Kidney stones appear more common in ankylosing spondylitis than in RA.
The investigation, led by Susan A. Leonard, M.D., of the University of Minnesota, Minneapolis, was the first to describe an association between nephrolithiasis and spondyloarthritis since a Croatian study that was published more than 30 years ago (Reumatizam 1973;20:106-10), according to Hollis E. Krug, M.D., who presented the latest data in a poster session at the meeting. In their retrospective cohort study of 44 patients with spondyloarthritis and 51 controls with RA undergoing treatment at the Minneapolis Veterans Affairs Medical Center, the researchers found a statistically significant greater prevalence of renal calculi in patients with ankylosing spondylitis compared with those with RA (38.6% versus 15.7%).
"There didn't seem to be a higher rate of coexistent disease in spondyloarthritis patients that could increase the risk for renal stones," Dr. Krug said. However, medication use at diagnosis of nephrolithiasis was not documented in the patients' charts, and that may have played a role in formation of kidney stones, she said.
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|Publication:||Internal Medicine News|
|Article Type:||Brief Article|
|Date:||Sep 15, 2005|
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