[Correspondence] PUSH trial limits: why fluids still matter

We read with interest the Article1 by Alana C Desai and colleagues on the results of the well designed, large-scale Prevention of Urinary Stones with Hydration (PUSH) trial, which evaluated a multicomponent intervention to improve fluid intake and idiopathic urinary stone recurrence in adolescents and adults.

Both the Article and the related Comment2 concluded that increasing daily urinary volume failed to reduce stone recurrence; therefore, alternative prevention strategies beyond solely increasing fluid intake should be sought. ...