Chronic Lung Disease
From: http://children.webmd.com/tc/chronic-lung-disease-in-infants-topic-overview
What is chronic lung disease?
Chronic lung disease is a condition in which damaged tissue in a newborn baby's lungs causes breathing and health problems. The lungs trap air or collapse, fill with fluid, and produce extra mucus.
Most babies who have chronic lung disease survive. And many children outgrow most of their lung problems.