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Sleep disordered breathing and gestational hypertension: postpartum follow-up study
John Reid1, Riley A Glew, Robert Skomro
1Division of Respiratory Medicine, University of Saskatchewan, Saskatoon, SK Canada. j.reid@usask.ca
Sleep
|May 2, 2013
Summary
Gestational hypertension (GH) may increase sleep disordered breathing (SDB) during pregnancy. Postpartum follow-up showed SDB improved in women with GH, suggesting pregnancy
Area of Science:
- Cardiovascular health
- Sleep medicine
- Obstetrics
Background:
- Gestational hypertension (GH) is a risk factor for future cardiovascular events.
- Sleep disordered breathing (SDB) is also linked to cardiovascular issues.
- GH may be associated with increased SDB during pregnancy, but postpartum persistence is unknown.
Purpose of the Study:
- To determine if women with GH have persistent SDB after pregnancy.
- Compare postpartum SDB rates in women with and without a history of GH.
Main Methods:
- Previous study of women with GH and healthy controls using sleep questionnaires and polysomnography.
- Repeat testing 1-2 years postpartum.
- Assessment of respiratory disturbance index (RDI) changes.
Main Results:
- Women with GH showed a significant decrease in mean RDI from antepartum to postpartum (12.0 to 2.9, P=0.02).
- Healthy women had no significant change in RDI (2.8 to 2.1, P=0.81).
- Postpartum RDI in women with GH became similar to that of healthy controls (P=0.75).
Conclusions:
- SDB in women with GH improved postpartum to levels similar to healthy women.
- Pregnancy's physiological effects may contribute to SDB development in GH.
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