preterm neonates
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Diagnostics ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 214
Author(s):  
Dimitra-Ifigeneia Matara ◽  
Abraham Pouliakis ◽  
Theodoros Xanthos ◽  
Rozeta Sokou ◽  
Georgios Kafalidis ◽  
...  

The microbiome is vital for the proper function of the gastrointestinal tract (GIT) and the maintenance of overall wellbeing. Gut ischemia may lead to disruption of the intestinal mucosal barrier, resulting in bacterial translocation. In this systematic review, according to PRISMA (Preferred Reporting Items for Systematic Review and Meta-Analysis) guidelines, we constructed a search query using the PICOT (Patient, Intervention, Comparison, Outcome, Time) framework. Eligible studies reported in PubMed, up to April 2021 were selected, from which, 57 publications’ data were included. According to these, escape of intraluminal potentially harmful factors into the systemic circulation and their transmission to distant organs and tissues, in utero, at birth, or immediately after, can be caused by reduced blood oxygenation. Various factors are involved in this situation. The GIT is a target organ, with high sensitivity to ischemia–hypoxia, and even short periods of ischemia may cause significant local tissue damage. Fetal hypoxia and perinatal asphyxia reduce bowel motility, especially in preterm neonates. Despite the fact that microbiome arouse the interest of scientists in recent decades, the pathophysiologic patterns which mediate in perinatal hypoxia/asphyxia conditions and gut function have not yet been well understood.


2022 ◽  
Vol 12 (1) ◽  
Author(s):  
Gdiom Gebreheat ◽  
Hirut Teame

AbstractThe purpose of this study was to assess the predictors of preterm neonatal survival in a neonatal intensive care unit (NICU). A cohort study was conducted retrospectively on 1017 preterm neonates using medical records from January 2014 through December 2018. The Kaplan–Meier model was used to estimate mean survival time and cumulative survival probability. Furthermore, Multivariable Cox regression analysis was run to identify predictors of preterm neonatal mortality using an adjusted hazard ratio (AHR) at P < 0.05 and 95% confidence interval (CI). During the follow-up period in the NICU, the mean survival time of the preterm neonates was 47 (95% CI (43.19–48.95)) days. Compound presentation (AHR = 2.29, 95% CI (1.23–4.24)), perinatal asphyxia (AHR = 2.83, 95% CI (1.75–4.58)), respiratory distress syndrome (AHR = 3.01, 95% CI (1.80–5.01)), 1-min APGAR score (AHR = 0.78, 95% CI (0.62–0.98)), and birth weight (AHR = 0.32, 95% CI (0.17–0.58)) were found to be significant predictors of time to preterm neonatal mortality. In conclusion, the survival probability of preterm neonates showed a considerable decrement in the first week of life. Fetal presentation, gestational age, birth weight, 1-min APGAR score, perinatal asphyxia and respiratory distress syndrome found as independent predictors of preterm neonatal mortality.


2022 ◽  
Author(s):  
Yanping Xu ◽  
Yeqing Huang ◽  
Zhen Shen ◽  
Liping Shi

Abstract Bronchopulmonary dysplasia (BPD) is chronic lung disease of prematurity and associated with substantial long-term disabilities. To characterize and compare the nasal swabs microbiome of early stage in premature infants and determine whether microbial diversity or composition in the airway associated with BPD disease. We performed a prospective observational cohort design. Preterm neonates less than 32 weeks of gestation were recruited from NICU, Children's Hospital, Zhejiang University School of Medicine from 2019 to 2020. Sterile foam swabs were collected from anterior nares at 1 and 3 weeks of postnatal age. We used PCR amplification and 16S rDNA sequencing. Neonatal demographic data including gestational age, birth weight, medication administration history were recorded. A total of 98 nasal swabs samples were collected from 54 preterm infants, 13 developed BPD infants and 41 control infants were finally involved in the study. Birth weights ranged from 700 to 2,050 g. Gestational age ranged from 25 2/7to 31 6/7. We found increased in the expression of Prevotella, Marinomonas, Enterobacteriaceae, Weissella, Selenomonas, Oribacterium, Nubsella and Antricoccus in BPD group at two time points. Prevotella was correlated with the severity of BPD (Spearman r=0.361, P=0.000). Given possible roles for noninvasive upper airway microbiota in BPD pathobiology, the nasal microbiome in BPD is a compelling area of research to continue to expand.


Cells ◽  
2022 ◽  
Vol 11 (2) ◽  
pp. 192
Author(s):  
Moritz Lenz ◽  
Thomas Maiberger ◽  
Lina Armbrust ◽  
Antonia Kiwit ◽  
Axel Von der Wense ◽  
...  

Introduction: An early and accurate diagnosis of early onset neonatal sepsis (EONS) and late onset neonatal sepsis (LONS) is essential to improve the outcome of this devastating conditions. Especially, preterm infants are at risk. Reliable biomarkers are rare, clinical decision-making depends on clinical appearance and multiple laboratory findings. Markers of NET formation and NET turnover might improve diagnostic precision. Aim of this study was to evaluate the diagnostic value of NETs in sepsis diagnosis in neonatal preterm infants. Methods: Plasma samples of neonatal preterm infants with suspected sepsis were collected. Blood samples were assayed for markers of NET formation and NET turnover: cfDNA, DNase1, nucleosome, NE, and H3Cit. All clinical findings, values of laboratory markers, and epidemiological characteristics were collected retrospectively. Two subpopulations were created to divide EONS from LONS. EMA sepsis criteria for neonatal sepsis were used to generate a sepsis group (EMA positive) and a control group (EMA negative). Results: A total of 31 preterm neonates with suspected sepsis were included. Out of these, nine patients met the criteria for sepsis according to EMA. Regarding early onset neonatal sepsis (3 EONS vs. 10 controls), cfDNA, DNase I, nucleosome, and CRP were elevated significantly. H3Cit and NE did not show any significant elevations. In the late onset sepsis collective (6 LONS vs. 12 controls), cfDNA, DNase I, and CRP differed significantly compared to control group.


2022 ◽  
pp. 097321792110653
Author(s):  
Daljit Saini ◽  
Harpreet Kaur ◽  
Manisha Prajapati ◽  
Prabhjot Jot Kaur ◽  
Shivani Saini ◽  
...  

Objective: To assess the survival rate, readmission rate, its causes, and outcomes among the preterm neonates that were discharged from the neonatal units of a tertiary care center of northern India. Methods: A retrospective study was conducted in neonatal units of a tertiary care center in northern India. Preterm neonates (<=35 weeks) were admitted in these neonatal units, and their parents were included as participants by total enumeration sampling between July–December 2018. The data was collected from the admission records for the last 6 months from neonatal intensive care unit and from the parents whose babies were discharged. The parents were telephonically interviewed regarding readmissions and mortality. The data relating to the sociodemographic profile of parents, clinical profile of preterm neonates, readmission profile of discharged preterm neonates, and risk predictors for readmission of preterm neonates was collected. Results: A total of 249 preterm neonates were admitted in 6 months. It was found that the survival rate was 197 (79.1%); the readmission rate was 23 (16.4%). Out of total readmitted, majority 22 (95.7) had low maternal education as risk predictor of readmissions, followed by habitats of rural area. Conclusion: Preterm neonates are at more risk for getting multiple readmissions as compared to other neonates. Thus, there is a need to find out the strategies to overcome the burden of readmissions.


2022 ◽  
Vol 22 (1) ◽  
Author(s):  
Yong Yang ◽  
Wenkang Yan ◽  
Minyi Ruan ◽  
Lan Zhang ◽  
Jinzhen Su ◽  
...  

Abstract Background Lung recruitment is a maneuver used to decrease the length of intubation in preterm neonates. This study aimed to compare the therapeutic efficacy of lung recruitment plus intubation-surfactant-extubation (INSURE) procedure and INSURE alone for the preterm neonates with respiratory distress syndrome. Methods From 2017 to 2019, 184 preterm neonates (gestational age 24–32 weeks) with respiratory distress syndrome were enrolled and randomized into the lung recruitment group receiving lung recruitment (25 cm H2O, 15 s) plus INSURE and the control group receiving INSURE only. The primary outcome was the need for mechanical ventilation (MV) within 72 h after extubation. The secondary outcomes included duration of MV, noninvasive ventilation, total oxygen therapy, hospitalization time, and complications. Results Compared to the control group, the lung recruitment group had a significantly lower proportion of preterm neonates requiring MV within 72 h after extubation (23% vs. 38%, P = 0.025) and pulmonary surfactant administration, as well as a shorter MV duration. There was no significant difference in the incidences of complications (all P > 0.05) and in-hospital mortality (2% vs. 4%, P = 0.4) between the lung recruitment group and control group. Multivariate logistic regression analysis demonstrated that the control group had a 2.17-time higher risk of requiring MV than the lung recruitment group (AOR: 2.17, 95% CI: 1.13–4.18; P = 0.021). Compared with infants with a normotensive mother, infants with a hypertensive mother have a 2.41-time higher risk of requiring MV (AOR: 2.41, 95% CI: 1.15–5.05; P = 0.020). Conclusion Lung recruitment plus INSURE can reduce the need for MV within 72 h after extubation and did not increase the incidence of complications and mortality. Trial registration Chinese Clinical Trial Registry ChiCTR1800020125, retrospectively registered on December 15, 2018.


Author(s):  
Alona Bin-Nun ◽  
Irina Shchors ◽  
Rawan Abu-Omar ◽  
Yair Kasirer ◽  
Francis Mimouni ◽  
...  

The SFR (Sp02/Fi02 ratio) offers a continuous, non-invasive reflection of pulmonary function regardless of whether the baby is ventilated or breathing spontaneously. We hypothesized that significant PDA shunting would impair pulmonary oxygen diffusion, in turn, reflected by decreased SFR; and that early PDA related decreases in SFR will predict subsequent chronic lung disease (CLD). Methods: We retrospectively examined records from preterm neonates <30 weeks gestational age. Ductal shunting was graded for severity by first week echocardiogram. SFR was calculated as SpO2/Fi02 and recorded on day 7 of life and at 36 weeks postmenstrual age (PMA). Results: We studied 104 infants: 65 with closed duct; 17 with hemodynamically insignificant PDA and 22 with hemodynamically significant (hsPDAs). CLD developed in 9 (14%) of those with closed ducts; 6 (35%) of those with hisPDA; and in 12 (55%) of those with hsPDA (p=0.005). Babies with hsPDA had significantly lower SFR values at both time points. SFRs in babies with hisPDA were decreased at 1 week postnatally, but were similar to those of babies with closed ducts at 36 weeks. SFR at 36 wks. was decreased only in infants with hsPDA [[467[461,467] vs. 467[413,471] vs. 369[262,436] respectively; p=0.000148]. Using ROC curve analysis, week 1 SFR was strongly associated with hsPDA (AUC=0.770; p<0.0001) and highly predictive (AUC=0.801; p<0.0001) of CLD at 36 weeks PMA. Conclusion: Early decreases in SFR reflect both the acute and chronic pulmonary impact of PDA shunting, possibly providing the missing link supporting an association between hemodynamically significant PDA and subsequent CLD.


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