The Future is in Focus: Nurturing Innovation and Collaboration in Pediatric Liver Transplantation
Room: FOYER

Poster #6 Hypothermic oxygenated perfusion: Standard of care in pediatric liver transplantation

Ane M Andres, Spain

Pediatric Transplant Surgeon
Pediatric Surgery
La Paz University Hospital

Biography

Pediatric Surgeon. Pediatric Transplant Surgeon involved in Liver and Intestinal Transplantation, PhD. Also involved in  the Intestinal Rehabilitation Field. Pediatric Surgery Residency from 2002-2007 at Hospital La Paz (Madrid, Spain). Visitor fellow in Omaha  (nebraska) in 2007-2008. Pediatric Transplant Surgeon  from 2009 to 2025.   Member of several Transplant Assocations (IRTA; IPTA, SETH; SET; ESOT...). Part of several ERNs (TrasnplantChild, ERNICA). Associated Teacher at University Autonoma of Madrid from 2010. 

Abstract

Hypothermic oxygenated perfusion: Standard of care in pediatric liver transplantation

Ane Andres1,4,5, Maria Velayos1,4,5, Javier Serradilla1,4,5, Alba Sanchez-Galan1,5, Jose Encinas1,4, Luis Seas1, Carlos De la Torre1, Iñigo Velasco3, Pilar Guillermo3, Ana Nombela3, Esteban Frauca2, Francisco Hernandez-Oliveros1,4,5.

1Pediatric Surgery, La Paz University Hospital, MADRID, Spain; 2Pediatric Hepatology, La Paz University Hospital, MADRID, Spain; 3Cardiac Surgery. Perfusion Unit, La Paz University Hospital, MADRID, Spain; 4La Paz Research Institute, La Paz University Hospital, MADRID, Spain; 5TransplantChild, La Paz University Hospital, MADRID, Spain

Aim: To evaluate indications and outcomes of hypothermic oxygenated perfusion (HOPE) in a pediatric liver transplantation (PLT) program. Methods: A retrospective analysis was performed on pediatric recipients (3 weeks–18 years) who received HOPE-treated liver grafts (2024-2025). Indications  included prolonged cold ischemia time (>7 hours), atypical or ex-situ split graft reductions, and donation after circulatory death (DCD). Results: HOPE was used in  35/78 liver transplants. Median total cold preservation time (static cold storage plus HOPE) was 341 minutes (273–415), with a median HOPE duration of 105 minutes (93–129.5). Six grafts were from DCD donors, four were retransplants, one was a combined liver–kidney transplant, and one was an auxiliary split graft  from a DCD donor. Graft reduction was required in 28 cases, including 11 atypical reductions and 17 ex-situ split transplants, three neonates requiring  monosegment grafts. One multivisceral graft was converted to a liver graft during bench surgery. Overall patient survival was 94%; two deaths were due to causes unrelated to transplantation. Reperfusion was uneventful in all cases, with soft grafts and early bile production. A trend toward lower peak transaminase levels was observed in HOPE-treated grafts (p>0.05). Vascular/biliary complications occurred in 5.7%/11.5%  of patients, all surgically corrected. No ischemic cholangiopathy or cholangitis occurred. Initial primary graft dysfunction was observed in 44%, with normalization of transaminases by postoperative day three in 100%. Conclusion: HOPE is a safe and effective strategy and has become standard of care in our program for suboptimal, reduced, and complex pediatric liver grafts.

HEPA: Iiver pediatric patients´association.

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