Clinical outcomes in critically ill children on extracorporeal membrane oxygenation with severe thrombocytopenia.

INTRODUCTION: As international guidelines suggest keeping the platelet count between 50 and 100 × 109 cells/L in children on extracorporeal membrane oxygenation (ECMO), platelet transfusions are administered to two-thirds of ECMO days, and up to 70% of these patients still bleed. We aim to describe outcomes in critically ill children who develop severe thrombocytopenia on ECMO. METHODS: Single-center retrospective study, enrolling critically ill children on ECMO admitted at Children's Memorial Hermann, TX, between 1/2018 and 12/2022, with at least one platelet count below 50 × 109 cells/L (severe thrombocytopenia). Platelet counts were measured four times a day. We report platelet transfusion, bleeding, hemolysis, and clotting events within 6 h after transfusion, as well as ECMO duration and mortality. RESULTS: We enrolled 54 patients representing 337 ECMO days and 1190 platelet counts. Median weight was 3.7 kg and 54% were male. Severe thrombocytopenia was observed in 56% of platelet counts. Severe thrombocytopenia was not associated with bleeding in the subsequent 6 h (18% vs 20%, p = .95), but was associated with more frequent platelet transfusions (18% vs 11%, p = .001). There was no correlation between time spent with severe thrombocytopenia and the duration of ECMO (R2 = 0.03). While the time spent with severe thrombocytopenia was not associated with on-ECMO mortality rate (p = .36), there was an association with in-hospital mortality rate (p = .003). CONCLUSIONS: Our results indicate a restrictive platelet transfusion strategy is not associated with higher proportions of subsequent bleeding, duration of ECMO, or on-ECMO mortality rate. Multicenter studies are needed to evaluate further the appropriateness of this strategy.

How TikTok is being used to talk about abortion post-Roe: A content analysis of the most liked abortion TikToks.

OBJECTIVES: Access to information about abortion is essential for ensuring reproductive autonomy, particularly post-Roe. TikTok, a popular video-sharing application, may be a source of information about abortion, yet little is known about the tone and content of such videos. To fill this gap, we analyze the most liked abortion videos on TikTok three months following the U.S. Supreme Court decision Dobbs v. Jackson Women's Health Organization. STUDY DESIGN: We downloaded the top 200 most liked, publicly available TikTok videos when searching "abortion" on September 26, 2022 and recorded and summarized key video characteristics. We then qualitatively analyzed for content, tone, and common themes. RESULTS: The top 200 most liked TikTok videos collectively had approximately 164 million likes, nearly 10 million shares, and 4 million comments. Most videos expressed support for abortion and presented information that was political or personal in nature. Only two videos contained health information about obtaining or completing an abortion, and only five videos featured or were created by a medical provider. CONCLUSIONS: Findings reveal the far reach of TikTok, which underscores the importance of analyzing online sources of information about abortion. However, our mixed-methods analysis indicates that the most liked TikToks are a source of abortion news, political opinion, personal stories, and debate rather than a source of health information for abortion seekers. IMPLICATIONS: Our analysis finds that the top 200 most liked TikTok videos three months post-Dobbs are primarily political in nature. Relatively few videos provided practical information about accessing abortion care, presenting an opportunity for healthcare providers, public health advocates, and activists to improve access and awareness of new pathways to care. The most popular TikTok videos appear to disseminate news and political information rather than health information about abortion.

Experiences with misoprostol-only used for self-managed abortion and acquired from an online or retail pharmacy in the United States.

OBJECTIVES: This study aimed to understand individual experiences with medication abortion using misoprostol-only among people living in the United States. STUDY DESIGN: We conducted 31 semistructured anonymous in-depth interviews with individuals who used misoprostol-only for self-managed medication abortion. Participants were recruited from Aid Access, an online telemedicine organization that provided prescriptions for misoprostol to eligible people in all 50 states in May and June 2020 when a combined mifepristone and misoprostol regimen was unavailable. We coded transcripts with a flexible coding approach and focused on perceptions and experiences with use. RESULTS: Participants were knowledgeable about misoprostol. Previous abortion experiences shaped perceptions of misoprostol-only by allowing comparison to the mifepristone and misoprostol regimen. Most participants expressed an unwavering desire for an effective abortion method, regardless of the medications or regimen. Individual physical experiences with misoprostol, including bleeding, cramping, nausea, and diarrhea, varied in intensity and duration. Participants proactively managed symptoms with self-care strategies and drew extensively from their prior experiences with menstruation, miscarriage, abortion, and childbirth. Clear instructions and information on potential complications and what to expect throughout the abortion fostered a sense of preparedness, and personalized interactions with an online help desk brought comfort. CONCLUSIONS: Misoprostol offered an essential abortion method for study participants. This regimen was physically challenging for some, and there is potentially a greater need for communication and support for individuals using misoprostol-only regimens. Prior reproductive experiences informed participant's knowledge, preparedness, pain management, and ability to both recognize and manage potential complications. IMPLICATIONS: As restrictions on mifepristone continue, more people may use misoprostol-only regimens. All regimens can be supported with detailed instructions, clear expectations, information on signs of potential complications, and personalized support. To achieve reproductive autonomy, people must have access to a range of abortion care options that meet their needs.

Resilience-Informed Community Violence Prevention and Community Organizing Strategies for Implementation: Protocol for a Hybrid Type 1 Implementation-Effectiveness Trial.

BACKGROUND: Community violence is a persistent and challenging public health problem. Community violence not only physically affects individuals, but also its effects reverberate to the well-being of families and entire communities. Being exposed to and experiencing violence are adverse community experiences that affect the well-being and health trajectories of both children and adults. In the United States, community violence has historically been addressed through a lens of law enforcement and policing; the impact of this approach on communities has been detrimental and often ignores the strengths and experiences of community members. As such, community-centered approaches to address violence are needed, yet the process to design, implement, and evaluate these approaches is complex. Alternatives to policing responses are increasingly being implemented. However, evidence and implementation guidance for community-level public health approaches remain limited. This study protocol seeks to address community violence through a resilience framework-Adverse Community Experiences and Resilience (ACE|R)-being implemented in a major US city and leveraging a strategy of community organizing to advance community violence prevention. OBJECTIVE: The objective of this research is to understand the impact of community-level violence prevention interventions. Furthermore, we aim to describe the strategies of implementation and identify barriers to and facilitators of the approach. METHODS: This study uses a hybrid type 1 effectiveness-implementation design. Part 1 of the study will assess the effectiveness of the ACE|R framework plus community organizing by measuring impacts on violence- and health-related outcomes. To do so, we plan to collect quantitative data on homicides, fatal and nonfatal shootings, hospital visits due to nonaccidental injuries, calls for service, and other violence-related data. In Part 2 of the study, to assess the implementation of ACE|R plus community organizing, we will collect process data on community engagement events, deliver community trainings on community leadership and organizing, and conduct focus groups with key partners about violence and violence prevention programs in Milwaukee. RESULTS: This project received funding on September 1, 2020. Prospective study data collection began in the fall of 2021 and will continue through the end of 2023. Data analysis is currently underway, and the first results are expected to be submitted for publication in 2024. CONCLUSIONS: Community violence is a public health problem in need of community-centered solutions. Interventions that center community and leverage community organizing show promise in decreasing violence and increasing the well-being of community members. Methods to identify the impact of community-level interventions continue to evolve. Analysis of outcomes beyond violence-specific outcomes, including norms and community beliefs, may help better inform the short-term and proximal impacts of these community-driven approaches. Furthermore, hybrid implementation-effectiveness trials allow for the inevitable contextualization required to disseminate community interventions where communities drive the adaptations and decision-making. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/50444.

Experimentally determined traits shape bacterial community composition one and five years following wildfire.

Wildfires represent major ecological disturbances, burning 2-3% of Earth's terrestrial area each year with sometimes drastic effects above- and belowground. Soil bacteria offer an ideal, yet understudied system within which to explore fundamental principles of fire ecology. To understand how wildfires restructure soil bacterial communities and alter their functioning, we sought to translate aboveground fire ecology to belowground systems by determining which microbial traits are important post-fire and whether changes in bacterial communities affect carbon cycling. We employed an uncommon approach to assigning bacterial traits, by first running three laboratory experiments to directly determine which microbes survive fires, grow quickly post-fire and/or thrive in the post-fire environment, while tracking CO2 emissions. We then quantified the abundance of taxa assigned to each trait in a large field dataset of soils one and five years after wildfires in the boreal forest of northern Canada. We found that fast-growing bacteria rapidly dominate post-fire soils but return to pre-burn relative abundances by five years post-fire. Although both fire survival and affinity for the post-fire environment were statistically significant predictors of post-fire community composition, neither are particularly influential. Our results from the incubation trials indicate that soil carbon fluxes post-wildfire are not likely limited by microbial communities, suggesting strong functional resilience. From these findings, we offer a traits-based framework of bacterial responses to wildfire.

Air quality policy should quantify effects on disparities.

New tools can guide US policies to better target and reduce racial and socioeconomic disparities in air pollution exposure.

Factors Associated With Knowledge and Experience of Self-managed Abortion Among Patients Seeking Care at 49 US Abortion Clinics.

Importance: Patients attending US abortion clinics may consider or try self-managing their abortion before coming to the clinic, yet little is known about the factors associated with self-management behavior. Objective: To examine the prevalence and factors associated with considering or attempting a self-managed abortion before attending a clinic. Design, Setting, and Participants: This survey study included patients obtaining an abortion at 49 independent, Planned Parenthood, and academic-affiliated clinics chosen to maximize diversity in geographic, state policy, and demographic context in 29 states between December 2018 and May 2020. Data were analyzed from December 2020 to July 2021. Exposures: Obtaining an abortion at a clinic. Main Outcomes and Measures: Knowledge of medications used to self-manage an abortion, having considered medication self-management before attending the clinic, having considered any method of self-management before attending the clinic, and having tried any method of self-management before attending the clinic. Results: The study included 19 830 patients, of which 99.6.% (17 823 patients) identified as female; 60.9% (11 834 patients) were aged 20 to 29 years; 29.6% (5824 patients) identified as Black, 19.3% (3799 patients) as Hispanic, and 36.0% (7095 patients) as non-Hispanic White; 44.1% (8252 patients) received social services; and 78.3% (15 197 patients) were 10 weeks pregnant or less. Approximately 1 in 3 (34%) knew about self-managed medication abortion, and among this subsample of 6750 patients, 1 in 6 (1079 patients [16.1%]) had considered using medications to self-manage before attending the clinic. Among the full sample, 1 in 8 (11.7%) considered self-managing using any method before clinic attendance, and among this subsample of 2328 patients, almost 1 in 3 (670 patients [28.8%]) attempted to do so. Preference for at-home abortion care was associated with considering medication self-management (odds ratio [OR], 3.52; 95% CI, 2.94-4.21), considering any method of self-management (OR, 2.80; 95% CI, 2.50-3.13), and attempting any method of self-management (OR, 1.37; 95% CI, 1.10-1.69). Experiencing clinic access barriers was also associated with considering medication self-management (OR, 1.98; 95% CI, 1.69-2.32) and considering any method of self-management (OR, 2.09; 95% CI, 1.89-2.32). Conclusions and Relevance: In this survey study, considering self-managed abortion was common before accessing in-clinic care, particularly among those on the margins of access or with a preference for at-home care. These findings suggest a need for expanded access to telemedicine and other decentralized abortion care models.

Safety and effectiveness of self-managed abortion using misoprostol alone acquired from an online telemedicine service in the United States.

OBJECTIVES: To evaluate self-reported outcomes and serious adverse events following self-managed medication abortion using misoprostol alone provided from an online service. STUDY DESIGN: We conducted a retrospective record review of self-managed abortion outcomes using misoprostol obtained from Aid Access, an online telemedicine organization serving United States (US) residents, between June 1, 2020, and June 30, 2020. The main outcomes were the proportion of people who reported ending their pregnancy without instrumentation intervention and the proportion who received treatment for serious adverse events. RESULTS: During the study period, 1016 people received prescriptions for misoprostol. We obtained follow-up information for 610 (60%) of whom 568 confirmed use of the medication and 42 confirmed non-use. When taking the medication, 96% were at or less than 10 weeks' gestation and 4% were more than 10 weeks. Overall, 88% (95% CI: 84.6-90.2) reported successfully ending their pregnancy without instrumentation intervention. Of the 568 who took the misoprostol, 12 (2%) reported experiencing one or more serious adverse events and 20 (4%) reported experiencing a symptom of a potential complication. CONCLUSIONS: Self-managed medication abortion using misoprostol provided by an online telemedicine service has a high rate of effectiveness and a low rate of serious adverse events. Outcomes compare favorably to other service delivery models using a similar regimen. As mifepristone continues to be over-regulated and the 2022 US Supreme Court ruling allows states to severely restrict access to in-clinic abortion care, this regimen is a promising option for self-managed abortion in the US.

Health of Post-Institutionalized Haitian Children Adopted to the United States.

OBJECTIVES: Haiti remains a principal placement country for intercountry adoptees to the United States. This project reports the health status of children adopted from Haiti arriving to the U.S. and compares them to intercountry adoptees from other regions. METHODS: A retrospective chart review was conducted of adoptees placed in the U.S. from Haiti (n=87), age and sex matched with intercountry adoptees placed in the U.S. from Asia (n=87) and Latin America (n=87) between January 2010 and November 2019. Data on immunization status, contagious diseases, and nutrition and growth were analyzed via linear, logistic, and multinomial regression. RESULTS: After adjusting for age, sex, and standardized height, children adopted from Haiti, compared to adoptees from Latin America and Asia, demonstrated a lack of immunity to hepatitis B (OR=5.89;6.87), increased immunity to hepatitis A (OR=0.38;0.30), infection by two or more parasites (OR=8.43;38.48), high lead levels (OR=23.79;7.04), and anemia (OR=15.25;9.18). Unexpectedly, children adopted from Haiti had greater standardized height (-1.28 vs. -1.82 and -2.13) and standardized weight (-0.32 vs. -0.57 and -1.57) than their counterparts from Latin America and Asia. CONCLUSIONS: Children adopted from Haiti face complex medical challenges undoubtedly related to the country's low socioeconomic status (SES) and the impact of recurrent natural disasters and governmental neglect on public health infrastructure. Appropriate care is critical in preventing and avoiding transmission of infectious diseases in adoptees and family members. The high incidence of anemia and elevated lead levels may further exacerbate the developmental effects of early institutional deprivation.

A general framework for subgroup detection via one-step value difference estimation.

Recent statistical methodology for precision medicine has focused on either identification of subgroups with enhanced treatment effects or estimating optimal treatment decision rules so that treatment is allocated in a way that maximizes, on average, predefined patient outcomes. Less attention has been given to subgroup testing, which involves evaluation of whether at least a subgroup of the population benefits from an investigative treatment, compared to some control or standard of care. In this work, we propose a general framework for testing for the existence of a subgroup with enhanced treatment effects based on the difference of the estimated value functions under an estimated optimal treatment regime and a fixed regime that assigns everyone to the same treatment. Our proposed test does not require specification of the parametric form of the subgroup and allows heterogeneous treatment effects within the subgroup. The test applies to cases when the outcome of interest is either a time-to-event or a (uncensored) scalar, and is valid at the exceptional law. To demonstrate the empirical performance of the proposed test, we study the type I error and power of the test statistics in simulations and also apply our test to data from a Phase III trial in patients with hematological malignancies.

Applying a Social Determinants of Health Approach to the Opioid Epidemic.

Ohio is one of the hardest-hit states in the United States when it comes to opioid overdose deaths. Confronted with over 4,000 opioid overdose deaths in 2017, the Ohio Department of Mental Health and Addiction Services launched the Community Collective Impact Model for Change (CCIM4C) initiative to encourage 12 Ohio counties to think more deeply about primary prevention. By moving upstream and taking a look at the causes of the opioid crisis, the counties involved in the CCIM4C initiative were able to expand the range of potential partners and potential solutions, moving from emergency response alone to broader efforts to support social connection, economic security, and other social determinants of health. Each county brought together a wide array of partners, including local employers, community colleges, health care organizations, faith leaders, youth-serving organizations, first responders, librarians, school board members, public health officials, parks and recreation staff, and people with lived experience. This article focuses on the efforts of three counties-Ashtabula, Lorain, and Lawrence-to take on the community conditions that increase the risk of unhealthy substance use and addiction. It describes what they learned as they went beyond a sole focus on preventing opioid overdoses and deaths-as critically important as that is-to transforming their communities to support health and well-being in the first place.

Remote ex vivo lung perfusion at a centralized evaluation facility.

BACKGROUND: In the US, only 23% of lungs offered for transplantation are transplanted. Ex vivo lung perfusion (EVLP) allows for evaluation of additional donor lungs; its adoption has been limited by resources and expertise. Dedicated facilities with a centralized lung evaluation system (CLES) could expand access to EVLP. METHODS: In this unblinded, nonrandomized, traditional feasibility study, 7 US transplant centers referred lungs declined for standard transplantation to a dedicated EVLP facility, which utilized a CLES. EVLP was remotely monitored by the transplant teams. CLES lungs were matched with contemporaneous conventional static cold-preserved controls at each center. RESULTS: A total of 115 recipients were enrolled, and 66 received allografts from 63 donors after EVLP at the dedicated CLES facility. Forty-nine contemporaneous patients served as controls. Primary graft dysfunction grade 3 at 72 hours (PGD3-72 hours) was higher in the CLES group with 16 (24%) vs 2 (4%) in the control (common RD 95% CI, 0.07-0.32; p = 0.0009). All recipients survived to 30 days and 1-year survival was similar for both groups (92% controls vs 89% CLES; common RD 95% CI, -0.14-0.08; p = 0.58). Total preservation time, hospital and ICU lengths of stay, and time to first extubation were longer in the CLES group. CONCLUSIONS: Remote ex vivo perfusion of lung allografts declined for conventional transplantation at a dedicated CLES facility is feasible and resulted in additional transplants. Recipients of allografts assessed with a CLES had a higher rate of PGD3-72 hours, but similar 30-day and 1-year outcomes compared to conventional lung recipients. (NCT02234128).

Learning pathways for engagement: Understanding drivers of pro-environmental behavior in the context of protected area management.

The participation of local communities in management decisions is critically important to the long-term salience and therefore, success, of protected areas. Engaging community members in meaningful ways requires knowledge of their behavior and its antecedents, particularly values. Understanding how learning influences cooperation in conservation initiatives is also fundamentally important for supporting decisions being made about public lands. However, there is little empirical evidence of how learning from different information sources works in conjunction with values that shape behavior. Using data from a household survey of residents living in the Denali region of Interior Alaska, U.S, we estimated a two-step structural equation model to understand the psychological reasons why stakeholders made decisions to collectively benefit the environment. Results showed that more diverse pathways by which learning occurred were instrumental in explaining why residents performed pro-environmental behaviors over the past year. Additionally, values that reflected the goals of eudaimonia influenced the transfer and negotiation of knowledge exchange among stakeholders as a correlate of behavior. Environmental concern and personal norms were positively associated with reported behaviors operationalized as social environmentalism and living in an environmentally conscientious manner, whereas environmental concern and willingness to pay for protected area management positively influenced civic engagement. We argue that broadening the range of learning spaces and considering a more diverse array of values in communities surrounding protected areas will encourage daily lifestyle changes, social interactions to support environmentalism, and more robust, pluralistic forms of public engagement in natural resource management.

A treatment-specific marginal structural Cox model for the effect of treatment discontinuation.

Patients taking a prescribed medication often discontinue their treatment; however, this may negatively impact their health outcomes. If doctors had statistical evidence that discontinuing some prescribed medication shortened, on average, the time to a clinical event (e.g., death), they could use that knowledge to encourage their patients to stay on the prescribed treatment. We describe a treatment-specific marginal structural Cox model for estimation of the causal effect of treatment discontinuation on a survival endpoint. The effect of treatment discontinuation is quantified by the hazard ratio of the event hazard rate had the population followed the regime "take treatment a until it is discontinued at some time ν ," versus the event hazard rate had the population never discontinued treatment a . Valid causal analysis requires control for treatment confounding, regime confounding, and censoring due to regime violation. We propose new inverse probability of regime compliance weights to address the three issues simultaneously. We apply the framework to data from the Global Anticoagulant Registry in the FIELD-Atrial Fibrillation (GARFIELD-AF) study. Patients from this study are treated with one of two types of oral anticoagulants (OACs). We test whether the causal effect of treatment discontinuation differs by type of OAC, and we also estimate the size and direction of the effect. We find evidence that OAC discontinuation increases the hazard for certain events, but we do not find evidence that this effect differs by treatment.

U.S. Abortion Care Providers' Perspectives on Self-Managed Abortion.

State-level restrictions on abortion access may prompt greater numbers of people to self-manage their abortion. The few studies exploring perspectives of providers towards self-managed abortion are focused on physicians and advanced practice clinicians. Little is known about the wider spectrum of abortion care providers who encounter self-managed abortion in their clinic-based work. To gain a deeper understanding of this issue and inform future care delivery, we conducted in-depth interviews with 46 individuals working in a range of positions in 46 abortion clinics across 29 states. Our interpretative analysis resulted in themes shaped by beliefs about safety and autonomy, and a tension between the two: that self-managed abortion is too great a risk, that people are capable of self-managing an abortion, and that people have a right to a self-managed abortion. Our findings highlight the importance of increasing knowledge and clarifying values among all abortion care providers, including clinic staff.

Oral treprostinil improves pulmonary vascular compliance in pulmonary arterial hypertension.

Oral treprostinil has been shown to improve exercise capacity and delay disease progression in patients with pulmonary arterial hypertension (PAH), but its effects on hemodynamics are not well-characterized. The FREEDOM-EV trial was a Phase III, international, placebo-controlled, double-blind, event-driven study in 690 participants with PAH who were taking a single oral PAH therapy. FREEDOM-EV demonstrated a significantly reduced risk for clinical worsening with oral treprostinil taken three times daily and did not uncover new safety signals in PAH patients. Sixty-one participants in the FREEDOM-EV trial volunteered for a hemodynamics sub-study. Pulmonary artery compliance (PAC), a ratio of stroke volume to pulmonary pulse pressure, significantly increased from Baseline to Week 24 in the oral treprostinil group compared with the placebo group (geometric mean 26.4% active vs. -6.0% placebo; ANCOVA p=0.007). There was a significant increase in cardiac output in the oral treprostinil group compared to the placebo group (geometric mean 11.3% active vs. -6.4% placebo; ANCOVA p=0.005) and a corresponding significant reduction in pulmonary vascular resistance (PVR) (geometric mean -21.5 active vs. -1.8% placebo; ANCOVA p=0.02) from Baseline to Week 24. These data suggest that increased compliance contributes to the physiological mechanism by which oral treprostinil improves exercise capacity and delays clinical worsening for patients with PAH.

Experiences seeking, sourcing, and using abortion pills at home in the United States through an online telemedicine service.

A growing number of people in the United States seek to self-manage their abortions by self-sourcing abortion medications online. Prior research focuses on people's motivations for seeking self-management of abortion and experiences trying to obtain medications. However, little is known about the experiences of people in the U.S. who actually complete a self-managed abortion using medications they self-sourced online. We conducted anonymous in-depth interviews with 80 individuals who sought abortion medications through Aid Access, the only online telemedicine service that provides abortion medications in all 50 U.S. states. Through grounded theory analysis we identified five key themes: 1) participants viewed Aid Access as a "godsend"; 2) Fears of scams, shipping delays, and surveillance made ordering pills online a "nerve-racking" experience; 3) a "personal touch" calmed fears and fostered trust in Aid Access; 4) participants were worried about the "what ifs" of the self-managed abortion experience; and 5) overall, participants felt that online telemedicine met their important needs. Our findings demonstrate that online telemedicine provided by Aid Access not only provided a critical service, but also offered care that participants deemed legitimate and trustworthy.