Racial-ethnic disparities in stroke care: the American experience: a statement for healthcare professionals from the American Heart Association/American Stroke Association

Racial and Ethnic Disparities in Ischemic Stroke Severity in the National Inpatient Sample Between 2018 and 2021

BACKGROUND

The purpose of this study is to examine the association between race and ethnicity and ischemic stroke severity in the United States.

METHODS

We performed an analysis of adult hospital discharges in the National Inpatient Sample from 2018 to 2021 with a primary discharge diagnosis of ischemic stroke. We stratified our cohort based on self-reported race and ethnicity and evaluated stroke severity using the National Institutes of Health Stroke Scale. Age- and sex-adjusted estimates of the National Institutes of Health Stroke Scale were derived from linear regression models.

RESULTS

We included 231 396 stroke discharges with a mean National Institutes of Health Stroke Scale of 6.5±7.2. The cohort was 68.1% White, 17.4% Black, 8.2% Hispanic, and 6.3% other. The age- and sex-adjusted National Institutes of Health Stroke Scale for White patients was 6.25 (95% CI, 6.22-6.29), for Black patients was 7.12 (95% CI, 7.05-7.19), for Hispanic patients was 6.86 (95% CI, 6.76-6.97), and for patients of other races and ethnicities was 7.29 (95% CI, 7.18-7.41). Further adjustment for the Charlson Comorbidity Index, socioeconomic factors, and poorly controlled hypertension or diabetes did not significantly alter these findings.

CONCLUSIONS

In a large, contemporary, and nationally representative sample of patients with acute ischemic stroke, we show an association between non-White race and ethnicity and higher stroke severity. These results are concerning for an underappreciated health disparity in acute ischemic stroke.

Novel Network Analysis of County- and Individual-Level Factors Associated With Functional Outcomes After Stroke

BACKGROUND

Social determinants are known to impact stroke risk and poststroke outcomes. Using complexity science, we examined interrelations between county- and individual-level social and clinical determinants influencing stroke functional outcomes.

METHODS

We examined a retrospective cohort of 2 961 664 patients diagnosed with acute ischemic or hemorrhagic stroke from 2218 US hospitals participating in the Get With The Guidelines-Stroke Registry from 2013 to 2019, linked by ZIP code with the county-level institute for health metrics and evaluation data. We constructed multilayer networks, estimating mixed graphical models of 32 nodes representing social and clinical factors. Networks included 4 layers of factors: (1) county-level social, (2) individual-level social, (3) clinical comorbidities, and (4) hospital encounters. Networks were estimated for patients with less favorable (modified Rankin Scale score 3-6) versus favorable (modified Rankin Scale score 0-2) outcomes. We compared network structure and node centrality measures between groups using bootstrap permutation analyses, identifying influential (hub) nodes.

RESULTS

The overall influence of social determinants (global connectivity) was greater in patients with less favorable outcomes (P<0.001). Homelessness and Black race were hub nodes, indicating their role in mediating relationships between social and downstream clinical factors in patients with less favorable outcomes. Being uninsured had greater influence (closeness centrality; P<0.001) in patients with less favorable outcomes, indicating its role in amplifying the effects of social determinants. Greater county-level high school completion (P<0.001) and a lower proportion of the population living below the US poverty line (P=0.030) were directly associated with faster onset-to-arrival time in patients with less favorable functional outcomes. The clinical-social determinant network explained 34% of the variance of modified Rankin Scale scores.

CONCLUSIONS

Social determinants have a substantial influence on functional outcomes after stroke. County-level poverty directly affected onset-to-arrival time and quality of care. Health insurance status and homelessness were influential and modifiable patient-level factors that may serve as critical leverage points for future interventions aimed at improving outcomes.

NeuroICU FastTrack: Rapid Disposition of Patients with Intracerebral Hemorrhage from the Emergency Department to Neuro-ICU

BACKGROUND

Emergency department length of stay (EDLOS) directly impacts outcomes of critically ill patients, with the risk of in-hospital mortality increasing by nearly 40% when an intensive care unit (ICU) bed is delayed beyond 4 h. Patients with intracerebral hemorrhage (ICH) suffer from worse functional outcomes and higher mortality when EDLOS exceeds 5 h, even for EDLOS exceeding just 1 h. Our goal was to implement an expedited triage pathway to reduce EDLOS of patients with ICH to less than 3 h and evaluate for downstream reduced morbidity and mortality.

METHODS

We conducted a retrospective analysis of patients with ICH evaluated in the emergency department (ED) at an academic comprehensive stroke center between January 1, 2022, and June 30, 2023. Univariate and multivariate logistic regression analyses were conducted to investigate the association between the NeuroICU FastTrack intervention with EDLOS less than 3 h and the rate of in-hospital mortality.

RESULTS

A total of 234 patients with ICH arrived to the ED and were admitted to the neuro-ICU. Post implementation, there was a statistically significant decrease in EDLOS from an average of 6.6 h to 4 h (p < 0.001) and a significant decrease in patient mortality (p = 0.006). There was also a reduction in mortality to 9.3% (p = 0.006) compared to a preintervention mortality rate of 22.9%. Additionally, the morbidity outcome (mRS of 0-2) remained relatively constant in both groups preintervention (23%) to post intervention (28%).

CONCLUSIONS

Consistent with prior published evidence and National Institute of Neurological Disorders and Stroke recommendations, a shorter EDLOS significantly decreased mortality, but there was no difference in morbidity in our population. The NeuroICU FastTrack process expedited critically ill ICH patient throughput from the ED to the ICU, enhanced bed availability through streamlined procedures, and improved patient outcomes.

Associations Between Measures of Structural Racism and Receipt of Acute Ischemic Stroke Interventions in the United States

BACKGROUND

Structural racism and rural/urban differences in stroke care affect care delivery and outcomes. We explored the interplay among structural racism, urbanity, and intravenous thrombolysis (tissue plasminogen activator) and endovascular thrombectomy (ET).

METHODS AND RESULTS

In this retrospective study using complete, deidentified inpatient Medicare data (2016-2019), we identified incident acute ischemic stroke admissions, demographics, and hospital-level variables. Medicare beneficiaries aged ≥65 years with incident acute ischemic stroke admission in large metropolitan and nonurban settings were included. Validated structural racism metrics at the county level and a composite structural racism score that incorporated measures of segregation, housing, employment, education, and income were studied. Among 951 914 patients, rural hospitals demonstrated lower intensive care unit capacity (27.5% versus 88.6%), stroke certification (5.3% versus 38.4%), and rates of tissue plasminogen activator (1.6% versus 12.3%) and ET (<1% versus 3.8%). Large metropolitan areas demonstrated higher levels of income inequality (Gini index -0.15 versus 0.11 SD), and racial segregation (dissimilarity index 0.29 SD higher than the US mean). The composite structural racism score was associated with increased odds of tissue plasminogen activator receipt (odds ratio, 1.47 [95% CI, 1.33-1.63]) and ET (odds ratio, 4.15 [95% CI, 2.98-5.79]). Despite greater access to stroke care in urban areas, a persistent racial disparity remained, with Black patients less likely to receive tissue plasminogen activator (odds ratio, 0.70 [95% CI, 0.68-0.72]) and ET (odds ratio, 0.63 [95% CI, 0.60-0.66]) compared with White patients.

CONCLUSIONS

We found persistent disparities in stroke care access and outcomes, influenced by structural racism and rural-urban differences. Further research should explore interactions between structural racism, urbanity, and health care delivery to inform effective interventions.

Racial Disparities in Outcomes of Delivery and Cardiac Complications Among Pregnant Women with Congenital Heart Disease

Advances in cardiology have led to improved survival among patients with congenital heart disease (CHD). Racial disparities in cardiovascular and maternal outcomes are well known and are likely to be more profound among pregnant women with CHD. Using the 2001 to 2018 National Inpatient Sample, we identified all hospitalizations for delivery among women ≥ 18 years of age with CHD. Unadjusted and adjusted between-race differences in adverse maternal cardiovascular, obstetric, and fetal events were assessed using logistic regression models. During the study period, we identified 52,711 hospitalizations for delivery among women with concomitant CHD. Of these, 66%, 11%, and 16% were White, Black, and Hispanic, respectively. Obstetric complications and fetal adverse events were higher among Blacks compared to Whites and Hispanics (44% vs. 33% vs. 37%, p < .001; 36% vs. 28% vs. 30%, p < .001), respectively. No between-race differences were observed in overall cardiovascular adverse events (27% vs. 24% vs. 23%, p < .21). However, heart failure was significantly higher among Black women (3.6% vs. 1.7% vs. 2.2%, p = 0.001). While a lower income quartile was associated with higher rates of adverse outcomes, adjustment for income did not attenuate the adverse impact of race. Black females with CHD diagnoses were more likely to experience adverse obstetric, fetal events, and heart failure compared to White and Hispanic women irrespective of their income status. Further research is needed to identify causes and devise interventions to mitigate racial disparities in the care of pregnant women with CHD.

Enhancing Stroke Awareness and Activation Among High-Risk Populations: A Randomized Direct Mail Intervention in Diverse Healthcare Settings

BACKGROUND

Many patients are unaware of their stroke risk. The purpose of this research was to compare the effect of behaviorally tailored mailed messages on patient activation to reduce stroke risk.

METHODS

Randomized parallel group clinical trial. We used electronic health records to construct Framingham Stroke Risk Scores in primary care patients from 1 Veterans Health Administration (VA) and 1 non-VA healthcare system, Eskenazi Health System (EHS). Four stroke risk messages were developed through patient interviews: standard, incentive ($5 gift card), salience, and incentive plus salience. The standard message served as the comparison group. Patients in the highest Framingham Stroke Risk Score quintile were randomly assigned to receive one of the messages. All letters asked the patient to call a stroke prevention coordinator, the primary outcome. Response to the messages was modeled separately in the 2 cohorts using logistic regression.

RESULTS

In total, 2084 EHS patients (mean age, 65.6; 36% male; 68% Black; mean Framingham Stroke Risk Score, 13.1) and 1759 VA patients (mean age, 75.6; 99% male; 86% White; mean Framingham Stroke Risk Score, 18.6) received a letter. Rates of calls to the coordinator were 13% among the EHS and 23% among the VA cohort. The EHS cohort was significantly more likely to respond to the incentive message compared with the standard message (odds ratio, 1.97 [95% CI, 1.17-3.09]), and the VA cohort was more likely to respond to the incentive plus salience message (odds ratio, 1.50 [95% CI, 1.02-2.22]). Among individuals calling the coordinator, 31% of the EHS cohort and 27% of the VA cohort were unaware they had stroke risk factors.

CONCLUSIONS

A mailed message including a $5 incentive was more effective than a standard message in engaging high-risk patients with their healthcare system, including a salience message may also be important in some patient populations. Many primary care patients are unaware of their stroke risk.

REGISTRATION

URL: https://www.clinicaltrials.gov; Unique identifier: NCT02721446.

Hyperlipidemia risk factors among middle-aged population in the United States

Hyperlipidemia, a major risk factor for cardiovascular disease, disproportionately affects racial and ethnic minority populations. This cross-sectional study examined the prevalence and risk factors for hyperlipidemia among middle-aged adults in the United States using data from the fifth wave of the Adolescent to Adult Health Study (Add Health). The study analyzed merged sociodemographic and biomarker data (N = 4,196) using descriptive statistics and binary logistic regression. The mean age was 37.14 years (SD = ±1.99), with a slightly higher proportion of males (50.38%). The overall prevalence of hyperlipidemia was 16.26%, with higher rates observed in males (20.1%) compared to females. Notably, Asian individuals had significantly higher odds of hyperlipidemia (OR = 2.70, 95% CI: 1.28-5.65), whereas Black/African Americans had a significantly lower risk (OR = 0.57, 95% CI: 0.34-0.94) compared to Whites. Chronic health conditions, including hypertension (OR = 2.46, 95% CI: 1.72-3.52) and diabetes (OR = 4.95, 95% CI: 3.08-7.97), were strong predictors of hyperlipidemia. Additionally, individuals with higher income levels had increased odds of hyperlipidemia (OR = 1.10, 95% CI: 1.01-1.19). Contrary to prior research, obesity was not significantly associated with hyperlipidemia risk. Physical activity was marginally protective, though the effect lost significance in the adjusted model. These findings highlight the importance of targeted cardiovascular health interventions, particularly for Asian populations and those with chronic conditions, to reduce disparities in hyperlipidemia and improve public health outcomes.

Assessment of the Sensitivity of a Smartphone App to Assist Patients in the Identification of Stroke and Myocardial Infarction: Cross-Sectional Study

Background

Most people do not recognize symptoms of neurological and cardiac emergencies in a timely manner. This leads to delays in hospital arrival and reduced access to therapies that can open arteries. We created a smartphone app to help patients and families evaluate if symptoms may be high risk for stroke or heart attack (myocardial infarction, MI). The ECHAS (Emergency Call for Heart Attack and Stroke) app guides users to assess their risk through evidence-based questions and a test of weakness in one arm by evaluating finger-tapping on the smartphone.

Objective

This study is an initial step in the accuracy evaluation of the app focused on sensitivity. We evaluated whether the app provides appropriate triage advice for patients with known stroke or MI symptoms in the Emergency Department. We designed this study to evaluate the sensitivity of the app, since the most dangerous output of the app would be failure to recognize the need for emergency evaluation. Specificity is also important, but the consequences of low specificity are less dangerous than those of low sensitivity.

Methods

In this single-center cross-sectional study, we enrolled patients presenting with symptoms of possible stroke or MI. The ECHAS app assessment consisted of a series of evidence-based questions regarding symptoms and a test of finger-tapping speed and accuracy on the phone's screen to detect unilateral arm weakness. The primary outcome was the sensitivity of the ECHAS app in detecting the need for ED evaluation. The secondary outcome was the sensitivity of the ECHAS app in detecting the need for hospital admission. Two independent and blinded board-certified physicians reviewed the medical record and adjudicated the appropriateness of the ED visit based on a 5-point score (ground truth). Finally, we asked patients semistructured questions about the app's ease of use, drawbacks, and benefits.

Results

We enrolled 202 patients (57 with stroke and 145 with MI). The ECHAS score was strongly correlated with the ground truth appropriateness score (Spearman correlation 0.41, P<.001). The ECHAS app had a sensitivity of 0.98 for identifying patients in whom ED evaluation was appropriate. The app had a sensitivity of 1.0 for identifying patients who were admitted to the hospital because of their ED evaluation. Patients completed an app session in an average of 111 (SD 60) seconds for the stroke pathway and 60 (SD 33) seconds for the MI pathway. Patients reported that the app was easy to use and valuable for personal emergency situations at home.

Conclusions

The ECHAS app demonstrated a high sensitivity for the detection of patients who required emergency evaluation for symptoms of stroke or MI. This study supports the need for a study of specificity of the app, and then a prospective trial of the app in patients at increased risk of MI and stroke.

Roadmap for Health Equity: Understanding the Importance of Community-Engaged Research

Achieving health equity in stroke prevention, treatment, and recovery has continued to be a significant challenge. This article highlights the significance of health equity and the role of community-engaged research in addressing stroke disparities, including concepts around health equity as the fair and just opportunity for everyone to attain their highest level of health and well-being. Social determinants impact stroke incidence, prevalence, morbidity, and mortality, which emphasizes the importance of intersectionality and social risk-informed care. A comprehensive roadmap for achieving health equity in stroke through the integration of community-engaged research is presented, including the necessity of community involvement in all aspects of research. Community is defined beyond geographic boundaries, highlighting the importance of shared identities and values. The process of developing targeted goals with communities toward social justice reform is reviewed, including an evolved community engagement framework, emphasizing the need for training to inform about issues and collaborative leadership models. Several stroke disparities intervention studies are highlighted, demonstrating the successful incorporation of community engagement into intervention design and intervention platforms. For enhanced engagement, the use of community health workers and better integration of community health worker models are essential. There may be a critical need for community engagement to optimize inclusion in clinical trials. Finally, acknowledging the complexities of research around decreasing stroke disparities in prevention, treatment, and recovery, this article delves into a framework for understanding the mechanisms by which interventions affect inequities and the need for multifaceted solutions with the community as a partner. Highlighting the roadmap to health equity, this research argues that community engagement is an integral component at all steps along the road to achieving optimum brain health through equitable stroke treatment, prevention, and recovery.

Ethnic Differences in Atrial Fibrillation in the United Kingdom

Background

Within the United States, White individuals experience a higher risk of atrial fibrillation (AF) while exhibiting a lower AF-related stroke risk compared to other ethnic groups. It is possible that these observations stem from phenomena unique to the United States, such as differential health care access. The United Kingdom provides socialized medicine, which ostensibly promotes equitable health care access.

Objectives

The purpose of the study was to examine whether ethnic differences in the risks of AF and AF-related stroke and systemic infarcts exist in the United Kingdom.

Methods

We leveraged longitudinal data from the UK Biobank between January 1, 2006, and June 30, 2020. Ethnicity was categorized as White, Black, South Asian, Chinese, or multiracial. Incident AF, stroke, and systemic infarct were ascertained from in- and out-patient records.

Results

A total of 458,785 participants (438,333 White, 7,244 Black, 9,143 South Asian, 1,376 Chinese, and 2,689 multiracial) were included. After excluding those with prevalent AF, 8,706 developed incident AF. Black individuals (HR: 0.60; 95% CI: 0.49-0.74; P < 0.001), South Asians (HR: 0.59; 95% CI: 0.49-0.72; P < 0.001), and Chinese (HR: 0.31; 95% CI: 0.12-0.83; P = 0.002) each exhibited substantially lower risks of AF compared to White individuals after multivariable adjustment. In AF participants, incident stroke and systemic infarct occurred in 1,550. No significant differences in the risk of AF-related stroke and systemic infarcts by ethnicity were detected, but small numbers of these events were present.

Conclusions

In a European population with universal access to health care, White individuals consistently experienced the highest risk of AF, but there were no detectable differences in AF-related stroke or systemic infarcts.

Socioeconomic influences on stroke outcomes: A comprehensive zip code-based hospital analysis

BACKGROUND AND OBJECTIVES

Stroke remains a leading cause of morbidity and mortality worldwide. Socioeconomic disparities significantly affect the treatment and outcomes of cardiovascular and cerebrovascular diseases, including acute ischemic stroke. This study examines patients treated at Thomas Jefferson University Hospital, with ZIP code-based socioeconomic data predominantly representing areas in Pennsylvania and New Jersey, as the majority of patients originate from these regions.

METHODS

This study is a retrospective analysis based on a prospectively maintained database of 697 patients who underwent mechanical thrombectomy between 2016 and 2023. ZIP codes were retrospectively added to the database to determine socioeconomic status (SES). SES was assessed by matching patient ZIP codes to median household income data from the Census for the years 2016-2022. Baseline characteristics, stroke characteristics, procedural details, and outcomes were collected. Patients were stratified into income quintiles (Q1: $14,658-$52,635; Q2: $52,905-$64,046; Q3: $64,140-$77,737; Q4: $78,449-$95,128; Q5: $95,231-$217,674). Multivariate regression was conducted to identify predictors of good functional outcomes (mRS 0-2).

RESULTS

The study included 697 patients representing 270 zip codes distributed across income quintiles as follows: Q1 (n = 140), Q2 (n = 142), Q3 (n = 138), Q4 (n = 138), and Q5 (n = 139). Significant racial differences were observed between income quintiles, with a higher proportion of African-American patients in Q1 (40.7 %) compared to Q5 (19.9 %; p < 0.001), and more white patients in Q5 (82.7 %) compared to Q1 (47.1 %; p < 0.001). The Onset to arterial puncture time was longer in Q1 (369 min) compared to Q5 (258 min; p = 0.004). There were no significant differences in stroke outcomes such as successful recanalization (TICI 2b-3), hemorrhagic transformation, median NIHSS score on discharge, 30-day readmission, disposition to home, or length of stay between Q1 and Q5. SES was not a significant predictor of good functional outcomes (mRS 0-2).

CONCLUSION

This study found no significant differences in stroke outcomes between low SES and high SES patients undergoing mechanical thrombectomy for acute ischemic stroke. Patients from higher SES had a shorter duration from stroke onset to arterial puncture, and there was a tendency though not significant for higher SES patients to have a higher rate of 30-day readmission, and higher rate of discharge to home. Further research is needed to confirm.

Family's Caregiving Status and Post-Stroke Functional Recovery During Subacute Period from Discharge to Home: A Retrospective Study

Background/Objectives: Family members, often informal caregivers, play a crucial role in providing home care for stroke survivors. The period following discharge to home after receiving acute stroke management in a hospital includes the subacute phase of stroke and remains critical to the recovery of stroke patients. This study evaluated the association between family caregiving and post-stroke functional recovery after discharge to home. Methods: Data from 402 patients with stroke were obtained from the Korea University Ansan Hospital Stroke Center from January 2019 to May 2022. The family's caregiving status was evaluated for family burden and supportable environment in the home. This study's outcome of interest was the modified Rankin Scale (mRS) at discharge to home and three months after stroke onset. The repeated mRS scores were analyzed using the Linear Mixed Model. Results: Median days from discharge to 3 months after stroke onset was 81.0 days. The median score of mRS at discharge was 2.0, and the score at three months after stroke onset was 2.0. The distribution of mRS score 0-2 was 60.9% at discharge and 72.1% at three months after stroke onset. In Linear Mixed Models after adjustments with covariables, the family's caregiving status was positively associated with repeated mRS scores (β = 0.17; 95% confidence interval = 0.11, 0.23; p < 0.001). Conclusions: These findings suggest that family caregiving to patients with stroke might be associated with post-stroke functional recovery within the period from discharge to home until three months after stroke onset.

Racial and ethnic differences in access to care and treatment in patients with suspected acute stroke: A retrospective, observational, cohort study

BACKGROUND

Data regarding unequal diagnostic and therapeutic access in patients with acute stroke based on ethnicity and race are inconclusive in Europeans. The objectives of our study were to evaluate the effect of race/ethnicity on access to acute stroke care and treatments and outcomes.

METHODS

In this retrospective cohort study, we enrolled adult patients admitted to the emergency department of a comprehensive stroke center for suspected stroke. Based on race/ethnicity, patients were divided into two main groups: Western European Whites (WEW) and non-Western European Whites (nWEW). We also divided the nWEW group into four subgroups based on the Office of Management and Budget classification of human races and ethnicities (White-Others, Hispanic, Asian, Black). Univariate comparisons and logistic regression analyses were also performed.

RESULTS

9167 patients were enrolled in the study: 582 in the nWEW and 8585 in the WEW group. Patients with ischemic stroke in the nWEW group were significantly younger than those in the other group (p < 0.001). Once adjusted for possible confounders, belonging to the nWEW group was found to be an independent predictor of a lower likelihood of receiving revascularization treatments (p = 0.006), regardless similar onset-to-door times. There were no differences in stroke outcomes and prevalence of stroke mimic diagnosis between the groups.

CONCLUSIONS

Racial/ethnic disparities in healthcare represent a challenging issue, even in universal healthcare systems, that should be addressed promptly through education campaigns of healthcare personnel and implementation measures, such as integrating readily available interpreter staff for medical emergencies.

Effects of Social Determinants of Health on Acute Stroke Care Among Patients With Acute Ischemic Stroke: A Retrospective Cohort Study

BACKGROUND AND OBJECTIVES

Social determinants of health (SDOH) are important contributors to poor stroke-related outcomes. While some have suggested that this association is driven by the increased incidence of stroke observed with poor SDOH, others have raised concerns regarding disparities in acute stroke care. This study aimed to determine the association between SDOH and the administration of thrombolytic therapy and mechanical thrombectomy among patients with acute ischemic stroke.

METHODS

A retrospective cohort analysis was conducted using Texas Emergency Department Public Use Data (2016-2019), including adult patients diagnosed with acute ischemic stroke. The risk ratios (RRs) of administering thrombolysis and thrombectomy based on variables representing SDOH and a collective measure (Social Vulnerability Index [SVI]) were computed using mixed-effects Poisson regression models accounting for the nested nature of patients in hospitals and neighborhoods. The Charlson comorbidity score was considered as a covariate.

RESULTS

Of the 139,852 patients with ischemic stroke (female, 51.7%; White, 67.2%; Black, 16.6%; Hispanic, 25.1%), 16,831 (12.3%) received thrombolytic therapy and 5,951 (4.3%) received mechanical thrombectomy. Age older than 65 years (RR 0.578 [0.537-0.621]) vs 18-45 years, Black (RR 0.801 [0.761-0.844]) vs White, Hispanic (RR 0.936 [0.895-0.98]) vs non-Hispanic, Medicare/Medicaid/Veterans Affairs (VA) (RR 0.917 [0.882-0.954]) or uninsured (RR 0.883 [0.833-0.935]) vs private insurance, and rural (RR 0.782 [0.723-0.845]) vs urban dwelling were less likely to be associated with thrombolysis. Patients in the highest quintile based on the SVI were less likely to receive thrombolysis than those in the lowest quintile (RR 0.926 [0.867-0.989]). Patients were less likely to receive thrombectomy if they were 65 years and older (RR 0.787 [0.691-0.895]), belonged to the Black race (RR 0.745 [0.679-0.818]) or Hispanic ethnicity (RR 0.919 [0.851-0.992]), had Medicare/Medicaid/VA insurance (RR 0.909 [0.851-0.971]), or were from a rural area (RR 0.909 [0.851-0.971]). Similarly, SVI decreased the likelihood of undergoing mechanical thrombectomy (RR 0.842 [0.747-0.95]).

DISCUSSION

Despite many improvements in stroke management, SDOH continue to be a significant driver of treatment access for acute ischemic stroke. While our findings are limited to Texas, our results should raise awareness and promote more studies regarding the effects of these SDOH at the national and international levels.

Possible sex and racial disparities in myasthenia gravis care

INTRODUCTION/AIMS

Given the importance of early diagnosis and treatment of myasthenia gravis (MG), it is critical to understand disparities in MG care. We aimed to determine if there are any differences in testing, treatment, and/or access to neurologists for patients of varying sex and race/ethnicity with MG.

METHODS

We used a nationally representative healthcare claims database of privately insured individuals (2001-2018) to identify incident cases of MG using a validated definition. Diagnostic testing, steroid-sparing agents, intravenous immunoglobulin (IVIG), plasma exchange (PLEX), and thymectomy were defined using drug names or CPT codes. Steroid use was defined using AHFS class codes. We also determined whether an individual had a visit to a neurologist and the time between primary care and neurologist visits. Logistic regression determined associations between sex and race/ethnicity and testing, treatments, and access to neurologists.

RESULTS

Female patients were less likely to get a computed tomography (CT) chest (odds ratio (OR) 0.73, 95% confidence interval (CI): 0.64-0.83), receive steroids (OR: 0.85, 95% CI: 0.75-0.97), steroid-sparing agents (OR: 0.84, 95% CI: 0.72-0.97), and IVIG or PLEX (OR: 0.80, 95% CI: 0.67-0.95). Black patients were less likely to receive steroids (OR: 0.78, 95% CI: 0.63-0.96). No significant disparities were seen in access to neurologists.

DISCUSSION

We found healthcare disparities in MG treatment with female and Black patients receiving less treatment than men and those of other races/ethnicities. Further research and detailed assessments accounting for individual patient factors are needed to confirm these apparent disparities.

Stroke prevention education in African Americans: Lessons learned from a community based participatory feasibility study

PURPOSE

To present information on the feasibility and acceptability of a Stroke Champion "train-the-trainer" program, including lessons learned, for dissemination of stroke prevention knowledge and resources among African Americans (AA) residing within the Minneapolis-St. Paul, MN metropolitan area.

DESIGN

One arm pre-post-test design.

METHODS

Twelve AA "Stroke Champions" were recruited to assess the feasibility and acceptability of an online stroke prevention education curriculum and peer-to-peer education.

RESULTS

We successfully designed, developed, and implemented a stroke prevention education website for community use. All Stroke Champions completed initial training and evaluation, and reported the usefulness and usability of the website., However, they also reported that they needed more facilitation support from our research team to deliver education in the community.

CONCLUSION

Engaging Stroke Champions is potentially beneficial in increasing stroke prevention knowledge. However, Stroke Champions need more support to effectively engage, educate, and disseminate knowledge among peers.

Provider care segregation and hospital-region racial disparities for carotid interventions in the USA

BACKGROUND

Reasons for racial disparities in the utilization and outcomes of carotid interventions (carotid endarterectomy (CEA) and carotid artery stenting (CAS)) are not well understood, especially segregation of care associated with carotid intervention. We examined patterns of geographic and provider care segregation in carotid interventions and outcomes.

METHOD

We used de-identified Medicare datasets to identify CEA and CAS interventions between January 1, 2016 and December 31, 2019 using validated ICD-10 codes. For patients who underwent carotid intervention, we calculated (1) the proportion of White patients at the hospital, (2) the proportional difference in the proportion of White patients between hospital patients and the county, and (3) provider care segregation by the dissimilarity index for carotid intervention cases. We examined associations between measures of segregation and outcomes.

RESULTS

Despite higher proportions of Black patients in counties with hospitals that provide carotid intervention, lower proportions of Black patients received intervention. The difference in the proportion of White patients comparing CEA patients to the county race distribution was 0.143 (SD 0.297) at the hospital level (for CAS, 0.174 (0.315)). The dissimilarity index for CEA providers was high, with mean (SD) 0.387 (0.274) averaged across all hospitals and higher among CAS providers at 0.472 (0.288). Black patients receiving CEA and CAS (compared with Whites) had reduced odds of discharge home. Better outcomes (inpatient mortality and 30-day mortality) were independently associated with higher proportion of White CAS patients.

CONCLUSION

In this national study with contemporary data on carotid intervention, we found evidence for segregation of care of both CEA and CAS.

Stem cell therapy: a new hope for stroke and traumatic brain injury recovery and the challenge for rural minorities in South Carolina

Stroke and traumatic brain injury (TBI) are a significant cause of death and disability nationwide. Both are considered public health concerns in rural communities in the state of South Carolina (SC), particularly affecting the African American population resulting in considerable morbidity, mortality, and economic burden. Stem cell therapy (SCT) has emerged as a potential intervention for both diseases with increasing research trials showing promising results. In this perspective article, the authors aim to discuss the current research in the field of SCT, the results of early phase trials, and the utilization of outcome measures and biomarkers of recovery. We searched PubMed from inception to December 2023 for articles on stem cell therapy in stroke and traumatic brain injury and its impact on rural communities, particularly in SC. Early phase trials of SCT in Stroke and Traumatic Brain injury yield promising safety profile and efficacy results, but the findings have not yet been consistently replicated. Early trials using mesenchymal stem cells for stroke survivors showed safety, feasibility, and improved functional outcomes using broad and domain-specific outcome measures. Neuroimaging markers of recovery such as Functional Magnetic Resonance Imaging (fMRI) and electroencephalography (EEG) combined with neuromodulation, although not widely used in SCT research, could represent a breakthrough when evaluating brain injury and its functional consequences. This article highlights the role of SCT as a promising intervention while addressing the underlying social determinants of health that affect therapeutic outcomes in relation to rural communities such as SC. It also addresses the challenges ethical concerns of stem cell sourcing, the high cost of autologous cell therapies, and the technical difficulties in ensuring transplanted cell survival and strategies to overcome barriers to clinical trial enrollment such as the ethical concerns of stem cell sourcing, the high cost of autologous cell therapies, and the technical difficulties in ensuring transplanted cell survival and equitable healthcare.

Association between the quantity of stroke care units and the complement of neurosurgical and neurology specialists in Japan: A retrospective study

BACKGROUND

Stroke care units provide advanced intensive care for unstable patients with acute stroke. We conducted a survey to clarify the differences in stroke care units between urban and regional cities and the relationship between the number of stroke care unit beds and neurologists.

METHODS

This retrospective observational study was conducted in 2,857 and 4,184 hospitals in urban and regional cities in 47 provinces of Japan, respectively, between January 2020 and August 2023. Tokyo and ordinance-designated cities in provinces were defined as urban cities, and those without such cities were defined as regional cities. The primary endpoint was the presence or absence of a stroke care unit.

RESULTS

Multiple linear regression analysis revealed that the presence of stroke care units was significantly associated with the number of neurosurgical specialists. Receiver operating characteristic curve analysis was performed to predict the number of personnel required for stroke care unit installation based on the number of neurosurgical specialists. The area under the receiver operating characteristic curve, Youden index, sensitivity, and specificity were 0.721, 0.483, 0.783, and 0.700, respectively.

CONCLUSIONS

Our study underscores the indispensability of SCUs in stroke treatment, advocating for a strategic allocation of medical resources, heightened accessibility to neurosurgical specialists, and a concerted effort to address geographic and resource imbalances. The identified cutoff value of 8.99 neurosurgical specialists per 100,000 population serves as a practical benchmark for optimizing SCU establishment, thereby potentially mitigating stroke-related mortality.

Race-ethnicity, age, and heart failure in ischemic stroke

OBJECTIVES

Race-ethnic disparities contribute to cardiovascular morbidity. Heart failure (HF) is highly prevalent in acute ischemic stroke (AIS) and associated with worse outcomes. We hypothesized race-ethnic differences exist in the prevalence of HF among patients with AIS, particularly in younger patients, and in a manner not fully explained by cardiovascular profiles.

METHODS

Patients with AIS in the National Inpatient Sample (2016-2019) were categorized as young (<50 years), middle (50-64) and older (≥65) age. Interaction between age and race-ethnicity on the presence of comorbid HF was examined, adjusting for vascular risk factors. Effect modification on in-hospital mortality and prolonged hospitalization across race-ethnic groups and age was also examined.

RESULTS

Of 398,470 AIS patients, 16.2 % had HF. HF patients were older (73.7 vs. 69.5 years, P < 0.001), had a lower proportion of White, Hispanic and Asian/PI individuals but a larger proportion of patients of Black race (21.0 vs. 16.4 %, P < 0.001). Race-ethnicity modified the relationship between HF and age (Pinteraction < 0.001). Stroke patients of Black race had the greatest odds of having HF across all age groups, however differences between Black and White patients were most pronounced in young adults (OR: 2.08, 95 % CI: 1.91-2.27) after adjusting for vascular risk factors. Among patients with HF, Black race was associated with reduced risk of in-hospital mortality but greater likelihood of prolonged hospitalization at middle and older age.

CONCLUSION

HF is highly prevalent in stroke patients of Black race, particularly in younger cohorts, and in a manner not fully explained by cardiovascular profiles.

Self-Management among Stroke Survivors in the United States, 2016 to 2021

Background: Self-management among stroke survivors is effective in mitigating the risk of a recurrent stroke. This study aims to determine the prevalence of self-management and its associated factors among stroke survivors in the United States. Methods: We analyzed the Behavioral Risk Factor Surveillance System (BRFSS) data from 2016 to 2021, a nationally representative health survey. A new outcome variable, stroke self-management (SSM = low or SSM = high), was defined based on five AHA guideline-recommended self-management practices, including regular physical activity, maintaining body mass index, regular doctor checkups, smoking cessation, and limiting alcohol consumption. A low level of self-management was defined as adherence to three or fewer practices. Results: Among 95,645 American stroke survivors, 46.7% have low self-management. Stroke survivors aged less than 65 are less likely to self-manage (low SSM: 56.8% vs. 42.3%; p < 0.0001). Blacks are less likely to self-manage than non-Hispanic Whites (low SSM: 52.0% vs. 48.6%; p < 0.0001); however, when adjusted for demographic and clinical factors, the difference was dissipated. Higher education and income levels are associated with better self-management (OR: 2.49, [95%CI: 2.16-2.88] and OR: 1.45, [95%CI: 1.26-1.67], respectively). Further sub-analysis revealed that women are less likely to be physically active (OR: 0.88, [95%CI: 0.81-0.95]) but more likely to manage their alcohol consumption (OR: 1.57, [95%CI: 1.29-1.92]). Stroke survivors residing in the Stroke Belt did not self-manage as well as their counterparts (low-SSM: 53.1% vs. 48.0%; p < 0.001). Conclusions: The substantial diversity in self-management practices emphasizes the need for tailored interventions. Particularly, multi-modal interventions should be targeted toward specific populations, including younger stroke survivors with lower education and income.

Provision of Stroke Care Services by Community Disadvantage Status in the US, 2009-2022

Importance

Stroke center certification is granted to facilities that demonstrate distinct capabilities for treating patients with stroke. A thorough understanding of structural discrimination in the provision of stroke centers is critical for identifying and implementing effective interventions to improve health inequities for socioeconomically disadvantaged populations.

Objective

To determine whether (1) hospitals in socioeconomically disadvantaged communities (defined using the Area Deprivation Index) are less likely to adopt any stroke certification and (2) adoption rates differ between entry-level (acute stroke-ready hospitals) and higher-level certifications (primary, thrombectomy capable, and comprehensive) by community disadvantage status.

Design, Setting, and Participants

This cohort study used newly collected stroke center data merged with data from the American Hospital Association, Healthcare Cost Report Information datasets, and the US Census. All general acute hospitals in the continental US between January 1, 2009, and December 31, 2022, were included. Data analysis was conducted from July 2023 to May 2024.

Main Outcomes and Measures

The primary outcome was the likelihood of hospitals adopting stroke care certification. Cox proportional hazard and competing risk models were used to estimate the likelihood of a hospital becoming stroke certified based on the socioeconomic disadvantage status of the community.

Results

Among the 5055 hospitals studied from 2009 to 2022, 2415 (47.8%) never achieved stroke certification, 602 (11.9%) were certified as acute stroke-ready hospitals, and 2038 (40.3%) were certified as primary stroke centers or higher. When compared with mixed-advantage communities, adoption of any stroke certification was most likely to occur near the most advantaged communities (hazard ratio [HR], 1.24; 95% CI, 1.07-1.44) and least likely near the most disadvantaged communities (HR, 0.43; 95% CI, 0.34-0.55). Adoption of acute stroke-ready certification was most likely in mixed-advantage communities, while adoption of higher-level certification was more likely in the most advantaged communities (HR,1.41; 95% CI, 1.22-1.62) and less likely for the most disadvantaged communities (HR, 0.31; 95% CI, 0.21-0.45). After adjusting for population size and hospital capacity, compared with mixed-advantage communities, stroke certification adoption hazard was still 20% lower for relatively disadvantaged communities (adjusted HR, 0.80; 95% CI, 0.73-0.87) and 42% lower for the most disadvantaged communities (adjusted HR, 0.58; 95% CI, 0.45-0.74).

Conclusions and Relevance

In this cohort study examining hospital adoption of stroke services, when compared with mixed-advantage communities, hospitals located in the most disadvantaged communities had a 42% lower hazard of adopting any stroke certification and relatively disadvantaged communities had a 20% lower hazard of adopting any stroke certification. These findings suggest that there is a need to support hospitals in disadvantaged communities to obtain stroke certification as a way to reduce stroke disparities.

Emerging Roles of Exosomes in Stroke Therapy

Stroke is the number one cause of morbidity in the United States and number two cause of death worldwide. There is a critical unmet medical need for more effective treatments of ischemic stroke, and this need is increasing with the shift in demographics to an older population. Recently, several studies have reported the therapeutic potential of stem cell-derived exosomes as new candidates for cell-free treatment in stoke. This review focuses on the use of stem cell-derived exosomes as a potential treatment tool for stroke patients. Therapy using exosomes can have a clear clinical advantage over stem cell transplantation in terms of safety, cost, and convenience, as well as reducing bench-to-bed latency due to fewer regulatory milestones. In this review article, we focus on (1) the therapeutic potential of exosomes in stroke treatment, (2) the optimization process of upstream and downstream production, and (3) preclinical application in a stroke animal model. Finally, we discuss the limitations and challenges faced by exosome therapy in future clinical applications.

Mapping the Ecological Terrain of Stroke Prehospital Delay: A Nationwide Registry Study

BACKGROUND

Delays in hospital presentation limit access to acute stroke treatments. While prior research has focused on patient-level factors, broader ecological and social determinants have not been well studied. We aimed to create a geospatial map of prehospital delay and examine the role of community-level social vulnerability.

METHODS

We studied patients with ischemic stroke who arrived by emergency medical services in 2015 to 2017 from the American Heart Association Get With The Guidelines-Stroke registry. The primary outcome was time to hospital arrival after stroke (in minutes), beginning at last known well in most cases. Using Geographic Information System mapping, we displayed the geography of delay. We then used Cox proportional hazard models to study the relationship between community-level factors and arrival time (adjusted hazard ratios [aHR] <1.0 indicate delay). The primary exposure was the social vulnerability index (SVI), a metric of social vulnerability for every ZIP Code Tabulation Area ranging from 0.0 to 1.0.

RESULTS

Of 750 336 patients, 149 145 met inclusion criteria. The mean age was 73 years, and 51% were female. The median time to hospital arrival was 140 minutes (Q1: 60 minutes, Q3: 458 minutes). The geospatial map revealed that many zones of delay overlapped with socially vulnerable areas (https://harvard-cga.maps.arcgis.com/apps/webappviewer/index.html?id=08f6e885c71b457f83cefc71013bcaa7). Cox models (aHR, 95% CI) confirmed that higher SVI, including quartiles 3 (aHR, 0.96 [95% CI, 0.93-0.98]) and 4 (aHR, 0.93 [95% CI, 0.91-0.95]), was associated with delay. Patients from SVI quartile 4 neighborhoods arrived 15.6 minutes [15-16.2] slower than patients from SVI quartile 1. Specific SVI themes associated with delay were a community's socioeconomic status (aHR, 0.80 [95% CI, 0.74-0.85]) and housing type and transportation (aHR, 0.89 [95% CI, 0.84-0.94]).

CONCLUSIONS

This map of acute stroke presentation times shows areas with a high incidence of delay. Increased social vulnerability characterizes these areas. Such places should be systematically targeted to improve population-level stroke presentation times.

Exploring the Inclusion of Person-Centered Care Domains in Stroke Transitions of Care Interventions: A Scientific Statement From the American Heart Association

BACKGROUND

Health care teams along the stroke recovery continuum have a responsibility to support care transitions and return to the community. Ideally, individualized care will consider patient and family preferences, best available evidence, and health care professional input. Person-centered care can improve patient-practitioner interactions through shared decision-making in which health professionals and institutions are sensitive to those for whom they provide care. However, it is unclear how the concepts of person-centered care have been described in reports of stroke transitional care interventions.

METHODS

A secondary analysis of a systematic review and meta-analysis was undertaken. We retrieved all included articles (n=17) and evaluated the extent to which each intervention explicitly addressed 7 domains of person-centered care: alignment of care with patients' values, preferences, and needs; coordination of care; information and education; physical comfort; emotional support; family and friend involvement; and smooth transition and continuity of care.

RESULTS

Most of the articles included some aspects of person-centeredness; we found that certain domains were not addressed in the descriptions of transitional care interventions, and no articles mentioned all 7 domains of person-centered care. We identified 3 implications for practice and research: (1) delineating person-centered care components when reporting interventions, (2) elucidating social and cultural factors relevant to the study sample and intervention, and (3) clearly describing the role of family and nonmedical support in the intervention.

CONCLUSIONS

There is still room for greater consistency in the reporting of person-centeredness in stroke transitions of care interventions, despite a long-standing definition and conceptualization of person-centered care in academic and clinically focused literature.

Arrhythmias and ion channelopathies causing sudden cardiac death in Hispanic/Latino and Indigenous populations

The limited literature and increasing interest in studies on cardiac electrophysiology, explicitly focusing on cardiac ion channelopathies and sudden cardiac death in diverse populations, has prompted a comprehensive examination of existing research. Our review specifically targets Hispanic/Latino and Indigenous populations, which are often underrepresented in healthcare studies. This review encompasses investigations into genetic variants, epidemiology, etiologies, and clinical risk factors associated with arrhythmias in these demographic groups. The review explores the Hispanic paradox, a phenomenon linking healthcare outcomes to socioeconomic factors within Hispanic communities in the United States. Furthermore, it discusses studies exemplifying this observation in the context of arrhythmias and ion channelopathies in Hispanic populations. Current research also sheds light on disparities in overall healthcare quality in Indigenous populations. The available yet limited literature underscores the pressing need for more extensive and comprehensive research on cardiac ion channelopathies in Hispanic/Latino and Indigenous populations. Specifically, additional studies are essential to fully characterize pathogenic genetic variants, identify population-specific risk factors, and address health disparities to enhance the detection, prevention, and management of arrhythmias and sudden cardiac death in these demographic groups.

Exploring the experiences of adults with stroke in virtual community-based stroke programs: a qualitative descriptive study

BACKGROUND

Stroke is among the top contributors to disability and can impact an individual's cognition, physical functioning, and mental health. Since the COVID-19 pandemic, several community-based organizations have started delivering stroke programs virtually. However, participants' experiences in these programs remain understudied, and evidence-based guidelines to inform and optimize virtual stroke program development and delivery are lacking. Thus, this study aimed to describe the perspectives and experiences of individuals with stroke who participated in virtual community-based organization stroke programs, including perceived access and participation facilitators and barriers and suggestions for improving these programs.

METHODS

A qualitative descriptive design was used to gather participant experiences through semi-structured interviews. Audio-recorded interviews were conducted on Zoom and transcribed verbatim. Adult participants who had experienced a stroke and attended at least one Canadian virtual community-based organization stroke program were recruited. Data were analyzed using inductive thematic analysis.

RESULTS

Twelve participants (32-69 years, 2-23 years post-stroke, eight women and four men) participated in this study. Five themes were identified: (1) motives to join virtual community-based organization stroke programs, including gaining peer connections, knowledge and information; (2) perceived barriers to accessing and participating in virtual community-based organization stroke programs, including technology inequities, difficulties navigating technology, and inadequate facilitation; (3) perceived facilitators to accessing and participating in virtual community-based organization stroke programs, including remote access, virtual platform features and program leader characteristics/skills; (4) unmet needs during virtual community-based organization stroke programs, including in-person connection and individualized support; and (5) suggestions and preferences for improving virtual community-based organization stroke programs, including program facilitation, content and format.

CONCLUSIONS

Study findings highlight opportunities to improve virtual community-based organization stroke programs to optimize participant experiences and outcomes. Addressing the barriers and suggestions identified in this study may improve virtual community-based organization stroke programs' access and quality.

Risk of Recurrent Stroke and Mortality Among Black and White Patients With Poststroke Depression

BACKGROUND

Poststroke depression (PSD) is a treatable and common complication of stroke that is underdiagnosed and undertreated in minority populations. We compared outcomes of Black and White patients with PSD in the United States to assess whether race is independently associated with the risk of recurrent stroke and mortality.

METHODS

We used deidentified Medicare data from inpatient, outpatient, and subacute nursing facilities for Black and White US patients from January 1, 2016, to December 31, 2019, to perform this retrospective cohort analysis. International Classification of Diseases, Tenth Revision codes were used to identify patients diagnosed with depression within 6 months of index stroke with no depression diagnosis 1-year preceding index stroke. We performed an unadjusted Kaplan-Meier analysis of the cumulative risk of recurrent stroke up to 3 years after index acute ischemic stroke admission and all-cause mortality following acute ischemic stroke stratified by Black and White race. We performed adjusted and reduced Cox regression to calculate hazard ratios for the main predictor of race (Black versus White), for recurrent stroke and all-cause mortality, adjusting for sociodemographic characteristics, comorbidities, characteristics of the hospitalization, and acute stroke interventions.

RESULTS

Of 474 770 Medicare patients admitted with acute index stroke, 443 486 were categorized as either Black or White race and 35 604 fulfilled our criteria for PSD. Within the PSD cohort, 25 451 (71.5%) had no death or recurrent stroke within 6 months and 5592 (15.7%) had no death or readmission of any cause within 6 months. Black patients with PSD had a persistently elevated cumulative risk of recurrent stroke compared with White patients with PSD up to 3 years following acute ischemic stroke (log-rank P=0.0011). In our reduced multivariable model, Black patients had a 19.8% (hazard ratio, 1.198 [95% CI, 1.022-1.405]; P=0.0259) greater risk of recurrent stroke than White patients. The unadjusted cumulative risk of all-cause mortality was higher in this cohort of older White patients with PSD compared with Black patients; however, this difference disappeared with adjustment for age and other cofactors.

CONCLUSIONS

Black patients with PSD face a persistently elevated risk of recurrent stroke compared with White patients but a similar risk of all-cause mortality. Our findings support that black race is an independent predictor of recurrent stroke in patients with PSD and highlight the need to address social determinants of health and systemic racism that impact poststroke outcomes among racial minorities.

Health Care Disparities in Stroke Rehabilitation

Stroke outcomes are influenced by factors such as education, lifestyle, and access to care, which determine the extent of functional recovery. Disparities in stroke rehabilitation research have traditionally included age, race/ethnicity, and sex, but other areas make up a gap in the literature. This article conducted a literature review of original research articles published between 2008 and 2022. The article also expands on research that highlights stroke disparities in risk factors, rehabilitative stroke care, language barriers, outcomes for stroke survivors, and interventions focused on rehabilitative stroke disparities.

A systematic review of the epidemiology and the public health implications of stroke in Sub-Saharan Africa

BACKGROUND

With approximately 11 million strokes occurring annually worldwide, and over 6.5 million deaths annually, stroke has made its place as one of the major killers in the world. Although developing countries make up more than 4/5 of the global stroke burden, well-grounded information on stroke epidemiology remains lacking there.

AIMS

This systematic review study aimed to provide a synthesis of studies on the incidence and prevalence of stroke among adults in sub-Saharan Africa (SSA), subsequently deduce the associated risk factors and public health implications (mortality rates and economic costs) of the disease on the population of this region.

METHODS

A systematic review of studies carried out in the region and published on PUBMED. Eligibility criteria were established using the PEO (Population/Patient, Exposure, Outcome) format. Research articles investigating either (or all) of the following: ischemic or haemorrhagic stroke, incidence, prevalence, and risk factors of stroke in adults (≥ 18 years old), in at least one region of SSA were included. Exclusion criteria comprised studies involving populations younger than 18 years old, research conducted outside the designated research region, and articles inaccessible in full text. The PRISMA guidelines were used for the search strategy.

RESULTS

Fifty-two studies were included review. Among them, over 11 studies investigated the prevalence of the disease. Some older studies within the continent (Nigeria, 2011) showed a prevalence of 1.3 per 100 while more recent studies (Zambia, 2021) showed a prevalence of 4.3 per 1000. The highest prevalence noted in this region was in Madagascar (2017) with 48.17 per 100, while the lowest was recorded in (Zimbabwe, 2017) with 0.61 per 100. The study in Tanzania showed a crude incidence of 94·5 per 100 000 (76·0-115·0) while the study in Ghana in 2018 showed an incidence of 14.19 events per 1000 person-years [10.77-18.38]. The identified risk factors included hypertension, diabetes, smoking, alcohol consumption, physical inactivity, poor diets (more salt, less vegetables), dyslipidaemia, HIV/AIDS co-infection, heart disease (cardiomyopathies, cardiac arrhythmias), obesity, previous stroke and/or family history of stroke. Over 21 studies investigated the mortality rates due to stroke in SSA, with most of the studies being in West Africa. These studies revealed mortality rates as high as 43.3% in Ghana, and as low as 10.9% in Cameroon. Few studies reported on the economic costs of stroke in the region; two in Benin, two in Nigeria and one in Tanzania.

CONCLUSION

The increasing incidence/prevalence, lifestyle factors and interactions with other diseases, including major communicable diseases, stroke is becoming a pressing public health problem for SSA. Reducing the incidence of stroke in Africa will surely lower mortality, morbidity, disability, and the neurological as well as cognitive aftereffects of stroke, as is clear from the experience of higher-income nations. We recommend a collective intervention involving the governments of nations, international organizations, civil society, and the private sector for greater impact and sustainable outcomes reducing the epidemiology and implications of stroke in SSA.

Differences in Receipt of Neurologist Evaluation During Hospitalization for Ischemic Stroke by Race, Sex, Age, and Region: The REGARDS Study

BACKGROUND AND OBJECTIVES

Improving access to health care providers with clinical expertise in stroke care may influence the use of recommended strategies for reducing disparities in quality of care. Few studies have examined differences in the receipt of evaluation by neurologists during the hospital stay. We examined the proportion of individuals hospitalized for acute ischemic stroke who received evaluation by a neurologist during the hospital stay and characterized differences in receipt of neurologist evaluation by race (Black vs White), sex, age, and study region (Stroke Belt residence vs other) among those experiencing a stroke who were participating in a national cohort study.

METHODS

This cross-sectional study was conducted using medical record data abstracted from 1,042 participants enrolled in the national Reasons for Geographic and Racial Differences in Stroke cohort study (2003-2007) who experienced an adjudicated ischemic stroke between 2003 and 2016. Participants with a history of stroke before baseline, in-hospital death, hospice discharge following their stroke, or incomplete records were excluded resulting in 839 cases. Differences were assessed using modified Poisson regression adjusting for participant-level and hospital-level factors.

RESULTS

Of the 839 incident strokes, 722 (86%) received evaluation by a neurologist during the hospital stay. There were no significant differences by age, race, or sex, yet Stroke Belt residents and those receiving care in rural hospitals were significantly less likely to receive neurologist evaluation compared with non-Stroke Belt residents (relative risk [RR] 0.95; 95% CI 0.90-1.01) and participants receiving care in urban hospitals (RR 0.74; 95% CI 0.63-0.86). Participants with a greater level of poststroke functional impairment (modified Rankin scale) and those with a greater number of risk factors were more likely to receive neurologist evaluation compared with those with lower levels of poststroke functional impairment (RR 1.04; 95% CI 1.01-1.06) and fewer risk factors (RR 1.02; 95% CI 1.00-1.04).

DISCUSSION

While differences in access to neurologists during the hospital stay were partially explained by patient need in our study, there were also significant differences in access by region and urban-rural hospital status. Ensuring access to neurologists during the hospital stay in such settings may require policy-level and/or system-level changes.

Post stroke pain: Is there under-diagnosis in Black versus White patients?

Stroke incidence is higher and stroke outcomes are poorer in Black patients compared to White patients. Poststroke pain, however, is not a well understood stroke outcome. Using the National Institutes of Health All of Us Research Program database, we hypothesized that the dataset would demonstrate proportionately higher relative risk of poststroke pain in the Black poststroke patient population compared to the White poststroke patient population. However, our analysis showed that Black stroke patients were diagnosed with poststroke pain at a similar rate as White stroke patients. As our results are not consistent with other poststroke outcomes in the literature, this study identifies a potentially underdiagnosed patient population, highlighting the need for further research.

Sex-specific racial and ethnic variations in short-term outcomes among patients with first or recurrent ischemic stroke: Paul Coverdell National Acute Stroke Program, 2016-2020

BACKGROUND AND PURPOSE

To understand the association of sex-specific race and ethnicity on the short-term outcomes of initial and recurrent ischemic stroke events.

METHODS

Using the Paul Coverdell National Acute Stroke Program from 2016-2020, we examined 426,062 ischemic stroke admissions from 629 hospitals limited to non-Hispanic White (NHW), non-Hispanic Black (NHB), and Hispanic patients. We performed multivariate logistic regression analyses to assess the combined effects of sex-specific race and ethnicity on short-term outcomes for acute ischemic stroke patients presenting with initial or recurrent stroke events. Outcomes assessed include rates of in-hospital death, discharge to home, and symptomatic intracranial hemorrhage (sICH) after reperfusion treatment.

RESULTS

Among studied patients, the likelihood of developing sICH after reperfusion treatment for initial ischemic stroke was not significantly different. The likelihood of experiencing in-hospital death among patients presenting with initial stroke was notably higher among NHW males (AOR 1.59 [95 % CI 1.46, 1.73]), NHW females (AOR 1.34 [95 % CI 1.23, 1.45]), and Hispanic males (AOR 1.57 [95 % CI 1.36, 1.81]) when compared to NHB females. Hispanic females were more likely to be discharged home when compared to NHB females after initial stroke event (AOR 1.32 [95 % CI 1.23, 1.41]). NHB males (AOR 0.90 [95 % CI 0.87, 0.94]) and NHW females (AOR 0.89 [95 % CI 0.86, 0.92]) were less likely to be discharged to home. All groups with recurrent ischemic strokes experienced higher likelihood of in-hospital death when compared to NHB females with the highest likelihood among NHW males (AOR 2.13 [95 % CI 1.87, 2.43]). Hispanic females had a higher likelihood of discharging home when compared to NHB females hospitalized for recurrent ischemic stroke, while NHB males and NHW females with recurrent ischemic stroke hospitalizations were less likely to discharge home.

CONCLUSIONS

Sex-specific race and ethnic disparities remain for short-term outcomes in both initial and recurrent ischemic stroke hospitalizations. Further studies are needed to address disparities among recurrent ischemic stroke hospitalizations.

Gastric cancer in Sub-Saharan Africa - a systematic review of primary data

Introduction

Gastric cancer (GC) is the third leading cause of global cancer-related mortality. Despite the shifting burden of GC to low-and middle-income countries, the data regarding incidence, treatment, and outcomes in these settings are sparse. The primary aim of this systematic review was to aggregate all available data on GC in sub-Saharan Africa (SSA) to describe the variability in incidence across the region.

Methods

Studies reporting population-based primary data on GC in SSA were considered. The inclusion was limited to primary studies published between January 1995 and March 2022 which comprised of adult patients in SSA with GC. Studies without accessible full text in either French or English language were excluded. Unadjusted GC incidence rates with their standard errors for each study were recalculated from the crude numerators and denominators provided in individual studies.

Results

A total of 5,626 articles were identified in the initial search, of which, 69 studies were retained. Reported incidence rates ranged from a high of 5.56 GC cases per 100,000 in Greater Meru Kenya to a low of 0.04 GC cases per 100,000 people in Benin City Nigeria. The overall crude pooled incidence was 1.20 GC cases per 100, 000 (95%CI 1.15-1.26) with a variability of 99.83% (I2 p < 0.001). From the 29 high-quality population-based registry studies the crude pooled incidence was 1.71 GC cases per 100,000 people (95%CI 1.56-21.88) with a variability of 99.60%.

Conclusion

This systemic review demonstrates that GC incidence is highly variable across SSA. The limited data on GC treatment, mortality, and survival presents a significant challenge to providing a complete epidemiologic description of the burden of GC in SSA. There is a need for further robust data collection, exploration, and research studies on cancer care in SSA, with continued assessment of primary data availability.

Racial and Ethnic Disparities in the Medical Management of Poststroke Complications Among Patients With Acute Stroke

BACKGROUND

To inform clinical practice, we sought to identify racial and ethnic differences in the medical management of common poststroke complications.

METHODS AND RESULTS

A cohort of acutely hospitalized, first-time non-Hispanic White (NHW), non-Hispanic Black, and Hispanic patients with stroke was identified from electronic medical records of 51 large health care organizations (January 1, 2003 to December 5, 2022). Matched propensity scores were used to account for baseline differences. Primary outcomes included receipt of medication(s) associated with the management of the following poststroke complications: arousal/fatigue, spasticity, mood, sleep, neurogenic bladder, neurogenic bowel, and seizure. Differences were measured at 14, 90, and 365 days. Subgroup analyses included differences restricted to patients with ischemic stroke, younger age (<65 years), and stratified by decade (2003-2012 and 2013-2022). Before matching, the final cohort consisted of 348 286 patients with first-time stroke. Matching resulted in 63 722 non-Hispanic Black-NHW pairs and 24 009 Hispanic-NHW pairs. Non-Hispanic Black (versus NHW) patients were significantly less likely to be treated for all poststroke complications, with differences largest for arousal/fatigue (relative risk (RR), 0.58 [95% CI, 0.54-0.62]), spasticity (RR, 0.64 [95% CI, 0.0.62-0.67]), and mood disorders (RR, 0.72 [95% CI, 0.70-0.74]) at 14 days. Hispanic-NHW differences were similar, albeit with smaller magnitudes, with the largest differences present for spasticity (RR, 0.67 [95% CI, 0.63-0.72]), arousal/fatigue (RR, 0.77 [95% CI, 0.70-0.85]), and mood disorders (RR, 0.79 [95% CI, 0.77-0.82]). Subgroup analyses revealed similar patterns for ischemic stroke and patients aged <65 years. Disparities for the current decade remained significant but with smaller magnitudes compared with the prior decade.

CONCLUSIONS

There are significant racial and ethnic disparities in the treatment of poststroke complications. The differences were greatest at 14 days, outlining the importance of early identification and management.

Racial disparities in stroke incidence in the Women's Health Initiative: Exploring biological, behavioral, psychosocial, and social risk factors

Background

- Disparities in incident stroke risk among women by race and ethnicity persist. Few studies report the distribution and association of stroke risk factors by age group among a diverse sample of women.

Methods

- Data from the Women's Health Initiative (WHI) Observational Study collected between 1993 and 2010 were used to calculate cumulative stroke incidence and incidence rates among non-Hispanic African American (NHAA), non-Hispanic white (NHW), and Hispanic white or African American (HWAA) women by age group in participants aged ≥50 years at baseline (N = 77,247). Hazard ratios (HRs) and 95% CIs for biological, behavioral, psychosocial, and socioeconomic factors overall and by race or ethnicity were estimated using sequential Cox proportional hazard regression models.

Results

- Average follow-up time was 11.52 (SD, 3.48) years. The incident stroke rate was higher among NHAA (306 per 100,000 person-years) compared to NHW (279/100,000py) and HWAA women (147/100,000py) overall and in each age group. The disparity was largest at ages >75 years. The association between stroke risk factors (e.g., smoking, BMI, physical activity) and incident stroke varied across race and ethnicity groups. Higher social support was significantly associated with decreased stroke risk overall (HR:0.84, 95% CI, 0.76, 0.93); the degree of protection varied across race and ethnicity groups. Socioeconomic factors did not contribute additional stroke risk beyond risk conferred by traditional and psychosocial factors.

Conclusions

- The distribution and association of stroke risk factors differed between NHAA and NHW women. There is a clear need for stroke prevention strategies that address factors driving racial disparities in stroke risk.

Multidisciplinary Care May Help to Reduce Disparities Associated With Race in Youth With Psychogenic Nonepileptic Seizures

BACKGROUND

Psychogenic nonepileptic seizures (PNES) are a common type of functional neurological disorder in which patients experience seizurelike episodes. Health disparities based on race and socioeconomics, documented in children with epilepsy and adults with PNES, have not been reported in children and adolescents with PNES. We hypothesize that disparities exist in this population, which impact overall care and therefore influence outcomes.

METHODS

We retrospectively analyzed youth referred to our multidisciplinary clinic from 2018 to 2020. All patient charts were screened by social work before the visit to identify potential barriers to care, and a nurse conducted follow-up calls. Patients' race was identified from the electronic health record and compared with several variables. Outcomes were collected via phone follow-up. Descriptive statistics were produced, and comparisons between white patients and patients of other races were completed using Fisher exact tests and multivariable logistic regressions.

RESULTS

During the study period, 237 patients were eligible for the analysis. Sixty-eight patients (29%) identified as a race other than white. Only 60%, 56%, and 40% of the cohort were reached for follow-up at one, three, and 12 months, respectively. In general, outcomes were similar between racial groups; however, we found that patients of nonwhite race were more likely to receive support from social work due to barriers identified in screening (P = 0.045).

CONCLUSIONS

Health disparities based on race may exist in youth with PNES. A multidisciplinary clinic including social work may help mitigate barriers leading to more equitable care and similar outcomes for white and nonwhite youth with PNES.

Provider Care Segregation and Hospital-Region Racial Disparities in the United States for Acute Ischemic Stroke and Endovascular Therapy Outcomes

BACKGROUND

Reasons for racial disparities in the use and outcomes of endovascular treatment (ET) are not known. We examined patterns in care segregation for acute ischemic stroke (AIS) in the United States, and outcomes of segregation of care after ET.

METHODS AND RESULTS

We used deidentified Medicare data sets to identify AIS admissions between January 1, 2016 and December 31, 2019, using validated International Classification of Diseases, Tenth Revision (ICD-10) codes. For AIS, we calculated (1) the proportion of White patients at the hospital, (2) the proportional difference in the proportion of White patients between hospital patients and the county, and (3) provider care segregation by the dissimilarity index for ET cases. Using unadjusted and adjusted multilevel logistic models, we examined associations between measures of segregation and outcomes of discharge home, inpatient mortality, and 30-day mortality. The mean proportional difference in the proportion of White patients comparing hospitalized patients with AIS to the county race distribution was 0.015 (SD, 0.219) at the hospital level. For ET, the mean proportional difference in the proportion of White patients comparing patients receiving ET to the county race distribution was much higher, at 0.146 (SD, 0.374). The dissimilarity index for ET providers was high, with a mean of 0.48 (SD, 0.29) across all hospitals. Black patients with AIS (compared with White patients) had reduced odds of discharge home, inpatient mortality, and 30-day mortality.

CONCLUSIONS

In this national study with contemporary data in the endovascular era of AIS treatment, we found substantial evidence for segregation of care in the United States, not for only AIS in general but also especially for ET.

A retrospective analysis of the social determinants of health affecting stroke outcomes in a small hospital situated in a health professional shortage area (HPSA)

Where someone lives is a major determinant of population health. In the United States, people who live in Health Professional Shortage Areas are considered medically underserved and have a higher propensity for conditions such as stroke, hypertension, and diabetes. Our goal was to better understand the diverse needs of patients presenting to the Crouse Hospital emergency department with stroke symptoms. Crouse Hospital is a small community hospital located in a shortage area serving both urban and rural populations in and around Syracuse, New York. Despite its small size, Crouse Hospital quickly became a major comprehensive stroke center in Central New York. With this study we assessed the social factors affecting the stroke patient population in the community and compared these characteristics between those living in served and underserved areas. Informed by the social determinants of health framework, we analyzed 1731 incidents of stroke that occurred between January 2019 and January 2021, and observed that the circumstances associated with stroke varied by service category and race, with White patients and those from served areas having better stroke outcomes compared to those residing in underserved areas and those that were not White. Our analyses help us to understand the underlying factors influencing the observed disparities and allow us to move forward by implementing informed community-based interventions to decrease stroke incidence and improve post-stroke care. Using our example other small hospitals can enact similar strategies to address the social determinants affecting their patients to improve stroke outcomes in their region.

Association Between Social Determinants of Health and Communication Difficulties in Poststroke U.S. Hispanic and Non-Hispanic White Populations

PURPOSE

The relationship among ethnicity, social determinants of health (SDOH), and disparities in poststroke outcomes is complex, and the impact on communication difficulties is unclear. This study investigated the presence and nature of communication difficulties in poststroke non-Hispanic White (PsnHw) and Hispanic U.S. populations using population-level data.

METHOD

We performed a cross-sectional analysis of 2,861 non-Hispanic White and 353 Hispanic poststroke respondents included in the 2014-2018 National Health Interview Survey. Respondents self-reported difficulties communicating in their usual language, in addition to providing information relating to demographics and lifestyle, health care access and utilization, health status, and SDOH. We used univariate statistics, generalized linear models, and an exploratory mediation analysis, to characterize the pattern of differences between these cohorts, examine associations between variables and communication difficulties, and determine the potential intermediate role of cumulative SDOH on the likelihood of reporting communication difficulties.

RESULTS

Findings indicated a more challenging life context for the poststroke Hispanic population due to SDOH disparities. Poverty and Internet use were associated with greater and lower odds of communication difficulties for PsnHw, respectively. The mediation analysis showed that ethnicity significantly affected communication difficulties, but only when mediated by SDOH. SDOH accounted for approximately two thirds of the total effect on reporting communication difficulties.

CONCLUSIONS

This study underscores the need for uniform measures of SDOH in prospective research and for interventions aimed at mitigating health disparities through addressing disparities in SDOH. Future research should focus on evaluating the effectiveness of such strategies in diverse ethnic and socioeconomic poststroke populations.

SUPPLEMENTAL MATERIAL

https://doi.org/10.23641/asha.24521419.

Gender-Based Disparity in Acute Stroke Imaging Utilization and the Impact on Treatment and Outcomes: 2012 to 2021

INTRODUCTION

Prior studies have revealed significant socio-economic disparities in neuro-imaging and treatment utilization for patients with acute ischemic stroke (AIS). In this study, we sought to evaluate whether a sex-based disparity exists in neuro-imaging and to determine its etiology and association with acute treatment and outcomes.

MATERIALS AND METHODS

This was a retrospective study of consecutive patients with AIS admitted to a comprehensive stroke center between 2012 and 2021. Patient demographic and clinical characteristics, neuro-imaging, acute treatment, and early clinical outcomes were extracted from the electronic medical records. Trend analysis, bivariate analysis of patient characteristics by sex, and multivariable logistic regression analyses were conducted.

RESULTS

Of the 7,540 AIS episodes registered from 2012 to 2021, 47.9% were female patients. After adjusting for demographic, clinical, and temporal factors, significantly higher utilization of CTA was found for male patients (odds ratio = 1.20 [95% confidence interval 1.07-1.34]), particularly from socio-economically advantaged groups, and in years 2015 and 2019, representing the years endovascular thrombectomy recommendations changed. Despite this, male patients had significantly lower intravenous thrombolysis utilization (odds ratio = 0.83 [95% confidence interval 0.71-0.96]) and similar endovascular thrombectomy rates as female patients. There were no significant sex differences in early clinical outcomes, and no relevant clinical or demographic factors explained the CT angiography utilization disparity.

CONCLUSION

Despite higher CT angiography utilization in socio-economically advantaged male patients with AIS, likely overutilization due to implicit biases following guideline updates, the rates of acute treatment, and early clinical outcomes were unaffected.

Racial Impact on Inpatient Stroke Quality of Care in Two Community Hospitals

INTRODUCTION

This analysis was conducted as a part of a quality improvement project aiming at identifying racial disparity in inpatient stroke quality of care.

METHODS

The Get With The Guidelines (GWTG) database was used to identify all patients discharged with any stroke diagnosis between January and December 2021. An additional chart review was conducted to ensure the accuracy of racial/ethnic categorization. The sample was dichotomized into white vs. non-white groups and compared with univariate analysis.

RESULTS

The study sample comprised 1408 encounters (1347 patients) with Mean age of 71 ± 15 years, 51% women, 82% white patients, 15% non-white patients, 72% acute ischemic stroke (AIS); 15% transient ischemic attack (TIA), 9% intracerebral hemorrhage (ICH), 3% subarachnoid hemorrhage (SAH), and 1% stroke not otherwise specified. Non-white patients were younger and had fewer concomitant diagnoses, a lower proportion of TIA, and a higher proportion of ICH (p = 0.004). In the AIS cohort, compared to white patients, non-white patients had less frequent ambulance (p = 0.009), arrived at the hospital later than white patients (7.7 h longer; p < 0.001), had more severe strokes, and had less frequent IV thrombolysis utilization (7% vs. 13%; p = 0.042). Similarly, in the TIA cohort, non-white patients' utilization of EMS was lower than that of white patients, and their hospital arrival was delayed. In the ICH cohort, non-white patients were younger and had a lower frequency of atrial fibrillation and a non-significant trend toward higher disease severity. The SAH cohort had only eight non-white patients, six of whom were transferred to a higher level of hospital care within a few hours of arrival. Importantly, the hospital-based quality metrics, such as door-to-CT time, door-to-needle time, and the Joint Commission stroke quality metrics, were similar between the two groups.

CONCLUSIONS

There is a racial disparity in the pre-hospital phase of the stroke chain of survival of non-white patients, impacting IV thrombolysis utilization. The younger age and worse lipid profile and hemoglobin A1c of non-white patients suggest the need for better preventative care starting at a young age.

Racial and ethnic disparities in the usage and outcomes of ischemic stroke treatment in the United States

OBJECTIVES

This study explores racial and ethnic differences in 1) receiving tissue plasminogen activator (tPA) and endovascular thrombectomy (EVT) as treatment for ischemic stroke and 2) outcomes and quality of care after use of tPA or EVT in the US.

MATERIALS AND METHODS

An observational analysis of 89,035 ischemic stroke patients from the 2019 National Inpatient Sample was conducted. We performed weighted logistic regressions between race and ethnicity and 1) tPA and EVT utilization and 2) in-hospital mortality. We also performed a weighted Poisson regression between race and ethnicity and length of stay (LOS) after tPA or EVT.

RESULTS

Non-Hispanic (NH) Black patients had significantly lower odds of receiving tPA (Adjusted odds ratio [AOR] = 0.85, 95 % Confidence Internal [C.I.]: 0.80-0.91) and EVT (AOR = 0.75, 95 % CI: 0.70-0.82) than NH White patients. Minority populations (including but not limited to NH Black, Hispanic, Pacific Islander, Native American, and Asian) had significantly longer hospital LOS after treatment with tPA or EVT. We did not find a significant difference between race/ethnicity and in-hospital mortality post-tPA or EVT.

CONCLUSIONS

While we failed to find a difference in in-hospital mortality, racial and ethnic disparities are still evident in the decreased usage of tPA and EVT and longer LOSs for racial and ethnic minority patients. This study calls for interventions to expand the utilization of tPA and EVT and advance quality of care post-tPA or EVT in order to improve stroke care for minority patients.

Diversity, Equity, and Inclusion: Considerations in the Geriatric Emergency Department Patient

This article introduces core topics in health equity scholarship and provides examples of how diversity, equity, and inclusion impact the aging population and emergency care of older adults. It offers strategies for promoting diversity, equity, and inclusion to both strengthen the patient-clinician therapeutic relationship and to address operations and systems that impact care of the geriatric emergency department patient.

Determinants and Temporal Trends of Dual Antiplatelet Therapy After Mild Noncardioembolic Stroke

BACKGROUND

Short-term dual antiplatelet therapy (DAPT) reduces early stroke recurrence after mild noncardioembolic ischemic stroke (NCIS). We aim to evaluate temporal trends and determinants of DAPT prescription after mild NCIS in the Florida Stroke Registry, a statewide registry across Get With The Guidelines-Stroke participating hospitals.

METHODS

In this cross-sectional analysis of a cohort study, we included patients with mild NCIS (National Institutes of Health Stroke Scale score ≤3) who were potentially eligible for DAPT across 168 Florida Stroke Registry participating hospitals between January 2010 and September 2022. Using antiplatelet prescription as the dependent variable (DAPT versus single antiplatelet therapy), we fit logistic regression models adjusted for patient-related factors, hospital-related factors, clinical presentation, vascular risk factors, and ischemic stroke subtype, to obtain adjusted odds ratios (aORs) with 95% CIs.

RESULTS

From 283 264 Florida Stroke Registry ischemic stroke patients during the study period, 109 655 NCIS were considered eligible. Among these, 37 058 patients with National Institutes of Health Stroke Scale score >3 were excluded, resulting in a sample of 72 597 mild NCIS (mean age 68±14 years; female 47.3%). Overall, 24 693 (34.0%) patients with mild NCIS were discharged on DAPT and 47 904 (66.0%) on single antiplatelet therapy. DAPT prescription increased from 25.7% in 2010 to 52.8% in 2022 (β/year 2.5% [95% CI, 1.5%-3.4%]). Factors associated with DAPT prescription were premorbid antiplatelet therapy (aOR, 4.66 [95% CI, 2.20-9.88]), large-artery atherosclerosis (aOR, 1.68 [95% CI, 1.43-1.97]), diabetes (aOR, 1.29 [95% CI, 1.13-1.47]), and hyperlipidemia (aOR, 1.24 [95% CI, 1.10-1.39]), whereas female sex (aOR, 0.83 [95% CI, 0.75-0.93]), being non-Hispanic Black patients (compared with non-Hispanic White patients; aOR, 0.78 [95% CI, 0.68-0.90]), admission to a Thrombectomy-capable Stroke Center (compared with Comprehensive Stroke Center; aOR, 0.78 [95% CI, 0.66-0.92]), time-to-presentation 1 to 7 days from last seen well (compared with <24 h; aOR, 0.86 [95% CI, 0.76-0.96]), and small-vessel disease stroke (aOR, 0.81 [95% CI, 0.72-0.94]) were associated with not receiving DAPT at discharge.

CONCLUSIONS

Despite a temporal trend increase in DAPT prescription after mild NCIS, we found substantial underutilization of evidence-based DAPT associated with significant disparities in stroke care.

Improving Patient-Reported Outcomes in Stroke Care using Remote Blood Pressure Monitoring and Telehealth

BACKGROUND

Inequities in health care access leads to suboptimal medication adherence and blood pressure (BP) control. Informatics-based approaches may deliver equitable care and enhance self-management. Patient-reported outcomes (PROs) complement clinical measures to assess the impact of illness on patients' well-being in poststroke care.

OBJECTIVES

The aim of this study was to determine the feasibility of incorporating PROs into Telehealth After Stroke Care (TASC) and to explore the effect of this team-based remote BP monitoring program on psychological distress and quality of life in an underserved urban setting.

METHODS

Patients discharged home from a Comprehensive Stroke Center were randomized to TASC or usual care for 3 months. They were provided with a BP monitor and a tablet that wirelessly transmitted data to a cloud-based platform, which were integrated with the electronic health record. Participants who did not complete the tablet surveys were contacted via telephone or e-mail. We collected the Patient-Reported Outcomes Measurement Information System Managing Medications and Treatment (PROMIS-MMT), Patient Activation Measure (PAM), Neuro-QOL (Quality of Life in Neurological Disorders) Cognitive Function, Neuro-QOL Depression, and Patient Health Questionnaire-9 (PHQ-9). T-tests and linear regression were used to evaluate the differences in PRO change between the arms.

RESULTS

Of the 50 participants, two-thirds were Hispanic or non-Hispanic Black individuals. Mechanisms of PRO submission for the arms included tablet (62 vs. 47%), phone (24 vs. 37%), tablet with phone coaching (10 vs. 16%), and e-mail (4 vs. 0%). PHQ-9 depressive scores were nominally lower in TASC at 3 months compared with usual care (2.7 ± 3.6 vs. 4.0 ± 4.1; p = 0.06). No significant differences were observed in PROMIS-MMT, PAM, or Neuro-QoL measures.

CONCLUSION

Findings suggest the feasibility of collecting PROs through an interactive web-based platform. The team-based remote BP monitoring demonstrated a favorable impact on patients' well-being. Patients equipped with appropriate resources can engage in poststroke self-care to mitigate inequities in health outcomes.

A Review of Healthcare Disparities Relevant to Interventional Radiology

Racial, ethnic, and gender disparities have received focused attention recently, as they became more visible in the COVID era. We continue to learn more about how healthcare disparities manifest for our patients and, more broadly, the structural underpinnings that result in predictable outcomes gaps. This review summarizes what we know about disparities relevant to interventional radiologists. The prevalence and magnitude of disparities are quantified and discussed where relevant. Specific examples are provided to demonstrate how factors like gender, ethnicity, social status, geography, etc. interact to create inequities in the delivery of interventional radiology (IR) care. Understanding and addressing health disparities in IR is crucial for improving real-world patient outcomes and reducing the economic burden associated with ineffective and low-value care. Finally, the importance of intentional mentorship, outreach, education, and equitable distribution of high-quality healthcare to mitigate these disparities and promote health equity in interventional radiology is discussed.

From Admission to Discharge: Predicting National Institutes of Health Stroke Scale Progression in Stroke Patients Using Biomarkers and Explainable Machine Learning

As a result of social progress and improved living conditions, which have contributed to a prolonged life expectancy, the prevalence of strokes has increased and has become a significant phenomenon. Despite the available stroke treatment options, patients frequently suffer from significant disability after a stroke. Initial stroke severity is a significant predictor of functional dependence and mortality following an acute stroke. The current study aims to collect and analyze data from the hyperacute and acute phases of stroke, as well as from the medical history of the patients, in order to develop an explainable machine learning model for predicting stroke-related neurological deficits at discharge, as measured by the National Institutes of Health Stroke Scale (NIHSS). More specifically, we approached the data as a binary task problem: improvement of NIHSS progression vs. worsening of NIHSS progression at discharge, using baseline data within the first 72 h. For feature selection, a genetic algorithm was applied. Using various classifiers, we found that the best scores were achieved from the Random Forest (RF) classifier at the 15 most informative biomarkers and parameters for the binary task of the prediction of NIHSS score progression. RF achieved 91.13% accuracy, 91.13% recall, 90.89% precision, 91.00% f1-score, 8.87% FNrate and 4.59% FPrate. Those biomarkers are: age, gender, NIHSS upon admission, intubation, history of hypertension and smoking, the initial diagnosis of hypertension, diabetes, dyslipidemia and atrial fibrillation, high-density lipoprotein (HDL) levels, stroke localization, systolic blood pressure levels, as well as erythrocyte sedimentation rate (ESR) levels upon admission and the onset of respiratory infection. The SHapley Additive exPlanations (SHAP) model interpreted the impact of the selected features on the model output. Our findings suggest that the aforementioned variables may play a significant role in determining stroke patients' NIHSS progression from the time of admission until their discharge.