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Updated: Nov 28, 2025

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
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Audiovisual Modules to Enhance Informed Consent in the ICU: A Pilot Study.

Tyler J Loftus1, Maria E Alfaro1, Tiffany N Anderson1

  • 1Department of Surgery, University of Florida Health, Gainesville, FL.

Critical Care Explorations
|November 30, 2020
PubMed
Summary

An audiovisual module improved understanding of intensive care unit (ICU) procedures for patients and caregivers without healthcare backgrounds. The video enhanced knowledge comprehension, particularly for those without prior medical experience.

Keywords:
communicationhealth literacyinformed consentintensive care unitproceduressurgery

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Area of Science:

  • Medical Education
  • Critical Care Medicine
  • Patient Communication

Background:

  • Informed consent for intensive care unit (ICU) procedures is often hindered by communication barriers and unclear explanations.
  • Variability in communication styles and descriptions of complex anatomic concepts can compromise patient and caregiver understanding.
  • Baseline knowledge of ICU procedures among patients and caregivers is frequently inadequate for informed decision-making.

Purpose of the Study:

  • To evaluate the effectiveness of an audiovisual module in enhancing patient and caregiver knowledge of common ICU procedures.
  • To assess the impact of visual aids on improving comprehension of critical care interventions.
  • To identify patient populations that benefit most from audiovisual educational tools in the ICU setting.

Main Methods:

  • A prospective, observational study was conducted in a 48-bed adult surgical ICU at a tertiary care center.
  • Fifty-nine critically ill surgical patients and their legally authorized representatives were enrolled.
  • Participants viewed an audiovisual module detailing eight common ICU procedures and completed pre- and post-video knowledge tests and a satisfaction survey.

Main Results:

  • Overall knowledge scores showed a marginal, non-significant increase from pretest (8.0 ± 1.9) to posttest (8.4 ± 2.0) (p = 0.055).
  • Subjects without a healthcare background demonstrated a significant improvement in knowledge scores (7.7 ± 1.9 to 8.3 ± 2.1, p = 0.019).
  • Having a healthcare background was a negative predictor of knowledge improvement (OR, 0.185), and 70% of subjects felt the video improved their understanding.

Conclusions:

  • Audiovisual modules show potential for improving knowledge and comprehension of ICU procedures, especially for patients and caregivers without healthcare backgrounds.
  • The study highlights the utility of targeted educational interventions to bridge knowledge gaps in critical care settings.
  • Further research may explore optimizing audiovisual content for diverse patient populations to enhance informed consent and patient engagement.