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vagal tone
    Methods: Eighteen adult male rats were randomly divided into drug group, which received intraperitoneal injection of tegaserod and vehicle control group. The electrocardiosignal was recorded in the conscious status. By HRV analysis, the changes of sympathetic tone [P1/(P1+P2)] and vagal tone [P2/(P1+P2)] before and after colorectal distension were compared in the two groups.
    方法:18只成年雄性大鼠随机分为药物组(腹腔注射替加色罗)和溶媒对照组,清醒状态下记录心电信号,通过HRV频域分析比较两组大鼠结直肠扩张前后交感神经张力[P1/(P1+P2)]和迷走神经张力[P2/(P1+P2)]的变化。
    Low dose transdermal scopolamine increases cardiac vagal tone in patients with acute myocardial infarction
    小剂量东莨菪碱透皮治疗增加心肌梗死急性期心脏迷走神经张力
    Low dose transdermal scopolamine increases cardiac vagal tone in patients after acute myocardial infarction
    小剂量东莨菪碱透皮治疗增加急性心肌梗死患者心脏迷走神经张力(英文)
    Propranolol increasing the vagal tone and its effects on DAVNP were contrary to isoproterenol.
    心得安增高心脏的迷走神经张力,结果与之相反。
    We con- clude that both high myocardial adenosine level and high vagal tone may result in sinus bradycardia and A-V block.
    实验结果提示:高腺苷含量及高迷走神经张力均可以起窦性心率减慢及房室传导阻滞。
    Variables strongly dependent on vagal tone(rMSSD,PNN50 and HF) were highly correlated as well. It showed that all variables had good reproducibility except the variables dependent on Mean HR under this measuring condition.
    与迷走神经张力变化有关的各参数rMSSD、pNN50、HF之间亦呈高度显著相关(r=0.82~0.95,P<0.001)。
    Objective Using short term heart rate variability(HRV) analysis help to determine patients with an increased vagal tone.
    目的采用心率变异(HRV)分析辅助诊断迷走神经张力增高为主的植物神经功能失调患者。
    Conclusions The patients had a slower mean heart rate and an increased vagal tone,the radio of symathetic and parasymathetic components were decreased,the symathetic to parasymathetic autonomic balance changed.
    结论40例患者平均心率减慢,迷走神经水平增高,交感迷走神经张力之比减低,交感迷走神经平衡发生了改变。
    Conclusion Propafenone and flecainide not only suppressedVPCs density efficiently, but also decreased HRV significantly indicating that the class Ic antiar-rhythmic agents could attenuate vagal tone.
    结论Ic类抗心律失常药在显著抑制VPC的同时,亦降低HRV,降低迷走神经张力
    Conclusion Obstructive sleep apnea syndrome(OSAS),heavy snoring and sleep hypoxia are the main reasons provoking nocturnal asthma attacks,the mecha nism of which is associated with narrow upper airway,increased vagal tone and ne ural reflex causing bronchoconstriction. The shift of sleep stage is a selfprotec tive mechanism of the nocturnal asthma attack patients.
    结论 合并有阻塞性睡眠呼吸暂停综合征 (OSAS)、严重打鼾及睡眠低氧是诱发夜间哮喘发作的主要原因 ,其机制与气道狭窄、迷走神经张力升高、神经反射机制有关 ,睡眠结构发生变化是机体的一种保护性机制
    Conclusion Mechanism of ERS might be increase of vagal tone and decrease of sympathetic activity and part of ventricular myocardium repolarizating early.
    结论认为迷走神经张力提高而交感神经张力降低以及局部心室肌提前复极是早期复极综合征发生的可能机制 ,另外早期复极综合征还可能存在着局部心肌延迟复极及复极离散度增大。
    Conclusions: Blocking the vagus can not prevent atrial electrical remodeling,but a high vagal tone is associated with a high dAERP during recovery from atrial electrical remodeling.
    结论 :阻断迷走神经不能阻止电重构的发生 ,但迷走神经张力升高是dAERP升高的主要原因。
    BACKGROUND Some researches show that aerobic kinesitherapy can strengthen the vagal tone that determines heart rate stability increase the heart rate variability and reduce the occurrence of cardiovascular events.
    背景:许多研究显示有氧运动疗法可增加迷走神经张力,迷走神经张力决定着稳定的心率,可提高心率变异性,减少心血管事件的发生。
 

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