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目的：探讨普洛帕酮（Pro）对兔左心室后负荷变化引起的心室电生理改变的作用。方法：Pro3mg／Kgiv前后，改变左心室后负荷，观察室性心律失常发生汕头大学医学院第二附属医院心血管病研究室||情况；并测定左心室舒张阈值（VDT），相对不应期（RRP），有效不应期（ERP）及其
Objective: To investigate the effect of Prooprone on ventricular electrophysiological changes induced by changes of left ventricular afterload in rabbits. Methods: The changes of left ventricular afterload were observed before and after Pro3mg / Kgiv administration. The occurrence of ventricular arrhythmia was observed in Cardiovascular Institute of Second Affiliated Hospital of Shantou University Medical College. The left ventricular diastolic threshold (VDT), relative refractory period (RRP), effective refractory period (ERP) and its