Evidence map›Paper›PMID 33234161›Full record

ArticleCritical care (London, England)2020

Prediction of hypotension events with physiologic vital sign signatures in the intensive care unit.

Joo Heung Yoon, Vincent Jeanselme, Artur Dubrawski, Marilyn Hravnak, Michael R Pinsky, Gilles Clermont

Abstract read
In one paragraph

Article in Critical care (London, England), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing 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

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

  1. Pooled it
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  10. Pediatric Sepsis Phenotype in a Single-Center Cohort Covering 2010-2020: Evolution in Day 1-Day 3 Trajectory and Potential Prognostic Value.Pediatric critical care medicine : a journal of the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies · 2025
    Article
  11. Review
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  15. Role of artificial intelligence in critical care nutrition support and research.Nutrition in clinical practice : official publication of the American Society for Parenteral and Enteral Nutrition · 2024
    Review
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  18. Investigating Why Clinicians Deviate from Standards of Care: Liberating Patients from Mechanical Ventilation in the ICU.Proceedings of the SIGCHI conference on human factors in computing systems. CHI Conference · 2024
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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

6 authors.

Joo Heung YoonDivision of Pulmonary, Allergy, and Critical Care Medicine, School of Medicine, University of Pittsburgh, 200 Lothrop street, Pittsburgh, PA, 15213, USA. yoonjh@upmc.edu.ORCID 0000-0002-0127-8384
Vincent JeanselmeAuton Lab, School of Computer Science, Carnegie Mellon University, Pittsburgh, PA, USA.
Artur DubrawskiAuton Lab, School of Computer Science, Carnegie Mellon University, Pittsburgh, PA, USA.
Marilyn HravnakSchool of Nursing, University of Pittsburgh, Pittsburgh, PA, USA.
Michael R PinskyDepartment of Critical Care Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA.
Gilles ClermontDepartment of Critical Care Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA.

Funding

Multidisciplinary Training in Critical Care Outcomes ResearchT32HL007820 · NHLBI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Timothy D Girard, Jeremy M Kahn · 1996 to 2026
$6.4M
Machine learning of physiological variables to predict diagnose and treat cardiorespiratory instabilityR01GM117622 · NIGMS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI PINSKY, MICHAEL R · 2016 to 2019
$2.4M
Developing Machine Learning-Driven Prediction Models and Therapeutic Strategies for Circulatory Shock in Critically-ill PatientsK23GM138984 · NIGMS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI YOON, JOO HEUNG · 2020 to 2024
$940k
NHLBI NIH HHS T32 HL007820NIGMS NIH HHS K23 GM138984NIGMS NIH HHS R01 GM117622NIH HHS K23GM138984NIH HHS R01GM117622NIH HHS R01HL126811NIH HHS T32HL007820
6 · The paper itself

Abstract

backgroundEven brief hypotension is associated with increased morbidity and mortality. We developed a machine learning model to predict the initial hypotension event among intensive care unit (ICU) patients and designed an alert system for bedside implementation. MATERIALS AND

methodsFrom the Medical Information Mart for Intensive Care III (MIMIC-3) dataset, minute-by-minute vital signs were extracted. A hypotension event was defined as at least five measurements within a 10-min period of systolic blood pressure ≤ 90 mmHg and mean arterial pressure ≤ 60 mmHg. Using time series data from 30-min overlapping time windows, a random forest (RF) classifier was used to predict risk of hypotension every minute. Chronologically, the first half of extracted data was used to train the model, and the second half was used to validate the trained model. The model's performance was measured with area under the receiver operating characteristic curve (AUROC) and area under the precision recall curve (AUPRC). Hypotension alerts were generated using risk score time series, a stacked RF model. A lockout time were applied for real-life implementation.

resultsWe identified 1307 subjects (1580 ICU stays) as the hypotension group and 1619 subjects (2279 ICU stays) as the non-hypotension group. The RF model showed AUROC of 0.93 and 0.88 at 15 and 60 min, respectively, before hypotension, and AUPRC of 0.77 at 60 min before. Risk score trajectories revealed 80% and > 60% of hypotension predicted at 15 and 60 min before the hypotension, respectively. The stacked model with 15-min lockout produced on average 0.79 alerts/subject/hour (sensitivity 92.4%).

conclusionClinically significant hypotension events in the ICU can be predicted at least 1 h before the initial hypotension episode. With a highly sensitive and reliable practical alert system, a vast majority of future hypotension could be captured, suggesting potential real-life utility.

Indexed as

AgedArea Under CurveFemaleHumansHypotensionIntensive Care UnitsMachine LearningMaleMiddle AgedMonitoring, PhysiologicPrecision MedicineRisk AssessmentROC CurveVital SignsArtificial intelligenceHypotensionMachine learningPrediction

Identifiers

PMID33234161
PMCPMC7687996

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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.