Evidence map›Paper›PMID 29178915›Full record

ArticleCritical care (London, England)2017

Longitudinal wall fractional shortening: an M-mode index based on mitral annular plane systolic excursion (MAPSE) that correlates and predicts left ventricular longitudinal strain (LVLS) in intensive care patients.

Stephen J Huang, Iris Ting, Andrea M Huang, Michel Slama, Anthony S McLean

Abstract read
In one paragraph

Article in Critical care (London, England), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 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

22 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Observational
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  7. Review
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  13. Septic Cardiomyopathy.Reviews in cardiovascular medicine · 2024
    Review
  14. Observational
  15. Article
  16. Observational
  17. Septic cardiomyopathy: Diagnosis and management.Journal of intensive medicine · 2022
    Review
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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

5 authors.

Stephen J HuangDepartment of Intensive Care Medicine, Nepean Hospital, University of Sydney, Sydney, NSW, 2747, Australia. Stephen.huang@sydney.edu.au.
Iris TingCardiovascular Ultrasound Laboratory, Nepean Hospital, Sydney, NSW, Australia.
Andrea M HuangSydney Medical Program, Nepean Clinical School, University of Sydney, Sydney, NSW, Australia.
Michel SlamaDepartment of Intensive Care Medicine, Nepean Hospital, University of Sydney, Sydney, NSW, 2747, Australia.
Anthony S McLeanDepartment of Intensive Care Medicine, Nepean Hospital, University of Sydney, Sydney, NSW, 2747, Australia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLeft ventricular longitudinal strain (LVLS) is a modern measurement for LV function. However, strain measurement is often difficult in critically ill patients. We sought to show LVLS can be estimated using M-mode-derived longitudinal wall fractional shortening (LWFS), which is less dependent on image quality and is easier to perform in critically ill patients.

methodsTransthoracic echocardiographic records were retrospectively screened and 80 studies suitable for strain and M-mode measurements in the apical 4-chamber view were selected. Longitudinal wall fractional shortening was derived from conventional M-mode (LWFS) and curved anatomical M-mode (CAMMFS). The relationships between LVLS and mitral annular plane systolic excusion (MAPSE) and M-mode-derived fractional shortening were examined using univariate generalized linear model in a training set (n = 50) and was validated in a separate validation set (n = 30).

resultsMAPSE, CAMMFS, and LWFS demonstrated very good correlations with LVLS (r = 0.852, 0.875 and 0.909, respectively). LWFS was the best unbiased predictor for LVLS (LVLS = 1.180 x LWFS - 0.737, P < 0.001). Intra- and inter-rater agreement and reliability for LWFS measurement were good.

conclusionsLVLS can be estimated by LWFS in the critically ill patients. It provides a fast and accurate prediction of LVLS. LWFS is a reproducible and reliable measurement which can be used as a potential index in place of LVLS in the critically ill population.

Indexed as

AdultAgedAustraliaCritical IllnessEchocardiographyFemaleHumansIntensive Care UnitsMaleMiddle AgedReproducibility of ResultsRetrospective StudiesStroke VolumeSystoleVentricular Dysfunction, LeftLeft ventricular functionLongitudinal strainMAPSEM-modeSpeckle tracking

Identifiers

PMID29178915
PMCPMC5702151

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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.