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01.12.2023 | Original Paper

A Spatiotemporal and Multisensory Approach to Designing Wearable Clinical ICU Alarms

verfasst von: Ayush Sangari, Molly A. Bingham, Mabel Cummins, Aditya Sood, Anqy Tong, Palmer Purcell, Joseph J. Schlesinger

Erschienen in: Journal of Medical Systems | Ausgabe 1/2023

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Abstract

In health care, auditory alarms are an important aspect of an informatics system that monitors patients and alerts clinicians attending to multiple concurrent tasks. However, the volume, design, and pervasiveness of existing Intensive Care Unit (ICU) alarms can make it difficult to quickly distinguish their meaning and importance. In this study, we evaluated the effectiveness of two design approaches not yet explored in a smartwatch-based alarm system designed for ICU use: (1) using audiovisual spatial colocalization and (2) adding haptic (i.e., touch) information. We compared the performance of 30 study participants using ICU smartwatch alarms containing auditory icons in two implementations of the audio modality: colocalized with the visual cue on the smartwatch’s low-quality speaker versus delivered from a higher quality speaker located two feet away from participants (like a stationary alarm bay situated near patients in the ICU). Additionally, we compared participant performance using alarms with two sensory modalities (visual and audio) against alarms with three sensory modalities (adding haptic cues). Participants were 10.1% (0.24s) faster at responding to alarms when auditory information was delivered from the smartwatch instead of the higher quality external speaker. Meanwhile, adding haptic information to alarms improved response times to alarms by 12.2% (0.23s) and response times on their primary task by 10.3% (0.08s). Participants rated learnability and ease of use higher for alarms with haptic information. These small but statistically significant improvements demonstrate that audiovisual colocalization and multisensory alarm design can improve user response times.

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Titel: A Spatiotemporal and Multisensory Approach to Designing Wearable Clinical ICU Alarms
verfasst von: Ayush Sangari
Molly A. Bingham
Mabel Cummins
Aditya Sood
Anqy Tong
Palmer Purcell
Joseph J. Schlesinger
Publikationsdatum: 01.12.2023
Verlag: Springer US
Erschienen in: Journal of Medical Systems / Ausgabe 1/2023
Print ISSN: 0148-5598
Elektronische ISSN: 1573-689X
DOI: https://doi.org/10.1007/s10916-023-01997-2

Springer Medizin

Abstract

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