Evidence map›Paper›PMID 38037619›Full record

ArticleComputing in cardiology2022

The Nonlinear Dynamic Response of Intrapartum Fetal Heart Rate to Uterine Pressure.

Johann Vargas-Calixto, Yvonne Wu, Michael Kuzniewicz, Marie-Coralie Cornet, Heather Forquer, Lawrence Gerstley, Emily Hamilton, Philip Warrick, Robert Kearney

Abstract read
In one paragraph

Article in Computing in cardiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Article
  2. Article
  3. 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

9 authors.

Johann Vargas-CalixtoMcGill University, Montreal, Canada.
Yvonne WuUniversity of California, San Francisco, USA.
Michael KuzniewiczKaiser Permanente, Northern California, USA.
Marie-Coralie CornetUniversity of California, San Francisco, USA.
Heather ForquerKaiser Permanente, Northern California, USA.
Lawrence GerstleyKaiser Permanente, Northern California, USA.
Emily HamiltonMcGill University, Montreal, Canada.
Philip WarrickMcGill University, Montreal, Canada.
Robert KearneyMcGill University, Montreal, Canada.

Funding

Maternal Antecedents and Electronic Fetal Monitoring in Term Asphyxia (MAESTRA)R01HD099216 · NICHD · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI KEARNEY, ROBERT EDWARD, WU, YVONNE W · 2020 to 2025
$2.8M
NICHD NIH HHS R01 HD099216
6 · The paper itself

Abstract

The research objective of our group is to improve the intrapartum detection of cardiotocography tracings associated with an increased risk of developing fetal acidosis and subsequent hypoxic-ischemic encephalopathy (HIE). The detection methods that we aim to develop must be sensitive to abnormal tracings without causing excessive unnecessary interventions. Past studies showed that the dynamic response of fetal heart rate (FHR) to uterine pressure (UP) during the intrapartum could be modelled using linear systems. In this study, we examined the assumption of linearity by comparing the performance of linear dynamic and nonlinear dynamic models of the UP-FHR system. The linear systems were defined by second-order state-space models. The nonlinear systems were defined by Hammerstein models: a cascade of a static nonlinearity and a linear second-order state-space model. Our results showed that nonlinear dynamic models were better than linear systems in 81.8% of UP-FHR segments.

Identifiers

PMID38037619
PMCPMC10688564

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Registered trials

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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.