Transplantation · 2025
Liver Discard Rate Attributable to Conservative Estimations of Steatosis: An Inference-based Approach.
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Guo Hao, Gala-Lopez Boris L, Alwayn Ian P J, Hewitt Kevin C
Аннотация
BACKGROUND: On-site conservative estimations of steatosis could result in the unnecessary discard of donor livers. This study applied the body mass index as an independent statistical indicator to determine the extent of this problem. We aimed to quantitatively evaluate if decisions based nonbiopsy donor liver assessments are more conservative (inclined to reject marginal fatty livers) than biopsy-based evaluations.
METHODS: The study processed intradatabase comparisons using 177 081 datasets from Organ Procurement and Transplantation Network spanning 2004 to 2022 September in the United States. Postmatching body mass index was applied as an independent indicator of statistical risk of hepatic steatosis (HS).
RESULTS: A total of 7420, 4990, 5994, and 7523 pair of donors with/without biopsy records were matched in 2004-2010, 2011-2014, 2015-2018, and 2019-2022 September, respectively. Consistent with our hypothesis, absent biopsies and evaluations before and during organ procurement were observed to be more conservative, leading to the discard of 16.4% (2004-2010), 16.9% (2011-2014), 10.6% (2015-2018), and 10.3% (2019-2022 September) of potential donor livers.
CONCLUSIONS: The study concludes that there was a significant (10.3%-16.9%) disparity caused by on-site nonbiopsy assessments of HS, leading to the unnecessary discard of potential donor livers. The findings emphasize the need to develop more accurate intraoperative techniques for assessing HS to optimize donor liver procurement.
METHODS: The study processed intradatabase comparisons using 177 081 datasets from Organ Procurement and Transplantation Network spanning 2004 to 2022 September in the United States. Postmatching body mass index was applied as an independent indicator of statistical risk of hepatic steatosis (HS).
RESULTS: A total of 7420, 4990, 5994, and 7523 pair of donors with/without biopsy records were matched in 2004-2010, 2011-2014, 2015-2018, and 2019-2022 September, respectively. Consistent with our hypothesis, absent biopsies and evaluations before and during organ procurement were observed to be more conservative, leading to the discard of 16.4% (2004-2010), 16.9% (2011-2014), 10.6% (2015-2018), and 10.3% (2019-2022 September) of potential donor livers.
CONCLUSIONS: The study concludes that there was a significant (10.3%-16.9%) disparity caused by on-site nonbiopsy assessments of HS, leading to the unnecessary discard of potential donor livers. The findings emphasize the need to develop more accurate intraoperative techniques for assessing HS to optimize donor liver procurement.