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Advances in Urology
Volume 2012 (2012), Article ID 438707, 4 pages
Clinical Study

Overweight and Obesity: Risk Factors in Calcium Oxalate Stone Disease?

1Department of Urology and Paediatric Urology, Klinikum Coburg, Ketschendorfer Strasse 33, 96450 Coburg, Germany
2Urinary Stone Laboratory, Vivantes MVZ for Laboratory Diagnostics, Berlin, Germany

Received 16 August 2011; Revised 24 November 2011; Accepted 13 December 2011

Academic Editor: James A. Brown

Copyright © 2012 Beate Maria Wrobel et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Introduction. Several studies showed an association of overweight and obesity with calcium oxalate stone disease (CaOx). However, there are no sufficient data on the influence of body weight on the course of the disease and the recurrence rate. Patients and Methods. consecutive stone formers with pure CaOx were studied. Different parameters were investigated. According to the BMI, patients were divided into three groups: (1) ; (2) BMI 25.1–30; (3) . Results. patients showed a , patients showed a BMI of 25.1–30 and patients showed a . The groups differed significantly concerning BMI (by definition), urine pH, and urine citrate. The recurrence rate was not significantly different. Discussion. Our study demonstrated that body weight negatively influences single risk factors in CaOx, but obesity is not a predictor for the risk of recurrence in CaOx.