USB drives for communication of medical information in a pediatric dialysis unit.

We evaluated the feasibility of using universal serial bus (USB) drives for communicating medical information between parents of children receiving dialysis and medical personnel during clinical encounters. When surveyed, parents and pediatric resident physicians supported the use of USB drives and were willing to use the devices. The utilization rate of USB drives was 57%.

Acute Hypocalcemia and Metabolic Alkalosis in Children on Cation-Exchange Resin Therapy.

BACKGROUND: Sodium polystyrene sulfonate (SPS) is a chelating agent used for the treatment of hyperkalemia. SPS has a wide range of exchange capacity requiring close monitoring of serum electrolytes. We observed two patients who developed acute hypocalcemia and increased metabolic alkalosis after initiating SPS therapy. We report these cases to draw attention to the potential risk of this medication in pediatric patients. CASE DIAGNOSIS/TREATMENT: Two children with chronic kidney disease on dialysis were started on SPS for hyperkalemia. Within a week after initiation of the medication, both patients developed hypocalcemia on routine labs without overt clinical manifestations. The hypocalcemia was rapidly corrected with oral supplementation and discontinuation of SPS. CONCLUSIONS: Severe hypocalcemia can develop after SPS therapy. The metabolic alkalosis in these patients associated with the hypocalcemia put them at increased risk for complications. Hence, careful attention must be paid to the state of calcium metabolism in all patients receiving SPS. Often calcium supplementation is required to maintain normal calcium levels.