Obstructive sleep apnea in pregnancy: A review of the literature from the obstetrics practitioner's view and a proposed clinical approach.

Obstructive sleep apnea (OSA) is a frequent condition during pregnancy and its occurrence is increased in obese women. There are growing concerns about both pre-existing OSA and the development of gestational OSA and their effect on maternal pregnancy outcomes, fetal development, and even early childhood. A strong body of research has revealed maternal complications of OSA, but far fewer studies explore its impact on the developing fetus, highlighting an important area of future research. As evidence in both areas mounts about the negative reproductive impact of OSA, studies have emerged that explore the limitations of current diagnostic criteria and screening tools for this disorder in pregnancy which, in turn, limit the practitioner's ability to appropriately refer patients for OSA diagnosis and treatment. This expert review summarizes the current data regarding OSA screening tools in pregnancy, the limitations of these tools, and available OSA treatments and their efficacies. Our objective is to develop recommendations for how to best screen and manage OSA in pregnancy. We conclude that improved understanding of available tools and treatments will allow the obstetric practitioner to better counsel patients and help mitigate the deleterious effects of OSA on mother and fetus. We herein propose a clinical approach for the screening and management of OSA in pregnancy.