Uric Acid Stone Dissolution Peaked at pH 7.2 - Takeaways - MDSpire

Uric Acid Stone Dissolution Peaked at pH 7.2

In vitro study found dissolution rates increased sharply above pH 6.5 and were tenfold higher after stone fragmentation.

  • By

  • Mouj Hijazi

  • May 12, 2026

  • 4 min

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  • 1

    Urine alkalinization to a pH of 7.0 to 7.2 optimizes uric acid stone dissolution, aligning with EAU guidelines.

  • 2

    Dissolution rates increased sharply as pH rose above 6.5, with significant increases noted at pH 7.2.

  • 3

    Ground uric acid stones showed approximately tenfold higher dissolution rates compared to intact stones.

  • 4

    Lowering uric acid saturation significantly enhanced dissolution rates at pH levels of 6.5 and higher.

  • 5

    The study's in vitro design limits its applicability to clinical settings, necessitating further research.

Original Source(s)

Uric Acid Stone Dissolution Peaked at pH 7.2

  • by Mouj Hijazi

  • May 12, 2026

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