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

Completed

• Conditions: Infant, Premature; Bronchopulmonary Dysplasia; Asthma

• Registration Number: NCT00428038
• Lead Sponsor: Indiana University

Brief Summary

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.

Detailed Description

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.

Study Timeline

• Study Start: 2004-02
• Study First Submitted: 2007-01-25
• Study First Submitted QC: 2007-01-25
• Study First Posted: 2007-01-29
• Study Completion: 2008-12
• Status Verified: 2012-03
• Last Update Submitted: 2012-03-29
• Last Update Posted: 2012-03-30

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 68

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.

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Trial Locations

Locations (1)

Riley Hospital for Children; 🇺🇸 Indianapolis, Indiana, United States