Cardiac autonomic nerve function in elderly patients with frailty
10.3760/cma.j.cn114798-20200604-00674
- VernacularTitle:老年衰弱患者的心脏自主神经功能研究
- Author:
Xuezhai ZENG
1
;
Yaodan LIANG
;
Jing SHI
;
Yu GAN
;
Ning SUN
;
Di GUO
;
Lingling CUI
;
Jihong ZHOU
;
Xuedi LI
;
Na JIA
;
Hua WANG
;
Deping LIU
;
Jiefu YANG
Author Information
1. 北京医院心内科 100730
- From:
Chinese Journal of General Practitioners
2020;19(10):908-912
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To assess the cardiac autonomic nervous function in elderly patients with frailty.Methods:Patients aged ≥ 65 years old admitted in Beijing Hospital from September 2018 to August 2019 were enrolled in this study. Clinical frailty score was used to assess the frailty. The cardiac autonomic modulation was evaluated by sinus heart rate turbulence analysis through 24 h electrocardiogram recording.Results:A total of 129 elderly patients were finally enrolled in this study with a mean age of (77.5±6.4) years, 58.1% of them were male. There were 53 patients in frail group and 76 patients in non-frail group. The age of the frailty group was significantly higher than that of the non-frailty group [(80.5±5.5) vs.(75.3±6.2)]; the prevalence of hypertension [84.9%(45/53)], heart failure [32.1%(17/53)] and peripheral vascular diseases [32.1%(17/53)] in the frailty group was significantly higher than that in the non-frailty group [65.8%(50/76), 1.3%(1/76), 17.1%(13/76); t=5.001, χ 2=5.879, 24.606, 3.921; all P<0.05]. Compared with non-frailty group, turbulence onset (TO) [-0.05(-0.92, 0.82)% vs. -0.74(-1.58, 0)%; Z=2.616, P=0.009] was significantly higher in frailty group, while turbulence slope (TS) [2.34(1.30, 5.00)ms/RR vs. 4.34(2.66, 6.39)ms/RR; Z=-3.048, P=0.002] was significantly lower. The rate of TO abnormality [49.1% (26/53) vs. 26.3%(20/76), χ 2=7.038, P=0.008] and TS abnormality [34.7%(29/53) vs. 21.0%(16/76); χ 2=15.579, P<0.001] in the frailty group was significantly higher than that in the non-frailty group. Multivariate logistic regression analysis showed that TO abnormality( OR=2.970, P=0.010, 95 %CI:1.300-6.785) and TS abnormality( OR=3.618, P=0.003, 95 %CI:1.565-8.364) were correlated with frailty. Conclusion:Cardiac autonomic nerve function may be impaired in elderly frail patients, and decreased vagal nerve tension may be presented.
