Brenda Hiu Yan Law

Dr. Brenda Hiu Yan Law

orcid

Research Focus & Metrics

Academic Career Length

11Years (2016-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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19 August 2017 in Archives of Disease in Childhood - Fetal and Neonatal Edition
Verified
Journal Article
Closed access
PDF file
BLBrenda Hiu Yan Law
Brenda Hiu Yan Law
PCPo-Yin Cheung
Po-Yin Cheung
Michael WagnerMichael Wagner
Michael Wagner
SOSylvia van Os
Sylvia van Os
BZBin Zheng
Bin Zheng
Georg SchmoelzerGeorg Schmoelzer
Georg Schmoelzer
Background Visual attention (VA) is important for situation awareness and decision-making. Eye tracking can be used to analyse the VA of healthcare providers. No study has examined eye tracking during neonatal resuscitation. Objective To test the use of eye tracking to examine VA during neonatal resuscitation. Methods Six video recordings were obtained using eye tracking glasses worn by resuscitators during the first 5 min of neonatal resuscitation. Videos were analysed to obtain (i) areas of interest (AOIs), (ii) time spent on each AOI and (iii) frequency of saccades between AOIs. Results Five videos were of acceptable quality and analysed. Only 35% of VA was directed at the infant, with 33% at patient monitors and gauges. There were frequent saccades (0.45/s) and most involved patient monitors. Conclusion During neonatal resuscitation, VA is often directed away from the infant towards patient monitors. Eye tracking can be used to analyse human performance during neonatal resuscitation.

14 April 2022 in Frontiers in Pediatrics
Verified
Journal Article
Open access
KEKrystyna Ediger
Krystyna Ediger
MRMarghalara Rashid
Marghalara Rashid
BLBrenda Hiu Yan Law
Brenda Hiu Yan Law
Introduction: Neonatal resuscitation is a team-based activity involving many decisions and tasks. Non-technical factors, such as teamwork, are increasingly recognized as impacting how well-neonatal resuscitation is performed, and therefore influencing infant outcomes. Prior studies on teamwork in neonatal resuscitation have focused on quantification of teamwork behaviors, or the effects of team training. This study aimed to explore healthcare providers' own perception of teamwork in this specialized environment to identify perceived barriers and facilitators to effective team functioning.Methods: This single-center exploratory sequential mixed methods study used two phases. First, semi-structured interviews were conducted, and thematic analysis used to identify themes. Subsequently, interview data informed the development of quantitative surveys to explore selected themes in the wider team.Results: From ten semi-structured interviews, seven themes were identified including: (1) Team Composition, (2) Effective Communication, (3) Team leadership, (4) Hierarchy, (5) Team Training, (6) Debriefing, and (7) Physical Environment. Perceived teamwork facilitators include role assignment, familiarity, team composition, talking out loud to maintain shared mental models, leadership, and team training. Perceived barriers included time pressures, ad hoc team, ineffective leadership, and space limitations. Selected themes (Communication, Speaking up, Hierarchy, and Leadership) were further explored via electronic surveys distributed via email to all members of the resuscitation team. There were 105 responses; a response rate of ~53%. All respondents agreed or strongly agreed that speaking up is important; however, not all felt comfortable doing so. Neonatal fellows (14%) and nurses (12%) were most likely to report not feeling comfortable speaking up. All respondents agreed that team communication is important to an effective resuscitation. Most respondents (91.5%) agreed that a hierarchy exists within the team; 54.3% believed that hierarchy positively contributes to effective resuscitation. All respondents agreed or strongly agreed that having a clearly defined leader is important in delivery room resuscitations. Ineffective leadership was the most cited reason for poor team communication.Conclusions: In this mixed methods study of perceptions of teamwork within a specialized, multi-disciplinary neonatal resuscitation team, communication, hierarchy, and leadership were positively perceived and facilitates teamwork. However, even in this environment, some nurses and trainees expressed discomfort with speaking up.


11 January 2024 in Archives of Disease in Childhood - Fetal and Neonatal Edition
Verified
Journal Article
Open access
PDF file
Georg SchmoelzerGeorg Schmoelzer
Georg Schmoelzer
GPGerhard Pichler
Gerhard Pichler
ASAnne Lee Solevåg
Anne Lee Solevåg
BLBrenda Hiu Yan Law
Brenda Hiu Yan Law
SMSouvik Mitra
Souvik Mitra
PCPo-Yin Cheung
Po-Yin Cheung
Objective In newborn infants requiring chest compression (CC) in the delivery room (DR) does continuous CC superimposed by a sustained inflation (CC+SI) compared with a 3:1 compression:ventilation (3:1 C:V) ratio decreases time to return of spontaneous circulation (ROSC). Design International, multicenter, prospective, cluster cross-over randomised trial. Setting DR in four hospitals in Canada and Austria, Participants Newborn infants >28 weeks’ gestation who required CC. Interventions Hospitals were randomised to CC+SI or 3:1 C:V then crossed over to the other intervention. Main outcome measure The primary outcome was time to ROSC, defined as the duration of CC until an increase in heart rate >60/min determined by auscultation of the heart, which was maintained for 60 s. Sample size of 218 infants (109/group) was sufficient to detect a clinically important 33% reduction (282 vs 420 s of CC) in time to ROSC. Analysis was intention-to-treat. Results Patient recruitment occurred between 19 October 2017 and 22 September 2022 and randomised 27 infants (CC+SI (n=12), 3:1 C:V (n=15), two (one per group) declined consent). All 11 infants in the CC+SI group and 12/14 infants in the 3:1 C:V group achieved ROSC in the DR. The median (IQR) time to ROSC was 90 (60–270) s and 615 (174–780) s (p=0.0502 (log rank), p=0.16 (cox proportional hazards regression)) with CC+SI and 3:1 C:V, respectively. Mortality was 2/11 (18.2%) with CC+SI versus 8/14 (57.1%) with 3:1 C:V (p=0.10 (Fisher’s exact test), OR (95% CI) 0.17; (0.03 to 1.07)). The trial was stopped due to issues with ethics approval and securing trial insurance as well as funding reasons. Conclusion The time to ROSC and mortality was not statistical different between CC+SI and 3:1 C:V. Trial registration NCT02858583.

19 June 2020 in Archives of Disease in Childhood - Fetal and Neonatal Edition
Verified
Journal Article
Closed access
PDF file
EZEmily Zehnder
Emily Zehnder
BLBrenda Hiu Yan Law
Brenda Hiu Yan Law
Georg SchmoelzerGeorg Schmoelzer
Georg Schmoelzer
Background Parents often prefer being present during neonatal resuscitation and benefit from this experience. We aim to determine if parental presence during neonatal resuscitation affects the perceived workload of healthcare providers. Methods Perceived workload was measured using the multidimensional retrospective National Aeronautics and Space Administration Task Load Index survey. Over 3 months, healthcare providers were asked to complete a paper and pencil survey following their participation in a neonatal resuscitation. Surveys also collected healthcare providers’ reports of parental presence during resuscitation. Results 204 surveys were completed. Of these 183 (90%) had complete information about parental presence. Overall workload of healthcare professionals was significantly lower when at least one parent was present (33; 16–47) compared with when no parents were present (46; 29–57) during the resuscitation (p=0.0004). Conclusion This work supports the presence of parents during neonatal resuscitation. Parental presence during neonatal resuscitation was associated with decreased overall workload experienced by healthcare providers.

1 June 2021 in Resuscitation Plus
Verified
Journal Article
Open access
EZEmily C. Zehnder
Emily C. Zehnder
Georg SchmoelzerGeorg Schmoelzer
Georg Schmoelzer
MMMichael van Manen
Michael van Manen
BLBrenda Hiu Yan Law
Brenda Hiu Yan Law
We aimed to describe the cognitive processes of healthcare providers participating as airway leads in delivery room neonatal resuscitations using eye-tracking assisted debriefing to facilitate recall and provide situational context. Delivery room neonatal resuscitations were recorded using eye-tracking glasses worn by participants who acted as airway leads. These glasses analyze eye-movements to produce an audio-visual recording approximating what was “seen” by the participant and marking their visual attention. Participants then reviewed and debriefed their recordings. Debriefing involved a retrospective think-aloud prompted by eye-tracked recordings and an integrated semi-structured interview. Debriefing sessions were transcribed and subjected to thematic analysis. Eight healthcare providers participated in 10 interviews; two providers participated twice in two separate resuscitations. Most visual attention was directed at the infant (62%), with 16% directed to monitors/gauges, 3% to team members. Five major themes emerged including situation awareness, performance, working in teams, addressing threats to performance, and perception of eye-tracking. Information processing was complex and involved top-down and bottom-up processing of environmental stimuli, integration of knowledge/experience, and anticipation of patient response. Despite the focus on individual cognition, interpersonal interactions and teamwork emerged as key aspects of resuscitation performance. Potential threats to performance include equipment issues, mental stress, distractions, and parental presence. Eye-tracking recordings were well-received by the participants. Retrospective think-aloud prompted by point-of-view eye-tracked recordings is a useful means of examining cognition of healthcare providers during neonatal resuscitation. Themes identified in this project aligned with existing models of clinical reasoning.