Cited by 328Anesthesia and Sedative AgentsIntensive Care Unit Cognitive DisordersNausea and vomiting management

Motor Activity Assessment Scale: A valid and reliable sedation scale for use with mechanically ventilated patients in an adult surgical intensive care unit

Devlin, John W., Boleski, Gail, Mlynarek, Mark, Nerenz, David R., Peterson, Edward, Jankowski, Michelle, Horst, H. Mathilda, Zarowitz, Barbara J.·1999·Critical Care Medicine

Abstract

OBJECTIVE: To establish the validity and reliability of a new sedation scale, the Motor Activity Assessment Scale (MAAS). DESIGN: Prospective, psychometric evaluation. SETTING: Sixteen-bed surgical intensive care unit (SICU) of a 937-bed tertiary care, university-affiliated teaching hospital. PATIENTS: Twenty-five randomly selected, adult, mechanically ventilated, nonneurosurgical patients who were admitted to the SICU > or = 12 hrs after surgery and were not receiving neuromuscular blockers. INTERVENTION: Four hundred assessments (eight per patient) were completed consecutively but independently, in pairs, at standardized times (both day and night) by two nurses who were preselected for each assessment from a pool of 32 pretrained SICU nurses. MEASUREMENTS AND MAIN RESULTS: To estimate validity, paired assessments (four/patient) compared the MAAS result with the subjective assessment using a 10-cm visual analog sedation scale, the percent change in blood pressure and heart rate from the previous 4-hr baselines, and the number of recent agitation-related sequelae. To estimate reliability, paired assessments (four/patient) measured correlation between assessments of the same type (e.g., MAAS-MAAS). Generalized estimating equations, which accounted for the four repeated measures in each patient, supported MAAS validity by finding a linear trend between MAAS and the visual analog scale (p < .001), blood pressure (p < .001), heart rate (p < .001), and agitation-related sequelae (p < .001) end points. The MAAS (kappa = 0.83 [95% confidence interval, 0.72 to 0.94]) was found to be more reliable than subjective assessment using the visual analog scale (intraclass correlation coefficient = 0.32 [95% confidence interval, 0.05 to 0.55]). CONCLUSIONS: The MAAS is a valid and reliable sedation scale for use with mechanically ventilated patients in the SICU. Further studies are warranted regarding the effect of MAAS implementation in our SICU on patient outcomes, such as quality of sedation and length of mechanical ventilation, as well as the use of the MAAS in other patient populations (e.g., medical).

Integrity signals

Registry

Crossref · 10.1097/00003246-199907000-00008

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  • The discrepancy between our finding and the prior study may reflect differences in study design, case-mix population, screening instrument, and local sedation protocols.

    “This discrepancy may reflect differences in study design, case-mix population (for example, medicosurgical patients versus medical patients), screening instrument (SAS versus Motor Activity Assessment Scale [29]), and local sedation protocols.”

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Authors
Devlin, J. W., Boleski, G., Mlynarek, M., Nerenz, D. R., Peterson, E., Jankowski, M., Horst, H. M., & Zarowitz, B. J.
Affiliations
Henry Ford Health (US)
Venue
Critical Care Medicine
Published
1999-07
Volume
27
Issue
7
Pages
1271-1275
ISSN
0090-3493 (ISSN-L)
OpenAlex
W2012479097
Cited by
328
References
12
Citations by year
2026: 4 · 2025: 5 · 2024: 3 · 2023: 2 · 2022: 7 · 2021: 4 · 2020: 6 · 2019: 2 · 2018: 7 · 2017: 7 · 2016: 5 · 2015: 10 · 2014: 7 · 2013: 20 · 2012: 25
FWCI
12.13
Type
journal article
Language
en
Open access
closed
Locations
  • Critical Care Medicine (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Anesthesiology and Pain Medicine › Anesthesia and Sedative Agents
  • Health Sciences › Medicine › Critical Care and Intensive Care Medicine › Intensive Care Unit Cognitive Disorders
  • Health Sciences › Medicine › Surgery › Nausea and vomiting management
Keywords
sedation assessment, mechanical ventilation, surgical intensive care unit, postoperative sedation, agitation, visual analogue scale
MeSH terms
Adult, Female, Humans, Hypnotics and Sedatives, Intensive Care Units, Male, Middle Aged, Postoperative Care, Psychometrics, Psychomotor Agitation, Respiration, Artificial, Reproducibility of Results, Linear Models, Drug Monitoring

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