Mattaliano P, et al. - The link between obstructive sleep apnea (OSA) and cardiac organ damage was investigated in acute stroke patients. Higher left ventricle (LV) mass and greater left atrial enlargement were detected in acute stroke patients with OSA vs patients without OSA. The high prevalence of OSA (62%) in stroke patients was corroborated, which suggests a relationship between OSA and cardiac target organ damage. In acute stroke patients with OSA, the presence of structural LV abnormalities was indicative of a potential role of OSA as contributing factor in determining both cerebrovascular and cardiac damage, without a clear link to a history of blood pressure elevation.