Center-level Variation in HLA-incompatible Living Donor Kidney Transplantation Outcomes.

Journal Article (Journal Article;Multicenter Study)

BACKGROUND: Desensitization protocols for HLA-incompatible living donor kidney transplantation (ILDKT) vary across centers. The impact of these, as well as other practice variations, on ILDKT outcomes remains unknown. METHODS: We sought to quantify center-level variation in mortality and graft loss following ILDKT using a 25-center cohort of 1358 ILDKT recipients with linkage to Scientific Registry of Transplant Recipients for accurate outcome ascertainment. We used multilevel Cox regression with shared frailty to determine the variation in post-ILDKT outcomes attributable to between-center differences and to identify any center-level characteristics associated with improved post-ILDKT outcomes. RESULTS: After adjusting for patient-level characteristics, only 6 centers (24%) had lower mortality and 1 (4%) had higher mortality than average. Similarly, only 5 centers (20%) had higher graft loss and 2 had lower graft loss than average. Only 4.7% of the differences in mortality (P < 0.01) and 4.4% of the differences in graft loss (P < 0.01) were attributable to between-center variation. These translated to a median hazard ratio of 1.36 for mortality and 1.34 of graft loss for similar candidates at different centers. Post-ILDKT outcomes were not associated with the following center-level characteristics: ILDKT volume and transplanting a higher proportion of highly sensitized, prior transplant, preemptive, or minority candidates. CONCLUSIONS: Unlike most aspects of transplantation in which center-level variation and volume impact outcomes, we did not find substantial evidence for this in ILDKT. Our findings support the continued practice of ILDKT across these diverse centers.

Full Text

Duke Authors

Cited Authors

  • Jackson, KR; Long, J; Motter, J; Bowring, MG; Chen, J; Waldram, MM; Orandi, BJ; Montgomery, RA; Stegall, MD; Jordan, SC; Benedetti, E; Dunn, TB; Ratner, LE; Kapur, S; Pelletier, RP; Roberts, JP; Melcher, ML; Singh, P; Sudan, DL; Posner, MP; El-Amm, JM; Shapiro, R; Cooper, M; Verbesey, JE; Lipkowitz, GS; Rees, MA; Marsh, CL; Sankari, BR; Gerber, DA; Wellen, J; Bozorgzadeh, A; Gaber, AO; Heher, E; Weng, FL; Djamali, A; Helderman, JH; Concepcion, BP; Brayman, KL; Oberholzer, J; Kozlowski, T; Covarrubias, K; Desai, N; Massie, AB; Segev, DL; Garonzik-Wang, J

Published Date

  • February 1, 2021

Published In

Volume / Issue

  • 105 / 2

Start / End Page

  • 436 - 442

PubMed ID

  • 32235255

Pubmed Central ID

  • PMC8080262

Electronic International Standard Serial Number (EISSN)

  • 1534-6080

Digital Object Identifier (DOI)

  • 10.1097/TP.0000000000003254

Language

  • eng

Conference Location

  • United States