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Background As a neurodegenerative disease, Alzheimer's disease (AD) has a high incidence rate and rapid development, which seriously affects the quality of life of patients. In recent years, research on music therapy intervention in AD has gradually increased, lacking effective systematic evaluation and analysis. Objective A meta-analysis was conducted on the intervention effects of music in the treatment of cognition, emotion, living ability and sleep disorders in AD patients. Methods Randomized controlled trials (RCT) on the intervention effect of music therapy methods on Alzheimer's patients were searched by computer in CNKI, Wanfang Data, VIP, Medline, Elsevier Science Direct, PubMed, and Embase from inception to February 2023, and the data was analyzed using RevMan 5.3 software. Results The study included 15 RCTs with a total of 1 077 patients. The results of Meta-analysis showed that the intervention effects of music therapy on cognitive function (MD=4.35, 95%CI=1.64 to 7.05, Z=3.15, P=0.002), negative emotion (SMD=-0.71, 95%CI=-1.26 to -0.15, Z=2.51, P=0.01), life ability (SMD=-0.91, 95%CI=-1.55 to -0.27, Z=2.77, P=0.006) in the music therapy group was better than that of control group. There was no significant difference in sleep disorder intervention between the two groups (MD=-1.04, 95%CI=-3.10 to 1.02, Z=0.99, P=0.32). Subgroup analysis showed that the music therapy groups with treatment period was

Background Arrhythmias are common complications in patients with obstructive sleep apnea hypopnea syndrome (OSAHS) , however their occurrence and severity are not completely consistent with the severity of their disease per se. Our previous study found that pulse oxygen desaturation rate (ODR) was an independent predictor of the development of hypertension in OSAHS patients. We hypothesized that sleep apnea related ODR and heart rate fluctuation rate (HRFR) may predict the occurrence of arrhythmias in OSAHS patients. Objective To observe the correlation between ODR, HRFR and the occurrence of arrhythmias, and to explore the predictive value of ORD and HRFR on the occurrence of arrhythmias. Methods Polysomnography and Holter monitoring were performed on 36 patients who visited the sleep disordered breathing specialized outpatient clinic of the First Affiliated Hospital of Nanjing Medical University between January and June 2021, while basic clinical information of the patients was collected. Taking the median number of arrhythmic events as the cutoff value, the patients were divided into two groups: the patients with low incidence of arrhythmia group (