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PubMed This is a summary of 20 peer-reviewed journal articles Updated
Transplant Surgery

The Gold Standard: Emergency Liver Transplantation

At a Glance

Emergency liver transplantation is the definitive, life-saving treatment for acute liver failure when medical management fails. Patients at immediate risk are listed as Status 1A for priority. Evaluations take 24 to 48 hours, with post-transplant survival rates exceeding 80% at one year.

When a patient’s liver fails to show signs of recovery despite intensive medical care, emergency liver transplantation becomes the definitive, life-saving intervention. In the world of transplantation, Acute Liver Failure (ALF) is treated with a level of urgency that is unique in medicine. While patients with chronic liver disease may wait months or years for a donor, the timeline for an ALF patient is measured in hours and days.

The Emergency Evaluation: Status 1A

In the United States, patients with ALF who are at immediate risk of death are listed as Status 1A [1][2]. This is the highest possible priority on the national waiting list, placing the patient at the “front of the line” for any compatible donor organ that becomes available in their region [3][4].

Because of the extreme urgency, the medical team performs an accelerated evaluation [5]. While a standard transplant workup can take weeks, an emergency ICU evaluation is often completed in 24 to 48 hours [5][6]. This involves:

  • Rapid Medical Screening: Heart and lung checks to ensure the body can survive the surgery [7].
  • Neurological Assessment: Confirming that irreversible brain damage from swelling has not occurred [7][8].
  • Infection Screening: Ensuring there is no active, uncontrolled infection that would make the surgery unsafe [7].

Deciding When to Transplant: King’s College Criteria

Doctors do not take the decision to transplant lightly. They use the King’s College Criteria (KCC) to identify which patients are unlikely to survive without a new liver [9][10]. If a patient meets these criteria, the team will typically move toward listing them for transplant immediately [11].

For Acetaminophen (Tylenol) For All Other Causes (Non-Tylenol)
Blood is too acidic (pH < 7.3) INR > 6.5
OR all three of: OR three of the following:
1. High INR (> 6.5) 1. Age <10 or >40
2. Kidney failure (Creatinine > 3.4) 2. Jaundice >7 days before brain symptoms
3. Severe brain dysfunction (Grade III/IV HE) 3. INR > 3.5
4. Bilirubin > 17.5 mg/dL
5. Unfavorable cause (e.g., drug reaction or unknown cause) [9][10].

APOLT: A “Bridge” to Regeneration

In some specialized centers, surgeons may offer Auxiliary Partial Orthotopic Liver Transplantation (APOLT) [12][13]. Note: This is a rare, highly specialized procedure and may not be available at all transplant centers. Unlike a standard transplant where the old liver is removed, in APOLT, only a part of the old liver is removed and replaced with a partial donor liver [14].

The goal is for the donor liver to do the “work” while the patient’s own liver rests and regenerates [12][15]. If the patient’s native liver successfully heals, the donor liver can be allowed to shrink, and the patient may eventually be able to stop taking anti-rejection medications—an outcome not possible with a standard transplant [12][16].

Survival and Outlook

The survival rate for ALF patients who receive a transplant is high, often exceeding 80-90% at the one-year mark [17][3]. While the initial recovery is intense due to the severity of the illness before surgery, most patients who survive the first few months go on to have an excellent quality of life [18][19]. The key to these outcomes is the “golden window”—performing the transplant after medical management has failed but before the body is too damaged to survive the operation [6][20].

Common questions in this guide

What does it mean to be listed as Status 1A for a liver transplant?
Status 1A is the highest priority on the national transplant waiting list. It is reserved for patients with acute liver failure who are at immediate risk of death, placing them at the front of the line for a compatible donor organ in their region.
How fast does an emergency liver transplant evaluation happen?
Because of the extreme urgency, the medical team performs an accelerated evaluation in the intensive care unit. This workup includes heart, lung, brain, and infection screenings, and is often completed in just 24 to 48 hours.
What are the King's College Criteria?
The King's College Criteria are a set of medical guidelines doctors use to determine if a patient with acute liver failure needs an emergency transplant. They look at factors like blood acidity, kidney function, and severe brain dysfunction to identify patients unlikely to survive without a new liver.
What is an APOLT liver transplant?
APOLT stands for Auxiliary Partial Orthotopic Liver Transplantation. In this specialized procedure, only part of the failing liver is replaced with a partial donor liver. This allows the donor liver to support the body while the patient's own native liver is given a chance to rest, heal, and regenerate.
What is the survival rate after an emergency liver transplant for acute liver failure?
The survival rate for patients who receive a transplant for acute liver failure is high, often exceeding 80 to 90 percent at the one-year mark. Most patients who survive the initial, intensive recovery period go on to have an excellent quality of life.

Questions to Ask Your Doctor

Curated prompts to bring to your next appointment.

  1. 1.Has the patient been listed as 'Status 1A' on the transplant waiting list, and what does that mean for our timeline?
  2. 2.How are we assessing the patient’s neurological health to ensure they are still a candidate for the surgery?
  3. 3.Is an Auxiliary Partial Orthotopic Liver Transplantation (APOLT) an option for this specific cause of liver failure?
  4. 4.What tests are still required to complete the emergency evaluation (e.g., heart scans, infectious disease screens)?
  5. 5.If a donor organ becomes available, what are the primary risks for the patient during the surgery given their current condition?

Questions For You

Tap a prompt to share your answer — we'll use it plus this page's context to start a tailored conversation.

References

References (20)
  1. 1

    Patients With Acute on Chronic Liver Failure Grade 3 Have Greater 14-Day Waitlist Mortality Than Status-1a Patients.

    Sundaram V, Shah P, Wong RJ, et al.

    Hepatology (Baltimore, Md.) 2019; (70(1)):334-345 doi:10.1002/hep.30624.

    PMID: 30908660
  2. 2

    Life expectancy without a transplant for status 1A liver transplant candidates.

    Wood NL, VanDerwerken DN, King EA, et al.

    American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons 2022; (22(1)):274-278 doi:10.1111/ajt.16830.

    PMID: 34487636
  3. 3

    Liver transplantation in acute liver failure.

    Ichai P, Samuel D

    Best practice & research. Clinical gastroenterology 2024; (73()):101968 doi:10.1016/j.bpg.2024.101968.

    PMID: 39709219
  4. 4

    The changing face of liver transplantation for acute liver failure: Assessment of current status and implications for future practice.

    Donnelly MC, Hayes PC, Simpson KJ

    Liver transplantation : official publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society 2016; (22(4)):527-35 doi:10.1002/lt.24403.

    PMID: 26823231
  5. 5

    Intensive Care Management of Acute Liver Failure: Considerations While Awaiting Liver Transplantation.

    Seetharam A

    Journal of clinical and translational hepatology 2019; (7(4)):384-391 doi:10.14218/JCTH.2019.00032.

    PMID: 31915608
  6. 6

    Indian National Association for the Study of Liver Consensus Statement on Acute Liver Failure (Part-2): Management of Acute Liver Failure.

    Anand AC, Nandi B, Acharya SK, et al.

    Journal of clinical and experimental hepatology 2020; (10(5)):477-517 doi:10.1016/j.jceh.2020.04.011.

    PMID: 33029057
  7. 7

    A case report of full recovery from severe cerebral edema secondary to acetaminophen-induced hepatotoxicity in a 13 year old girl.

    Austin EB, Hobbs H, Crouse BA, Lobos AT

    BMC pediatrics 2018; (18(1)):247 doi:10.1186/s12887-018-1233-5.

    PMID: 30060738
  8. 8

    Acute Liver Failure.

    Bunchorntavakul C, Reddy KR

    Clinics in liver disease 2017; (21(4)):769-792 doi:10.1016/j.cld.2017.06.002.

    PMID: 28987262
  9. 9

    Liver Transplantation for Acute Liver Failure- Indication, Prioritization, Timing, and Referral.

    Biswas S, Shalimar

    Journal of clinical and experimental hepatology 2023; (13(5)):820-834 doi:10.1016/j.jceh.2023.01.008.

    PMID: 37693253
  10. 10

    Prognostic Scores in Acute Liver Failure Due to Viral Hepatitis.

    Biswas S, Kumar R, Acharya SK, Shalimar

    Diagnostics (Basel, Switzerland) 2023; (13(6)) doi:10.3390/diagnostics13061035.

    PMID: 36980341
  11. 11

    Absolutely FABulous? FABP-1 in Non-acetaminophen-related Acute Liver Failure.

    Cavazza A, McPhail MJ

    Digestive diseases and sciences 2021; (66(1)):10-11 doi:10.1007/s10620-020-06256-9.

    PMID: 32328891
  12. 12

    Auxiliary Partial Orthotopic Liver Transplantation for Noncirrhotic Metabolic Liver Disease: Reigniting Interest in an Old but New Technique.

    Kasahara M, Sakamoto S, Horikawa R, Fukuda A

    Liver transplantation : official publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society 2019; (25(1)):12-13 doi:10.1002/lt.25388.

    PMID: 30472792
  13. 13

    Auxiliary Liver Transplantation for Acute Liver Failure.

    Shanmugam NP, Al-Lawati T, Kelgeri C, Rela M

    Indian pediatrics 2016; (53(1)):67-9 doi:10.1007/s13312-016-0795-2.

    PMID: 26840680
  14. 14

    Auxiliary partial orthotopic liver transplantation for acute liver failure.

    Shrivastav M, Rammohan A, Reddy MS, Rela M

    Annals of the Royal College of Surgeons of England 2019; (101(3)):e71-e72 doi:10.1308/rcsann.2018.0204.

    PMID: 30482030
  15. 15

    Auxiliary Liver Transplantation as a Transient Treatment for Acute Liver Failure: Two Cases.

    Perdigoto DN, Tomé L, Diogo D, et al.

    GE Portuguese journal of gastroenterology 2018; (26(1)):54-58 doi:10.1159/000487155.

    PMID: 30675504
  16. 16

    Current status of auxiliary partial orthotopic liver transplantation for acute liver failure.

    Bismuth H

    Liver transplantation : official publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society 2017; (23(5)):710 doi:10.1002/lt.24694.

    PMID: 28006865
  17. 17

    Drug induced liver injury: from pathogenesis to liver transplantation.

    Germani G, Battistella S, Ulinici D, et al.

    Minerva gastroenterology 2021; (67(1)):50-64 doi:10.23736/S2724-5985.20.02795-6.

    PMID: 33222432
  18. 18

    Liver Transplant in Acute Liver Failure - Looking Back Over 10 Years.

    Mallick S, Nair K, Thillai M, et al.

    Journal of clinical and experimental hepatology 2020; (10(4)):322-328 doi:10.1016/j.jceh.2019.10.005.

    PMID: 32655235
  19. 19

    Living Donor Liver Transplantation in Acute Liver Failure Patients with Grade IV Encephalopathy: Is Deep Hepatic Coma Still an Absolute Contraindication? A Successful Single-Center Experience.

    Yang HR, Thorat A, Jeng LB, et al.

    Annals of transplantation 2018; (23()):176-181.

    PMID: 29531210
  20. 20

    Continuous Veno-Venous Hemodiafiltration and Plasma Exchange in Infantile Acute Liver Failure.

    Ide K, Muguruma T, Shinohara M, et al.

    Pediatric critical care medicine : a journal of the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies 2015; (16(8)):e268-74 doi:10.1097/PCC.0000000000000511.

    PMID: 26237654

This page explains emergency liver transplantation and evaluation timelines for acute liver failure for educational purposes. Always rely on your transplant team and intensive care physicians for critical medical decisions.

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