Abstract：
PURPOSE:Monitoring sedation/agitation levels in patients in the intensive care unit (ICU) are important to direct treatment and to improve outcomes. This study was designed to determine the potential use of accelerometer-based sensors/devices to objectively measure sedation/agitation in patients admitted to the ICU. MATERIALS AND METHODS:Accelerometer-based devices (actigraphs) were placed on nondominant wrists of 86 patients in the ICU after informed consent. The sedation/agitation levels were classified as deep sedation, light sedation, alert and calm, mild agitation and severe agitation, and measured at regular intervals. The sedation/agitation levels were correlated with the accelerometer data (downloaded raw actigraphy data). RESULTS:The sedation/agitation levels correlated strongly with the accelerometer readings represented by mean actigraphy counts (r = 0.968; P = .007) and the proportion of time spent moving as determined by actigraphy (r = 0.979; P = .004). CONCLUSIONS:Accelerometer data correlate strongly with the sedation/agitation levels of patients in the ICUs, and appropriately designed accelerometer-based sensors/devices have the potential to be used for automating objective and continuous monitoring of sedation/agitation levels in patients in the ICU.
journal_name
J Crit Carejournal_title
Journal of critical careauthors
Raj R,Ussavarungsi K,Nugent Kdoi
10.1016/j.jcrc.2014.05.014subject
Has Abstractpub_date
2014-10-01 00:00:00pages
748-52issue
5eissn
0883-9441issn
1557-8615pii
S0883-9441(14)00215-9journal_volume
29pub_type
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