Domínguez-Mayoral, AnaSánchez-Gómez, JesúsGuerrero, PatriciaFerrer, MartaGutiérrez, CarmenAguilar, MaríaFouz-Rosón, NataliaBenítez, José MaríaPérez-Sánchez, SoledadGamero-García, Miguel ÁngelDe Torres-Chacón, ReyesBarragán-Prieto, AnaAlgaba, PilarRuiz-Bayo, LidiaMontaner, Joan2025-01-072025-01-072021https://hdl.handle.net/10668/27976Spain's so-called Stroke Belt is an area with high prevalence of vascular disease. We aimed to determine the prevalence of undetected obstructive sleep apnea-hypopnea syndrome (OSAHS) among patients with acute ischemic stroke (AIS) in southern Spain. We conducted a cross-sectional study at the Virgen Macarena University Hospital Stroke Unit during 2018 to 2019. We included patients Seventy-two patients were included. The median participant age was 72 years. Mean body mass index was 27.07 kg/m2, and 40.28% were daily alcohol drinkers. Hypertension, atrial fibrillation, ischemic cardiomyopathy, and previous stroke were detected in 63.9%, 11.1%, 15.3%, and 17.6% of patients, respectively. Polygraphy was feasible in 91.38% of patients. The prevalence of OSAHS was 84.72% (apnea-hypopnea index ≥5). Patients with moderate and severe OSAHS were more likely to be obese and to have a larger neck circumference and facial palsy. The diagnostic criteria of central sleep apnea syndrome were met in only 1.38% of patients. The high prevalence of OSAHS found in the Spanish Stroke Belt justifies further investigation and development of a screening program as a strategy to identify patients with undetected OSAHS.enAttribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/Spanish Stroke Beltischemic strokeobstructive sleep apnea–hypopnea syndromepolygraphypolysomnographyscreeningAgedBrain IschemiaCross-Sectional StudiesHumansPrevalenceSleep Apnea, ObstructiveSpainStrokeresearch article34719990open access10.1177/030006052110530901473-2300PMC8562644https://journals.sagepub.com/doi/pdf/10.1177/03000605211053090https://pmc.ncbi.nlm.nih.gov/articles/PMC8562644/pdf