According to a recent meta-analysis of 8 studies (1511 children), better hydration may reduce the risk of bad outcomes for hemolytic uremic syndrome (HUS): From JAMA Pediatrics: Shiga Toxin-Producing E coli, Hydration Status and Outcomes of Patients Infected With Shiga Toxin–Producing Escherichia coliA Systematic Review and Meta-analysis
Results: A hematocrit value greater than 23% as a measure of hydration status at presentation with HUS was associated with the development of oligoanuric HUS (OR, 2.38 [95% CI, 1.30-4.35]; I2 = 2%), renal replacement therapy (OR, 1.90 [95% CI, 1.25-2.90]; I2 = 17%), and death (OR, 5.13 [95% CI, 1.50-17.57]; I2 = 55%). Compared with putatively hydrated patients, clinically dehydrated patients had an OR of death of 3.71 (95% CI, 1.25-11.03; I2 = 0%). Intravenous fluid administration up to the day of HUS diagnosis was associated with a decreased risk of renal replacement therapy (OR, 0.26 [95% CI, 0.11-0.60]).
Conclusion from abstract: Two predictors of poor outcomes for STEC-infected children were identified: (1) the lack of intravenous fluid administration prior to establishment of HUS and (2) a higher hematocrit value at presentation. These findings point to an association between dehydration and adverse outcomes for children with HUS.
This study is in agreement with a prior study referenced on this blog: Changing Paradigm in Hemolytic Uremic Syndrome