The effect of the body mass index on the types of urinary tract stones

• Published in: Urology annals Vol. 12; no. 1; pp. 42 - 48
• Main Authors: Almannie, Raed, AL-Nasser, Khalid, Al-Barraq, Khalid, Alsheheli, Muaath, Al-Hazmi, Hamdan, Binsaleh, Saleh, Althunayan, Abdulaziz, Alomar, Mohammed
• Format: Journal Article
• Language: English
• Published: India Wolters Kluwer India Pvt. Ltd 01.01.2020; Medknow Publications and Media Pvt. Ltd; Medknow Publications & Media Pvt. Ltd; Wolters Kluwer - Medknow; Wolters Kluwer Medknow Publications
• Subjects: Analysis; Body mass index; calcium oxalate stones; Infrared spectroscopy; Kidney stones; Medical research; Medical schools; Obesity; Original; Public health; Public health movements; Spectroscopy; Studies; urinary tract stones; urolithiasis; Saudi Arabia; Riyadh Saudi Arabia; urolithiasis; Body mass index; urinary tract stones; calcium oxalate stones
• ISSN: 0974-7796; 0974-7834
• DOI: 10.4103/UA.UA_161_18

Objectives: Urinary tract stones are a common public health problem worldwide. In addition, identifying the composition of stones is important for the further metabolic evaluation of patients. We conducted this study to further correlate the relationship between body mass index (BMI) and different compositions of urinary tract stones. Materials and Methods: A retrospective study of 433 patients who underwent urinary tract stone analysis via Fourier-transform infrared spectroscopy at King Khalid University Hospital in Riyadh from May 2015 to June 2017 was performed. Their BMI at the time of stone analysis was recorded. Results: A total of 433 stones were analyzed by the statistical data analysis software. The BMI was classified according to the WHO classification. We divided our patients into seven age groups. Most patients were between the age group of 35 and 44 years and were overweight. The incidence of calcium oxalate, carbonate apatite, and uric acid stones was higher in patients with a BMI above thirty than in patients with a lower BMI. However, cystine stones were more common in normal-weight patients. Conclusions: In this study, we found that the incidence of certain types of stones, such as calcium oxalate, cystine, and uric acid stones, in Saudi Arabia can be predicted by BMI measurement.