Preliminary Study on Microplastics Deposition in Ventilator Circuit and the Risk of Bronchopulmonary Dysplasia in Premature Infants (Microplastics)
In this study, the premature infants with gestational age less than 30 weeks were taken as the object, and the deposition characteristics of microplastics in ventilator circuit and its correlation with the risk of bronchopulmonary dysplasia were systematically discussed through prospective observation design. The research is divided into two parts: firstly, the release and deposition of microplastics in the ventilator circuit (water storage tank and simulated lung) are detected; Secondly, the changes of microplastics load in airway secretions of children with bronchopulmonary dysplasia on the 0-7th day, 14th day and 28th day were dynamically monitored, and samples of bottle milk and newborn blood were collected simultaneously to evaluate the exposure level of multi-channel microplastics. Microplastics was qualitatively and quantitatively analyzed by confocal micro-Raman spectroscopy, and the dose-response relationship between microplastics load and bronchopulmonary dysplasia was analyzed in combination with clinical data, so as to provide scientific basis for risk prevention and control of iatrogenic microplastics exposure in neonatal intensive care unit. In this study, the blood sample only used the remaining venous blood collected by routine clinical diagnosis and treatment (such as blood routine and blood gas analysis) on the 7th, 14th and 28th day (2 days) after the newborn was admitted to the hospital, and the dosage was 0.5-1 mL, which was placed in a glass anticoagulant tube. Each child is collected at most once. If there is no clinical blood collection at this time point, no additional puncture blood collection will be carried out to ensure that the operating burden and risk of children will not be increased.
Studieoversigt
Status
Status
Betingelser
Betingelser
Detaljeret beskrivelse
Objective To investigate the relationship between microplastics deposition in ventilator circuit and bronchopulmonary dysplasia (BPD) in premature infants, and to evaluate the risk of iatrogenic microplastics exposure in NICU.
Methods A prospective observational cohort study was conducted. Premature infants with gestational age less than 30 weeks who needed mechanical ventilation were divided into groups according to whether BPD occurred or not. Samples of condensate water, simulated lung lavage fluid, airway secretions, blood and milk were collected, and microplastics characteristics were detected by acid digestion, vacuum filtration and confocal micro Raman spectrometer. Clinical data were collected and analyzed by multivariate statistics.
Hypothesis: It is expected that microplastics such as polyethylene and polypropylene can be detected in the ventilator circuit. Microplastics load of airway secretion in BPD group increased significantly, which was positively correlated with ventilation duration and showed an increasing trend with the course of disease. Inhalation is the main exposure route, and airway microplastics load may be an independent risk factor for BPD.
This study provides a basis for the safety assessment and clinical prevention and control of medical equipment and materials in NICU.
Undersøgelsestype
Undersøgelsestype
Tilmelding (Anslået)
Tilmelding
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Prøveudtagningsmetode
Studiebefolkning
Neonates with invasive mechanical ventilation
Beskrivelse
Inclusion criteria:Neonates with invasive mechanical ventilation Exclusion criteria:1、Children who died of genetic metabolism and congenital heart disease 2、Family members refused to carry out the experiment.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Observationsmodeller: CASE_CONTROL
- Tidsperspektiver: PROSPECTIVE
Antal grupper/kohorter
Kohorter og interventioner
Gruppe / kohorteGruppe / kohorte |
|---|
|
BPD group
|
|
Non-BPD group
|
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Microplastics deposition of airway secretions.
Tidsramme: up to 4 weeks
|
Measure the average particle size, quantity and type of microplastics. |
up to 4 weeks
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Incidence of bronchopulmonary dysplasia
Tidsramme: 1 month
|
incidence rate |
1 month
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Datoer for undersøgelser
Studer store datoer
Studiestart (Anslået)
Studiestart
Primær færdiggørelse (Anslået)
Primær færdiggørelse
Studieafslutning (Anslået)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
- Urogenitale sygdomme
- Kvinders urogenitale sygdomme og graviditetskomplikationer
- Obstetrisk arbejde, for tidligt
- Obstetriske arbejdskomplikationer
- Graviditetskomplikationer
- Luftvejssygdomme
- Lungesygdomme
- Spædbørn, for tidligt fødte, Sygdomme
- Spædbarn, Nyfødt, Sygdomme
- Lungeskade
- Ventilator-induceret lungeskade
- Medfødte, arvelige og neonatale sygdomme og abnormiteter
- For tidlig fødsel
- Bronkopulmonal dysplasi
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- 2026-KY-KZ-146-02
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
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