Assessment of fetal pulmonary artery Doppler indices in pregnant women with rheumatoid arthritis and ankylosing spondylitis.

This is the first study to evaluate the effect of RA and AS on fetal pulmonary indices. Maternal inflammation might affect pulmonary development and circulation. Fetal pulmonary Doppler indices can be used to obtain further information about neonatal respiratory morbidities in rheumatological disorders.