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Objective: The purpose of this study is to understand the nature and source of disruptions in an ambulance during the telemedicine-based caregiving process for stroke patients to enhance the ambulance design for supporting telemedicine-based care. Background: Telemedicine is emerging as an efficient approach to provide timely remote assessment of patients experiencing acute stroke in an ambulance. These consults are facilitated by connecting the patient and paramedic with a remotely located neurologist and nurse using cameras, audio systems, and computers. However, ambulances are typically retrofitted to support telemedicine-enabled care, and the placement of these systems inside the ambulance might lead to spatial challenges and disruptions during patient evaluation. Method: Video recordings of 13 simulated telemedicine-based stroke consults were coded and analyzed using an existing systems-based flow disruption (FD) taxonomy. For each observed disruption—the type, severity or impact, location in the ambulance, and equipment involved in the disruption were recorded. Results: Seat size, arrangement of assessment equipment, location of telemedicine equipment (computer workstation), and design of telemedicine camera were among the factors that impacted telemedicine-related disruptions. The left ambulance seat zone and head of the patient bed were more involved in environmental hazard–related disruptions, while the right zone of the ambulance was more prone to interruptions and communication-related disruptions. Conclusion: Adequate evaluation space for the paramedic, proper placement of evaluation equipment, and telemedicine computer location could facilitate the stroke care evaluation process and reduce FDs in the ambulance.

Past research has established that telemedicine improves stroke care through decreased time to treatment and more accurate diagnoses. The goals of this study were to 1) study how clinicians complete stroke assessment using a telemedicine system integrated in ambulances, 2) determine potential errors and usability issues when using the system, and 3) develop recommendations to mitigate these issues. This study investigated use of a telemedicine platform to evaluate a stroke patient in an ambulance with a geographically distributed caregiving team comprised of a paramedic, nurse, and neurologist. It first determined the tasks involved based on 13 observations of a simulated stroke using 39 care providers. Based on these observational studies, a Hierarchical Task Analysis (HTA) was developed, and subsequently, a heuristic evaluation was conducted to determine the usability issues in the interface of the telemedicine system. This was followed by a Systematic Human Error Reduction and Prediction Approach (SHERPA) to determine the possibility of human error while providing care using the telemedicine work system. The results from the HTA included 6 primary subgoals categorizing the 97 tasks to complete the stroke evaluation. The heuristic evaluation found 123 unique violations to heuristics, with an average severity of 2.38. One hundred and thirty-one potential human errors were found with SHERPA, the two most common being miscommunication and selecting an incorrect option. Several recommendations are proposed, including improvement of labeling, consistent formatting, rigid or suggested formatting for data input, automation of task structure and camera movement, and audio/visual improvements to support communication.

The built environment of an older person’s home can reduce or promote the possibility of a fall or other injury. A user-friendly tool can help the residents to evaluate their home environment withi...

(1) Background: The surgical table within a typical ambulatory surgery operating room is frequently rotated and placed in different orientations to facilitate surgery or in response to surgeon preferences. However, different surgical table orientations can impact access to different work zones, areas and equipment in the OR, potentially impacting workflow of surgical team members and creating patient safety risks, (2) Methods: This quantitative observational study used a convenience sample of 38 video recordings of the intraoperative phase of pediatric outpatient surgeries to study the impacts of surgical table orientation on flow disruptions (FDs), number of contacts between team members and distance traveled, (3) Results: This study found that the orientation of the surgical table significantly influenced staff workflow and movement in the OR with an angled surgical table orientation being least disruptive to surgical work. The anesthesia provider, scrub nurse and circulating nurse experienced more FDs compared to the surgeon, (4) Conclusions: The orientation of the surgical table matters, and clinicians and architects must consider different design and operational strategies to support optimal table orientation in the OR.

Objective: The objectives of this study are to graphically depict specific clinical challenges encountered in a mirrored pediatric intensive care unit patient room and to represent potential solutions to address these challenges using a systems approach. Background: The intensive care unit (ICU) patient room is a highly complex patient care environment where the design of the room must support patient care delivery safely and efficiently. There is a lack of research examining how ICU design elements interact with other system components to impact patient care. Methods: An observational case study method utilizing a systems approach was used to observe and graphically depict clinical challenges with mirrored room configurations and to identify potential solutions. Video recordings of the three clinical scenarios were analyzed in detail in conjunction with three rounds of interviews with a clinical expert. Results: Equipment or task characteristics that require orienting to a specific side of a patient create challenges in a mirrored room. In order to deliver care safely and efficiently in the mirrored room, adaptations would be required including changing boom, equipment and team member locations, purchasing new equipment, staff training, and inventory management. Some procedures such as extracorporeal membrane oxygenation would be difficult to conduct safely in the mirrored room, even with significant adaptations. Conclusion: Solutions to the challenges presented in mirrored room configurations are multifaceted and require simultaneous and ongoing changes to multiple systems elements, while others can be addressed relatively easily, for example, purchasing new equipment.

Purpose The aim of this study was to develop an ordinal prediction model for diagnosing middle ear dysfunction in 10- to 16-month-old infants using wideband absorbance. Method Wideband absorbance, tympanometry, and distortion product otoacoustic emissions were measured in 358 ears of 186 infants aged 10–16 months ( M age = 12 months). An ordinal reference standard (normal, mild, and severe middle ear dysfunction) was created from the tympanometry and distortion product otoacoustic emission results. Absorbance from 1000 to 5657 Hz was used to model the probability of middle ear dysfunction with ordinal logistic regression. Model performance was evaluated using measures of discrimination ( c -index) and calibration (calibration curves). Performance measures were adjusted for overfitting (bias) using bootstrap resampling. Probabilistic and simplified methods for interpreting the model are presented. The probabilistic method displays the probability of ≥ mild and ≥ severe middle ear dysfunction, and the simplified method presents the condition with the highest probability as the most likely diagnosis (normal, mild, or severe middle ear dysfunction). Results The c -index of the fitted model was 0.919 (0.914 after correction for bias), and calibration was satisfactory for both the mild and severe middle ear conditions. The model performed well for the probabilistic method of interpretation, and the simplified (most likely diagnosis) method was accurate for normal and severe cases but diagnosed some cases with mild middle ear dysfunction as normal. Conclusions The model may be clinically useful, and either the probabilistic or simplified paradigm of interpretation could be applied, depending on the context. In situations where the main goal is to identify severe middle ear dysfunction and ease of interpretation is highly valued, the simplified interpretation may be preferable (e.g., in a screening clinic that may not be concerned about missing some mild cases). In a diagnostic clinical environment, however, it may be beneficial to use the probabilistic method of interpretation.

Background: Frequent external interruptions and lack of collaboration among team members are known to be common barriers in end-of-shift handoffs between physicians in the emergency department. In spite of being the primary location for this crucial and cognitively demanding task, workstations are not designed to limit barriers and support handoffs. Objective: The purpose of this study is to examine handoff characteristics, actual and perceived interruptions, and perceived collaboration among emergency physicians performing end-of-shift handoffs in physician workstations with varying levels of enclosures—(a) open-plan workstation, (b) enclosed workstation, and (c) semi-open workstation. Method: Handoff and interruption characteristics were captured through in-person observations of 60 handoffs using an iPad-based tool. Additionally, physicians participating in the handoffs responded to a survey pertaining to their perception of interruptions and collaboration with clinicians during each phase. Other organizational and demographic data were obtained from the hospital database, surveys, and observations. Results: Physicians working in the open workstation experienced a significantly higher number of interruptions/hour (18.08 int/hr) as compared to the semi-open (13.62 int/hr) and enclosed workstations (11.41 int/hr). Most physicians perceived that they were interrupted in the semi-open and open workstations. In addition, majority of physicians in the enclosed pod perceived high collaboration with clinicians involved in and present in the workstation during handoff. Conclusion: This correlational study showed positive outcomes experienced by physician working in the enclosed workstation as compared to the open and semi-open workstations.

Objective The purpose of this study is to understand the communication among care teams during telemedicine-enabled stroke consults in an ambulance. Background Telemedicine can have a significant impact on acute stroke care by enabling timely intervention in an ambulance before a patient reaches the hospital. However, limited research has been conducted on understanding and supporting team communication during the care delivery process for telemedicine-enabled stroke care in an ambulance. Method Video recordings of 13 simulated stroke telemedicine consults conducted in an ambulance were coded to document the tasks, communication events, and flow disruptions during the telemedicine-enabled stroke care delivery process. Results The majority (82%) of all team interactions in telemedicine-enabled stroke care involved verbal interactions among team members. The neurologist, patient, and paramedic were almost equally involved in team interactions during stroke care, though the neurologist initiated 48% of all verbal interactions. Disruptions were observed in 8% of interactions, and communication-related issues contributed to 44%, with interruptions and environmental hazards being other reasons for disruptions in interactions during telemedicine-enabled stroke care. Conclusion Successful telemedicine-enabled stroke care involves supporting both verbal and nonverbal communication among all team members using video and audio systems to provide effective coverage of the patient for the clinicians as well as vice versa. Application This study provides a deeper understanding of team interactions during telemedicine-enabled stroke care that is essential for designing effective systems to support teamwork.

The healthcare facility design process provides a singular opportunity for designing spaces that promote safe and high-quality care. Virtual and physical full-scale models of spaces, called mock-ups, are increasingly being employed by healthcare architecture firms and health systems while planning for new or remodeled patient care areas. Simulating typical and high risk clinical scenarios in these mock-ups and then evaluating the performance of these spaces in relation to key design objectives, offers huge benefits and cost savings to healthcare teams by helping identify design challenges before the building is constructed. In addition to cost savings, these simulation-based evaluations are also effective in engaging multidisciplinary clinical stakeholders and obtaining staff buy-in for major design and operational changes.

Background Perioperative anxiety can have a profound and lasting effect on children and their parents, with up to 70 percent of children undergoing outpatient surgery experiencing significant physiologic and/or psychological manifestations of anxiety throughout the ambulatory surgical process. The physical healthcare environment itself can contribute to these feelings, substantially impacting the level of anxiety experienced by both the child and their parent. Objective This study sought to examine whether a difference exists between utilization of an induction room vs. the operating room on child and parent perioperative anxiety for parent present induction. Methods A single institution multi-site prospective observational study was conducted with a cohort of 51 healthy children aged 6-12 years, receiving an outpatient tonsillectomy and/or adenoidectomy and their parent. The methodological approach utilized for this study was Ecological Momentary Assessment. Two psychological measures of anxiety, (i) momentary and (ii) environmental, and one physiologic measure of anxiety (i) electrodermal activity were used. Data were captured separately for child and parent. Results For children who underwent anesthetic induction in the induction room, all three anxiety responses were significantly lower and exhibited a large positive effect [momentary (P = .0002, d = 1.984, induction room = 3.76, operating room = 7.07), environmental (P = .018, d = 1.160, induction room = 1.72, operating room = 0.85), and electrodermal activity (P = .039, d = 1.007, induction room = 0.76, operating room = 1.51)], as compared to children who were induced in the operating room. Electrodermal activity was also statistically significantly lower, with a large positive effect, in the postoperative environment (P = .004, d = 1.454, induction room = 0.21, operating room = 0.60) for Children who were induced in the induction room, as compared to the operating room cohort. No significant differences were found between parents for momentary and environmental anxiety, and electrodermal anxiety. Conclusions The nonpharmacological strategy of using an induction room for anesthetic induction of children may be clinically effective in reducing anxiety as compared to an operating room.

The treatment of advanced gastrointestinal (GI) cancers has become increasingly molecularly driven. Molecular profiling for HER2 and PD-L1 status is standard for metastatic gastroesophageal (GEJ) cancers to predict benefits from trastuzumab (HER2-targeted therapy) and pembrolizumab (anti-PD-1 therapy), while extended RAS and BRAF testing is standard in metastatic colorectal cancer to predict benefits from epidermal growth factor receptor (EGFR)-targeted therapies. Mismatch repair (MMR) or microsatellite instability (MSI) testing is standard for all advanced GI cancers to predict benefits from pembrolizumab and in metastatic colorectal cancer, nivolumab with or without ipilimumab. Here we review recent seminal trials that have further advanced targeted therapies in these cancers including Poly (adenosine diphosphate–ribose) polymerases (PARP) inhibition in pancreas cancer, BRAF inhibition in colon cancer, and isocitrate dehydrogenase (IDH) and fibroblast growth factor receptor (FGFR) inhibition in biliary tract cancer. Targeted therapies in GI malignancies constitute an integral component of the treatment paradigm in these advanced cancers and have widely established the need for standard molecular profiling to identify candidates.

BackgroundOzone (O3) inhalation elicits airway inflammation and impairs treatment responsiveness in asthmatic patients. The underlying immune mechanisms have been difficult to study because of the lack of relevant experimental models. Rhesus macaques spontaneously have asthma and have a similar immune system to human subjects.ObjectivesWe sought to investigate mucosal immune changes after O3 inhalation in a clinically relevant nonhuman primate asthma model and to study the effects of an antioxidant synthetic lignan (synthetic secoisolariciresinol diglucoside [LGM2605]).MethodsA cohort of macaques (n=17) previously characterized with airway hyperreactivity (AHR) to methacholine was assessed (day 1). Macaques were treated (orally) with LGM2605 (25mg/kg) or placebo twice per day for 7days, exposed to 0.3ppm O3 or air for 6hours (on day 7), and studied 12hours later (day 8). Lung function, blood and bronchoalveolar lavage (BAL) fluid immune cell profile, and bronchial brushing and blood cell mRNA expression were assessed.ResultsO3 induced significant BAL fluid neutrophilia and eosinophilia and increased AHR and expression of IL6 and IL25 mRNA in the airway epithelium together with increased BAL fluid group 2 innate lymphoid cell (ILC2s), CD1c+ myeloid dendritic cell, and CD4+ T-cell counts and diminished surfactant protein D expression. Although LGM2605 attenuated some of the immune and inflammatory changes, it completely abolished O3-induced AHR.ConclusionILC2s, CD1c+ myeloid dendritic cells, and CD4+ Tcells are selectively involved in O3-induced asthma exacerbation. The inflammatory changes were partially prevented by antioxidant pretreatment with LGM2605, which had an unexpectedly disproportionate protective effect on AHR.

OBJECTIVES: Wideband acoustic immittance (WAI) is an emerging test of middle-ear function with potential applications for neonates in screening and diagnostic settings. Previous large-scale diagnostic accuracy studies have assessed the performance of WAI against evoked otoacoustic emissions, but further research is needed using a more stringent reference standard. Research into suitable quantitative techniques to analyze the large volume of data produced by WAI is still in its infancy. Prediction models are an attractive method for analysis of multivariate data because they provide individualized probabilities that a subject has the condition. A clinically useful prediction model must accurately discriminate between normal and abnormal cases and be well calibrated (i.e., give accurate predictions). The present study aimed to develop a diagnostic prediction model for detecting conductive conditions in neonates using WAI. A stringent reference standard was created by combining results of high-frequency tympanometry and distortion product otoacoustic emissions. DESIGN: High-frequency tympanometry and distortion product otoacoustic emissions were performed on both ears of 629 healthy neonates to assess outer- and middle-ear function. Wideband absorbance and complex admittance (magnitude and phase) were measured at frequencies ranging from 226 to 8000 Hz in each neonate at ambient pressure using a click stimulus. Results from one ear of each neonate were used to develop the prediction model. WAI results were used as logistic regression predictors to model the probability that an ear had outer/middle-ear dysfunction. WAI variables were modeled both linearly and nonlinearly, to test whether allowing nonlinearity improved model fit and thus calibration. The best-fitting model was validated using the opposite ears and with bootstrap resampling. RESULTS: The best-fitting model used absorbance at 1000 and 2000 Hz, admittance magnitude at 1000 and 2000 Hz, and admittance phase at 1000 and 4000 Hz modeled as nonlinear variables. The model accurately discriminated between normal and abnormal ears, with an area under the receiver-operating characteristic curve (AUC) of 0.88. It effectively generalized to the opposite ears (AUC = 0.90) and with bootstrap resampling (AUC = 0.85). The model was well calibrated, with predicted probabilities aligning closely to observed results. CONCLUSIONS: The developed prediction model accurately discriminated between normal and dysfunctional ears and was well calibrated. The model has potential applications in screening or diagnostic contexts. In a screening context, probabilities could be used to set a referral threshold that is intuitive, easy to apply, and sensitive to the costs associated with true- and false-positive referrals. In a clinical setting, using predicted probabilities in conjunction with graphical displays of WAI could be used for individualized diagnoses. Future research investigating the use of the model in diagnostic or screening settings is warranted.

Handoffs occur frequently in healthcare systems, and miscommunications and critical omissions within handoffs have been linked to serious medical errors. Handoff quality is a priority of patient safety initiatives across several international organizations. The majority of previous research in handoffs have focused on postoperative handoffs; yet, there is a need to specifically investigate intraoperative handoffs, especially within individual professions or subspecialties. Each subspecialty within a surgical team may approach handoffs differently. The anesthesia team is especially unique as they take a team-based approach to patient care where multiple anesthesia providers may be involved in one surgical case. We describe an observational study of intraoperative and intraprofessional handoffs in anesthesia. Temporary and permanent handoffs were investigated as well as the contextual elements that influenced handoff procedures. In a sample of 35 video recorded surgeries, a total of 16 handoffs were identified for the maintenance phase of surgery. These handoffs ranged between 33 seconds and 7.42 minutes in duration. Our study revealed variability in intraoperative handoffs during the maintenance phase of anesthesia and emphasizes that intraoperative and intraprofessional handoffs warrant more in-depth examination in order to develop effective strategies or tools for high quality handoffs in anesthesia.

BackgroundStudies in operating rooms (OR) show that minor disruptions tend to group together to result in serious adverse events such as surgical errors. Understanding the characteristics of these minor flow disruptions (FD) that impact major events is important in order to proactively design safer systemsObjectiveThe purpose of this study is to use a systems approach to investigate the aetiology of minor and major FDs in ORs in terms of the people involved, tasks performed and OR traffic, as well as the location of FDs and other environmental characteristics of the OR that may contribute to these disruptions.MethodsUsing direct observation and classification of FDs via video recordings of 28 surgical procedures, this study modelled the impact of a range of system factors—location of minor FDs, roles of staff members involved in FDs, type of staff activities as well as OR traffic-related factors—on major FDs in the OR.ResultsThe rate of major FDs increases as the rate of minor FDs increases, especially in the context of equipment-related FDs, and specific physical locations in the OR. Circulating nurse-related minor FDs and minor FDs that took place in the transitional zone 2, near the foot of the surgical table, were also related to an increase in the rate of major FDs. This study also found that more major and minor FDs took place in the anaesthesia zone compared with all other OR zones. Layout-related disruptions comprised more than half of all observed FDs.ConclusionRoom design and layout issues may create barriers to task performance, potentially contributing to the escalation of FDs in the OR.

This paper describes the process and tools developed as part of a multidisciplinary collaborative simulation-based approach for iterative design and evaluation of operating room (OR) prototypes. Full-scale physical mock-ups of healthcare spaces offer an opportunity to actively communicate with and to engage multidisciplinary stakeholders in the design process. While mock-ups are increasingly being used in healthcare facility design projects, they are rarely evaluated in a manner to support active user feedback and engagement. Researchers and architecture students worked closely with clinicians and architects to develop OR design prototypes and engaged clinical end-users in simulated scenarios. An evaluation toolkit was developed to compare design prototypes. The mock-up evaluation helped the team make key decisions about room size, location of OR table, intra-room zoning, and doors location. Structured simulation based mock-up evaluations conducted in the design process can help stakeholders visualize their future workspace and provide active feedback.

Telemedicine implementation in ambulances can reduce time to treatment for stroke patients, which is important as "time is brain" for these patients. Limited research has explored the demands placed on acute stroke caregivers in a telemedicine-integrated ambulance system. This study investigates the impact of telemedicine on workload, teamwork, workflow, and communication of geographically distributed caregivers delivering stroke care in ambulance-based telemedicine and usability of the system. Simulated stroke sessions were conducted with 27 caregivers, who subsequently completed a survey measuring workload, usability, and teamwork. Follow-up interviews with each caregiver ascertained how telemedicine affected workflow and demands which were analyzed for barriers and facilitators to using telemedicine. Caregivers experienced moderate workload and rated team effectiveness and usability high. Barriers included frustration with equipment and with the training of caregivers increasing demands, the loss of personal connection of the neurologists with the patients, and physical constraints in the ambulance. Facilitators were more common with live visual communication increasing teamwork and efficiency, the ease of access to neurologist, increased flexibility, and high overall satisfaction and usability. Future research should focus on eliminating these barriers and supporting the distributed cognition of caregivers.

Non-participant direct observation of healthcare processes offers a rich method for understanding safety and performance improvement. As a prospective method for error prediction and modelling, observation can capture a broad range of performance issues that can be related to higher aspects of the system.1–5 It can help identify underlying and recurrent problems6 that may be antecedents to more serious situations.7 It is also a way to understand the complexity of healthcare work that might otherwise be poorly understood or ignored,8 9 how workarounds influence work practices and safety,10 and is of fundamental importance to practitioners wishing to understand resilience in the face of conflicting workplace pressures.11 12 In some cases it will lead to the direct observation of near-misses or precursor events that might otherwise not be reported,13 14 while in others the observation process may lead to, or be a specific part of, improvement methodologies.15 Observation allows us to move from ‘work as imagined’ (ie, what should happen, what we think happens or what we are told happens) to ‘work as done’ (what really happens).16–18 This also creates a set of unique technical challenges, from the initial question of what should be observed, the role of the observer, supporting the observer in data collection and protecting human subjects, to the non-linear relationships between outcomes, accidents and their deeper systemic causes. The design of observation studies within a clinical context requires a range of trade-offs that need to be carefully considered, yet little has been formalised about how those decisions are made. This viewpoint paper considers those design parameters and their impact on reliability, results and outcomes, and is specifically focused on researchers and quality improvement specialists seeking to design and conduct their own quantitative observational work, particularly, but not exclusively, …

Objective: This review of empirical literature focuses on the design of operating rooms (ORs) by investigating the physical environmental features of ORs associated with patient and staff outcomes. Background: Many ORs built more than 30 years ago remain operational today. However, most are inadequately designed to handle the equipment, processes, and people that a contemporary OR needs to accommodate. However, the evidence base for designing ORs has been sorely lacking, and little guidance exists on how OR design can improve safety and performance outcomes. Method: A literature search was conducted using PubMed and the university’s linked databases. The inclusion criteria included peer-reviewed journal articles that reported some aspect of the physical environment of ORs along with outcomes. The study included empirical studies as well as nonempirical best practice papers. Results: This literature review uncovered 211 articles. The main themes that emerged include OR design-related factors, ventilation, temperature and humidity, acoustical environment, lighting, and materials. Some environmental threats to patient safety in the OR include frequent door openings, clutter, poor air quality, surface contamination, and noise. Further, staff performance and satisfaction were impacted by factors such as the OR layout and equipment and furniture ergonomics. Conclusion: This literature review provides an overview of the research organized into design-focused topic areas to support decision-making by architects and designers. This article highlights gaps in the research and identifies areas where best practice and design assumptions need to be evaluated using rigorous design research.

A growing body of research shows that hospital inpatient room design greatly impacts healthcare outcomes, although research is often difficult for designers to understand and apply in decision making and postoccupancy evaluation (POE). The purpose of this study was to create evidence–based design checklists and POE tools for medical–surgical, intensive care, and maternity care patient rooms. Extensive literature reviews and focus groups with industry experts resulted in a set of design checklists and evaluation tools, including design considerations and features organized around 23 design goals. The tools were optimized after testing at multiple design firms and hospitals through questionnaire surveys and focus group discussions. The final product is an evidence–based toolkit with a series of features to increase usability. Testing results confirmed not only its validity and reliability, but also provided valuable lessons for further improvement. By facilitating the use of research evidence, the tools may contribute to improvements in the process of designing and evaluating healthcare facilities.

Background The safety and efficiency of anaesthesia care depend on the design of the physical workspace. However, little is known about the influence that workspace design has on the ability to perform complex operating theatre (OT) work. The aim of this study was to observe the relationship between task switching and physical layout, and then use the data collected to design and assess different anaesthesia workspace layouts. Methods In this observational study, six videos of anaesthesia providers were analysed from a single centre in the United States. A task analysis of workflow during the maintenance phase of anaesthesia was performed by categorising tasks. The data supported evaluations of alternative workspace designs. Results An anaesthesia provider's time was occupied primarily by three tasks: patient (mean: 30.0% of total maintenance duration), electronic medical record (26.6%), and visual display tasks (18.6%). The mean time between task switches was 6.39 s. With the current workspace layout, the anaesthesia provider was centred toward the patient for approximately half of the maintenance duration. Evaluating the alternative layout designs showed how equipment arrangements could improve task switching and increase the provider's focus towards the patient and visual displays. Conclusions Our study showed that current operating theatre layouts do not fit work demands. We report a simple method that facilitates a quick layout design assessment and showed that the anaesthesia workspace can be improved to better suit workflow and patient care. Overall, this arrangement could reduce anaesthesia workload while improving task flow efficiency and potentially the safety of care.

Purpose The aim of this article was to study the normal longitudinal development of wideband absorbance and admittance measures through infancy. Method Two hundred one infants who passed the newborn hearing screen (automated auditory brainstem response) were tested at birth and then followed up at approximately 6, 12, and 18 months of age. Most infants were of either White (86%) or Asian (11%) descent. At each test session, infants passed tympanometry and distortion product otoacoustic emission tests. High-frequency (1000-Hz) tympanometry was used at birth and 6 months of age, and low-frequency (226-Hz) tympanometry was used at 12 and 18 months of age. Wideband pressure reflectance was also measured at each session and analyzed in terms of absorbance, admittance at the probe tip, and admittance normalized for differences in ear canal area. Multilevel hierarchical models were fitted to the absorbance and admittance data to investigate for effects of age, ear side, gender, ethnicity, and frequency. Results There were considerable age effects on wideband absorbance and admittance measurements over the first 18 months of life. The most dramatic changes occurred between birth and 6 months of age, and there were significant differences between all age groups in the 3000- to 4000-Hz region. There were significant ethnicity effects that were substantial for certain combinations of ethnicity, age, and frequency (e.g., absorbance at 6000 Hz at 12 months of age). Conclusion There are large developmental effects on wideband absorbance and admittance measures through infancy. For absorbance, we recommend separate reference data be used at birth, 6 months of age, and 12–18 months of age. For admittance (both normalized and at the probe tip), we advise using separate normative regions for each age group (neonates and 6, 12, and 18 months).

One anesthesia provider is often responsible for prescribing, formulating, dispensing, administering, and documenting medications in the operating room. Unlike other hospital units, there are few safety interventions. Systems engineering approaches can provide important insights into improving patient safety during medication delivery processes (Kaplan et al., 2013; Reid et al., 2005). This study observed anesthesia medication delivery during 20 anesthetic cases in the OR and interviewed 10 anesthesia providers in a large midatlantic academic hospital using a Systems Engineering Initiative for Patient Safety (SEIPS) framework to identify process risk in perioperative medication delivery (Holden et al., 2013). Anesthesia attendings, fellows, residents, and certified resident nurse anesthetists (CRNAs) were sampled based on who was in the OR during observations and who volunteered for interviews. Interviews were transcribed and coded through a consensus procedure. The medication delivery process was described using a SEIPS-based process map. Tasks were separated based on the anesthesia phase, though the tasks and phases are not linear; e.g: a provider may prepare for the next case during the maintenance phase.

The physical environment of residential health, care, and support facilities (RHCSF) is a critical component in providing supportive and resident-centered care for the elderly. Although past reviews of the literature have focused on specific settings for the elderly or specific residential populations of the elderly, a systematic literature review that covers the range of settings and populations has been lacking. This article provides an overview and synthesis of the most recent empirical evidence addressing the impact of the physical environment on residents and staff of RHCSFs. The review also identifies gaps where future research is needed. This review found 66 studies examining the relationship between the built environment and outcomes in three broad domains of resident quality of life, resident safety, and staff and organizational outcomes. The studies address a range of topics including the impact on elderly residents of the facility scale and size, outdoor environments, and environmental quality.

Purpose The aim of this study was to develop a risk prediction model for detecting middle ear pathology in 6- to 9-month-old infants using wideband absorbance measures. Method Two hundred forty-nine infants aged 23–39 weeks ( Mdn = 28 weeks) participated in the study. Distortion product otoacoustic emissions and high-frequency tympanometry were tested in both ears of each infant to assess middle ear function. Wideband absorbance was measured at ambient pressure in each participant from 226 to 8000 Hz. Absorbance results from 1 ear of each infant were used to predict middle ear dysfunction, using logistic regression. To develop a model likely to generalize to new infants, the number of variables was reduced using principal component analysis, and a penalty was applied when fitting the model. The model was validated using the opposite ears and with bootstrap resampling. Model performance was evaluated through measures of discrimination and calibration. Discrimination was assessed with the area under the receiver operating characteristic curve (AUC); and calibration, with calibration curves, which plotted actual against predicted probabilities. Results AUC of the fitted model was 0.887. The model validated adequately when applied to the opposite ears (AUC = 0.852) and with bootstrap resampling (AUC = 0.874). Calibration was satisfactory, with high agreement between predictions and observed results. Conclusions The risk prediction model had accurate discrimination and satisfactory calibration. Validation results indicate that it may generalize well to new infants. The model could potentially be used in diagnostic and screening settings. In the context of screening, probabilities provide an intuitive and flexible mechanism for setting the referral threshold that is sensitive to the costs associated with true and false-positive outcomes. In a diagnostic setting, predictions could be used to supplement visual inspection of absorbance for individualized diagnoses. Further research assessing the performance and impact of the model in these contexts is warranted.

A Safety Risk Assessment is included in the 2014 Faculty Guidelines Institute (FGI) Guidelines for the Design and Construction of Hospitals and Outpatient Facilities, however, tools to support this requirement do not exist. This paper presents continued development of a Safety Risk Assessment (SRA) toolkit to be used proactively during the design of healthcare facility projects. Following content development, the tool was tested at three project sites and through hypothetical scenarios in an interactive testing process engaging expert panels. The testing revealed tactical considerations (content clarity, redundancy, etc.) and strategic aspects (themes related to use) for finalizing the tool.

Healthcare organizations are faced with the challenge of renovating existing infrastructure or building new facilities to enable the inclusion of computer workstations and address growing technological demands. The majority of existing ergonomic tools for evaluating computer workstations primarily focus on the interface between the care provider and the computer. This paper describes the development and application of an expanded ergonomic evaluation framework that focuses on the work system versus the workstation. The tool was tested and refined through visits to five facilities where the ergonomic evaluation tool was used to assess five preoperative and seven postoperative rooms/bays in surgical suites with varying spatial configurations and types of workstations. The comparative evaluation showed that all workstations met most of the basic checklist requirements, but there were significant differences related to the location of the workstation and adjacencies to other zones in how effectively the workstations were integrated into the space.

Patient safety is often considered in a behavioral context – what can someone do differently to improve outcomes? However, as a complex system of interactions, patient safety is better advanced through a systems thinking lens of human factors and ergonomics (HFE). While HFE is sometimes considered in three domains: physical, cognitive, and organizational, research in the area of the design of the physical environment is often limited to products, equipment and furnishings to accommodate a diverse population of users. With an increased focus on reimbursement related to patient safety as part of healthcare reform, organizations are becoming more aware of their own shortcomings and grappling with solutions to improve performance – typically people and processes. Yet the influence of the built environment, the space in which people work and are cared for, can act as a barrier or enhancement to achieving the desired results – physically, cognitively, and organizationally. Latent conditions of the built environment can contribute to hazards and risk within the system and using Reason’s Swiss Cheese Model can also become an additional layer of defense. A consensus-based safety risk assessment (SRA) design decision tool is being developed to address these built environment latent conditions funded through a three-year grant from the Agency for Healthcare Research and Quality (AHRQ).

Background: Post-occupancy evaluation (POE) can play a critical role in evidence-based healthcare design (EBD) by evaluating design effectiveness and adding to the knowledge base. However, its potential has not been fully realized due to the lack of standardized tools, inaccessibility of findings, a focus on technical performance instead of patient-centred outcomes, and irrelevance to healthcare processes. Objective: To strengthen the EBD knowledge base by developing standardized POE tools. Methodology: A conceptual framework was created from a review of over 100 research publications. A standardized POE toolkit was developed, including questionnaires on design strategies, healthcare outcomes, and staff perception. Pilot testing was conducted at five healthcare construction projects. This toolkit is being further augmented by additional on-site audit POE tools. Findings: From the pilot testing of the first POE tool, significant variations were found among the five pilot facilities in terms of the design s...

Increases in longevity, a growing elderly population, variation of skill and knowledge among home providers, and a steady migration of medical devices and technologies into the home are placing new demands on home heath care. The paper examines the human factors challenges associated with these converging trends.A growing literature base relevant to home health care is examined, and with the aid of a socio-technical systems model, the paper explores safety and quality concerns to which the converging trends are likely to give rise.The sensory, physical, and cognitive limitations of patients and their caregivers play a key role in the ability of patients to manage home health care needs. Other major components affecting successful home health care management are the nature of health care tasks undertaken, the design features of the physical environment, the medical devices and technologies used, the social and community environments, and distal but relevant external factors that shape the context of care. Home health care stakeholders can avoid foreseeable threats to safety and quality by recognizing that components need to be designed in a way that takes into account their interactions with one another and with the capabilities and limitations of patients and their providers.By examining the major components and interdependencies of the home health care delivery system, a human factors perspective offers insights into ways that safety and quality can be compromised and can help pave the way for new modes of thinking in home health care policy.

Objective:This report of empirical literature on ambulatory care centers (ACCs) addresses a gap in the healthcare field by exploring physical features of ACC settings that have been associated with favorable patient outcomes.Background:Growing numbers of ACCs correspond with an increasing shift from inpatient to outpatient services. As the focus of ACCs shifts from treating episodes of illnesses to comprehensive, longitudinal, patient-centered care, different types of ACC settings seek to accommodate a variety of patient groups from different demographics.Methods:Given the range of ACC settings and population types and the paucity of literature focused on any one of these settings, the literature search process was broad based to include not only peer-reviewed literature, but also “gray literature” on ACC design. The primary focus was on research studies and reports that centered on some aspect of the physical environment in ACCs and their relationship to outcomes in these settings.Results:The following patient outcomes were identified in different phases of ACC patient experience: improved access and wayfinding, enhanced waiting experience, enhanced privacy, enhanced physician/staff-patient communication, reduced patient anxiety, and reduced risk of infection.Conclusions:This article identifies physical design features of ACCs that can promote favorable patient outcomes. However, most literature reviewed adheres to a physician-centered model of episodic illness in which care ends with the experience in the exam room of the ACC. A more patient-centered approach has not been explored fully in the literature. The results indicate that there are many opportunities for future inquiry.

Objective:This report surveys and evaluates the scientific research on evidence-based healthcare design and extracts its implications for designing better and safer hospitals.Background:It builds on a literature review conducted by researchers in 2004.Methods:Research teams conducted a new and more exhaustive search for rigorous empirical studies that link the design of hospital physical environments with healthcare outcomes. The review followed a two-step process, including an extensive search for existing literature and a screening of each identified study for the relevance and quality of evidence.Results:This review found a growing body of rigorous studies to guide healthcare design, especially with respect to reducing the frequency of hospital-acquired infections. Results are organized according to three general types of outcomes: patient safety, other patient outcomes, and staff outcomes. The findings further support the importance of improving outcomes for a range of design characteristics or interventions, including single-bed rooms rather than multibed rooms, effective ventilation systems, a good acoustic environment, nature distractions and daylight, appropriate lighting, better ergonomic design, acuity-adaptable rooms, and improved floor layouts and work settings. Directions for future research are also identified.Conclusions:The state of knowledge of evidence-based healthcare design has grown rapidly in recent years. The evidence indicates that well-designed physical settings play an important role in making hospitals safer and more healing for patients, and better places for staff to work.

An ongoing US research and demonstration project, the Pebble Project, uses a transdisciplinary evidence-based design process for assessing and informing design decisions on a diverse array of new and existing healthcare facilities. The Pebble Project measures the outcomes of the innovations and shares these results with the larger healthcare community. The emphasis is on understanding the linkage between the physical environment (as one of many parameters) and health outcomes and overall performance. It provides an opportunity to assess and understand how hospital design can help reduce staff stress and fatigue and increase effectiveness in delivering care, improve patient safety, reduce patient and family stress, and improve outcomes and improve overall healthcare quality. The combined research and innovation process provides a framework for organizing research projects and assists with the formation of an emerging health facility body of knowledge. Evaluations from completed projects suggest that the ev...

This paper reviews recent research literature reporting the effects of hospital design on patient safety.Features of hospital design that are linked to patient safety in the literature include noise, air quality, lighting conditions, patient room design, unit layout, and several other interior design features. Some of these features act as latent conditions for adverse events, and impact safety outcomes directly and indirectly by impacting staff working conditions. Others act as barriers to adverse events by providing hospital staff with opportunities for preventing accidents before they occur.Although the evidence linking hospital design to patient safety is growing, much is left to be done in this area of research. Nevertheless, the evidence reported in the literature may already be sufficient to have a positive impact on hospital design.

To evaluate how a positive environmental distraction intervention impacted pediatric radiography patient behavioral stress-responses, mood states, and parental satisfaction.Behavioral observation, rating scales, surveys on 182 pediatric patients and their parents randomly assigned to three positive distraction levels (minimum, light, light and animation).Under interventional conditions, patients exhibited less low-stress coping behaviors (ps0.001-0.007) and more verbal behaviors indicating positive affect (p=0.003); parents more favorably rated environmental pleasantness (ps0.001), sense of environmental control (ps=0.002), and willingness to return and recommend the facility (ps=0.001-0.005).The intervention improved pediatric radiography experience but needs further investigation in more stressful settings.

Wideband acoustic immittance (WAI) is an innovative method of middle ear assessment with significant advantages over currently available clinical tests. Previous large-scale studies in neonates have assessed accuracy against evoked otoacoustic emissions but further research is needed using a more stringent gold standard. The aim of this study was to evaluate the test performance of WAI in neonates against a composite reference standard consisting of distortion-product otoacoustic emissions (DPOAEs) and high-frequency tympanometry (HFT). Five hundred and five neonates were recruited from the maternity ward of the Townsville Hospital to participate in the study. DPOAEs and HFT were performed on each neonate to assess outer and middle ear function. Wideband absorbance and complex admittance (magnitude and phase) were measured from 226 to 8000 Hz in each neonate at ambient pressure using a click stimulus. Best separation between groups that passed and failed the reference standard occurred at frequencies from...

Background: The built environment significantly affects the healthcare experiences of patients and staff. Healthcare administrators and building designers face the opportunity and challenge of improving healthcare experience and satisfaction through better environmental design. Objective: The purpose of the study was to evaluate how a novel environmental intervention for imaging rooms, which integrated multiple elements of healing environments including positive distractions and personal control over environment, affects the perceptions and satisfactions of its primary users—patients and staff. Methods: Anonymous questionnaire surveys were conducted to compare patient and staff perceptions of the physical environment, satisfaction, and stress in two types of imaging rooms: imaging rooms with the intervention installed (intervention rooms) and traditionally designed rooms without the intervention (comparison rooms). Results: Imaging technologists and patients perceived the intervention rooms to be significantly more pleasant-looking. Patients in the intervention rooms reported significantly higher levels of environmental control and were significantly more willing to recommend the intervention rooms to others. Conclusions: The environmental intervention was effective in improving certain aspects of the imaging environment: pleasantness and environmental control. Further improvement of the imaging environment is needed to address problematic areas such as noise.

Hospitals are extremely noisy, and noise levels in most hospitals far exceed recommended guidelines. The high ambient noise levels, as well as peak noise levels in hospitals, have serious impacts on patient and staff outcomes ranging from sleep loss and elevated blood pressure among patients to emotional exhaustion and burnout among staff. Poorly designed acoustical environments can pose a serious threat to patient confidentiality if private conversations between patients and staff or between staff members can be overheard by unintended listeners. At the same time, a poor acoustical environment impedes effective communication between patients and staff and between staff members by rendering speech and auditory signals less intelligible or detectable. This has serious implications for patient safety. A well‐designed acoustical environment is critical in addressing these problems related to noise and communication of information. The purpose of this presentation is to examine how different aspects of sound ...