Bacteroides and Hafnia Infections Associated With Chorioamnionitis and Preterm Birth

Kaakoush,

doi:10.14740/jcgo244e

Cited by 5 publications

(6 citation statements)

References 23 publications

(29 reference statements)

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“…In the majority of cases, the pathogen derives from urinary tract infection, our experience of epidemiologic changes in the etiology of PPROM means that a more complete diagnostic procedure must be followed, with wider analytic studies, adapting available diagnostic procedures to clinical needs. New culture-independent tools sometimes yield positive results even when vaginal and endocervical cultures are negative [9][10][11][12]. These new techniques can help to detect a possible unusual bacterial infection when vaginal and endocervical cultures are negative in cases of chorioamnionitis, preterm birth, or PPROM.…”

Section: Discussionmentioning

confidence: 99%

A Case Study on 3 Weeks Premature Rupture of Membranes Caused by Oropharyngeal Microbiota

Alkasseh

Alkhatib

2021

Innovare J H Sci

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Premature rupture of membrane (PROM) is produced when amniotic membranes tear before labor onset and is recorded in around 8 % of full-term gestations. Preterm PROMs (PPROMs) take place before the 37th week of gestation, with an incidence of 2–4 % of pregnancies, and it is associated with higher maternal and perinatal morbidity and mortality, mainly related to infectious processes and prematurity. Among maternal complications, which include postpartum infection, premature placental detachment, and maternal sepsis, we highlight clinical chorioamnionitis for its incidence and severity. Of decreasing frequency, perinatal complications include respiratory distress, neonatal sepsis, intraventricular hemorrhage, necrotizing enterocolitis, and neurological lesions. Full-term PROM frequently has a physiological cause and is a consequence of uterine contractions; however, PPROM usually has a multifactorial etiology that is often unknown, although the most frequently reported cause is an infection, observed in up to 60 % of cases. Therefore, the etiology of PPROM, although probably infectious, remains unknown in most cases. The obstetric approach varies as a function of gestational age, actively inducing the pregnancy in full-term PROM but performing an overall evaluation of maternal-fetal status in PPROM. In the latter situation, an assessment is made of the relative risks and benefits of a wait-and-see attitude versus pregnancy induction, considering signs of infection and/or prematurity, and ordering antibiotic treatment when PPROM is diagnosed . Multiple combinations of antimicrobial drugs have been proposed and better perinatal and maternal outcomes have been reported for the prophylactic administration of some new combinations. This study describes a case of PPROM caused by urinary tract infection.

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Section: Discussionmentioning

confidence: 99%

A Case Study on 3 Weeks Premature Rupture of Membranes Caused by Oropharyngeal Microbiota

Alkasseh

Alkhatib

2021

Innovare J H Sci

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“…Low abundance in preterms [33] Atopobium High relative abundance of Atopobium vaginae at the midtrimester was highly predictive of preterm birth [34] Bacteroides Abundance reduction in Bacteroides in women who delivered preterm [35,36]…”

Section: Aerococcusmentioning

confidence: 99%

“…CorrZIDF Acinetobacter Acinetobacter infection in adverse pregnancy and perinatal outcomes [31,32] Aerococcus Low abundance in preterms [33] Atopobium High relative abundance of Atopobium vaginae at the midtrimester was highly predictive of preterm birth [34] Bacteroides Abundance reduction in Bacteroides in women who delivered preterm [35,36] Brevibacterium Occasionally found in the placenta, considered as contaminants [37] Campylobacter Associated with an increased risk of spontaneous abortion, stillbirth, and preterm delivery [38] Fusobacterium Associated with preterm birth and has been isolated from the amniotic fluid, placenta, and chorioamnionic membranes of women delivering prematurely [39] Mobiluncus For women with a prior preterm delivery, high level of Mobiluncus significantly indicate a spontaneous preterm delivery [40] Oligella Mostly found as a commensal organism of the human genitourinary tract, which is also the main infection site [41] Peptostreptococcus Pregnant women with Bacterial vaginosis including Peptostreptococcus and other bacteria have increased risk of preterm labor and preterm premature rupture of membranes.…”

Section: Genus Relevance Referencementioning

confidence: 99%

A Distribution-Free Model for Longitudinal Metagenomic Count Data

Luo

Liu

Chen

et al. 2022

Genes

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Longitudinal metagenomics has been widely studied in the recent decade to provide valuable insight for understanding microbial dynamics. The correlation within each subject can be observed across repeated measurements. However, previous methods that assume independent correlation may suffer from incorrect inferences. In addition, methods that do account for intra-sample correlation may not be applicable for count data. We proposed a distribution-free approach, namely CorrZIDF, which extends the current method to model correlated zero-inflated metagenomic count data, offering a powerful and accurate solution for detecting significance features. This method can handle different working correlation structures without specifying each margin distribution of the count data. Through simulation studies, we have shown the robustness of CorrZIDF when selecting a working correlation structure for repeated measures studies to enhance the efficiency of estimation. We also compared four methods using two real datasets, and the new proposed method identified more unique features that were reported previously on the relevant research.

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“…It is part of the normal microbiota of animals (14). In humans, it behaves as an opportunistic pathogen (15), but it is a rare cause of infection in humans and animals (15)(16)(17). However, in veterinary medicine, it has been reported in equine abortion (18), as a secondary infection in a cat with a nasal tumor (19), and was also isolated from the wound of a dog (20).…”

Section: Introductionmentioning

confidence: 99%

Hafnia paralvei ISOLATED FROM AN EMPHYSEMATOUS PYOMETRA IN A BITCH

Rodríguez-Alarcón

Leyva-Varela²,

García‐Herrera³

et al. 2019

SVR

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We report the case of a 9-year-old female Labrador retriever, presented to the Veterinary Teaching Hospital with a history of bloody/purulent and malodourous vulvar discharge, decreased appetite and progressive abdominal enlargement for about 20 days. Clinical examination showed a distended and painful abdomen and tympanic sounds on percussion. The patient also presented systemic inflammatory response syndrome (SIRS) and a leukemoid reaction with leukocyte count of 77.9 x 10 9 /L due to 62.32 x 10 9 /L lymphocytes. The abdominal radiography showed distended tubular structures occupying most of the abdomen; dorsal displacement of the colon in the left-right lateral projection was also found. The ultrasonographic study also revealed tubular structures in the mid-abdomen that contained flowing fluid presenting mixed echogenicity and hyperechoic particles in suspension. The exploratory celiotomy showed that the uterine horns were distended and contained a mixture of gas and liquid, hence an ovariohysterectomy was performed. The uterine fluid was collected with aseptic technique into a syringe and submitted to the clinical pathology laboratory for aerobic and anaerobic culture and antibiotic sensitivity. Hafnia alvei (now classified as Hafnia paralvei) was identified as the causative bacterial agent. Pyometra caused by gas-producing bacteria is a rare condition and is known as emphysematous pyometra. There are only six reports in the literature of this condition in bitches. A wide range of vaginal bacteria has been found in dogs with pyometra, but to our knowledge this is the first report of emphysematous pyometra caused by Hafnia paralvei in dogs.

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Bacteroides and Hafnia Infections Associated With Chorioamnionitis and Preterm Birth

Cited by 5 publications

References 23 publications

A Case Study on 3 Weeks Premature Rupture of Membranes Caused by Oropharyngeal Microbiota

A Case Study on 3 Weeks Premature Rupture of Membranes Caused by Oropharyngeal Microbiota

A Distribution-Free Model for Longitudinal Metagenomic Count Data

Hafnia paralvei ISOLATED FROM AN EMPHYSEMATOUS PYOMETRA IN A BITCH

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