Heart rate variability in patients with vascular dementia

中华老年多器官疾病杂志 Pub Date : 2011-01-01 DOI:10.3724/sp.j.1264.2011.00008

Yang Ruijie

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引用次数: 0

Abstract

Objective To determine the roles of heart rate variability(HRV) in evaluating cardiac autonomic nerve function of patients with vascular dementia.Methods Totally 124 patients with vascular dementia and 102 control subjects received 24h dynamic Holter monitoring to perform frequency domain measures,time domain measures and non-linear analysis of HRV. The following HRV spectral parameters were considered:total frequency power(TF),low frequency power(LF),high frequency power(HF),standard diviation of normal-to-normal intervals(SDNN),square-root of mean squared differences of successive NN intervals(RMSS),and standard deviation of SDNN(SDSD).Poincare plot descriptors included vector angle index(VAI) and vector length index(VLI).Results The time domain measures(SDNN,RMSS,SDSD),frequency domain measures(TF,LF,HF),VAI and VLI were significantly lower in patients with vascular dementia than in control subjects[SDNN:(78±28) vs(129±30)ms,RMSS: (20±8) vs(24±8)ms,SDSD:(17±7) vs(22±8)ms,P0.01;TF:(1432±621) vs(1962±583) ms~2/Hz,LF:(934±347) vs (1309±371)ms~2/Hz,HF:(473±174) vs(601±247)ms~2/Hz,P0.01;VAI:(0.54±0.14) vs(0.67±0.13)ms,VLI:(154±19) vs(194±25)ms,P0.01].There were less patients who had Poincare scatter grams in shape of comet in patients with vascular dementia than in control subjects.Conclusion We recommend to perform HRV analysis,a noninvasive mehtod,for patients with vascular dementia to evaluate the cardiac autonomic nerve function.

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血管性痴呆患者的心率变异性

目的探讨心率变异性(HRV)在评价血管性痴呆患者心脏自主神经功能中的作用。方法对124例血管性痴呆患者和102例对照组进行24h动态动态动态心电图监测，分别进行频域测量、时域测量和HRV非线性分析。考虑HRV频谱参数:总频率功率(TF)、低频功率(LF)、高频功率(HF)、正态与正态区间的标准差(SDNN)、连续NN区间均方差的平方根(RMSS)和SDNN的标准差(SDSD)。庞加莱图描述符包括矢量角度指数(VAI)和矢量长度指数(VLI)。结果血管性痴呆患者的时域测量(SDNN、RMSS、SDSD)、频域测量(TF、LF、HF)、VAI和VLI均显著低于对照组[SDNN:(78±28)vs(129±30)ms,RMSS:(20±8)vs(24±8)ms,SDSD:(17±7)vs(22±8)ms,P0.01;TF:(1432±621)vs(1962±583)ms~2/Hz,LF:(934±347)vs(1309±371)ms~2/Hz,HF:(473±174)vs(601±247)ms~2/Hz,P0.01;VAI:(0.54±0.14)vs(0.67±0.13)ms,VLI:(154±19)vs(194±25)ms,P0.01]。血管性痴呆患者出现彗星状庞加莱散射图的患者少于对照组。结论我们建议对血管性痴呆患者采用无创的HRV分析方法评估心脏自主神经功能。

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来源期刊

中华老年多器官疾病杂志

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发文量

3039

期刊介绍： Chinese Journal of Multiple Organ Diseases in the Elderly (monthly) is a medical academic journal under the supervision of PLA General Hospital, sponsored by PLA General Hospital Medical Innovation Research Department, National Clinical Medical Research Center for Geriatric Diseases (PLA General Hospital), and Department of Cardiovascular Medicine of the Sixth Medical Center of PLA General Hospital, and publicly issued at home and abroad. This journal was founded in June 2002 and is a Chinese Science and Technology Paper Statistical Source Journal (China Science and Technology Core Journal), and is included in major domestic retrieval systems and well-known domestic and foreign retrieval systems such as the American Chemical Abstracts. As the only academic journal in China that reflects multi-organ diseases in the elderly, Chinese Journal of Multiple Organ Diseases in the Elderly mainly exchanges the diagnosis and treatment experience and lessons of cardiovascular diseases in the elderly, especially cardiovascular diseases in the elderly combined with other diseases, diseases of more than two organs in the elderly, and other multiple diseases in the elderly, explores their pathogenesis and effective diagnosis and treatment measures, and focuses on reporting the latest clinical, basic and preventive achievements and experiences in the research of the above diseases in my country with innovative significance; the main readers are medical, scientific research and teaching personnel engaged in geriatric cardiology and (or) geriatric medicine and related diseases. The main columns include expert comments, special forums, clinical research, basic research, clinical pharmacy, case reports, new technologies and methods, clinical pathology discussions, reviews, academic trends, expert popular science lectures, etc.