Sorry I cannot write my answer in your own language, but if Bob has found a way to translate into English, then I'm sure that it would be possible to reverse the process. (Thanks to Bob for the translation!)
I have irrigated every day since 5 weeks out from my operation which was years ago. The reason for the everyday process was that I could only last a day and a half before I had output, and there was no way I could or would want to irrigate every 36 hours. Hence, it is a daily (24hr) routine for me.
I do not know how experienced your nurse is in these matters but, as has been said many times on this site: ‘everyone is different and have different needs regarding the management of stomas’.
Things that might be pertinent to think about are: what problems you suffered before the stoma, and whether there is anything that would have a detrimental effect if irrigation was practiced too often.
My stoma nurse recently suggested that my colon had possibly ‘turned to mush’ (whatever that means) and the alternative option would be to go back to wearing bags.
However, my interpretation of this was that the gut and the peristalsis were no longer working as they should in a healthy gut. This may or may not have anything to do with irrigation as the reason I had the operation was an internal prolapse, which presumably indicated the same sort of thing that she now describes as a ‘mushy gut’.
I am still irrigating daily because I am reluctant to go back to wearing bags and all the disadvantages that brings.
I believe that the management of our stomas is a very personal choice based on the information available and the wants, desires, hopes and expectations that we have for our daily lives. There are risks involved in everything we do and it is sometimes useful to know more precisely what they are, so that we can make more informed decisions.
If I were in your position, I would want to know (in much more detail) the reason behind the nurse’s comments and whether continued irrigation would carry unacceptable risks, that I hadn’t already thought about.
Best of luck with your information gathering and your ultimate decision making.