Prevalence of patent foramen ovale in subjects with obstructive sleep apnea: a transcranial Doppler ultrasound study Prevalence of patent foramen ovale in subjects with obstructive sleep apnea: a transcranial Doppler ultrasound study Download Preliminary observations on the effects of sleep time in a sleep restriction paradigm Role of cardiac pacing in sleep apnea uncertain: Article reviewed: S. Garrigue, P. Bordier, P. Jais, et al., Benefit of atrial pacing in sleep apnea syndrome, N Engl J Med, 346 (2002) 404–412