Deployment of Point-of-Care Echocardiography to Improve Cardiac Diagnostic Access Among American Indians.

BACKGROUND: American Indians face significant barriers to diagnosis and management of cardiovascular disease. We sought to develop a real-world implementation model for improving access to echocardiography within the Indian Health Service, the American Indian Structural Heart Disease Partnership. METHODS AND RESULTS: The American Indian Structural Heart Disease Partnership was implemented and evaluated via a 4-step process of characterizing the system where it would be instituted, building point-of-care echocardiography capacity, deploying active case finding for structural heart disease, and evaluating the approach from the perspective of the clinician and patient. Data were collected and analyzed using a parallel convergent mixed methods approach. Twelve health care providers successfully completed training in point-of-care echocardiography. While there was perceived usefulness of echocardiography, providers found it difficult to integrate screening point-of-care echocardiography into their workday given competing demands. By the end of 12 months, 6 providers continued to actively utilize point-of-care echocardiography. Patients who participated in the study felt it was an acceptable and effective approach. They also identified access to transportation as a notable challenge to accessing echocardiograms. Over the 12-month period, a total of 639 patients were screened, of which 36 (5.6%) had a new clinically significant abnormal finding. CONCLUSIONS: The American Indian Structural Heart Disease Partnership model exhibited several promising strategies to improve access to screening echocardiography for American Indian populations. However, competing priorities for Indian Health Service providers' time limited the amount of integration of screening echocardiography into outpatient practice. Future endeavors should explore community-based solutions to develop a more sustainable model with greater impact on case detection, disease management, and improved outcomes.

Community Health Representative Workforce: Integration across systems and teams to address the social determinants of indigenous health and wellbeing.

Tribally employed, Community Health Representatives (CHRs) serving Indigenous and American Indian and Alaskan Native (AIAN) peoples are culturally and linguistically embedded community leaders, with the unique ability to serve as the link and intermediary between community members and systems. Unique to the CHR workforce scope of practice is the expectation for high level integration within the medical and social service care team. This explicit role outlined in the scope of work sets an expectation for both CHR and care teams to deliver integrated patient, family, and systems level care coordination and case management. This paper aims to build from our previous manuscript published in Volume 1 of the special issue Community Health Workers Practice from Recruitment to Integration. In that Volume, we explored through a Community Case Study CHR Managers' perspectives on the challenges and opportunities for full CHR integration into health systems and teams serving AIAN. In this paper, we offer new information about the current CHR and CHR Managers' involvements and perceived level of integration within health care teams and the broader public health systems addressing the social and structural determinants of health. We approach this topic considering the COVID-19 pandemic and how CHRs and CHR Programs were included and not included in tribal pandemic response efforts.

Community Health Representatives as Trusted Sources for Increasing Representation of American Indian Communities in Clinical Research.

Indigenous and American Indian Alaskan Native (AI/AN) community members are systematically underrepresented in clinical trial research. This paper focuses on exploratory steps to partner with Native Nations of Arizona to engage Community Health Representatives (CHR) as a trusted source for building COVID-19 clinical trial research, including vaccine trials awareness. CHRs are frontline public health workers who apply a unique understanding of the experience, language, and culture of the population served. This workforce has entered the spotlight as essential to the prevention and control of COVID-19. METHODS: Three Tribal CHR programs were engaged to develop and refine culturally centered educational materials and a pre-post survey using a consensus-based decision-making approach. CHRs used these materials in brief education sessions during regular client home visits and community events. RESULTS: At 30 days post CHR intervention, participants (N = 165) demonstrated significantly increased awareness about and ability to enroll in COVID-19 treatment and vaccine trials. Participants also described a significant increase in trust in researchers, decreased perceived barriers related to cost for participation in a clinical trial, and improved belief that participation in a COVID-19 clinical trial for treatment was considered a benefit to American Indian and Alaskan Native people. CONCLUSION: CHRs as trusted sources of information, coupled with culturally centered education materials designed by CHRs for CHR clients, demonstrated a promising approach to improved awareness of clinical trial research generally and COVID-19 trials specifically among Indigenous and American Indian community members of Arizona.

Unique Genomic Epidemiology of COVID-19 in the White Mountain Apache Tribe, April to August 2020, Arizona.

The first case of coronavirus disease 2019 (COVID-19) within the White Mountain Apache Tribe (WMAT) in Arizona was diagnosed almost 1 month after community transmission was recognized in the state. Aggressive contact tracing allowed for robust genomic epidemiology of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), and subsequent phylogenetic analyses implicated only two virus introductions, which resulted in the spread of two unique viral lineages on the reservation. The phylogenies of these lineages reflect the nature of the introductions, the remoteness of the community, and the extraordinarily high attack rates. The timing and space-limited nature of the outbreaks validate the public health tracing efforts involved, which were illustrated by multiple short transmission chains over a period of several weeks, eventually resulting in extinction of the lineages. Comprehensive sampling and successful infection control efforts are illustrated in both the effective population size analyses and the limited mortality outcomes. The rapid spread and high attack rates of the two lineages may be due to a combination of sociological determinants of the WMAT and a seemingly enhanced transmissibility. The SARS-CoV-2 genomic epidemiology of the WMAT demonstrates a unique local history of the pandemic and highlights the extraordinary and successful efforts of their public health response. IMPORTANCE This article discusses the introduction and spread of two unique viral lineages of SARS-CoV-2 within the White Mountain Apache Tribe in Arizona. Both genomic sequencing and traditional epidemiological strategies (e.g., contract tracing) were used to understand the nature of the spread of both lineages. Beyond providing a robust genomic analysis of the epidemiology of the outbreaks, this work also highlights the successful efforts of the local public health response.

Innovative and Integrated Contact Tracing: Indian Health Service, Arizona, December 2020-January 2021.

SARS-CoV-2 has exposed limitations of public health mitigation measures such as traditional case investigations and contact tracing. The Whiteriver Service Unit is a rural, acute care hospital on the Fort Apache Indian Reservation in Arizona with integrated health care delivery and public health services. During the first wave of COVID-19 cases in May-June 2020, we developed an innovative case investigation contact tracing approach that relied heavily on cross-trained personnel, in-person encounters, and baseline clinical evaluations. A second COVID-19 surge during December 13, 2020-January 31, 2021, caused incidence to peak at 413 cases per 100 000 community members. During that second surge, we investigated all 769 newly identified COVID-19 cases and notified 1911 (99.4%) of 1922 reported contacts. Median time interval from nasopharyngeal specimen collection to both case investigation and contact notification was 0 days (range, 0-5 days and 0-13 days, respectively). Our primary lesson was the importance of cross-trained personnel who integrated tasks along the testing-tracing continuum (eg, in-person interviews, prompt referral for additional testing and evaluation). These successive steps fed forward to identify new cases and their respective contacts. Our innovative community-based approach was both successful and efficient; our experience suggests that when adapted based on local needs, case investigation and contact tracing remain valuable and feasible public health tools, even in rural, resource-limited settings.

Building Trust and Awareness to Increase AZ Native Nation Participation in COVID-19 Vaccines.

The goal of this study was to establish effective, culturally appropriate strategies to enhance participation of American Indian/Alaska Native (AI/AN) communities in prevention and treatment of COVID-19, including vaccine uptake. Thirteen Community Health Representatives (CHRs) from three Arizona Native nations tailored education materials to each community. CHRs delivered the intervention to over 160 community members and administered a pre-posttest to assess trusted sources of information, knowledge, and self-efficacy and intention regarding COVID-19 vaccines. Based on pre-posttest results, doctors/healthcare providers and CHRs were the most trusted health messengers for COVID-19 information; contacts on social media, the state and federal governments, and mainstream news were among the least trusted. Almost two-thirds of respondents felt the education session was relevant to their community and culture, and more than half reported using the education materials to talk to a family member or friend about getting vaccinated. About 67% trusted the COVID-19 information provided and 74% trusted the CHR providing the information. Culturally and locally relevant COVID-19 vaccine information was welcomed and used by community members to advocate for vaccination. The materials and education provided by CHRs were viewed as helpful and emphasized the trust and influence CHRs have in their communities.

High-Risk Outreach for COVID-19 Mortality Reduction in an Indigenous Community.

Indigenous populations have been disproportionally affected by COVID-19, particularly those in rural and remote locations. Their unique environments and risk factors demand an equally unique public health response. Our rural Native American community experienced one of the highest prevalence outbreaks in the world, and we developed an aggressive management strategy that appears to have had a considerable effect on mortality reduction. The results have implications far beyond pandemic response, and have reframed how our community addresses several complicated health challenges. (Am J Public Health. 2021;111(11):1939-1941. https://doi.org/10.2105/AJPH.2021.306472).

Community Health Representative Workforce: Meeting the Moment in American Indian Health Equity.

In 2018, the Community Health Representative (CHR) workforce celebrated their 50th year and serve as the oldest and only federally funded Community Health Worker (CHW) workforce in the United States. CHRs are a highly trained, well-established standardized workforce serving the medical and social needs of American Indian communities. Nationally, the CHR workforce consists of ~1,700 CHRs, representing 264 Tribes. Of the 22 Tribes of Arizona, 19 Tribes operate a CHR Program and employ ~250 CHRs, equivalent to ~30% of the total CHW workforce in the state. Since 2015, Tribal CHR Programs of Arizona have come together for annual CHR Policy Summits to dialogue and plan for the unique issues and opportunities facing CHR workforce sustainability and advancement. Overtime, the Policy Summits have resulted in the Arizona CHR Workforce Movement, which advocates for inclusion of CHRs in state and national level dialogue regarding workforce standardization, certification, training, supervision, and financing. This community case study describes the impetus, collaborative process, and selected results of a 2019-2020 multi-phase CHR workforce assessment. Specifically, we highlight CHR core roles and competencies, contributions to the social determinant of health and well-being and the level to which CHRs are integrated within systems and teams. We offer recommendations for strengthening the workforce, increasing awareness of CHR roles and competencies, integrating CHRs within teams and systems, and mechanism for sustainability.