Evidence map›Paper›PMID 41773790›Full record

ArticleCritical care explorations2026

Feasibility of Calculating and Maintaining Near-Infrared Spectroscopy-Guided Personalized Mean Arterial Pressure Targets in Adults With Critical Illness: A Pilot Clinical Study.

Jiale Xie, Jasmine M Khan, David M Maslove, John Muscedere, Stephanie Sibley, J Gordon Boyd, Canadian Critical Care Trials Group and the Cerebral Oxygenation and Neurological Outcomes Following Critical Illness (CONFOCAL) Research Program

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Article in Critical care explorations, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Jiale XieTranslational Medicine Institute, Queen's University, Kingston, ON, Canada.
Jasmine M KhanCentre of Neuroscience, Queen's University, Kingston, ON, Canada.
David M MasloveDepartment of Critical Care Medicine, Queen's University, Kingston, ON, Canada.
John MuscedereDepartment of Critical Care Medicine, Queen's University, Kingston, ON, Canada.
Stephanie SibleyDepartment of Critical Care Medicine, Queen's University, Kingston, ON, Canada.
J Gordon BoydCentre of Neuroscience, Queen's University, Kingston, ON, Canada.
Canadian Critical Care Trials Group and the Cerebral Oxygenation and Neurological Outcomes Following Critical Illness (CONFOCAL) Research Program

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesCritically ill patients have a high risk for delirium, which may result from inadequate cerebral perfusion. One resuscitation goal for adult critically ill patients is maintaining mean arterial pressure (MAP) greater than 65 mm Hg, regardless of diagnosis or patient characteristics. Recent data suggest a high degree of individual variability in optimal MAP (MAPopt) due, in part, to whether autoregulation is intact or absent. The overall objective of this study was to evaluate the feasibility of maintaining critically ill patients within an individualized MAPopt range identified noninvasively with near-infrared spectroscopy, a technology that measures regional cerebral oxygen saturation (rSo2).

designPilot interventional feasibility study.

settingMixed ICU at a tertiary hospital. PATIENTS: Sixteen adult critically ill patients were enrolled within 24 hours of ICU admission. Exclusion criteria included expected survival less than 24 hours, neurologic or neurosurgical diagnoses, absence of an arterial catheter, or pregnancy.

interventionsMAP and rSo2 data were recorded for 24 hours and processed through a custom algorithm. A running correlation coefficient between MAP and rSo2 was generated. Periods where there was zero or negative correlation between MAP and rSo2 reflected intact autoregulation. The MAP range where this correlation was near zero was determined to be the MAPopt. Vasoactive medications were used to maintain patients within that target range for the next 48 hours. MEASUREMENTS AND MAIN

resultsThe enrollment rate was 0.5 patients/mo (goal 1/mo). MAPopt was successfully identified in 12 patients (75%) and maintained for 61% ± 17% of the follow-up period. The proportion of time spent within MAPopt strongly correlated with the width of the MAPopt range (r = 0.729; p = 0.017). There were no adverse events associated with the intervention.

conclusionsAlthough enrollment was lower than expected, MAPopt was calculated in the majority of patients. Maintaining patients within individualized MAPopt ranges was challenging, particularly when this range was narrow.

Indexed as

Arterial PressureCritical IllnessAdultAgedCerebrovascular CirculationFeasibility StudiesFemaleHumansIntensive Care UnitsMaleMiddle AgedOxygen SaturationPilot ProjectsSpectroscopy, Near-Infraredarterial pressurecerebrovascular circulationcritical illnessdeliriumfeasibility studiesnear-infrared spectroscopy

Identifiers

PMID41773790
PMCPMC12959832

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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.