Welcome
@Maci Monay !
I would recommend that, while there is still time, you ask some very specific questions of your surgeon, who is known to do an experimental operation other than the DS and MAYBE (I don't want to make accusations without firm proof) is calling it the DS, or just like the DS, or an improvement on the DS, or some such thing. It's known by a bunch of different names, including SADI, or SIPS, or loop DS, and it's NOT recognized as a standard of care bariatric operation. The real, standard of care DS, with 2 anastomoses, has been standard of care since about 2004 and is the one with all the stellar long term results. Long term results of this newer operation are not known, and in addition, most insurance companies don't cover it, so surgeons either use the code for the real DS (which it isn't) or cobble together a couple other existing codes that don't even make sense together.
It is unfortunate that patients have to be so careful, and can't just trust our doctors, but there is a lot of strange stuff going on in the world of bariatric surgery, patients are a vulnerable, sometimes desperate group, and you must do your due diligence. It is also unfortunate that your surgery date is so close, but better now than after.