Researcher Views on Changes in Personality, Mood, and Behavior in Next-Generation Deep Brain Stimulation.

The literature on deep brain stimulation (DBS) and adaptive DBS (aDBS) raises concerns that these technologies may affect personality, mood, and behavior. We conducted semi-structured interviews with researchers (n = 23) involved in developing next-generation DBS systems, exploring their perspectives on ethics and policy topics including whether DBS/aDBS can cause such changes. The majority of researchers reported being aware of personality, mood, or behavioral (PMB) changes in recipients of DBS/aDBS. Researchers offered varying estimates of the frequency of PMB changes. A smaller majority reported changes in personality specifically. Some expressed reservations about the scientific status of the term 'personality,' while others used it freely. Most researchers discussed negative PMB changes, but a majority said that DBS/aDBS can also result in positive changes. Several researchers viewed positive PMB changes as part of the therapeutic goal in psychiatric applications of DBS/aDBS. Finally, several discussed potential causes of PMB changes other than the device itself.

Expanding Medicaid to Reduce Human Immunodeficiency Virus Transmission in Houston, Texas: Insights From a Modeling Study.

CONTEXT: Medicaid expansion has been nationally shown to improve engagement in the human immunodeficiency virus (HIV) treatment and prevention continua, which are vital steps to stopping the HIV epidemic. New HIV infections in the United States are disproportionately concentrated among young Black men who have sex with men (YBMSM). Houston, TX, is the most populous city in the Southern United States with a racially/ethnically diverse population that is located in 1 of 11 US states that have not yet expanded Medicaid coverage as of 2021. METHODS: An agent-based model that incorporated the sexual networks of YBMSM was used to simulate improved antiretroviral treatment and pre-exposure prophylaxis (PrEP) engagement through Medicaid expansion in Houston, TX. Analyses considered the HIV incidence (number of new infections and as a rate metric) among YBMSM over the next 10 years under Medicaid expansion as the primary outcome. Additional scenarios, involving viral suppression and PrEP uptake above the projected levels achieved under Medicaid expansion, were also simulated. RESULTS: The baseline model projected an HIV incidence rate of 4.96 per 100 person years (py) and about 368 new annual HIV infections in the 10th year. Improved HIV treatment and prevention continua engagement under Medicaid expansion resulted in a 14.9% decline in the number of annual new HIV infections in the 10th year. Increasing viral suppression by an additional 15% and PrEP uptake by 30% resulted in a 44.0% decline in new HIV infections in the 10th year, and a 27.1% decline in cumulative infections across the 10 years of the simulated intervention. FINDINGS: Simulation results indicate that Medicaid expansion has the potential to reduce HIV incidence among YBMSM in Houston. Achieving HIV elimination objectives, however, might require additional effective measures to increase antiretroviral treatment and PrEP uptake beyond the projected improvements under expanded Medicaid.

Improving Opioid Stewardship in Pediatric Emergency Medicine.

OBJECTIVES: Poor opioid stewardship contributes to opioid misuse and adverse health outcomes. We sought to decrease opioid prescriptions in children 0 to 18 years treated for pain after fractures and cutaneous abscess drainage from 13.5% to 8%. Our secondary aims were to reduce opioid prescriptions written for >3 days from 41% to 10%, eliminate codeine prescriptions, increase safe opioid storage and disposal discharge instructions from 0% to 70%, and enroll all emergency department (ED) physicians in the state prescription drug monitoring program. METHODS: We implemented an intervention bundle on the basis of 4 key drivers at a pediatric ED: ED-wide education, changes in the electronic medical record, discharge resources, and process standardization. Two plan-do-study-act cycles were performed. Interventions included provider feedback on prescribing, safe opioid storage and disposal instructions, and streamlined electronic medical record functions. Run charts were used to analyze the effect of interventions on outcomes. Our balance measure was return ED or clinic visits for inadequate analgesia within 3 days. RESULTS: During the intervention period, 249 of 3402 (7.3%) patients with fractures and cutaneous abscesses were prescribed opioids. The percentage of opioid prescriptions >3 days decreased from 41% to 13.2% (P < .0001), codeine prescription dropped from 1.1% to 0% (P = .09), opioid discharge instructions increased 0% to 100% (P < .0001), and all physicians enrolled in the prescription drug monitoring program. There was no change in return visits for uncontrolled analgesia compared with the baseline (P = .79). CONCLUSIONS: A comprehensive opioid stewardship program can improve opioid prescribing practices of ED physicians and deliver information on safe storage and disposal of prescription opioids with a negligible effect on return visits for uncontrolled pain.

Patient, Caregiver, and Decliner Perspectives on Whether to Enroll in Adaptive Deep Brain Stimulation Research.

This research study provides patient and caregiver perspectives as to whether or not to undergo adaptive deep brain stimulation (aDBS) research. A total of 51 interviews were conducted in a multi-site study including patients undergoing aDBS and their respective caregivers along with persons declining aDBS. Reasons highlighted for undergoing aDBS included hopes for symptom alleviation, declining quality of life, desirability of being in research, and altruism. The primary reasons for not undergoing aDBS issues were practical rather than specific to aDBS technology, although some persons highlighted a desire to not be the first to trial the new technology. These themes are discussed in the context of "push" factors wherein any form of surgical intervention is preferable to none and "pull" factors wherein opportunities to contribute to science combine with hopes and/or expectations for the alleviation of symptoms. We highlight the significance of study design in decision making. aDBS is an innovative technology and not a completely new technology. Many participants expressed value in being part of research as an important consideration. We suggest that there are important implications when comparing patient perspectives vs. theoretical perspectives on the choice for or against aDBS. Additionally, it will be important how we communicate with patients especially in reference to the complexity of study design. Ultimately, this study reveals that there are benefits and potential risks when choosing a research study that involves implantation of a medical device.

Methodological synthesis of Bayesian phylodynamics, HIV-TRACE, and GEE: HIV-1 transmission epidemiology in a racially/ethnically diverse Southern U.S. context.

This study introduces an innovative methodological approach to identify potential drivers of structuring HIV-1 transmission clustering patterns between different subpopulations in the culturally and racially/ethnically diverse context of Houston, TX, the largest city in the Southern United States. Using 6332 HIV-1 pol sequences from persons newly diagnosed with HIV during the period 2010-2018, we reconstructed HIV-1 transmission clusters, using the HIV-TRAnsmission Cluster Engine (HIV-TRACE); inferred demographic and risk parameters on HIV-1 transmission dynamics by jointly estimating viral transmission rates across racial/ethnic, age, and transmission risk groups; and modeled the degree of network connectivity by using generalized estimating equations (GEE). Our results indicate that Hispanics/Latinos are most vulnerable to the structure of transmission clusters and serve as a bridge population, acting as recipients of transmissions from Whites (3.0 state changes/year) and from Blacks (2.6 state changes/year) as well as sources of transmissions to Whites (1.8 state changes/year) and to Blacks (1.2 state changes/year). There were high rates of transmission and high network connectivity between younger and older Hispanics/Latinos as well as between younger and older Blacks. Prevention and intervention efforts are needed for transmission clusters that involve younger racial/ethnic minorities, in particular Hispanic/Latino youth, to reduce onward transmission of HIV in Houston.

Emergency-Only Hemodialysis Policies: Ethical Critique and Avenues for Reform.

An estimated 6,500 undocumented immigrants in the United States have been diagnosed with end-stage renal disease (ESRD). These individuals are ineligible for the federal insurance program that covers dialysis and/or transplantation for citizens, and consequently are subject to local or state policies regarding the provision of healthcare. In 76% of states, undocumented immigrants are ineligible to receive scheduled outpatient dialysis treatments, and typically receive dialysis only when presenting to the emergency center with severe life-threatening symptoms. 'Emergency-only hemodialysis' (EOHD) is associated with higher healthcare costs, higher mortality, and longer hospitalizations. In this paper, we present an ethical critique of existing federal policy. We argue that EOHD represents a failure of fiduciary and professional obligations, contributes to moral distress, and undermines physician obligations to be good stewards of medical resources. We then explore potential avenues for reform based upon policies introduced at the state level. We argue that, while reform at the federal level would ultimately be a more sustainable long-term solution, state-based policy reforms can help mitigate the ethical shortcomings of EOHD.

A Systematic Review of Barriers Faced by Older Adults in Seeking and Accessing Mental Health Care.

Older adults in the United States have lower rates of mental health care utilization than young adults. To understand these lower rates of mental health care, we performed a systematic review, in accordance with PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines, of barriers that prevent older adults from seeking and accessing treatment. We searched PubMed, PsycINFO, and Clinical Key to identify studies of barriers to mental health treatment in the older adult population (in individuals 50 y of age and older). Thirty-two articles met inclusion criteria (English language and focused on barriers to care in older adults) and exclusion criteria (focus on non-United States populations, focus on younger adults, or no focus on barriers to care). We identified 5 categories of barriers to mental health care in older adults: (1) attitudes and knowledge among older adults; (2) comorbid medical conditions; (3) provider-related factors; (4) other extrinsic barriers (eg, cost, transportation, reliance on caregivers); and (5) unique factors that affect older adults in minority populations. Large studies have primarily identified intrinsic barriers, including negative attitudes toward mental health care and lack of perceived need for treatment, as preventing older adults from seeking mental health care. Minority populations have also been found to face cultural barriers and increased levels of stigma compared with non-Hispanic whites, although several of the identified articles concerning barriers among minority older adults involved qualitative studies with small samples. Larger quantitative studies may help clarify the relative importance of barriers affecting this population. Interventions that have been shown to increase access to mental health services for older adults include community-based care and integrated primary and psychiatric care, but these strategies can be difficult to implement in low-resource settings. More research is needed to determine which interventions and policies are most effective in targeting particular barriers.

The estimation of diagnostic accuracy of tests for COVID-19: A scoping review.

OBJECTIVES: To assess the methodologies used in the estimation of diagnostic accuracy of SARS-CoV-2 real-time reverse transcription polymerase chain reaction (rRT-PCR) and other nucleic acid amplification tests (NAATs) and to evaluate the quality and reliability of the studies employing those methods. METHODS: We conducted a systematic search of English-language articles published December 31, 2019-June 19, 2020. Studies of any design that performed tests on ≥10 patients and reported or inferred correlative statistics were included. Studies were evaluated using elements of the Quality Assessment of Diagnostic Accuracy Studies (QUADAS-2) guidelines. RESULTS: We conducted a narrative and tabular synthesis of studies organized by their reference standard strategy or comparative agreement method, resulting in six categorizations. Critical study details were frequently unreported, including the mechanism for patient/sample selection and researcher blinding to results, which lead to concern for bias. CONCLUSIONS: Current studies estimating test performance characteristics have imperfect study design and statistical methods for the estimation of test performance characteristics of SARS-CoV-2 tests. The included studies employ heterogeneous methods and overall have an increased risk of bias. Employing standardized guidelines for study designs and statistical methods will improve the process for developing and validating rRT-PCR and NAAT for the diagnosis of COVID-19.