Sodium Citrate 4% Locking Solution for Children Requiring Home Parenteral Nutrition

In this prospective observational cohort study of pediatric patients requiring home parenteral nutrition for intestinal failure, participants will be enrolled from the pediatric intestinal rehabilitation clinic, and data collection will be obtained from the electronic medical record. Participant will receive daily sodium citrate 4% catheter locking solution for CLABSI prophylaxis, instead of heparin locks. Participants will be monitored for 12 months for adverse events, including CLABSI. Participants will have the same routine laboratory schedule and monthly outpatient follow up. After 12 months, participants will be given the option to continue to use sodium citrate 4% locks after the initial study period if no serious adverse events have occurred. The investigators anticipate enrolling 10-15 participants per year and anticipate enrollment to continue for 3-5 years. Sodium citrate locks: 3 ml vials of locking solution will be prepared by the infusion pharmacy using commercially available 4% sodium citrate IV fluid (available in 500 ml bags). The sodium citrate locks will be instilled into the central catheter daily during the period that parenteral nutrition is not infusing, and will be withdrawn and disposed of prior to resuming infusion of parenteral nutrition. If subjects are hospitalized, sodium citrate locks will be temporarily held during the duration of the inpatient stay, and will be resumed once the participant is discharged home.