Reloxaliase in Enteric Hyperoxaluria - The Recent Brake.

Lemoine, Sandrine; Bacchetta, Justine · NEJM Evid · 2022

review · Level V

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Abstract

Hyperoxaluria is defined as urinary oxalate (U<sub>Ox</sub>) excretion greater than 0.5 mmol per day. Hyperoxaluria can result from genetic causes, and these are known as primary hyperoxalurias. Secondary hyperoxaluria results from high intake of oxalate-rich foods (e.g., chocolate, nuts, spinach), lack of calcium in the diet to bind oxalate in the gut, or oxalate malabsorption; these forms are termed enteric hyperoxaluria. Usually only primary and enteric hyperoxalurias lead to the complications of kidney stones, crystal nephropathy, chronic kidney disease (CKD), and systemic oxalosis.<sup>1</sup>.