pulmonary disorders
Central Sleep Apnea
Introduction
Central sleep apnea (CSA) is a heterogeneous group of conditions characterized by changes in ventilatory drive without airway obstruction. Most of these conditions cause asymptomatic changes in breathing pattern during sleep. The diagnosis is based on clinical findings and, when necessary, confirmed by polysomnography. Treatment is supportive. Central sleep apnea (CSA) is much less common than Obstructive Sleep Apnea (OSA) but is not rare. CSA is present in about 0.9% of people in the community ( 