Ernesto Kufoy,1† Jose-Alberto Palma,1,2† Jon Lopez,3 Manuel Alegre,1,3 Elena Urrestarazu,1,3Julio Artieda1,3 and Jorge Iriarte1* Abstract Introduction: Obstructive Sleep Apnea (OSA) is a major risk factor for cardiovascular disease. The goal of this study was to demonstrate whether the use of CPAP produces significant changes in the heart rate or in the heart rate … [Read more...] about Changes in the Heart Rate Variability in Patients with Obstructive Sleep Apnea and its Response to Acute CPAP Treatment