eSTs) of Ureaplasma species (U. spp.). DNA isolated from the amniotic fluid of pregnancies complicated by preterm prelabor rupture of membranes (PPROM) using an expanded multilocus sequence typing scheme. Additionally, the study sought to examine whether phylogenetic subgroups of U. spp. DNA differ with respect to maternal demographic and clinical parameters and selected aspects of short-term neonatal morbidity. This retrospective cohort study was focused on singleton pregnancies complicated by PPROM occurring between the gestational ages of 24+0 and 36+6 weeks, where amniocentesis was conducted to assess the intra-amniotic environment and the presence of U. spp. DNA in the amniotic fluid samples was confirmed. The stored aliquots of U. spp. DNA were used to assess differences in nucleotide sequences in six U. spp. genes (ftsH, rpL22, valS, thrS,ureG, and mba-np1) using the eMLST scheme. The expanded multilocus sequence typing scheme was performed in 73 samples of U. spp. DNA isolated from pregnancies complicated by PPROM. In total, 33 different U. spp. DNA eSTs were revealed, 21 (#20, 233-244, 248-251, 253, 255, 259, and 262) of which were novel. The most frequently identified eST was #41, identified in 18% (13/73) of the aliquots. Based on their genetic relationships, the U. spp. DNA was divided into two clusters and four subgroups [cluster I (U. parvum): A, 43% (n = 31); B, 15% (n = 11); and C, 26% (n = 19); cluster II (U. urealyticum): 1; 16% (n = 12)]. Cluster II had a higher rate of polymicrobial findings than cluster I (58% vs 16%; p = 0.005), while subgroup A had the highest rate of concomitant Mycoplasma hominis in the amniotic fluid samples (66%; p = 0.04). In conclusion, Ureaplasma spp. DNA obtained from PPROM consisted of 33 different eSTs of U. spp. DNA. No differences in maternal and neonatal characteristics were found among the phylogenetical subgroups of U. spp. DNA, except for a higher rate of polymicrobial amniotic fluid findings in those with U. urealyticumand the concomitant presence of M. hominis in the amniotic fluid in those with the presence of U. parvum.
Assuntos
Líquido Amniótico , Ruptura Prematura de Membranas Fetais , Tipagem de Sequências Multilocus , Infecções por Ureaplasma , Ureaplasma , Humanos , Gravidez , Feminino , Ruptura Prematura de Membranas Fetais/microbiologia , Líquido Amniótico/microbiologia , Ureaplasma/genética , Ureaplasma/isolamento & purificação , Estudos Retrospectivos , Adulto , Infecções por Ureaplasma/microbiologia , Filogenia , DNA Bacteriano/análise , DNA Bacteriano/genética , Complicações Infecciosas na Gravidez/microbiologia , Idade GestacionalRESUMO
Bacterial vaginosis is a polymicrobial syndrome characterized by the decrease of Lactobacilli and an overgrowth of facultative and anaerobic bacteria in vaginal fluid. Though it has received little attention, it has been associated with poor pregnancy outcomes, such as pre-term labor and delivery, premature rupture of membranes, low birth weight, spontaneous abortion, and postpartum infections. This study aimed to determine the prevalence of bacterial vaginosis and its associated factors among pregnant women attending antenatal care clinics from September 15 to December 14, 2021, at public hospitals in West Shoa Zone, Oromia, Ethiopia. An institutional-based cross-sectional study was conducted on 260 pregnant women, and systematic random sampling was employed to recruit the study participants. Data were collected through a structured questionnaire and the vaginal swab was collected using a sterile cotton swab. The gram staining result was interpreted using the Nugent scoring system. Data was entered into an Excel spreadsheet and exported to STATA-14 for analysis. Data were presented using tables and graphs. Binary and multivariable logistic regressions were performed. Variables with a P value ≤ 0.25 at the binary logistic regression were entered into the multivariable logistic regression. Finally, variables with a P value ≤ 0.05 were considered predictors of bacterial vaginosis and interpreted using adjusted Odds Ratios (AOR) with a 95% confidence interval (CI). A total of 260 pregnant women attending antenatal care were included in the study. The prevalence of bacterial vaginosis according to the Nugent scoring system was 22.3% (95% CI 17.4 to 27.9%). Pregnant women with other marital status were at reduced risk of bacterial vaginosis as compared with married pregnant women (AOR = 0.260, 95% CI 0.068 to 0.9995; P = 0.05). Rural residence (AOR = 2.1, 95% CI 1.05 to 4.24; P = 0.036), use of one pant per week (AOR = 2.7, 95% CI 1.04 to 7.2; P = 0.041), and use of two or more pants per week (AOR = 4.96, 95% CI 1.49 to 16.57; P = 0.009) were significantly associated with bacterial vaginosis. In the current study, a high magnitude of bacterial vaginosis was reported. Residence, marital status, and number of pants used per week were found significantly associated among pregnant women. Hence, screening for the disease should be integrated into the recommended basic laboratory investigations during antenatal visits.
Assuntos
Hospitais Públicos , Cuidado Pré-Natal , Vaginose Bacteriana , Humanos , Feminino , Vaginose Bacteriana/epidemiologia , Vaginose Bacteriana/microbiologia , Etiópia/epidemiologia , Gravidez , Adulto , Prevalência , Estudos Transversais , Adulto Jovem , Complicações Infecciosas na Gravidez/epidemiologia , Complicações Infecciosas na Gravidez/microbiologia , Fatores de Risco , Adolescente , GestantesRESUMO
Understanding the management of asymptomatic bacteriuria (ASB) and urinary tract infection (UTI) during pregnancy is important, given the prevalence of these conditions, associated risks to the mother and fetus /newborn, and potential requirement for antibiotic treatment. Screening for ASB with a urine culture is required during pregnancy, and a positive culture is treated for 5 to 7 days with culture-specific antibiotics. Recent research on non-antibiotic prevention and shortened duration of antibiotic treatment may offer a slightly different approach to ASB and UTI in pregnancy.
Assuntos
Antibacterianos , Bacteriúria , Complicações Infecciosas na Gravidez , Infecções Urinárias , Humanos , Feminino , Gravidez , Bacteriúria/tratamento farmacológico , Bacteriúria/diagnóstico , Complicações Infecciosas na Gravidez/tratamento farmacológico , Complicações Infecciosas na Gravidez/diagnóstico , Complicações Infecciosas na Gravidez/microbiologia , Infecções Urinárias/tratamento farmacológico , Infecções Urinárias/diagnóstico , Infecções Urinárias/microbiologia , Antibacterianos/uso terapêuticoRESUMO
BACKGROUND: Vulvovaginitis is common in women of reproductive age group characterized by purulent white discharge. The incidence of vulvovaginitis has risen recently due to the resistance of Candida species to commonly used antifungal agents and recurrent infections. OBJECTIVE: The study aimed to determine the prevalence, associated factors, and antifungal susceptibility patterns of vaginal candidiasis among pregnant women attending Bule Hora University Teaching Hospital. METHODS: A hospital-based cross-sectional study was conducted from May 2023 to August 2023. Using systematic random sampling, 317 pregnant women participated in the study. Sabouraud Dextrose Agar and Chromogenic Candida Differential Agar were used to isolate and identify Candida species from clinical samples. Antifungal susceptibility was performed using a modified disc diffusion method. Epi data version 4.6 was used for data entry and Statistical Packages for Social Sciences version 25 was used for statistical analysis. A P-value < 0.05 was declared statistically significant. RESULT: The prevalence of vaginal candidiasis was 26.8% (95%, CI 21.9-31.72%). History of using contraceptives (AOR = 5.03, 95%CI, 1.21-11.37), past vaginal candidiasis (AOR = 6, 95%CI, 1.61-12.92), pregnant women infected with human immunodeficiency virus (HIV) (AOR = 4.24, 95%CI, 1.23-14.14), diabetic mellitus (AOR = 2.17, 95%CI, 1.02-4.64), history of antibiotic use (AOR = 3.55, 95%CI, 1.67-12.75), pregnant women in third trimester (AOR = 8.72, 95%CI, 1.30-23.07), were the significantly associated factors for vaginal candidiasis. The study revealed that itraconazole, amphotericin B, and miconazole were the most effective antifungal drugs for all Candida isolates. CONCLUSION: The present study has identified a high prevalence of vaginal candidiasis among pregnant women. The isolated Candida species showed resistance to fluconazole, ketoconazole, and clotrimazole. Therefore, healthcare providers should increase awareness of the risks of Candida infections to reduce Candida species among pregnant women. Physicians should prescribe suitable medications based on antifungal drug test outcomes to treat pregnant women with vaginal candidiasis.
Assuntos
Antifúngicos , Candida , Candidíase Vulvovaginal , Hospitais de Ensino , Humanos , Feminino , Candidíase Vulvovaginal/epidemiologia , Candidíase Vulvovaginal/tratamento farmacológico , Candidíase Vulvovaginal/microbiologia , Gravidez , Etiópia/epidemiologia , Adulto , Prevalência , Estudos Transversais , Antifúngicos/uso terapêutico , Antifúngicos/farmacologia , Adulto Jovem , Candida/efeitos dos fármacos , Candida/isolamento & purificação , Testes de Sensibilidade Microbiana , Cuidado Pré-Natal , Complicações Infecciosas na Gravidez/epidemiologia , Complicações Infecciosas na Gravidez/microbiologia , Complicações Infecciosas na Gravidez/tratamento farmacológico , Fatores de Risco , Farmacorresistência Fúngica , Adolescente , Miconazol/uso terapêutico , Miconazol/farmacologiaRESUMO
BACKGROUND: Understanding the aetiological organisms causing maternal infections is crucial to inform antibiotic treatment guidelines, but such data are scarce from Sub-Saharan Africa (SSA). We performed this systematic review and meta-analysis to address this gap. METHODS: Microbiologically confirmed maternal infection data were collected from PubMed, Embase, and African Journals online databases. The search strategy combined terms related to bacterial infection, pregnancy, postnatal period, observational studies, SSA. Exclusion criteria included colonization, asymptomatic infection, and screening studies. Pooled proportions for bacterial isolates and antimicrobial resistance (AMR) were calculated. Quality and completeness of reporting were assessed using the Newcastle-Ottawa and STROBE checklists. FINDINGS: We included 14 papers comprising data from 2,575 women from four sources (blood, urine, surgical wound and endocervical). Mixed-growth was commonly reported at 17% (95% CI: 12%-23%), E. coli from 11%(CI:10%-12%), S. aureus from 5%(CI: 5%-6%), Klebsiella spp. at 5%(CI: 4%- 5%) and Streptococcus spp. at 2%(CI: 1%-2%). We observed intra-sample and inter-sample heterogeneity between 88-92% in all meta-analyses. AMR rates were between 19% -77%, the highest with first-line beta-lactam antibiotics. Convenience sampling, and limited reporting of laboratory techniques were areas of concern. INTERPRETATION: We provide a comprehensive summary of microbial aetiology of maternal infections in SSA and demonstrate the paucity of data available for this region. We flag the need to review the current local and international empirical treatment guidelines for maternal bacterial infections in SSA because there is high prevalence of AMR among common causative bacteria. FUNDING: This research was supported by the NIHR-Professorship/NIHR300808 and the Wellcome-Strategic-award /206545/Z/17/Z. TRIAL REGISTRATION: Prospero ID CRD42021238515.
Assuntos
Antibacterianos , Infecções Bacterianas , Farmacorresistência Bacteriana , Complicações Infecciosas na Gravidez , Humanos , África Subsaariana/epidemiologia , Feminino , Gravidez , Antibacterianos/farmacologia , Antibacterianos/uso terapêutico , Complicações Infecciosas na Gravidez/microbiologia , Complicações Infecciosas na Gravidez/tratamento farmacológico , Complicações Infecciosas na Gravidez/epidemiologia , Infecções Bacterianas/microbiologia , Infecções Bacterianas/tratamento farmacológico , Infecções Bacterianas/epidemiologia , Bactérias/efeitos dos fármacos , Bactérias/isolamento & purificação , Bactérias/classificaçãoRESUMO
Group A-streptococcal (GAS) infection can lead to various clinical presentations and is fulminant when it reaches the deep tissues, leading to a high morbidity and mortality. The severity of postpartum GAS infections is widely known. In this case report we describe the course of disease in a pregnant patient with GAS toxic shock syndrome with initial complaints of abdominal pain, diarrhea and fetal demise at first presentation. Within 10 hours this patient died. It is important to stay vigilant for a fulminant GAS infection in pregnant patients, to recognize it quickly and treat it adequately.