A Signal Processing Approach for Detection of Hemodynamic Instability before Decompensation.

Advanced hemodynamic monitoring is a critical component of treatment in clinical situations where aggressive yet guided hemodynamic interventions are required in order to stabilize the patient and optimize outcomes. While there are many tools at a physician's disposal to monitor patients in a h...

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Main Authors: Ashwin Belle, Sardar Ansari, Maxwell Spadafore, Victor A Convertino, Kevin R Ward, Harm Derksen, Kayvan Najarian
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2016-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4752295?pdf=render
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author Ashwin Belle
Sardar Ansari
Maxwell Spadafore
Victor A Convertino
Kevin R Ward
Harm Derksen
Kayvan Najarian
author_facet Ashwin Belle
Sardar Ansari
Maxwell Spadafore
Victor A Convertino
Kevin R Ward
Harm Derksen
Kayvan Najarian
author_sort Ashwin Belle
collection DOAJ
description Advanced hemodynamic monitoring is a critical component of treatment in clinical situations where aggressive yet guided hemodynamic interventions are required in order to stabilize the patient and optimize outcomes. While there are many tools at a physician's disposal to monitor patients in a hospital setting, the reality is that none of these tools allow hi-fidelity assessment or continuous monitoring towards early detection of hemodynamic instability. We present an advanced automated analytical system which would act as a continuous monitoring and early warning mechanism that can indicate pending decompensation before traditional metrics can identify any clinical abnormality. This system computes novel features or bio-markers from both heart rate variability (HRV) as well as the morphology of the electrocardiogram (ECG). To compare their effectiveness, these features are compared with the standard HRV based bio-markers which are commonly used for hemodynamic assessment. This study utilized a unique database containing ECG waveforms from healthy volunteer subjects who underwent simulated hypovolemia under controlled experimental settings. A support vector machine was utilized to develop a model which predicts the stability or instability of the subjects. Results showed that the proposed novel set of features outperforms the traditional HRV features in predicting hemodynamic instability.
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spelling doaj.art-b4f1d83881034023aab27be5523705b92022-12-21T17:45:14ZengPublic Library of Science (PLoS)PLoS ONE1932-62032016-01-01112e014854410.1371/journal.pone.0148544A Signal Processing Approach for Detection of Hemodynamic Instability before Decompensation.Ashwin BelleSardar AnsariMaxwell SpadaforeVictor A ConvertinoKevin R WardHarm DerksenKayvan NajarianAdvanced hemodynamic monitoring is a critical component of treatment in clinical situations where aggressive yet guided hemodynamic interventions are required in order to stabilize the patient and optimize outcomes. While there are many tools at a physician's disposal to monitor patients in a hospital setting, the reality is that none of these tools allow hi-fidelity assessment or continuous monitoring towards early detection of hemodynamic instability. We present an advanced automated analytical system which would act as a continuous monitoring and early warning mechanism that can indicate pending decompensation before traditional metrics can identify any clinical abnormality. This system computes novel features or bio-markers from both heart rate variability (HRV) as well as the morphology of the electrocardiogram (ECG). To compare their effectiveness, these features are compared with the standard HRV based bio-markers which are commonly used for hemodynamic assessment. This study utilized a unique database containing ECG waveforms from healthy volunteer subjects who underwent simulated hypovolemia under controlled experimental settings. A support vector machine was utilized to develop a model which predicts the stability or instability of the subjects. Results showed that the proposed novel set of features outperforms the traditional HRV features in predicting hemodynamic instability.http://europepmc.org/articles/PMC4752295?pdf=render
spellingShingle Ashwin Belle
Sardar Ansari
Maxwell Spadafore
Victor A Convertino
Kevin R Ward
Harm Derksen
Kayvan Najarian
A Signal Processing Approach for Detection of Hemodynamic Instability before Decompensation.
PLoS ONE
title A Signal Processing Approach for Detection of Hemodynamic Instability before Decompensation.
title_full A Signal Processing Approach for Detection of Hemodynamic Instability before Decompensation.
title_fullStr A Signal Processing Approach for Detection of Hemodynamic Instability before Decompensation.
title_full_unstemmed A Signal Processing Approach for Detection of Hemodynamic Instability before Decompensation.
title_short A Signal Processing Approach for Detection of Hemodynamic Instability before Decompensation.
title_sort signal processing approach for detection of hemodynamic instability before decompensation
url http://europepmc.org/articles/PMC4752295?pdf=render
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