Assessment of potential peritonitis risk factors in pediatric patients receiving maintenance peritoneal dialysis.

BACKGROUND: Many recommendations regarding peritonitis prevention in international consensus guidelines are opinion-based rather than evidence-based. The aim of this study was to examine the impact of peritoneal dialysis (PD) catheter insertion technique, timing of gastrostomy placement, and use of prophylactic antibiotics prior to dental, gastrointestinal, and genitourinary procedures on the risk of peritonitis in pediatric patients on PD. METHODS: We conducted a retrospective cohort study of pediatric patients on maintenance PD using data from the SCOPE collaborative from 2011 to 2022. Data pertaining to laparoscopic PD catheter insertion (vs. open), gastrostomy placement after PD catheter insertion (vs. before/concurrent), and no prophylactic antibiotics (vs. yes) were obtained. Multivariable generalized linear mixed modeling was used to assess the relationship between each exposure and occurrence of peritonitis. RESULTS: There was no significant association between PD catheter insertion technique and development of peritonitis (aOR = 2.50, 95% CI 0.64-9.80, p = 0.19). Patients who had a gastrostomy placed after PD catheter insertion had higher rates of peritonitis, but the difference was not statistically significant (aOR = 3.19, 95% CI 0.90-11.28, p = 0.07). Most patients received prophylactic antibiotics prior to procedures, but there was no significant association between prophylactic antibiotic use and peritonitis (aOR = 1.74, 95% CI 0.23-13.11, p = 0.59). CONCLUSIONS: PD catheter insertion technique does not appear to have a significant impact on peritonitis risk. Timing of gastrostomy placement may have some impact on peritonitis risk. Further study must be done to clarify the effect of prophylactic antibiotics on peritonitis risk. A higher resolution version of the Graphical abstract is available as Supplementary information.

The cost of hospitalizations for treatment of hemodialysis catheter-associated blood stream infections in children: a retrospective cohort study.

BACKGROUND: Hospitalization costs for treatment of hemodialysis (HD) catheter-associated blood stream infections (CA-BSI) in adults are high. No studies have evaluated hospitalization costs for HD CA-BSI in children or identified factors associated with high-cost hospitalizations. METHODS: We analyzed 160 HD CA-BSIs from the Standardizing Care to Improve Outcomes in Pediatric End-stage Kidney Disease (SCOPE) collaborative database linked to hospitalization encounters in the Pediatric Health Information System (PHIS) database. Charge-to-cost ratios were used to convert hospitalization charges reported in PHIS database to estimated hospital costs. Generalized linear mixed modeling was used to assess the relationship between higher-cost hospitalization (cost above 50th percentile) and patient and clinical characteristics. Generalized linear regression models were used to assess differences in mean service line costs between higher- and lower-cost hospitalizations. RESULTS: The median (IQR) length of stay for HD CA-BSI hospitalization was 5 (3-10) days. The median (IQR) cost for HD CA-BSI hospitalization was $18,375 ($11,584-$36,266). ICU stay (aOR 5.44, 95% CI 1.62-18.26, p = 0.01) and need for a catheter procedure (aOR = 6.08, 95% CI 2.45-15.07, p < 0.001) were associated with higher-cost hospitalization. CONCLUSIONS: Hospitalizations for HD CA-BSIs in children are often multiple days and are associated with substantial costs. Interventions to reduce CA-BSI may reduce hospitalization costs for children who receive chronic HD. A higher resolution version of the Graphical abstract is available as Supplementary information.

A donor risk index for graft loss in pediatric living donor kidney transplantation.

Pediatric kidney transplant candidates often have multiple potential living donors (LDs); no evidence-based tool exists to compare potential LDs, or to decide between marginal LDs and deceased donor (DD) kidney transplantation (KT). We developed a pediatric living kidney donor profile index (P-LKDPI) on the same scale as the DD KDPI by using Cox regression to model the risk of all-cause graft loss as a function of living donor characteristics and DD KDPI. HLA-B mismatch (adjusted hazard ratio [aHR] per mismatch = 1.04 1.271.55 ), HLA-DR mismatch (aHR per mismatch = 1.02 1.231.49 ), ABO incompatibility (aHR = 1.20 3.268.81 ), donor systolic blood pressure (aHR per 10 mm Hg = 1.01 1.071.18 ), and donor estimated GFR (eGFR; aHR per 10 mL/min/1.73 m2 = 0.88 0.940.99 ) were associated with graft loss after LDKT. Median (interquartile range [IQR]) P-LKDPI was -25 (-56 to 12). 68% of donors had P-LKDPI <0 (less risk than any DD kidney) and 25% of donors had P-LKDPI >14 (more risk than median DD kidney among pediatric KT recipients during the study period). Strata of LDKT recipients of kidneys with higher P-LKDPI had a higher cumulative incidence of graft loss (39% at 10 years for P-LDKPI ≥20, 28% for 20> P-LKDPI ≥-20, 23% for -20 > P-LKDPI ≥-60, 19% for P-LKDPI <-60 [log rank P < .001]). The P-LKDPI can aid in organ selection for pediatric KT recipients by allowing comparison of potential LD and DD kidneys.