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Assessment of the Pulmonary Diffusion Capacity in Healthy Infants and Infants With Chronic Lung Disease

29. marts 2012 opdateret af: Indiana University
The purpose of this study is to evaluate how easily gas can be taken up by the lung. We are comparing infants born premature <32 weeks gestation to infants born full term >37 weeks. We hope to evaluate the differences between the two groups in order to learn more about premature lung growth and development.

Studieoversigt

Status

Afsluttet

Betingelser

Detaljeret beskrivelse

We hypothesize that infants who were born prematurely but are clinically without chronic respiratory disease have a lower lung diffusion capacity than healthy infants born at full term, when evaluated at comparable post-conception ages. In addition, prematurely born infants that develop chronic lung disease have an even lower diffusion capacity than healthy premature infants and full term infants. A lower diffusion capacity, when normalized to lung volume, would be consistent with decreased alveolarization and alveolar surface area in the infants born prematurely. We will study the age range of 1 to 24 month as this represents the period of rapid lung growth.

Undersøgelsestype

Observationel

Tilmelding (Faktiske)

68

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Forenede Stater
    • Indiana
      • Indianapolis, Indiana, Forenede Stater, 46202
        • Riley Hospital for Children

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

2 måneder til 2 år (Barn)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

Recruitment for premature infants were through Infant Lung Disease clinic at Riley Hospital for Children and IU NICU. Healthy full term infants were recruited through advertisements in local newspapers.

Beskrivelse

Inclusion Criteria:

  • Group 1 Infants born at < 32 weeks gestation with Chronic lung disease
  • Group 2 Infants born at <32 weeks gestation without Chronic lung disease
  • Group 3 Infants born full term at >37 weeks

Exclusion Criteria:

  • Group 1 and Group 2--No heart disease, no oxygen requirement
  • Group 3--No hospitalization for respiratory illness, No asthma, No heart disease, No history of wheezing, asthma or treatment with asthma medications.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Kohorter og interventioner

Gruppe / kohorte
1

Group 1:

Infants born prematurely at a gestational age < 32 weeks with a diagnosis of chronic lung disease. Subjects will be evaluated at a corrected-age between 1 month and 24 months when they are clinically stable and free of acute respiratory symptoms for > 3 weeks. Subjects will be excluded for the following reasons:

  1. Oxygen requirements
  2. Congenital heart disease
2

Group 2:

Infants born prematurely at a gestational age < 32 weeks without a diagnosis of chronic lung disease. Subjects will be evaluated at a corrected-age between 1 month and 24 months when they are clinically stable and free of acute respiratory symptoms for > 3 weeks. Subjects will be excluded for the following reasons:

  1. Oxygen requirements
  2. Congenital heart disease
3

Group 3:

Infants born full term at a gestational age > 37 weeks. Subjects will be evaluated at a corrected-age between 1 month and 24 months when they are clinically stable and free of acute respiratory symptoms for > 3 weeks. Subjects will be excluded for the following reasons:

  1. Hospitalization for a respiratory illness
  2. History of wheezing, asthma, or treatment with asthma medications
  3. Congenital heart disease

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Indiana University

Efterforskere

  • Ledende efterforsker: Robert S Tepper, MD, PhD, Indiana University

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. februar 2004

Studieafslutning (Faktiske)

1. december 2008

Datoer for studieregistrering

Først indsendt

25. januar 2007

Først indsendt, der opfyldte QC-kriterier

25. januar 2007

Først opslået (Skøn)

29. januar 2007

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

30. marts 2012

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

29. marts 2012

Sidst verificeret

1. marts 2012

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 0309-15

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

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Betingelser

Sjældne sygdomme

Narkotikainterventioner

Kosttilskud

Sponsor / samarbejdspartnere

Placeringer

3
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