Hy Raimund,
if you want to have a solution NOW, you may use the existing the IS-H communication capabilities. Especially, the HCM for (hospital-) internal communication is relevant here. This modules covers standard messages (the so-called HCM-messages) that are produced in an asynchronous event-driven manner.
And there are/should be events and messages for broadcasting patient manipulation.
For more information, check the "Commu ication Guide for External System Partners".
You should reach it via the following url:
https://websmp201.sap-ag.de/HEALTHCARE-GUIDES
If you don't need the solution NOW, just be informed that driven by the current ESOA activities there also will be outbound service operations providing you with patient manipulation information. I don't have the actual schedule at hands, but it'll be provided by one of the coming enhancement packages (EhP) of ERP2005.
Also an IHE conformant integration (IS-H as "patient demographics supplier"; partner system as "patient demographics consumer" according to the "Patient Administration Management" Integration Profile (see widly published IHE technical framework documentation) should be supported with this approach.
This last integration approach will probably be the best "long term" approach for most of your integration issues.
kind regards
Ali G.
