Evidence map›Paper›PMID 30444802›Full record

ArticleTransplantation2019

Deceased Brain Dead Donor Liver Transplantation and Utilization in the United States: Nighttime and Weekend Effects.

Dustin J Carpenter, Mariana C Chiles, Elizabeth C Verna, Karim J Halazun, Jean C Emond, Lloyd E Ratner, Sumit Mohan

Abstract read
In one paragraph

Article in Transplantation, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. First-Person Authorization and Family Objections to Organ Donation.The Journal of medicine and philosophy · 2025
    Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Examining utilization of kidneys as a function of procurement performance.American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons · 2022
    Review
  11. Article
  12. Article
  13. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Dustin J CarpenterDivision of General Surgery, Department of Surgery, Columbia University Medical Center, New York, NY.
Mariana C ChilesDivision of Nephrology, Department of Medicine, Columbia University Medical Center, New York, NY.
Elizabeth C VernaDepartment of Medicine, Division of Digestive and Liver Diseases, Center for Liver Disease and Transplantation, Columbia University Medical Center, New York, NY.
Karim J HalazunDivision of Transplantation and Hepatobiliary Surgery, Department of Surgery, Weil Cornell Medical Center, New York, NY.
Jean C EmondDivision of Transplantation, Department of Surgery, Columbia University Medical Center, New York, NY.
Lloyd E RatnerDivision of Transplantation, Department of Surgery, Columbia University Medical Center, New York, NY.
Sumit MohanDivision of Nephrology, Department of Medicine, Columbia University Medical Center, New York, NY.

Funding

POSTDOCTORAL TRAINING IN CARDIOVASCULAR DISEASET32HL007854 · NHLBI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI Marwah Abdalla, Michael Argenziano · 1996 to 2026
$14.7M
5/14 APOL1 Long-term Kidney Transplantation Outcomes Network (APOLLO) Clinical CenterU01DK116066 · NIDDK · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI Sumit Mohan, Deirdre Sawinski · 2017 to 2026
$2.5M
Increasing Minority Population Awareness through Community Teaching for Improved Organ Donation (IMPACT for Improved Organ Donation)R01DK114893 · NIDDK · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI MOHAN, SUMIT · 2017 to 2021
$1.2M
NHLBI NIH HHS T32 HL007854NIDDK NIH HHS R01 DK114893NIDDK NIH HHS U01 DK116066
6 · The paper itself

Abstract

backgroundUnderstanding factors that contribute to liver discards and nonusage is urgently needed to improve organ utilization.

methodsUsing Scientific Registry of Transplant Recipient data, we studied a national cohort of all US adult, deceased brain dead donor, isolated livers available for transplantation from 2003 to 2016, including organ-specific and system-wide factors that may affect organ procurement and discard rates.

resultsOf 73 686 available livers, 65 316 (88.64%) were recovered for transplant, of which 6454 (9.88%) were ultimately discarded. Livers that were not procured or, on recovery, discarded were more frequently from older, heavier, hepatitis B virus (HCV)+, and more comorbid donors (P < 0.001). However, even after adjustment for organ quality, the odds of liver nonusage were 11% higher on the weekend (defined as donor procurements with cross-clamping occurring from 5:00 PM Friday until 11:59 AM Sunday) compared with weekdays (P < 0.001). Nonuse rates were also higher at night (P < 0.001), defined as donor procurements with cross-clamping occurring from 5:00 PM to 5:00 AM; however, weekend nights had significantly higher nonuse rates compared with weekday nights (P = 0.005). After Share 35, weekend nonusage rates decreased from 21.77% to 19.51% but were still higher than weekday nonusage rates (P = 0.065). Weekend liver nonusage was higher in all 11 United Network of Organ Sharing regions, with an absolute average of 2.00% fewer available livers being used on the weekend compared with weekdays.

conclusionsAlthough unused livers frequently have unfavorable donor characteristics, there are also systemic and operational factors, including time of day and day of the week a liver becomes available, that impact the chance of liver nonprocurement and discard.

Indexed as

Brain DeathAdultAfter-Hours CareAgedDatabases, FactualDonor SelectionFemaleHumansLiver TransplantationMaleMiddle AgedPractice Patterns, Physicians'Risk AssessmentRisk FactorsTime FactorsTissue Donors

Identifiers

PMID30444802
PMCPMC7096151

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.