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Survival after reduced-size liver transplantation is dependent on pretransplant status
1Department of Surgery, Hospital for Sick Children, University of Toronto, Ontario, Canada.
Insights
Reduced-size liver transplantation (RSLT) offers a vital solution for pediatric patients awaiting organ transplants. This technique significantly improves organ availability for critically ill children, addressing donor shortages.
Area of Science:
- Pediatric Surgery
- Transplantation Medicine
- Organ Donation
Background:
- Pediatric orthotopic liver transplantation (OLT) faces challenges like donor organ size mismatch and long waiting lists.
- These issues contribute to patient deterioration and mortality before transplantation.
Purpose of the Study:
- To evaluate the efficacy and impact of reduced-size liver transplantation (RSLT) in improving organ access for pediatric patients.
- To analyze outcomes in children undergoing RSLT compared to full-size liver transplantation (FSLT).
Main Methods:
- Retrospective analysis of 68 OLTs in 58 children performed since July 1988.
- Comparison of patient demographics, transplant types (RSLT vs. FSLT), and donor-recipient weight ratios.
- Analysis of blood product requirements in RSLT versus FSLT groups.
Main Results:
- RSLT was performed in 53% of cases since 1988, particularly in children weighing less than 10 kg (71.4%).
- RSLT recipients were significantly lighter (13.5 kg) than FSLT recipients (23.8 kg).
- The donor to recipient weight ratio was significantly higher in the RSLT group (4.21:1) compared to FSLT (1.17:1).
- RSLT required significantly higher intraoperative and early postoperative blood product replacement.
Conclusions:
- Reduced-size liver transplantation is a crucial strategy to overcome donor organ shortages in pediatric liver transplantation.
- RSLT expands the donor pool and provides timely organ access for critically ill children.
- While RSLT involves higher blood product usage, it offers a life-saving alternative for pediatric patients with end-stage liver disease.
Abstract:
Orthotopic liver transplantation (OLT) in children is characterized by unique problems including a shortage of compatible-size donors resulting in long waiting periods, significant deterioration while waiting, and death before transplantation. To improve the chances of obtaining an organ for the sickest patients, reduced-size liver transplantation (RSLT) was offered to all hospital-bound children starting in July 1988. Since then, 68 OLTs were performed in 58 children. Thirty-six RSLTs were done in 30 children (42% of total 86 OLT, 53% since 1988). The mean weight of the RSLT patients was 13.5 +/- 10.4 kg versus 23.8 +/- 21.9 kg in the full-size (FSLT) group (P < .05). Twenty-five of 39 transplants (71.4%) done in children < 10 kg were RSLTs in comparison to only 10 of 47 (21.3%) in patients > 10 kg (P < .0005). Since 1988, 25 of 34 (73.5%) of all transplants in children < 10 kg have been RSLTs. Average donor to recipient weight ratio in the RSLT group was 4.21:1 versus 1.17:1 in the FSLT group (P < .0001). RSLT was done as a primary procedure in 26 patients and as a retransplant in 10. Mean blood product replacement was significantly higher in the RSLT group both intraoperatively (515.7 +/- 490.9 v 177.2 +/- 278.3 mL/kg, P < .005) and during the first 24 hours postoperation (50.5 +/- 81.8 mL/kg v 16.4 +/- 28.5 mL/kg, P < .05).(ABSTRACT TRUNCATED AT 250 WORDS)