Nierenberg在总结一些病例的基础上提出,Q—aTe间期(Q波或R波起点到T波顶点的距离)可以作为高血钙的临床特征。那么在低血钙和其它离子浓度异常时,Q——aTc有何变化,各离子之间有何关系,有关这方面的动物实验,尚未见报道。作者采用单极导联描记法,用豚鼠的离体心脏,在恒温恒压灌流条件下,改变灌流液中Ca~(2+)、K~+和Na~+的浓度,记录了各种情况下的豚鼠心脏的心表面ECG。有关钾离子、 Based on a number of cases, Nierenberg suggested that the Q-aTe interphase (the distance between the Q-wave or the start of the R-wave and the T-wave apex) may serve as a clinical feature of hypercalcemia. So in hypocalcemia and other ion concentrations, Q - aTc what changes, what is the relationship between the ions, animal experiments in this regard, has not been reported. The authors used unipolar lead dextran to change the concentration of Ca ~ (2 +), K ~ + and Na ~ + in perfusate under constant temperature and constant pressure perfusion in isolated heart of guinea pig, and recorded various situations Under the guinea pig heart cardiac surface ECG. For potassium ions,