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Arrhythmias: Terminology, Definitions, and Mechanisms Ectopic Beats or Rhythms beats or rhythms that originate in places other than the SA node the ectopic focus may cause…

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وقل ربى زدنى علما CardioMonday Oct.2005 Approach to narrow QRS tachycardias EL-SAYED M.FARAG (Msc.Cardiology) Definiton Narrow QRS complex tachycardias(NCT)…