Describe the features of bronchopulmonary dysplasia (b.P.D.).?

Oxygen dependency. Bpd is a disease of the lungs of premature babies. Specific definitions vary, however is is generally defined as oxygen need at about one month of age. It typically results from long term mechanical ventilation in premies. The lungs continue to grow for he first few years of life and many outgrow the condition.
Breathing difficulty. Most infants who develop BPD are born more than 10 weeks before their due dates, weigh less than 2 pounds (about 1,000 grams) at birth, have breathing problems. High oxygen and ventilatory pressures to keep lungs open.Infections that occur before or shortly after birth also can contribute to BPD.Infants that recover may have problems with asthma. More severe cases may require ventilatory support.