Frontiers in Neurology (Jul 2019)

Influence of the Intensive Care Unit Environment on the Reliability of the Montreal Cognitive Assessment

  • Martin Nikolaus Stienen,
  • Martin Nikolaus Stienen,
  • Olivia Geisseler,
  • Olivia Geisseler,
  • Julia Velz,
  • Julia Velz,
  • Nicolai Maldaner,
  • Nicolai Maldaner,
  • Martina Sebök,
  • Martina Sebök,
  • Noemi Dannecker,
  • Noemi Dannecker,
  • Yannick Rothacher,
  • Yannick Rothacher,
  • Ladina Schlosser,
  • Ladina Schlosser,
  • Nicolas Roydon Smoll,
  • Emanuela Keller,
  • Emanuela Keller,
  • Peter Brugger,
  • Peter Brugger,
  • Luca Regli,
  • Luca Regli

DOI
https://doi.org/10.3389/fneur.2019.00734
Journal volume & issue
Vol. 10

Abstract

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Background: Neuropsychological screening becomes increasingly important for the evaluation of subarachnoid hemorrhage (SAH) and stroke patients. It is often performed during the surveillance period on the intensive (ICU), while it remains unknown, whether the distraction in this environment influences the results. We aimed to study the reliability of the Montreal Cognitive Assessment (MoCA) in the ICU environment.Methods: Consecutive stable patients with recent brain injury (tumor, trauma, stroke, etc.) were evaluated twice within 36 h using official parallel versions of the MoCA (ΔMoCA). The sequence of assessment was randomized into (a) busy ICU first or (b) quiet office first with subsequent crossover. For repeated MoCA, we determined sequence, period, location effects, and the intraclass correlation coefficient (ICC).Results:N = 50 patients were studied [n = 30 (60%) male], with a mean age of 57 years. The assessment's sequence [“ICU first” mean ΔMoCA −1.14 (SD 2.34) vs. “Office first” −0.73 (SD 1.52)] did not influence the MoCA (p = 0.47). On the 2nd period, participants scored 0.96 points worse (SD 2.01; p = 0.001), indicating no MoCA learning effect but a possible difference in parallel versions. There was no location effect (p = 0.31) with ΔMoCA between locations (Office minus ICU) of −0.32 (SD 2.21). The ICC for repeated MoCA was 0.87 (95% CI 0.79–0.92).Conclusions: The reliability of the MoCA was excellent, independent from the testing environment being ICU or office. This finding is helpful for patient care and studies investigating the effect of a therapeutic intervention on the neuropsychological outcome after SAH, stroke or traumatic brain injury.

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