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Abstract
Enteric hyperoxaluria causes tubular deposition of calcium oxalate crystals and severe chronic interstitial nephritis.
We describe a patient with pre-terminal renal failure due to oxalate nephropathy after ileal resection. Increased oral hydration, low oxalate diet, and oral calcium carbonate and potassium citrate supplements resulted in a significant improvement of renal function. During the three-year follow-up, urinary oxalate concentration was repeatedly reduced below the crystallization threshold and serum creatinine decreased from 4.5 to 1.7 mg/dL.
This case illustrates the benefit of combining and optimizing dietary and medical management in enteric hyperoxaluria, even in patients with advanced chronic kidney disease.