Rebecca D. Walker

All Publications

• Effects of California's New Patient Homelessness Screening and Discharge Care Law in an Emergency Department. Cureus Eakin, M., Singleterry, V., Wang, E., Brown, I., Saynina, O., Walker, R. 2023; 15 (2): e35534

  Abstract

  Introduction California State Bill 1152 (SB1152) mandated all non-state-operated hospitals meet specific criteria when discharging patients identified as experiencing homelessness. Little is known about SB1152's effect on hospitals or compliance statewide. We studied the implementation of SB1152 in our emergency department (ED). Methods We analyzed our suburban academic ED's institutional electronic medical record for one year before (July 1, 2018-June 20, 2019) and one year after (July 1, 2019-June 30, 2020) implementation of SB1152. We identified individuals by lack of address during registration, International Classification of Diseases, Tenth Revision (ICD-10) code of homelessness, and/or the presence of an SB1152 discharge checklist. Demographics, clinical information, and repeat visit data were collected. Results ED volumes were constant during the pre- and post-SB1152 periods (approximately 75,000 annually); however, ED visits by people experiencing homelessness more than doubled (630 (0.8%) to 1530 (2.1%) in the pre- and post-implementation periods.Age and sex distributions were similar with approximately 80% of patients aged 31-65 years and less than 1% under 18. Visits by females comprised less than 30% of the population. Visits by people of the White race decreased from 50% to 40% pre- and post-SB1152. Visits by people of the Black, Asian, and Hispanic races experiencing homelessness increased by 18% to 25%, 1% to 4%, and 19% to 21%, respectively. Acuity was unchanged with 50% of visits classified as "urgent."Discharges increased from 73% to 81% and admissions halved from 18% to 9%. Visits by patients with only one ED visit decreased (28% to 22%); those with four or more visits increased (46% to 56%). The most common primary diagnoses pre- and post-SB1162 were alcohol use (6.8% and 9.3%, respectively), chest pain (3.3% and 4.5%, respectively), convulsions (3.0%, and 2.46%, respectively), and limb pain (2.3% and 2.3%, respectively). The primary diagnosis of suicidal ideation doubled from the pre- to post-implementation periods (1.3% to 2.2%, respectively). Checklists were completed for 92% of identified patients discharged from the ED. Conclusion Implementation of SB1152 in our ED resulted in identifying an increased number of persons experiencing homelessness. We identified opportunities for further improvement since pediatric patients were missed. Further analysis is warranted, especially with the coronavirus disease 2019 (COVID-19) pandemic, which has significantly affected healthcare-seeking behavior in EDs.

  View details for DOI 10.7759/cureus.35534

  View details for PubMedID 37007375

• Ten Years of the Nepal Ambulance Service: Successful and Sustainable Efforts. Wilderness & environmental medicine Waterstone, A. M., Prendergast, N. J., Gongal, R., Il'yasova, D., Walker, R. 2022

  Abstract

  We describe the evolution of the nonprofit Nepal Ambulance Service (NAS) in a narrative of its 10-y history, presenting geographical, social, cultural, and financial considerations that permeated the development of NAS. We gathered narrative information from the NAS leadership and partners to detail key organizational considerations regarding the implementation and maintenance of the prehospital system in Nepal. We describe the response of NAS to the 2015 earthquake and summarize transport data for 6 mo before and 6 mo after the event. The data collected included the date and time of calls received, time to ambulance dispatch, on-scene time, time to arrival at the hospital, time until the ambulance crew was back in service, patient age and sex, chief complaints, and work shift time of the ambulance crew. To characterize the time to response and transport after the 2015 earthquake, we present the means and standard deviations of the time intervals. There was an overall increase in calls and, specifically, trauma-related calls after the 2015 earthquake. The time from a call placed to dispatch was stable, approximately 2 min, throughout the period, whereas the time from dispatch to the scene and arrival at the scene varied widely. We discuss the response to coronavirus disease 2019 (COVID-19). The NAS provided care to 1230 patients with COVID-19. The descriptive data show how well NAS responded to a major national disaster and the recent pandemic.

  View details for DOI 10.1016/j.wem.2022.07.010

  View details for PubMedID 36241486

• Emergency Medical Services (EMS) Utilization in Zimbabwe: Retrospective Review of Harare Ambulance System Reports. Annals of global health Muchatuta, M., Mudariki, S., Matheson, L., Rice, B., Chidzonga, M., Walker, R., Strehlow, M., Newberry, J. 2022; 88 (1): 70

  Abstract

  Emergency medical services (EMS) are a critical but often overlooked component of essential public health care delivery in low- and middle-income countries (LMICs). Few countries in Africa have established EMS and there is scant literature to provide guidance for EMS growth.This study aimed to characterize EMS utilization in Harare, Zimbabwe in order to guide system strengthening efforts.We performed a retrospective chart review of patient care reports (PCR) generated by the City of Harare ambulance system for patients transported and/or treated in the prehospital setting over a 14-month period (February 2018 - March 2019).A total of 875 PCRs were reviewed representing approximately 8% of the calls to EMS. The majority of patients were age 15 to 49 (76%) and 61% were female patients. In general, trauma and pregnancy were the most common chief complaints, comprising 56% of all transports. More than half (51%) of transports were for inter-facility transfers (IFTs) and 52% of these IFTs were maternity-related. Transports for trauma were mostly for male patients (63%), and 75% of the trauma patients were age 15-49. EMTs assessed and documented pulse and blood pressure for 72% of patients.In this study, EMS cared primarily for obstetric and trauma emergencies, which mirrors the leading causes of premature death in LMICs. The predominance of requests for maternity-related IFTs emphasizes the role for EMS as an integral player in peripartum maternal health care. Targeted public health efforts and chief complaint-specific training for EMTs in these priority areas could improve quality of care and patient outcomes. Moreover, a focus on strengthening prehospital data collection and research is critical to advancing EMS development in Zimbabwe and the region through quality improvement and epidemiologic surveillance.

  View details for DOI 10.5334/aogh.3649

  View details for PubMedID 36043040

  View details for PubMedCentralID PMC9374015

• Experiences of Workplace Violence Among Healthcare Providers in Myanmar: A Cross-sectional Survey Study. Cureus Lindquist, B., Feltes, M., Niknam, K., Koval, K. W., Ohn, H., Newberry, J., Strehlow, M., Walker, R. 2020; 12 (4): e7549

  Abstract

  Background Healthcare providers face enormous threats to personal safety from workplace violence (WPV). Prior investigations estimate a highly varied prevalence of WPV in the United States and around the world, including both verbal and physical assault. Little is known about WPV in Myanmar. Only a single prior study has evaluated WPV experiences among physicians in Myanmar, reporting an unusually low prevalence of verbal (8.7%) and physical (1.0%) assault. Given this much lower prevalence compared with similar studies in other low- and middle-income countries (LMICs), we embarked on a study to identify the prevalence of WPV in a separate cohort of healthcare providers in Myanmar. Methods This was a cross-sectional analysis of WPV prevalence among healthcare providers who attended a national emergency medicine conference in Myanmar in November 2018. The survey instrument was adapted from a validated survey from the Joint Program on Workplace Violence in the Healthcare Sector (International Labour Office, International Council of Nurses, World Health Organization, and Public Services International), which had been used in other global settings. Results Sixty-three participants completed the survey questionnaire, including 35 women (55.6%) and 26 men (41.3%). Among them, 25 (39.7%) were primary care providers. Overall, the combined prevalence of WPV in the previous 12 months was found to be 47.6% (n = 30; 95% CI: 34.9-60.6%). The prevalence of verbal assault was 47.6% (n = 30; 95% CI: 34.9-60.6%), and that of physical assault was 4.8% (n = 3; 95% CI: 1.0-13.3%). Twenty-four participants (42.4%) reported that they were encouraged to report violence in the workplace, and five (8.1%) reported they had received training on how to manage WPV. Respondents who were 30-34 years in age and those working in private facilities were significantly less likely to report WPV on univariate analysis. Conclusion Although our cohort comprised a limited sample of a select group of providers, we found a dramatically higher prevalence of WPV experiences among healthcare providers attending an emergency medicine conference in Myanmar when compared with a prior investigation. Very few participants had received training on WPV, and less than half reported a work culture where WPV reporting is encouraged. To combat healthcare provider shortages, more investigation is required into WPV to understand its impact and identify amelioration strategies.

  View details for DOI 10.7759/cureus.7549

  View details for PubMedID 32382453

  View details for PubMedCentralID PMC7202584

• Physicians in Myanmar Provide Palliative Care Despite Limited Training and Low Confidence in Their Abilities. Palliative medicine reports Earl-Royal, E., Feltes, M., Gisondi, M. A., Matheson, L., Htoo, M. O., Walker, R. 2020; 1 (1): 314-320

  Abstract

  Background: Patients in low-income and middle-income countries (LMICs) have limited access to palliative care providers. In Myanmar, little is known about physician knowledge of or perceptions about palliative care. An assessment of physician practice and capacity to provide palliative care is needed. Objective: Our objective was to identify physician practice patterns, knowledge gaps, and confidence in providing palliative and end-of-life care in Myanmar. Design: This was a cross-sectional survey study. Setting/Subjects: Participants were physicians practicing in Myanmar who attended the Myanmar Emergency Medicine Updates Symposium on November 10 to 11, 2018 in Yangon, Myanmar (n=89). Measurements: The survey used modified Likert scales to explore four aspects of palliative care practice and training: frequency of patient encounters, confidence in skills, previous training, and perceived importance of formal training. Results: Study participants were young (median age 27 years old); 89% cared for terminally ill patients monthly, yet 94% reported less than two weeks of training in common palliative care domains. Lack of training significantly correlated with lack of confidence in providing care. Priorities for improving palliative care services in Myanmar include better provider training and medication access. Conclusions: Despite limited training and low confidence in providing palliative care, physicians in Myanmar are treating patients with palliative needs on a monthly basis. Future palliative care education and advocacy in Myanmar and other LMICs could focus on physician training to improve end-of-life care, increase physician confidence, and reduce barriers to medication access.

  View details for DOI 10.1089/pmr.2020.0090

  View details for PubMedID 34223491

• Comparing Teaching Methods in Resource-Limited Countries. AEM education and training Mahadevan, S. V., Walker, R., Kalanzi, J., Stone, L. T., Bills, C., Acker, P., Apfeld, J. C., Newberry, J., Becker, J., Mantha, A., Tecklenburg Strehlow, A. N., Strehlow, M. C. 2018; 2 (3): 238

  View details for PubMedID 30051096

• Comparison of online and classroom-based formats for teaching emergency medicine to medical students in Uganda AEM Education and Training Mahadevan, S., Walker, R., Kalanzi, J., Luggya, T., Bills, C., Acker, P., et al 2018; 2 (1)

  View details for DOI 10.1002/aet2.10066

• Comparison of Online and Classroom-based Formats for Teaching Emergency Medicine to Medical Students in Uganda. AEM education and training Mahadevan, S. V., Walker, R., Kalanzi, J., Stone, L. T., Bills, C., Acker, P., Apfeld, J. C., Newberry, J., Becker, J., Mantha, A., Tecklenburg Strehlow, A. N., Strehlow, M. C. 2018; 2 (1): 5-9

  Abstract

  Severe global shortages in the health care workforce sector have made improving access to essential emergency care challenging. The paucity of trained specialists in low- and middle-income countries translates to large swathes of the population receiving inadequate care. Efforts to expand emergency medicine (EM) education are similarly impeded by a lack of available and appropriate teaching faculty. The development of comprehensive, online medical education courses offers a potentially economical, scalable, and lasting solution for universities experiencing professional shortages.An EM course addressing core concepts and patient management was developed for medical students enrolled at Makerere University College of Health Sciences in Kampala, Uganda. Material was presented to students in two comparable formats: online video modules and traditional classroom-based lectures. Following completion of the course, students were assessed for knowledge gains.Forty-two and 48 students enrolled and completed all testing in the online and classroom courses, respectively. Student knowledge gains were equivalent (classroom 25 ± 8.7% vs. online 23 ± 6.5%, p = 0.18), regardless of the method of course delivery.A summative evaluation of Ugandan medical students demonstrated that online teaching modules are effectively equivalent and offer a viable alternative to traditional classroom-based lectures delivered by on-site, visiting faculty in their efficacy to teach expertise in EM. Web-based curriculum can help alleviate the burden on universities in developing nations struggling with a critical shortage of health care educators while simultaneously satisfying the growing community demand for access to emergency medical care. Future studies assessing the long-term retention of course material could gauge its incorporation into clinical practice.

  View details for DOI 10.1002/aet2.10066

  View details for PubMedID 30051058

  View details for PubMedCentralID PMC6001592

• Educating Health Care Professionals on Human Trafficking PEDIATRIC EMERGENCY CARE Grace, A. M., Lippert, S., Collins, K., Pineda, N., Tolani, A., Walker, R., Jeong, M., Trounce, M. B., Graham-Lamberts, C., Bersamin, M., Martinez, J., Dotzler, J., Vanek, J., Storfer-Isser, A., Chamberlain, L. J., Horwitz, S. M. 2014; 30 (12): 856-861

  Abstract

  The US Department of State estimates that there are between 4 and 27 million individuals worldwide in some form of modern slavery. Recent studies have demonstrated that 28% to 50% of trafficking victims in the United States encountered health care professionals while in captivity, but were not identified and recognized. This study aimed to determine whether an educational presentation increased emergency department (ED) providers' recognition of human trafficking (HT) victims and knowledge of resources to manage cases of HT.The 20 largest San Francisco Bay Area EDs were randomized into intervention (10 EDs) or delayed intervention comparison groups (10 EDs) to receive a standardized educational presentation containing the following: background about HT, relevance of HT to health care, clinical signs in potential victims, and referral options for potential victims. Participants in the delayed intervention group completed a pretest in the period the immediate intervention group received the educational presentation, and all participants were assessed immediately before (pretest) and after (posttest) the intervention. The intervention effect was tested by comparing the pre-post change in the intervention group to the change in 2 pretests in the delayed intervention group adjusted for the effect of clustering within EDs. The 4 primary outcomes were importance of knowledge of HT to the participant's profession (5-point Likert scale), self-rated knowledge of HT (5-point Likert scale), knowledge of who to call for potential HT victims (yes/no), and suspecting that a patient was a victim of HT (yes/no).There were 258 study participants from 14 EDs; 141 from 8 EDs in the intervention group and 117 from 7 EDs in the delayed intervention comparison group, of which 20 served as the delayed intervention comparison group. Participants in the intervention group reported greater increases in their level of knowledge about HT versus those in the delayed intervention comparison group (1.42 vs -0.15; adjusted difference = 1.57 [95% confidence interval, 1.02-2.12]; P < 0.001). Pretest ratings of the importance of knowledge about HT to the participant's profession were high in both groups and there was no intervention effect (0.31 vs 0.55; -0.24 [-0.90-0.42], P = 0.49). Knowing who to call for potential HT victims increased from 7.2% to 59% in the intervention group and was unchanged (15%) in the delayed intervention comparison group (61.4% [28.5%-94.4%]; P < 0.01). The proportion of participants who suspected their patient was a victim of HT increased from 17% to 38% in the intervention group and remained unchanged (10%) in the delayed intervention comparison group (20.9 [8.6%-33.1%]; P < 0.01).A brief educational intervention increased ED provider knowledge and self-reported recognition of HT victims.

  View details for PubMedID 25407038

• Implementing an emergency medical services system in kathmandu, Nepal: a model for "white coat diplomacy". Wilderness & environmental medicine Walker, R., Auerbach, P. S., Kelley, B. V., Gongal, R., Amsalem, D., Mahadevan, S. 2014; 25 (3): 311-318

  Abstract

  Wilderness medicine providers often visit foreign lands, where they come in contact with medical situations that are representative of the prevailing healthcare issues in the host countries. The standards of care for matters of acute and chronic care, public health, and crisis intervention are often below those we consider to be modern and essential. Emergency medical services (EMS) is an essential public medical service that is often found to be underdeveloped. We describe our efforts to support development of an EMS system in the Kathmandu Valley of Nepal, including training the first-ever class of emergency medical technicians in that country. The purpose of this description is to assist others who might attempt similar efforts in other countries and to support the notion that an effective approach to improving foreign relations is assistance such as this, which may be considered a form of "white coat diplomacy."

  View details for DOI 10.1016/j.wem.2014.04.006

  View details for PubMedID 24954196