Evaluation of an enhanced pulse oximeter auditory display: a simulator study

British Journal of Anaesthesia
E PatersonN A B Paterson

Abstract

We compared anaesthetists' ability to identify haemoglobin oxygen saturation (SpO2) levels using two auditory displays: one based on a standard pulse oximeter display (varying pitch plus alarm) and the other enhanced with additional sound properties (varying pitch plus tremolo and acoustic brightness) to differentiate SpO2 ranges. In a counter-balanced crossover study in a simulator, 20 experienced anaesthetists supervised a junior colleague (an actor) managing two airway surgery scenarios: once while using the enhanced auditory display and once while using a standard auditory display. Participants were distracted with other tasks such as paperwork and workplace interruptions, but were required to identify when SpO2 transitioned between pre-set ranges (target, low, critical) and when other vital signs transitioned out of a target range. They also identified the range once a transition had occurred. Visual displays were available for all monitored vital signs, but the numerical value for SpO2 was excluded. Participants were more accurate and faster at detecting transitions to and from the target SpO2 range when using the enhanced display (100.0%, 3.3 s) than when using the standard display plus alarm (73.2%, 27.4 s) (P<0.001 and...Continue Reading

References

Dec 3, 2004·Human Factors·Marcus Watson, Penelope Sanderson
Aug 27, 2005·Anaesthesia and Intensive Care·R W Morris, P J Mohacsi
Jun 29, 2010·Anesthesia and Analgesia·Simon FordJ Mark Ansermino
Aug 4, 2010·Canadian Journal of Anaesthesia = Journal Canadien D'anesthésie·Jesse M EhrenfeldAtul Gawande
Dec 4, 2010·Journal of Perianesthesia Nursing : Official Journal of the American Society of PeriAnesthesia Nurses·Dorthe HasfeldtRegner Birkelund
Apr 9, 2011·British Journal of Anaesthesia·C M SchulzG Schneider
Oct 27, 2012·Journal of the American Medical Informatics Association : JAMIA·Judy Edworthy
Aug 1, 2013·Ergonomics·Judy EdworthyDavid Rose
Nov 21, 2013·Respirology : Official Journal of the Asian Pacific Society of Respirology·Jeffrey J PrettoGarun Hamilton
Mar 31, 2016·Anesthesia and Analgesia·Robert G LoebPenelope M Sanderson
Feb 17, 2019·British Journal of Anaesthesia·C BaillardO Langeron

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Citations

May 21, 2021·Human Factors·Emily S PattersonSusan D Moffatt-Bruce
Aug 18, 2021·Resuscitation·Helen G Liley, Jelena Zestic

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