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Evaluation of drug induced frequency dependent QT-prolongation using a flexible computer-based programmable stimulator

机译:使用柔性计算机的可编程刺激器评估药物诱导的频率依赖性QT延长

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The proarrhythmic potential of therapeutic drugs can be evaluated by in-vivo electrophysiological testing using stimulated bradycardias. Since conventional stimulators are limited in the number of bradycardic beats, they cannot be used to evaluate the dynamic change of QT-intervals from the onset of bradycardia until a steady state has been achieved. Therefore, we designed and implemented a computer-based programmable stimulator, that enables complex stimulation protocols. This application was then rested in an experimental guinea-pig model to evaluate the characteristics of droperidol-induced QT-interval prolongation.
机译:治疗药物的预训练潜力可以通过使用刺激的Bradycardias进行体内电生理学测试来评估。由于常规刺激器在心动卡搏动的数量中受到限制,因此不能用于评估QT间隔从心动过缓开始的动态变化,直到已经实现了稳定状态。因此,我们设计并实现了基于计算机的可编程刺激器,其能够实现复杂的刺激协议。然后将该应用置于实验豚鼠模型中,以评估滴注酚诱导的QT间隔的特征。

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