ABSTRACT
Objective To analyze the prevalence and risk factors of sleep apnea syndrome (SAS) in patients with Alzheimer's disease (AD), and to provide theoretical basis for the prevention of SAS in AD patients. Methods A total of 130 AD patients admitted to the Department of Neurology of Guang'an People's Hospital of Sichuan Province from January 2019 to September 2022 were selected and divided into control group (without SAS) and observation group (with SAS) according to whether the patients were complicated with SAS{AHI ≥5 times/h}. Snoring, waking at night, dry mouth in the morning, AHI and SaO2 values were compared between the two groups. Clinical data of AD patients, including age, gender, body mass index (BMI), AD course, tobacco and alcohol history, and neurodegenerative diseases, were collected by self-made questionnaire and consulting the patient's electronic medical record bed. Univariate analysis and logistic regression were used to analyze the independent risk factors for SAS in AD patients. Results Among 130 AD patients, 43 cases (33.08%) of SAS occurred. The proportion of snoring, awakening at night, dry mouth in the morning and AHI value in the observation group were significantly lower than those in the control group (P2, PSQI score >16 points and CDR score ≥2 points were independent risk factors for SAS in AD patients (P2, PSQI score >16 and CDR score. Polysomnosis monitoring should be performed regularly to prevent SAS.