HEART-RATE-VARIABILITY IN PATIENTS WITH VASOVAGAL SYNDROME

被引:17
作者
THEODORAKIS, GN
KREMASTINOS, DT
AVRAMBOS, GT
STEFANAKIS, GS
KARAVOLIAS, GK
TOUTOUZAS, PK
机构
[1] ATLANTA UNIV,ATHENS GEN HOSP,DEPT CARDIAC,ATLANTA,GA 30314
[2] ATLANTA UNIV,HIPPOKRAT HOSP,DEPT CARDIAC,ATLANTA,GA 30314
来源
PACE-PACING AND CLINICAL ELECTROPHYSIOLOGY | 1992年 / 15卷 / 11期
关键词
SYNCOPE; VASOVAGAL SYNDROME; TILT TEST;
D O I
10.1111/j.1540-8159.1992.tb03051.x
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
The aim of this study was to assess the heart rate variability in patients with vasovagal syndrome (VVS). Heart rate variability was expressed as: (1) the standard deviation (SD) of the mean RR interval; and (2) the SD as a percentage of the mean RR interval (%SD). Heart rate variability was measured in VVS patients and compared with control individuals. Eighteen patients (mean age 50 +/- 14 years) with a history of recurrent syncope and positive tilt testing were included in the study. Fifteen asymptomatic individuals (mean age 53 +/- 13 years) with no history of syncope and negative tilt testing were used as a control group. The SD and %SD (39 +/- 38 and 5 +/- 4 msec) in the VVS group were statistically higher at the tenth minute of tilt testing than in the control group (20 +/- 14 and 2.5 +/- 1.8 msec, P = 0.03 and P < 0.05, respectively). The mean RR interval (mean heart rate) was shorter after the 15th minute of tilt testing in the VVS group than in the control group (RR-VVS 687 +/- 136 msec, RR-control 801 +/- 131 msec, P < 0.05). It is concluded that heart rate variability, as expressed by the SD of the mean RR interval, and the SD as a percentage of the mean RR interval (%SD) are significantly higher in VVS patients than in control asymptomatic individuals.
引用
收藏
页码:2221 / 2225
页数:5
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