The second edition of “IEC 60601-2-31 - Medical electrical equipment - Part 2-31: Particular requirements for the basic safety and essential performance of external cardiac pacemakers with internal power source” has been recently published by the IEC> The main chage was the alignment with the new editio of the new standard IEC 60601-1:2005. Some technical comments were maed during the drafting but they were postponed for a future amendment if needed.