关键词: 支气管肺发育不良, 婴儿, 肺功能

Abstract: Objective To investigate the changes of tidal breath pulmonary function in infants with bronchopulmonary dysplasia(BPD) for 3 years. Method BPD infants were contacted by out-patient follow-up,pulmonary function including RR,VT,TI,TE,TPTEF/TE,VPTEF/VE,body height,weight were monitored at 1,2 and 3 years old. Results There were significant differences in pulmonary function,body height and weight with BPD infants compared with non BPD infants (P<0.05),the values of VT,TI,TPTEF/TE,VPTEF/VE in BPD group were lower than those in the non-BPD group,the values of TE,RR of BPD group were higher than those in the non-BPD group (P<0.05). Conclusion BPD infants have damaged pulmonary function and retardation of growth before 3 years old.

Key words: bronchopulmonary dysplasia, infants, pulmonary function