Havent been on in a lonnnng while got question...

Ok Had surgery just about 3 yrs ago in Dec...and so far have had no problems...other than being not totally compliant on my Vit's.
So found out Monday that I have Kidney Stones...one Very large one ( in the 4's is what their saying) on the Left side and 3 sm one's as well. So the surgeon said to me it was because I had Bariatric surgery and that was what was causing them. So My question is how true is this and has anyone else had any problems like this?? Thanks for your help
Hugs to all

Many people that have bariatric surgery do not get kidney stones.  Do you drink enough water?  You are taking calcium citrate, right?  No calcium carbonate?

Yes on the citrate...they tryed to tell me that all the Vit's are all wrong too....I told "not" I may be non compliant but not that non compliant to know what Im suppose to be taking...Now water is another thing...I know that I dont drink enough water...guess too late on that one now for the stones....

Might be too late for these stones, but drinking more in the future might help prevent future stones.

Very true Kelly...thanks for you help....going to ge****er now...Oh and Vit's....

RNY increases the likelihood of kidney stones, there have been quite a few studies that show a correlation. I have never had one, hopefully never will. You ave my sympathies! This is just the first article I found, if you do a search on Google you will find more, and some may have suggestions on how to prevent a recurrence.

http://www.medicalnewstoday.com/releases/56495.php  

I think you mean causation, not correlation. Correlation is when two things happen at the same time but aren't necessarily related. Causation is when one thing causes another. The study you cited supports causation, but the sample size is very small.

Nope,  meant correlation as per the definition below.. I have read many studies on this subject with varying sized groups, however being that I am not a researcher, and in that they did not (and can not conclusively) state that RNY causes every case of stones in an RNY patient, it just increases the chances significantly by changing urine chemistry, I didn't chose to use the word causation. There is a positive correlation between having the RNY and developing kidney stones later. Thanks for checking my words, but I used the correct one.



the state or relation of being correlated; specifically : a relation existing between phenomena or things or between mathematical or statistical variables which tend to vary, be associated, or occur together in a way not expected on the basis of chance alone 

If A causes B and B causes C then you can logically say that A causes C. That's exactly the causation laid out here (RNY leads to urine chemistry changes, urine chemistry change leads to kidney stones, therefore RNY leads to increased incidence of kidney stones). 

You're right in that it is also a correlation, but a causative relationship is a stronger one and implies that one causes the other and is the more correct term when causation can be established. It need not cause it in all cases for this to be true, only in all cases of the context being studied (meaning not every case of kidney stones need be caused by the RNY for this to be true, clearly some non-RNY people also get kidney stones, but in their cases something else changes their urine chemistry).

Saying that two things vary together says nothing about the cause of the phenomena being the same. Saying that there is a correlation between two things in this context is meaningless and the study clearly set out to establish causation between the RNY and kidney stones, which I believe they did in this case. They established in thier population that there was not another confounding variable that might have caused the kidney stones, like say, obesity itself because the obese non-RNY people neither exhibited the urine chemistry changes nor the kidney stones to the same extent. My only concern is about the strength of that causal relationship as the study size is very small, something with closer to 200 participants is required to have strong validity and therefore be able to widely generalize the results.

FYI - I've studied advanced statistics, designed experiements and been published for scientific research.

I had kidney stones 20 years ago, had the lithotripsey, and haven't had a kidney stone since.  I'm
six years post-op, and take the 2X calcium citrate recommended.. 

Doctors have some wonderful thoughts re: cause and effect.  It ain't necessarily so. They don't
really know what causes kidney stones.

Lithotripsey works great.  I hope that's what they do.  

Good luck!