scholarly journals The Nasal Microbiome of Predicting Bronchopulmonary Dysplasia in Preterm Infants

2022 ◽  
Author(s):  
Yanping Xu ◽  
Yeqing Huang ◽  
Zhen Shen ◽  
Liping Shi
Keyword(s):  
Preterm Infants ◽  
Bronchopulmonary Dysplasia ◽  
Gestational Age ◽  
Early Stage ◽  
Demographic Data ◽  
Pcr Amplification ◽  
Medication Administration ◽  
Preterm Neonates ◽  
Rdna Sequencing ◽  
Nasal Swabs

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.

Palivizumab efficacy in preterm infants with gestational age ≤30 weeks without bronchopulmonary dysplasia

2007 ◽  
Vol 42 (3) ◽  
pp. 189-192 ◽  
Author(s):  
Marianne Grimaldi ◽  
Béatrice Gouyon ◽  
Paul Sagot ◽  
Catherine Quantin ◽  
Frédéric Huet ◽  
...  
Keyword(s):  
Preterm Infants ◽  
Bronchopulmonary Dysplasia ◽  
Gestational Age

scholarly journals Late hyponatremia: its risk factors in preterm infants and short-term outcome

2021 ◽  
Vol 43 (5) ◽  
pp. 434-443
Author(s):  
Manizheh Gharehbaghi ◽  
Sadollah Yegane Dust ◽  
Elmira Naseri
Keyword(s):  
Risk Factors ◽  
Birth Weight ◽  
Low Birth Weight ◽  
Preterm Infants ◽  
Bronchopulmonary Dysplasia ◽  
Gestational Age ◽  
Short Term ◽  
Term Outcome ◽  
Short Term Outcome ◽  
Osteopenia Of Prematurity

Background. Prematurity is one of the major health problems and common causes of neonatal mortality. One of the complications of premature infants is hyponatremia. The effect of hyponatremia on the prognosis of preterm infants has not been well studied. This study aimed to evaluate infants with late hyponatremia, its risk factors, and prognosis. Methods. This descriptive analytical study reviewed preterm infants (<34 weeks) admitted to Al-Zahra or Children’s Hospital in Tabriz for one year (2019). Neonates diagnosed with hyponatremia after the second week were identified and evaluated for risk factors and short-term outcome. Results. A total of 186 neonates were studied. The mean gestational age of the neonates was 30 weeks (first and third quarters = 29-32 weeks). 101 (54.3%) infants were male. The route of delivery was the cesarean section in 60.7% of cases. Late hyponatremia was present in 50 (26.8 %) infants. Gestational age and birth weight were significantly lower in infants with hyponatremia than in the control group. Multivariate analysis showed that low birth weight, the use of prenatal steroids, and inappropriate weight for gestational age status independently predict the incidence of late hyponatremia. There was a significant relationship between the presence of prolonged late hyponatremia (over 7 days) and bronchopulmonary dysplasia and osteopenia of prematurity. However, no significant association was found between the presence of prolonged late hyponatremia in preterm infants with the length of hospital stay and in-hospital mortality. Conclusion. Based on the findings of this study, low birth weight, prenatal steroid use, and lack of appropriate weight for gestational age were risk factors for late hyponatremia in preterm infants. Prolonged hyponatremia is associated with bronchopulmonary dysplasia and osteopenia of prematurity

scholarly journals CYP2C9*2 is associated with indomethacin treatment failure for patent ductus arteriosus

2019 ◽  
Vol 20 (13) ◽  
pp. 939-946
Author(s):  
Sydney R Rooney ◽  
Elaine L Shelton ◽  
Ida Aka ◽  
Christian M Shaffer ◽  
Ronald I Clyman ◽  
...  
Keyword(s):  
Patent Ductus Arteriosus ◽  
Treatment Failure ◽  
Preterm Infants ◽  
Gestational Age ◽  
Genetic Factors ◽  
Ductus Arteriosus ◽  
Preterm Neonates ◽  
Multicenter Cohort Study ◽  
Patent Ductus ◽  
Indomethacin Treatment

Aims: To identify clinical andgenetic factors associated with indomethacin treatment failure in preterm neonates with patent ductus arteriosus (PDA). Patients & Methods: This is a multicenter cohort study of 144 preterm infants (22–32 weeks gestational age) at three centers who received at least one treatment course of indomethacin for PDA. Indomethacin failure was defined as requiring subsequent surgical intervention. Results: In multivariate analysis, gestational age (AOR 0.76, 95% CI 0.60–0.96), surfactant use (AOR 9.77, 95% CI 1.15–83.26), and CYP2C9*2 (AOR 3.74; 95% CI 1.34–10.44) were each associated with indomethacin failure. Conclusion: Age, surfactant use, and CYP2C9*2 influence indomethacin treatment outcome in preterm infants with PDA. This combination of clinical and genetic factors may facilitate targeted indomethacin use for PDA.

Epidemiology of Inguinal Hernia in Preterm Neonates

PEDIATRICS ◽  
1986 ◽  
Vol 77 (2) ◽  
pp. 246-247 ◽  
Author(s):  
KEITH J. PEEVY ◽  
FELICITY A. SPEED ◽  
CHARLES J. HOFF
Keyword(s):  
Inguinal Hernia ◽  
Birth Weight ◽  
Preterm Infants ◽  
Gestational Age ◽  
Growth Retardation ◽  
Intrauterine Growth Retardation ◽  
Preterm Neonates ◽  
Intrauterine Growth ◽  
Inguinal Hernias

We have studied the epidemiology of inguinal hernias in preterm infants. Inguinal hernias occur with increased frequency in infants ≤32 weeks' gestational age or ≤1,250 g birth weight. Among infants ≤32 weeks' gestational age, intrauterine growth retardation significantly increases the risk for development of inguinal hernias, especially in male infants. Our data demonstrate a previously unrecognized association between neonatal inguinal hernia and intrauterine growth retardation.

ACCURACY OF TRANSCUTANEOUS BILIRUBIN MEASUREMENTS DURING PHOTOTHERAPY IN JAUNDICED PRETERM NEONATES

2021 ◽  
pp. 7-9
Author(s):  
Rajveer Singh Yadav ◽  
Nikita Singh ◽  
Gaurav Agrawal ◽  
Madhu Mathur ◽  
Munish Kumar Kakkar
Keyword(s):  
Risk Factors ◽  
Preterm Infants ◽  
Gestational Age ◽  
Serum Bilirubin ◽  
Preterm Neonates ◽  
Total Serum ◽  
Preterm Baby ◽  
Transcutaneous Bilirubin ◽  
Non Invasive ◽  
Invasive Method

Aim: It is very difcult to nd veins and also seems unethical to withdraw blood daily in a preterm baby for the monitoring of jaundice during the course of phototherapy. So it becomes essential that we nd out a method which is non-invasive and at the same time accurate to assess jaundice. Jaundice is the most common morbidity in the rst week of life, reported in 60% of term, 80% of preterm (1, 2) & also being the commonest cause of readmission. Materials and Method: Study was planned to assess the accuracy of transcutaneous bilirubin in comparison to total serum bilirubin in premature jaundiced neonates of gestational age (28-32 weeks v/s 32-37 weeks) during phototherapy. Result: Study has demonstrated reliability of TCB measurements in preterm infants during phototherapy. Gestational age, comorbidities and risk factors for jaundice did not inuence the correlation. Summary: This study reveals that Transcutaneous Bilirubin Estimation by bilirubin meter can be used as a non-invasive method for monitoring of jaundice treatment during phototherapy in preterm neonates.

scholarly journals Necrotizing Enterocolitis in Moderate Preterm Infants

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Jayasree Nair ◽  
Rachel Longendyke ◽  
Satyan Lakshminrusimha
Keyword(s):  
Preterm Infants ◽  
Necrotizing Enterocolitis ◽  
Gestational Age ◽  
Age At Onset ◽  
Late Preterm ◽  
Preterm Neonates ◽  
Term Infants ◽  
Hypertensive Disorders ◽  
Extremely Preterm ◽  
Perinatal Center

Necrotizing enterocolitis (NEC) is a devastating morbidity usually seen in preterm infants, with extremely preterm neonates (EPT ≤28 weeks) considered at highest risk. Moderately preterm infants (MPT 28–34 weeks) constitute a large percentage of NICU admissions. In our retrospective data analysis of NEC in a single regional perinatal center, NEC was observed in 10% of extremely EPT and 7% of MPT, but only 0.7% of late-preterm/term admissions. There was an inverse relationship between postnatal age at onset of NEC and gestational age at birth. Among MPT infants with NEC, maternal hypertensive disorders (29%) and small for gestational age (SGA-15%) were more common than in EPT infants (11.6 and 4.6%, resp.). Congenital gastrointestinal anomalies were common among late preterm/term infants with NEC. SGA MPT infants born to mothers with hypertensive disorders are particularly at risk and should be closely monitored for signs of NEC. Identifying risk factors specific to each gestational age may help clinicians to tailor interventions to prevent NEC.

A Lung Ultrasound Severity Score Predicts Chronic Lung Disease in Preterm Infants

2019 ◽  
Vol 36 (13) ◽  
pp. 1357-1361 ◽  
Author(s):  
Mohamed Abdelmawla ◽  
Deepak Louis ◽  
Michael Narvey ◽  
Yasser Elsayed
Keyword(s):  
Lung Disease ◽  
Preterm Infants ◽  
Sensitivity And Specificity ◽  
Gestational Age ◽  
Chronic Lung Disease ◽  
Severity Score ◽  
Lung Ultrasound ◽  
Characteristic Curve ◽  
Preterm Neonates ◽  
Predictive Values

Objective To test the hypothesis that a lung ultrasound severity score (LUSsc) can predict the development of chronic lung disease (CLD) in preterm neonates. Study Design Preterm infants <30 weeks' gestational age were enrolled in this study. Lung ultrasound (LUS) was performed between 1 and 9 postnatal weeks. All ultrasound studies were done assessing three lung zones on each lung. Each zone was given a score between 0 and 3. A receiver operating characteristic curve was constructed to assess the ability of LUSsc to predict CLD. Results We studied 27 infants at a median (interquartile range [IQR]) gestational age and birth weight of 26 weeks (25–29) and 780 g (530–1,045), respectively. Median (IQR) postnatal age at the time of LUS studies was 5 (2–8) weeks. Fourteen infants who developed CLD underwent 34 studies. Thirteen infants without CLD underwent 30 studies. Those who developed CLD had a higher LUSsc than those who did not (median [IQR] of scores: 9 [6–12] vs. 3 [1–4], p < 0.0001). An LUSsc cutoff of 6 has a sensitivity and specificity of 76 and 97% and positive and negative predictive values of 95 and 82%, respectively. Adding gestational age < 27 weeks improved sensitivity and specificity to 86 and 98% and positive and negative predictive values to 97 and 88%. Conclusion LUSsc between 2 and 8 weeks can predict development of CLD in preterm neonates.

scholarly journals Cord Blood Levels of IL-6, IL-8 and IL-10 May Be Early Predictors of Bronchopulmonary Dysplasia in Preterm Newborns Small for Gestational Age

2012 ◽  
Vol 33 (1) ◽  
pp. 51-60 ◽  
Author(s):  
Gustavo Rocha ◽  
Elisa Proença ◽  
Ana Guedes ◽  
Carmen Carvalho ◽  
Augusta Areias ◽  
...  
Keyword(s):  
Cord Blood ◽  
Bronchopulmonary Dysplasia ◽  
Gestational Age ◽  
Small For Gestational Age ◽  
Preterm Neonates ◽  
Blood Levels ◽  
Early Predictors ◽  
Blood Cytokines ◽  
Uterine Growth ◽  
Preterm Newborns

Introduction: Various cytokines have been associated to the occurrence of bronchopulmonary dysplasia (BPD) in preterm neonates.AIM: To establish an association between cord blood cytokines and BPD, so that they could be used, in clinical practice, as early markers of BPD.Material and methods: Preterms less than 30 weeks gestational age, were analysed by ELISA microassay for venous cord blood IL-1β, IL-6, IL-8, TNF-αand IL-10, and compared between the BPD and non-BPD groups.Results: One hundred and fifty neonates completed the study; 31 (21%) small for gestational age (SGA); 16 were deceased before 28 days of life; 36 developed mild BPD and 20 developed moderate/severe BPD. Elevated cord blood IL-8 was associated with death or moderate/severe BPD. SGA patients with moderate/severe BPD presented higher cord blood values of IL-8, lower IL-6 and IL-10 when compared with SGA without moderate/severe BPD; and higher IL-8 levels when compared with patients without moderate/severe BPD.Conclusion: These results support an association between cord blood IL-8 and moderate/severe BPD, independently of the intra-uterine growth; and the association of cord blood IL-6 and IL-10 and moderate/severe BPD in SGA preterm newborns.

scholarly journals The Correlation Between Bronchopulmonary Dysplasia and Platelet Metabolism in Preterm Infants

2021 ◽  
Vol 9 ◽  
Author(s):  
Longli Yan ◽  
Zhuxiao Ren ◽  
Jianlan Wang ◽  
Xin Xia ◽  
Liling Yang ◽  
...  
Keyword(s):  
Platelet Count ◽  
Birth Weight ◽  
Preterm Infants ◽  
Bronchopulmonary Dysplasia ◽  
Premature Infants ◽  
Gestational Age ◽  
Admission Diagnosis ◽  
Control Group ◽  
The Relationship

Background: Platelets play an important role in the formation of pulmonary blood vessels, and thrombocytopenia is common in patients with pulmonary diseases. However, a few studies have reported on the role of platelets in bronchopulmonary dysplasia.Objective: The objective of the study was to explore the relationship between platelet metabolism and bronchopulmonary dysplasia in premature infants.Methods: A prospective case-control study was performed in a cohort of premature infants (born with a gestational age &lt;32 weeks and a birth weight &lt;1,500 g) from June 1, 2017 to June 1, 2018. Subjects were stratified into two groups according to the diagnostic of bronchopulmonary dysplasia: with bronchopulmonary dysplasia (BPD group) and without bronchopulmonary dysplasia (control group). Platelet count, circulating megakaryocyte count (MK), platelet-activating markers (CD62P and CD63), and thrombopoietin (TPO) were recorded and compared in two groups 28 days after birth; then serial thrombopoietin levels and concomitant platelet counts were measured in infants with BPD.Results: A total of 252 premature infants were included in this study. Forty-eight premature infants developed BPD, 48 premature infants without BPD in the control group who were matched against the study infants for gestational age, birth weight, and admission diagnosis at the age of postnatal day 28. Compared with the controls, infants with BPD had significantly lower peripheral platelet count [BPD vs. controls: 180.3 (24.2) × 109/L vs. 345.6 (28.5) × 109/L, p = 0.001]. Circulating MK count in the BPD group was significantly more abundant than that in the control group [BPD vs. controls: 30.7 (4.5)/ml vs. 13.3 (2.6)/ml, p = 0.025]. The level of CD62p, CD63, and TPO in BPD group was significantly higher than the control group [29.7 (3.1%) vs. 14.5 (2.5%), 15.4 (2.0%) vs. 5.8 (1.7%), 301.4 (25.9) pg/ml vs. 120.4 (14.2) pg/ml, all p &lt; 0.05]. Furthermore, the concentration of TPO was negatively correlated with platelet count in BPD group with thrombocytopenia.Conclusions: Our findings suggest that platelet metabolism is involved in the development of BPD in preterm infants. The possible mechanism might be through increased platelet activation and promoted TPO production by feedback.

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