Evidence map›Paper›PMID 23636826›Full record

ArticleIntensive care medicine2013

Clinical impact of arterial ammonia levels in ICU patients with different liver diseases.

Andreas Drolz, Bernhard Jäger, Marlene Wewalka, Reinhard Saxa, Thomas Horvatits, Kevin Roedl, Thomas Perkmann, Christian Zauner, Ludwig Kramer, Peter Ferenci and 1 more

Abstract read
PubMed Publisher
In one paragraph

Article in Intensive care medicine, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.9field-weighted citation impact, top 9% of its field
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

22 citing papers in PubMed, 55 citations in OpenAlex.

  1. Hepatic Encephalopathy: Current Thoughts on Pathophysiology and Management.Current neurology and neuroscience reports · 2025
    Review
  2. Article
  3. Review
  4. [Liver diseases in the intensive care unit].Medizinische Klinik, Intensivmedizin und Notfallmedizin · 2024
    Review
  5. Review
  6. Hepatic encephalopathy.Nature reviews. Disease primers · 2022
    Review
  7. Observational
  8. Article
  9. An Oral Formulation of the Probiotic,Evidence-based complementary and alternative medicine : eCAM · 2020
    Article
  10. [Acute liver failure].Wiener klinisches Magazin : Beilage zur Wiener klinischen Wochenschrift · 2019
    Review
  11. [Acute liver failure].Medizinische Klinik, Intensivmedizin und Notfallmedizin · 2018
    Review
  12. Review
  13. Article
  14. Liver - guardian, modifier and target of sepsis.Nature reviews. Gastroenterology & hepatology · 2017
    Review
  15. Article
  16. [Hepatocardiac disorders : Interactions between two organ systems].Medizinische Klinik, Intensivmedizin und Notfallmedizin · 2016
    Review
  17. Article
  18. [Statin therapy as a protective factor regarding development of hypoxic hepatitis].Medizinische Klinik, Intensivmedizin und Notfallmedizin · 2014
    Review
  19. Article
  20. [Extracorporeal therapy of patients with liver disease in the intensive care unit].Medizinische Klinik, Intensivmedizin und Notfallmedizin · 2014
    Review
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

11 authors at 2 institutions in 1 country.

Andreas DrolzIntensive Care Unit 13H1, Division of Gastroenterology and Hepatology, Department of Internal Medicine III , Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria. andreas.drolz@meduniwien.ac.at
Bernhard Jäger
Marlene Wewalka
Reinhard Saxa
Thomas Horvatits
Kevin Roedl
Thomas Perkmann
Christian Zauner
Ludwig Kramer
Peter Ferenci
Valentin Fuhrmann
Medical University of Vienna · ATKlinik Hietzing · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeIncreased arterial ammonia levels are associated with high mortality in patients with acute liver failure (ALF). Data on the prognostic impact of arterial ammonia is lacking in hypoxic hepatitis (HH) and scarce in critically ill patients with cirrhosis.

methodsThe patient cohort comprised 72 patients with HH, 43 patients with ALF, 100 patients with liver cirrhosis and 45 patients without evidence for liver disease. Arterial ammonia concentrations were assessed on a daily basis in all patients and the results were compared among these four patient groups and between 28-day survivors and 28-day non-survivors overall and in each group.

resultsOverall 28-day mortality rates in patients with HH, ALF and cirrhosis and in the control group were 54, 30, 49 and 27 %, respectively. Peak arterial ammonia levels differed significantly between transplant-free 28-day survivors and non-survivors in the HH and ALF groups (p < 0.01 for both). Multivariate regression identified peak arterial ammonia concentrations as an independent predictor of 28-day mortality or liver transplantation in patients with HH and ALF, respectively (p < 0.01). There was no association between mortality and arterial ammonia in patients with liver cirrhosis and in the control group. Admission arterial ammonia levels were independently linked to hepatic encephalopathy grades 3/4 in patients with HH (p < 0.01), ALF (p < 0.05) and cirrhosis (p < 0.05), respectively.

conclusionsElevated arterial ammonia levels indicate a poor prognosis in acute liver injury and are associated with advanced HE in HH, ALF and cirrhosis. Arterial ammonia levels provide additional information in the risk assessment of critically ill patients with liver disease.

Indexed as

AdultAgedAmmoniaAustriaBiomarkersCase-Control StudiesDisease-Free SurvivalFemaleHepatitisHumansLiver CirrhosisLiver Failure, AcuteLogistic ModelsMaleMiddle AgedMultivariate AnalysisAmmoniaBiomarkers

Identifiers

PMID23636826
OpenAlexW2054202602

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.