{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,10]],"date-time":"2026-09-10T17:56:19Z","timestamp":1789062979930,"version":"build-2803163510"},"reference-count":23,"publisher":"SAGE Publications","issue":"1","license":[{"start":{"date-parts":[[2022,9,1]],"date-time":"2022-09-01T00:00:00Z","timestamp":1661990400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2022,9,1]],"date-time":"2022-09-01T00:00:00Z","timestamp":1661990400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Neurotrauma Reports"],"published-print":{"date-parts":[[2022,9,1]]},"abstract":"<jats:p>\n                    The current approach to intracranial hypertension and brain tissue hypoxia is reactive, based on fixed thresholds. We used statistical machine learning on high-frequency intracranial pressure (ICP) and partial brain tissue oxygen tension (PbtO\n                    <jats:sub>2<\/jats:sub>\n                    ) data obtained from the BOOST-II trial with the goal of constructing robust quantitative models to predict ICP\/PbtO\n                    <jats:sub>2<\/jats:sub>\n                    crises. We derived the following machine learning models: logistic regression (LR), elastic net, and random forest. We split the data set into 70\u201330% for training and testing and utilized a discrete-time survival analysis framework and 5-fold hyperparameter optimization strategy for all models. We compared model performances on discrimination between events and non-events of increased ICP or low PbtO\n                    <jats:sub>2<\/jats:sub>\n                    with the area under the receiver operating characteristic (AUROC) curve. We further analyzed clinical utility through a decision curve analysis (DCA). When considering discrimination, the number of features, and interpretability, we identified the RF model that combined the most recent ICP reading, episode number, and longitudinal trends over the preceding 30\u2009min as the best performing for predicting ICP crisis events within the next 30\u2009min (AUC 0.78). For PbtO\n                    <jats:sub>2<\/jats:sub>\n                    , the LR model utilizing the most recent reading, episode number, and longitudinal trends over the preceding 30\u2009min was the best performing (AUC, 0.84). The DCA showed clinical usefulness for wide risk of thresholds for both ICP and PbtO\n                    <jats:sub>2<\/jats:sub>\n                    predictions. Acceptable alerting thresholds could range from 20% to 80% depending on a patient-specific assessment of the benefit-risk ratio of a given intervention in response to the alert.\n                  <\/jats:p>","DOI":"10.1089\/neur.2022.0055","type":"journal-article","created":{"date-parts":[[2022,10,28]],"date-time":"2022-10-28T17:00:55Z","timestamp":1666976455000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":10,"title":["Prediction of Intracranial Hypertension and Brain Tissue Hypoxia Utilizing High-Resolution Data from the BOOST-II Clinical Trial"],"prefix":"10.1177","volume":"3","author":[{"given":"Christos","family":"Lazaridis","sequence":"first","affiliation":[{"name":"Departments of Neurology and Neurosurgery, University of Chicago Medical Center, University of Chicago, Chicago, Illinois, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Aswathy","family":"Ajith","sequence":"additional","affiliation":[{"name":"Department of Computer Science, University of Chicago, Chicago, Illinois, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ali","family":"Mansour","sequence":"additional","affiliation":[{"name":"Departments of Neurology and Neurosurgery, University of Chicago Medical Center, University of Chicago, Chicago, Illinois, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David O.","family":"Okonkwo","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ramon","family":"Diaz-Arrastia","sequence":"additional","affiliation":[{"name":"Department of Neurology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anoop","family":"Mayampurath","sequence":"additional","affiliation":[{"name":"Department of Biostatistics and Medical Informatics, University of Wisconsin, Madison, Wisconsin, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"name":"on behalf of the BOOST II Investigators","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ramon Diaz","family":"Arrastia","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nancy","family":"Temkin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carol","family":"Moore","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lori","family":"Shutter","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christopher","family":"Madden","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Norberto","family":"Andaluz","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David","family":"Okonkwo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Randall","family":"Chesnut","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ross","family":"Bullock","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"John","family":"McGregor","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gerald","family":"Grant","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mark","family":"Shapiro","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael","family":"Weaver","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peter","family":"LeRoux","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jack","family":"Jallo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2022,10,27]]},"reference":[{"key":"e_1_3_9_2_2","author":"Dewan MC","unstructured":"Dewan MC, , Rattani A, , Gupta S, et al. 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