Pregnant patients 24-35 weeks with BMI > 40 were given Obstructive Sleep Apnea (OSA) screening questionnaires (Berlin, American Society of Anesthesiologists checklist, and STOP-BANG), and the Epworth sleepiness scale. They underwent overnight sleep apnea testing; 24% had OSA.
“Established OSA screening tools performed very poorly to screen for OSA in this cohort. Age, BMI, neck circumference, frequent witnessed apneas and highly likely to fall asleep while driving were most strongly associated with OSA status in this cohort.”
OSA screening tools may need to be refined in this population.