Unifying cardiovascular modelling with deep reinforcement learning for uncertainty aware control of sepsis treatment.

Sepsis is a potentially life-threatening inflammatory response to infection or severe tissue damage. It has a highly variable clinical course, requiring constant monitoring of the patient's state to guide the management of intravenous fluids and vasopressors, among other interventions. Despite...

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Main Authors: Thesath Nanayakkara, Gilles Clermont, Christopher James Langmead, David Swigon
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2022-02-01
Series:PLOS Digital Health
Online Access:https://doi.org/10.1371/journal.pdig.0000012
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author Thesath Nanayakkara
Gilles Clermont
Christopher James Langmead
David Swigon
author_facet Thesath Nanayakkara
Gilles Clermont
Christopher James Langmead
David Swigon
author_sort Thesath Nanayakkara
collection DOAJ
description Sepsis is a potentially life-threatening inflammatory response to infection or severe tissue damage. It has a highly variable clinical course, requiring constant monitoring of the patient's state to guide the management of intravenous fluids and vasopressors, among other interventions. Despite decades of research, there's still debate among experts on optimal treatment. Here, we combine for the first time, distributional deep reinforcement learning with mechanistic physiological models to find personalized sepsis treatment strategies. Our method handles partial observability by leveraging known cardiovascular physiology, introducing a novel physiology-driven recurrent autoencoder, and quantifies the uncertainty of its own results. Moreover, we introduce a framework for uncertainty-aware decision support with humans in the loop. We show that our method learns physiologically explainable, robust policies, that are consistent with clinical knowledge. Further our method consistently identifies high-risk states that lead to death, which could potentially benefit from more frequent vasopressor administration, providing valuable guidance for future research.
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spelling doaj.art-4c5322ff44674ffc9d266d915db985482023-09-03T09:38:23ZengPublic Library of Science (PLoS)PLOS Digital Health2767-31702022-02-0112e000001210.1371/journal.pdig.0000012Unifying cardiovascular modelling with deep reinforcement learning for uncertainty aware control of sepsis treatment.Thesath NanayakkaraGilles ClermontChristopher James LangmeadDavid SwigonSepsis is a potentially life-threatening inflammatory response to infection or severe tissue damage. It has a highly variable clinical course, requiring constant monitoring of the patient's state to guide the management of intravenous fluids and vasopressors, among other interventions. Despite decades of research, there's still debate among experts on optimal treatment. Here, we combine for the first time, distributional deep reinforcement learning with mechanistic physiological models to find personalized sepsis treatment strategies. Our method handles partial observability by leveraging known cardiovascular physiology, introducing a novel physiology-driven recurrent autoencoder, and quantifies the uncertainty of its own results. Moreover, we introduce a framework for uncertainty-aware decision support with humans in the loop. We show that our method learns physiologically explainable, robust policies, that are consistent with clinical knowledge. Further our method consistently identifies high-risk states that lead to death, which could potentially benefit from more frequent vasopressor administration, providing valuable guidance for future research.https://doi.org/10.1371/journal.pdig.0000012
spellingShingle Thesath Nanayakkara
Gilles Clermont
Christopher James Langmead
David Swigon
Unifying cardiovascular modelling with deep reinforcement learning for uncertainty aware control of sepsis treatment.
PLOS Digital Health
title Unifying cardiovascular modelling with deep reinforcement learning for uncertainty aware control of sepsis treatment.
title_full Unifying cardiovascular modelling with deep reinforcement learning for uncertainty aware control of sepsis treatment.
title_fullStr Unifying cardiovascular modelling with deep reinforcement learning for uncertainty aware control of sepsis treatment.
title_full_unstemmed Unifying cardiovascular modelling with deep reinforcement learning for uncertainty aware control of sepsis treatment.
title_short Unifying cardiovascular modelling with deep reinforcement learning for uncertainty aware control of sepsis treatment.
title_sort unifying cardiovascular modelling with deep reinforcement learning for uncertainty aware control of sepsis treatment
url https://doi.org/10.1371/journal.pdig.0000012
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