甲状腺功能亢进症患者植物神经功能的昼夜周期改变  被引量:3

Circadian change of autonomic nervous system in hyperthyroidism patients

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作  者:张军霞[1] 向光大[1] 孙慧伶[1] 陈诚[1] 任虎君[1] 

机构地区:[1]广州军区武汉总医院内分泌科,430070

出  处:《中国医师进修杂志》2011年第9期1-4,共4页Chinese Journal of Postgraduates of Medicine

摘  要:目的研究甲状腺功能亢进症(甲亢)患者植物神经功能的昼夜周期改变。方法记录33例初发甲亢患者(甲亢组)和35例健康体检者(对照组)的24h动态心电图,并通过心率变异性的时域和频域分析来评价心脏植物神经功能状态。结果甲亢组所有NN间期的标准差(SDNN);以5min为间隔将24h连续记录分为288段,先计算每段的平均NN间期,然后计算288个NN间期平均值的标准差(SDANN);以5min为间隔将24h连续记录分为288段,先计算每段的NN间期标准差,然后计算288个NN问期标准差的平均值(ASDNN);所有相邻NN间期差值的均方根(rMSSD)显著低于对照组[(82.3±29.0)ms比(139.4±40.2)ms;(75.0±27.4)ms比(130.3±43.9)ms;(29.9±14.9)ms比(57.3±14.4)ms;(19.8±10.9)ms比(29.5±9.4)ms](P〈0.01或〈0.05)。甲亢组总功率(TP)、高频功率(HF)、低频功率(LF)和极低频功率(VLF)显著低于对照组[(566.1±573.2)ms2/nz比(1894.2±984.3)ms2/Hz、(68.1±88.9)ms2/I-Iz比(232.7±155.5)ms2/nz、(127.4±163.0)msZ/Hz比(551.3±390.6)msZ/Hz、(330.3±300.6)msZ]Hz比(1073.2±570.2)ms2]Hz](P〈0.01)。短时频域分析甲亢组VLF在全天大多数时间均显著高于对照组(P〈0.05),LF主要在白天显著高于对照组(P〈0.05),HF在全天散在时间高于对照组(P〈0.05);两组LF/HF在全天绝大多数时间差异无统计学意义(P〉0.05)。结论甲亢患者心脏变时性低,交感神经张力在全天均增高,而迷走神经张力虽有相应增高,但以白天增高为主,夜间接近正常水平。Objective To investigate the circadian change of autonomic nervous system in hyperthyroidism (HT) patients. Methods Recording 24 h dynamic electrocardiography from 33 HT patients( HT group ) and 35 controls (control group ). The cardiac autonomic nervous function was evaluated By the time domain and frequency domain analysis of heart rate variability(HRV ). Results Comparing with control group, the SDNN, SDANN, ASDNN and rMSSD were significantly lower in HT group[ (82.3± 29.0) ms vs.( 139.4 ±40.2) ms, (75.0 ± 27.4) ms vs.( 130.3± 43.9) ms, (29.9 ± 14.9) ms vs.(57.3± 14.4) ms, ( 19.8 ± 10.9) ms vs. (29.5 ± 9.4) ms ] (P 〈 0.01 or 〈 0.05 ), the long term total power (TP),high frequency (HF), low frequency (LF) and very low frequency (VLF) were significantly lower in HT group [ ( 566.1 ±573.2) ms2/Hz vs. (1894.2±984.3) ms2/Hz, (68.1± 88.9) ms2/Hz vs.(232.7 ±155.5) ms2/Hz, (127.4 ± 163.0) ms2/Hz vs. (551.3 ±390.6) ms2/Hz, (330.3 ± 300.6) ms2/Hz vs. (1073.2 ± 570.2) ms2/Hz] (P 〈 0.01 ). Comparing with control group, short term VLF was higher in HT group during most time in 24 hours (P 〈 0.05 ). Short term LF was higher in HT group mainly in day time (P 〈 0.05 ). Short term HF was higher in HT group occasionally in the whole day (P 〈 0.05 ). Short term LF/HF didn't show significant difference between HT group and control group at most time points (P 〉 0.05 ). Conclusion In HT patients, cardiac ehronotropic property is impaired, sympathetic activity increases in whole day, vagal activity increases correspondently but the increase in day is more marked than that in night.

关 键 词:甲状腺功能亢进症 昼夜节律 心率 植物神经 

分 类 号:R581.1[医药卫生—内分泌]

 

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