Assessment of the Pulmonary Diffusion Capacity in Healthy Infants and Infants With Chronic Lung Disease
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 68
- 试验地点
- 1
研究概览
简要总结
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.
详细描述
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.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Control
- 时间视角
- Prospective
入排标准
- 年龄范围
- 2 Months 至 2 Years（Child）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •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
排除标准
- •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.