Objective To investigate the frequency dependent effects of amiodarone on ventricular electrophysiology in right ventricular rapid pacing induced congestive heart failure (CHF) canine models.

目的研究胺碘酮对快速右心室起搏致充血性心力衰竭(CHF)犬模型心室电生理特性的频率依赖性影响。

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Atrial pacing at different frequencies can reveal atrioventricular node can not be present at a frequency of electrophysiological phenomena.

不同频率心房起搏也可揭露房室结在某一频率下不能呈现的电生理现象。

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"The research suggests that large carnivores with large home ranges show a higher frequency of stereotypic behaviour such as pacing in captivity, " said federation director Dr Miranda Stevenson.

BBC: NEWS | Science/Nature | Carnivores' need for wild walk