Beyond the Apnea-Hypopnea Index: Cardiovascular and Metabolic Phenotyping of Hypertensive Patients with Obstructive Sleep Apnea—A Narrative Review
Obstructive sleep apnea (OSA) is strongly associated with hypertension, yet the apnea–hypopnea index (AHI), while it defines the presence and frequency of respiratory events, predicts cardiovascular risk less reliably in the individual patient than metrics that incorporate the depth and duration of hypoxic exposure. Pa...