Asthma is the commonest respiratory disorder complicating pregnancy (5% of pregnant women). Other respiratory disorders are uncommon in pregnancy and include sarcoidosis, pulmonary fibrosis and cystic fibrosis.
For women with asthma, 1/3 will improve, 1/3 will remain stable and 1/3 will worsen by being pregnant. For women with asthma, the severity of disease should be determined early in pregnancy with pulmonary function testing (spirometry). Normal asthma medications should be continued during pregnancy (including steroids where necessary). In general, asthma is not associated with complications, except in severe disease.
Cystic fibrosis is a complex metabolic disease and, as CF treatment has improved, many women with CF are becoming pregnant. Outcome in pregnancy for women with CF is determined by respiratory and nutritional status. Pregnant women with CF should be cared for by an experienced Maternal-Fetal Medicine specialist.
Yes, we are very experienced in managing asthma in pregnancy and are familiar with pulmonary function testing in the pregnant patient. We have also looked after a number of women with cystic fibrosis and other serious respiratory diseases during pregnancy.