ArticleObesity surgery2013
Urinary evaluation after RYGBP: a lithogenic profile with early postoperative increase in the incidence of urolithiasis.
Article in Obesity surgery, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.
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Who cites it
16 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Association of Kidney Stone Disease (KSD) with Primary Gastrointestinal Surgery: a Systematic Review over Last 2 Decades.Current urology reports · 2021Pooled it
- 24-hour urine chemistry shows higher stone formation risk after malabsorptive than restrictive type bariatric surgery.Scientific reports · 2026Article
- Delta weight loss unlike genetic variation associates with hyperoxaluria after malabsorptive bariatric surgery.Scientific reports · 2023Article
- Dietary advice for patients with bowel-related conditions and malabsorption.World journal of urology · 2023Review
- Bariatric Surgery in Patients with a History of Nephrolithiasis: 24-h Urine Profiles and Radiographic Changes After Roux-en-Y Gastric Bypass Versus Sleeve Gastrectomy.Obesity surgery · 2021Article
- Urolithiasis and sleeve gastrectomy: a prospective assessment of urinary biochemical variables.Revista do Colegio Brasileiro de Cirurgioes · 2021Article
- Article
- Review
- Stones in special situations.World journal of urology · 2017Review
- Oxalobacter formigenes colonization normalizes oxalate excretion in a gastric bypass model of hyperoxaluria.Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery · 2017Article
- Kidney Stones After Bariatric Surgery: Risk Assessment and Mitigation.Bariatric surgical practice and patient care · 2017Review
- Urolithiasis in inflammatory bowel disease and bariatric surgery.World journal of nephrology · 2016Article
- Stone formation and management after bariatric surgery.Nature reviews. Urology · 2015Review
- Kidney stone risk following Roux-en-Y gastric bypass surgery.Translational andrology and urology · 2014Article
- Review of post bariatric surgery effects on common genitourinary physiology.International braz j urol : official journal of the Brazilian Society of UrologyReview
- Kidney stone incidence and metabolic urinary changes after modern bariatric surgery: review of clinical studies, experimental models, and prevention strategies.Surgery for obesity and related diseases : official journal of the American Society for Bariatric SurgeryReview
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4 authors.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundThe objective of this study was to assess predictors for new-onset stone formers after Roux-en-Y gastric bypass (RYGBP).
methodsOne hundred and fifty-one obese patients underwent RYGBP and were followed for 1 year. The analysis comprised two study time points: preoperative (T0) and 1 year after surgery (T1). They were analyzed for urinary stones, blood tests, and 24-h urinary evaluation. Nonparametric tests, logistic regression, and multivariate analysis were conducted using SPSS 17.
resultsMedian BMI decreased from 44.1 to 27.0 kg/m2 (p < 0.001) in the postoperative period. Urinary oxalate (24 versus 41 mg; p < 0.001) and urinary uric acid (545 versus 645 mg; p < 0.001) increased significantly postoperatively (preoperative versus postoperative, respectively). Urinary volume (1310 versus 930 ml; p < 0.001), pH (6.3 versus 6.2; p = 0.019), citrate (268 versus 170 mg; p < 0.001), calcium (195 versus 105 mg; p < 0.001), and magnesium (130 versus 95 mg; p = 0.004) decreased significantly postoperatively (preoperative versus postoperative, respectively). Stone formers increased from 16 (10.6 %) to 27 (17.8%) patients in the postoperative analysis (p = 0.001). Predictors for new stone formers after RYGBP were postoperative urinary oxalate (p = 0.015) and uric acid (p = 0.044).
conclusionsRYGBP determined profound changes in urinary composition which predisposed to a lithogenic profile. The prevalence of urinary lithiasis increased almost 70% in the postoperative period. Postoperative urinary oxalate and uric acid were the only predictors for new stone formers.
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