Hydration is important post‐renal transplant to maintain adequate renal perfusion and graft function. Adherence to fluid recommendations is challenging given barriers to staying hydrated. There are no studies of adherence to fluid intake recommendations following pediatric renal transplant. Through this pilot study, we sought to determine whether the use of a commercially available interactive water bottle would lead to better adherence to recommended fluid intake and improved kidney functioning post‐transplant relative to standard of care. Participants included 32 youth ages 7–19 ≥1 month post‐kidney transplant randomized to the intervention (HydraCoach ® water bottle) or standard education control group. Laboratory records were reviewed for serum chemistries (Na, BUN , creatinine) at baseline and one‐month follow‐up, and participants recorded daily fluid intake for 28 days. Those in the intervention group were significantly more likely to meet or exceed their fluid target, but this did not translate into better kidney functioning. Participants in the intervention group largely reported satisfaction with the water bottle and were likely to continue its use. While an interactive water bottle providing real‐time feedback may be a promising intervention to help pediatric kidney transplant patients meet fluid goals, it did not appear to impact kidney function
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