The role of the central nervous system in sudden cardiac death: heartbeat dynamics in conscious pigs during coronary occlusion, psychologic stress and intracerebral propranolol.
The role of the central nervous system in sudden cardiac death: heartbeat dynamics in conscious pigs during coronary occlusion, psychologic stress and intracerebral propranolol.
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中枢神经系统在心源性猝死中的作用：冠状动脉闭塞期间清醒猪的心跳动态、心理应激和脑内普萘洛尔。
DOI：
10.1007/bf02691355
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
Skinner,JE
中科院分区：
文献类型：
--
作者：
Skinner,JE
心电图记录清醒的猪在心理应激（触摸），左前降支冠状动脉闭塞，脑内左旋普萘洛尔（0.05毫克/公斤），和他们各自的控制。R-R间期采用确定性测量（点关联维数）和随机性测量（平均值）进行评价。只有确定性测量对受试者间反应敏感（P<.01），而两种测量对受试者内变化敏感。结果解释了心跳产生的确定性模型。
Electrocardiograms were recorded in conscious pigs during psychological stress (touching), left anterior descending coronary artery occlusion, intracerebral levo-propranolol (0.05 mg/kg), and their respective controls. The R-R intervals were evaluated with both a deterministic measure (point correlation dimension) and a stochastic one (mean). Only the deterministic measure was sensitive to between-subject responses (P<.01), whereas both measures were sensitive to within-subject changes. The results are explained by a deterministic model of heartbeat generation.