Analysis of heart rate variability in patientswith chronig congestive heart failure

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Analysis of heart rate variability in patientswith chronig congestive heart failure

更新时间：2024-01-17

- Analysis of heart rate variability in patientswith chronig congestive heart failure
- Journal of Chongqing Medical University Issue 3, (1997)
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  CLC： R541.61
- Published：1997，
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[1]罗开良,邓昌明,殷跃辉,王冀平,余强,李增高.充血性心力衰竭患者的心率变异研究[J].重庆医科大学学报,1997(03):207-210.

Analysis of heart rate variability in patientswith chronig congestive heart failure. [J]. Journal of Chongqing Medical University (3).(1997)
[1]罗开良,邓昌明,殷跃辉,王冀平,余强,李增高.充血性心力衰竭患者的心率变异研究[J].重庆医科大学学报,1997(03):207-210. DOI：

Analysis of heart rate variability in patientswith chronig congestive heart failure. [J]. Journal of Chongqing Medical University (3).(1997) DOI：

摘要

５４例心脏病患者根据ＮＹＨＡ标准分为两组；心功能Ⅰ－Ⅱ级组２７例；心功能Ⅲ－Ⅳ级组２７例。健康对照组２９例。三组的平均年龄及性别构成比无显著差别。心率变异（ＨＲＶ）时域指标，包括ＳＤＮＮ、ＳＤＡＮＮ．ＳＤＮＮＩＤＸ、ｒＭＳＳＤ、ｐＨＨ５０和ＨＲＶＩ是由２４小时动态心电图记录分析计算获得。在记录动态心电图的当日还采用短程（１０分钟）频域分析方法，测定ＬＦ和ＨＦ段功率，以及ＬＦ／ＨＦ比值。结果表明：心脏病患者ＨＲＶ减低，心功能Ⅲ－Ⅳ级组最低。ＨＲＶ降低反映迷走神经功能损害，特别是较重的心衰时，损害程度尤为显著。心衰时虽然交感神经兴奋性升高。但ＬＦ段功率却反而降低，这可能跟心衰时迷走神经兴奋性降低的反向影响以及心脏对交感神经刺激心率加快的反应低下有关系。

Abstract

Heart rate variability (HRV) was measured in 29 normal subjects (group I )

2F patients with cardiac function of NYHA Class Ⅰ to Ⅱ (group Ⅱ) and 27 patients with Cardiac function of NYHA class Ⅲ to Ⅳ(group Ⅲ)

The time domain indices of HRV wore obtained from 24 - hour ambulatory . recordings

including SDNN

SDANN

SDNNIDX

rMSSD

pNN50 and HRVI. Frequency domain indices were obtained from 10 minutes electrocardiographic recordings

including LF

HF and the ratio of LF/HF. The average values of LF

HF and all time domain indices were orderly reduced from groupⅠ to groupⅡ

the differences between any two gruops were atatistically significant . The ratio of LF / HF orderly increaaed from group Ⅰ to group Ⅲ. These findings indicated that HRV was reduced in patients with chronic heart failure and therefore the cardiac parasympathetic activity was also reduced. The degree of parasympathetic dysfunction was related to the severity of heart failure.

关键词

充血性心力衰竭心率变异

Keywords

Congestive heart failureheart rate variability

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李增高

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Related Institution

Department of Internal Medicine, The Second College of Clinical Medicine

重庆医科大学第二临床学院心血管内科

重庆医科大学临床学院心血管内科

Department of Cardiology, the Second College of Clinical Medicine , Chongqing Medical University

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