SLEEP APNEA IN STABLE HEART FAILURE: CLINICAL, POLYGRAPHIC AND ECHOCARDIOGRAPHIC CHARACTERISTICS.
BACKGROUND AND OBJECTIVE Sleep apnea syndrome (SAS) is a frequent comorbidity in patients with heart failure (HF), contributing to disease progression and poorer outcomes, yet remains largely underdiagnosed. This study aimed to characterize the clinical, polygraphic, and echocardiographic features of sleep apnea phenot...