Evidence map›Paper›PMID 39905459›Full record

ArticleCritical care (London, England)2025

Trendelenburg position is a reasonable alternative to passive leg raising for predicting volume responsiveness in mechanically ventilated patients in the ICU.

Zhiyong Wang, Jie Zhang, Jing Zhao, Yaxuan Wu, Shiya Zhang, Chengfen Yin, Xinjing Gao, Lei Xu

Abstract read
In one paragraph

Article in Critical care (London, England), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
  2. 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

8 authors.

Zhiyong WangDepartment of Critical Care Medicine, Tianjin Third Central Hospital, No. 83, Jintang Road, Hedong District, Tianjin, 300170, China. waizh1018@126.com.
Jie ZhangDepartment of Critical Care Medicine, Tianjin Third Central Hospital, No. 83, Jintang Road, Hedong District, Tianjin, 300170, China.
Jing ZhaoDepartment of Critical Care Medicine, Tianjin Third Central Hospital, No. 83, Jintang Road, Hedong District, Tianjin, 300170, China.
Yaxuan WuDepartment of Critical Care Medicine, Tianjin Third Central Hospital, No. 83, Jintang Road, Hedong District, Tianjin, 300170, China.
Shiya ZhangDepartment of Critical Care Medicine, Tianjin Third Central Hospital, No. 83, Jintang Road, Hedong District, Tianjin, 300170, China.
Chengfen YinDepartment of Critical Care Medicine, Tianjin Third Central Hospital, No. 83, Jintang Road, Hedong District, Tianjin, 300170, China.
Xinjing GaoDepartment of Critical Care Medicine, Tianjin Third Central Hospital, No. 83, Jintang Road, Hedong District, Tianjin, 300170, China.
Lei XuDepartment of Critical Care Medicine, Tianjin Third Central Hospital, No. 83, Jintang Road, Hedong District, Tianjin, 300170, China. nokia007008@163.com.

Funding

Research Project on the Integration of Traditional Chinese Medicine and Western Medicine by Tianjin Health Commission 2023221Tianjin Key Medical Discipline(Specialty)construction Project TJYXZDXK-035ATianjin Science and Technology Project 21YCFBJC01200
6 · The paper itself

Abstract

backgroundPassive leg raising (PLR) is a well-recognized method for assessing volume responsiveness in the intensive care unit (ICU); however, it has some limitations. The physiology of the cardiac preload induced by the Trendelenburg position and PLR is similar. The Trendelenburg position can be initiated from the supine position and then tilted downward (TREND

methodsThe study was a prospective single-center cohort study conducted in a comprehensive ICU. The study consisted of the following sequential steps: (1) baseline-1: supine position with a 0° bed angulation; (2) Trendelenburg position: 15° downward bed angulation; (3) baseline-2: the same position as baseline-1; (4) reverse Trendelenburg position: 15° upward bed angulation; (5) Trendelenburg position: 15° downward bed angulation; (6) baseline-3: the same position as baseline-1; (7) semi-recumbent position: trunk elevated at 45°; (8) PLR: lower limbs elevated at 45° and trunk in the supine position; (9) baseline-4: the same position as baseline-1; (10) volume loading test: 250 ml of 4% albumin was infused over 10 min. At each time point, hemodynamic parameters were monitored using pulse contour analysis. A positive volume response was defined as an increase of at least 15% in SVI on pulse contour monitoring from baseline-4 after the volume loading test. The receiver operating characteristic curves were performed for ΔSVI.

resultsIn this study, 36 patients were included for analysis, and of these, 15 patients (42%) were volume-responsive. TREND

conclusionsThe Trendelenburg position (TREND

trial registrationChiCTR2300067694. Registered on January 18, 2023.

Indexed as

Head-Down TiltLegPatient PositioningRespiration, ArtificialAgedCohort StudiesFemaleHumansIntensive Care UnitsMaleMiddle AgedProspective StudiesStroke VolumeSupine PositionMechanically ventilated patientsPassive leg raisingTrendelenburg positionVolume responsiveness

Identifiers

PMID39905459
PMCPMC11796185

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.