Evidence map›Paper›PMID 39828725›Full record

ArticleAnnals of intensive care2025

Impact of frailty and older age on weaning from invasive ventilation: a secondary analysis of the WEAN SAFE study.

Caoimhe M Laffey, Rionach Sheerin, Omid Khazaei, Bairbre A McNicholas, Tài Pham, Leo Heunks, Giacomo Bellani, Laurent Brochard, Dana Tomescu, Andrew J Simpkin and 2 more

Erratum issuedAbstract read
In one paragraph

Article in Annals of intensive care, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 18 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 3 pooled it
–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

18 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. [Frailty in intensive care medicine].Medizinische Klinik, Intensivmedizin und Notfallmedizin · 2026
    Pooled it
  2. Pooled it
  3. Pooled it
  4. Observational
  5. Article
  6. Article
  7. Observational
  8. Review
  9. Article
  10. Article
  11. Observational
  12. Frail to Fail: More Support for Less Reserve-Can Clinical Frailty Scale Predict Path to Liberation?Indian journal of critical care medicine : peer-reviewed, official publication of Indian Society of Critical Care Medicine · 2026
    Article
  13. Article
  14. Clinical Outcomes and Long-Term Survival in Patients Undergoing Prolonged Weaning.Respiration; international review of thoracic diseases · 2026
    Article
  15. Article
  16. Article
  17. Article
  18. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors.

Caoimhe M Laffey *Anaesthesia and Intensive Care Medicine, School of Medicine, University of Galway, Galway, Ireland.
Rionach Sheerin *Anaesthesia and Intensive Care Medicine, School of Medicine, University of Galway, Galway, Ireland.
Omid KhazaeiSchool of Mathematical and Statistical Sciences, University of Galway, Galway, Ireland.
Bairbre A McNicholasAnaesthesia and Intensive Care Medicine, School of Medicine, University of Galway, Galway, Ireland.
Tài PhamService de médecine intensive-réanimation, AP-HP, Hôpital de Bicêtre, DMU CORREVE, FHU SEPSIS, Groupe de recherche CARMAS, Hôpitaux Universitaires Paris-Saclay, Le Kremlin-Bicêtre, France.
Leo HeunksDepartment of Intensive Care, Radboud University Medical Center, Nijmegen, The Netherlands.
Giacomo BellaniSchool of Medicine and Surgery, University of Trento, Trento, Italy.
Laurent BrochardInterdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Canada.
Dana TomescuDepartment of Anesthesia and Intensive Care, "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania.
Andrew J SimpkinSchool of Mathematical and Statistical Sciences, University of Galway, Galway, Ireland.
John G LaffeyAnaesthesia and Intensive Care Medicine, School of Medicine, University of Galway, Galway, Ireland. jlaffey@universityofgalway.ie.
WEAN SAFE Investigators

Funding

European Respiratory Society European Respiratory SocietyEuropean Society of Intensive Care Medicine European Society of Intensive Care MedicineHealth Research Board Health Research Board
6 · The paper itself

Abstract

objectiveTo understand the impact of both frailty and chronologic age on outcomes of weaning from invasive mechanical ventilation (MV).

methodsThe study population consisted of patients enrolled in the 'WorldwidE. AssessmeNt of Separation of pAtients From ventilatory assistancE (WEAN SAFE) study. We defined 4 non-overlapping groups, namely: 'frail' (clinical frailty scale [CFS] score > 4; age < 80 years); 'elderly' (CFS ≤ 4; age ≥ 80y), 'frail \elderly' (CFS > 4; age ≥ 80 years), and a 'not frail or elderly' population. The primary outcome was the impact of frailty and older age on delayed weaning and failed weaning from invasive MV. Secondary outcomes included the impact of frailty and age on ICU and hospital survival.

resultsIn the study population, 760 (17%) were frail, while 360 (8%) were elderly, 197 (4%) were frail and elderly, while 3,176 (70%) were not frail or elderly. The frail and elderly cohorts were more likely to be female, had hypoxemic/hypercapnic respiratory failure or sepsis, and had more comorbidities. The proportion of delayed weaning and of failed weaning from invasive MV was significantly higher in the frail (28 and 23%), the elderly (25 and 19%), and the frail and elderly groups (22% and 25%), compared to the not frail or elderly population (12% and 13%, P < 0.01). ICU and hospital mortality was higher in the frail (21 and 33%), the elderly (19 and 31%), and the frail and elderly groups (26 and 46%), compared to the not frail or elderly population (12% and 18%, P < 0.001). In multivariate analyses, there was an independent association between frailty and delayed weaning initiation and weaning failure. Old age was independently associated with risk of weaning failure.

conclusionsFrailty status had a more consistent impact than older age on weaning outcomes. However, overall outcomes in these cohorts are encouraging once separation attempts have been initiated.

Indexed as

Clinical frailty scaleElderlyFrailtyInvasive mechanical ventilationOlder ageVentilator liberationVentilator weaning

Identifiers

PMID39828725
PMCPMC11743409

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.