Tenecteplase in acute ischemic stroke: Review of the literature and expert consensus from the French Neurovascular Society

BACKGROUND

Intravenous alteplase is the only thrombolytic treatment approved for patients with acute ischemic stroke (AIS). Although no randomized controlled trial (RCT) has shown the superiority of tenecteplase over alteplase in AIS, tenecteplase is increasingly used off-label in Stroke Units. The purpose of the present work was to provide an up-to-date set of expert consensus statements on the use of tenecteplase in AIS.

METHODS

Members of the working group were selected by the French Neurovascular Society. RCTs comparing tenecteplase and alteplase in the treatment of AIS were reviewed. Recent meta-analysis and real-life experience data on tenecteplase published until 30th October 2021 were also analyzed. After a description of the available data, we tried to answer the subsequent questions about the use of tenecteplase in AIS: What dosage of tenecteplase should be preferred? How effective is tenecteplase for cerebral artery recanalization? What is the clinical effectiveness of tenecteplase? What is the therapeutic safety of tenecteplase? What are the benefits associated with tenecteplase ease of use? Then expert consensus statements for tenecteplase use were submitted. In October 2021 the working group was asked to review and revise the manuscript. In November 2021, the current version of the manuscript was approved.

EXPERT CONSENSUS

A set of three expert consensus statements for the use of tenecteplase within 4.5hours of symptom onset in AIS patients were issued: (1) It is reasonable to use tenecteplase 0.25mg/kg when mechanical thrombectomy (MT) is planned. (2) Tenecteplase 0.25mg/kg can be used as an alternative to alteplase 0.9mg/kg in patients with medium- or small-vessel occlusion not retrievable with MT. (3) Tenecteplase 0.25mg/kg could be considered as an alternative to alteplase 0.9mg/kg in patients without vessel occlusion.

CONCLUSIONS

These expert consensus statements could provide a framework to guide the clinical decision-making process for the use of tenecteplase according to admission characteristics of AIS patients. However, existing data are limited, requiring inclusions in ongoing RCTs or real-life registries.

Abstract P508: Social Polarization and Parent Support for Child Physical Activity and Cardiovascular Health

Healthy People 2030 estimates that 3 out of 4 children (ages 6-13) do not meet guidelines for aerobic physical activity, an important contributor to cardiovascular health. Determinants of physical activity (PA) occur at individual, household, and neighborhood levels yet little is known about how geospatial risk factors (neighborhood segregation and income inequity) interact with parental influences on child PA. The current study explored the association between index of concentration of extremes (ICE) and child cardiovascular health outcomes, and whether parents PA, child PA, and parent support of child PA modified this association.

Methods: A subsample of parent-child dyads from the Family Matters Phase II cohort study (n=350) participated in a multi-method follow up study including survey, geospatial (American Community Survey), and biomarker data collection in Minneapolis-St. Paul, MN (2019-2022). Parents self-reported PA, child PA and parent support of child PA, and sociodemographic characteristics (e.g., family structure, educational attainment, annual household income) via an online survey. Children attended a clinic visit to measure height, weight, pulse, and systolic [SBP] and diastolic [DBP] blood pressure. ICE, used as a measure of census tract social polarization reflecting racial segregation and tract income inequity, was operationalized in these tertiles: concentrated deprivation, middle, and concentrated privilege. Multivariable linear regressions were used to evaluate the association between ICE tertiles and child cardiovascular health indicators (SBP, DBP, pulse, and BMI percentile). Models were adjusted for parent age, education, race and ethnicity, and household income. Interaction terms between ICE and parents PA, child PA, and parent support of child PA were further explored in these models.

Results: Increases in parent engagement in light- and moderate-intensity PA (~30-45-minute increments) were associated with -2.65 mmHg lower DBP (P<0.001) and -2.39 mmHg lower SBP respectively (P=0.001) among children living in the least privileged tracts. The overall interaction of the relationship depended on the census tract privilege (Int. P=0.014), and there was no evidence of a favorable parent PA relationship in medium and most privileged tracts. Light parent PA and ICE interactions were consistent for child pulse and DBP (Int. P<0.05). Parent limiting of screen time had favorable interaction effects for child moderate PA in medium privilege tracts but not at the extremes (Int. P=0.024).

Conclusions: Interventions targeting structural disadvantages should consider multilevel components that integrate parent support and modeling of PA to address cardiovascular health disparities in pre-adolescent children. In privileged contexts, alternative interventions may need to target sedentary behaviors to improve child PA.

Momentary predictors of a broad range of food parenting practices within a population-based sample of parents of preschool-aged children

Introduction

The current study sought to understand the influence of momentary factors within the home and family environment, including parent stress, parent and child mood and child behaviors, on parents' use of a broad range of food parenting practices later that same day.

Methods

Ecological Momentary Assessment (EMA) was used to evaluate parents' use of coercive, indulgent, structured and autonomy support food parenting practices, as well as numerous potentially salient momentary predictors, including parental stress, parent and child mood, and child behavior. Data were collected from 109 parents of preschool aged children multiple times per day over the course of a ten-day data collection period, allowing for temporal sequencing of momentary predictors and use of food parenting practices.

Results

With some notable exceptions, study findings align with study hypotheses in that parent stress, parent and child low mood, and child negative behaviors early in the day were found to be associated with the use of less supportive food parenting practices later that same day. For example, greater parent negative mood earlier in the day was associated with a decrease in use of feeding practices from within the structure domain later on that same day (-2.5%, p < 0.01), whereas greater parent positive mood earlier in the day was associated with an increase in use of structure later on that same day (+3.7%, p < 0.01). Greater parent stress earlier in the day was associated with an increase in the use of coercive control (+3.2%, p < 0.01) and indulgent (+3.0%, p < 0.01) practices later that same day; surprisingly, a similar increase in stress earlier in the day was also found to be associated with an increase in the use of autonomy support (5.6%, p < 0.01) feeding practices later on that same day.

Discussion

Developing an understanding of the types of momentary factors that influence a parent's use of particular food parenting practices across multiple contexts is a crucial next step toward developing effective interventions aimed at teaching parents to use food parenting practices that are supportive of healthful child dietary intake and eating behaviors in a way that is responsive to shifting factors.

Integrated Behavioral Health Implementation Patterns in Primary Care Using the Cross-Model Framework: A Latent Class Analysis

Primary care has increasingly adopted integrated behavioral health (IBH) practices to enhance overall care. The IBH Cross-Model Framework clarifies the core processes and structures of IBH, but little is known about how practices vary in the implementation of these processes and structures. This study aimed to describe clusters of clinics using the IBH Cross-Model Framework for a large sample of primary care clinics, as well as contextual variables associated with differences in implementation. Primary care clinics (N = 102) in Minnesota reported their level of implementation across 18 different components of IBH via the site self-assessment (SSA). The components were mapped to all five principles and four of the nine structures of the IBH Cross-Model Framework. latent class analysis was used to identify unique clusters of IBH components from the SSA across the IBH Cross-Model Framework's processes and structures. Latent classes were then regressed onto context variables. A four-class model was determined to be the best fit: Low IBH (39.6%), Structural IBH (7.9%), Partial IBH (29.4%), and Strong IBH (23.1%). Partial IBH clinics were more urban than the other three classes, lower in SES risk than Structural IBH clinics, and located in smaller organizations than Strong IBH clinics. There were no differences between classes in race/ethnicity of the clinic area or practice size. Four groups of IBH implementation were identified representing unique profiles of integration. These clusters may represent patterns of community-based implementation of IBH that indicate easier and more challenging aspects of IBH implementation.

Comparative Study of Lipid Content in Leptoclinus maculatus Postlarvae from Kongsfjord and Rjipfjord, Svalbard Archipelago

A comparative study of lipid profile of the daubed shanny Leptoclinus maculatus postlarvae from fjords of different domains (arctic-boreal Kongsfjord and high-arctic Rjipfjord) of Svalbard Archipelago waters in summer was performed. A more efficient accumulation of lipids in the fishes from Kongsfjord compared to Rjipfjord due to triacylglycerols and wax esters was established. These differences may be related mainly to the trophic conditions of the habitat (species composition, abundance, and availability of food items). The higher level of cholesterol esters than wax esters at the L1 stage of development of the daubed shanny postlarvae compared to older fishes pointed to their active feeding mainly on phytoplankton. The differences in the content of certain classes of phospholipids may indicate adaptive changes at the level of biomembranes, contributing to the maintenance of cell homeostasis in response to abiotic environmental factors, and reflect their additional intake with food at the early stages of fish development.

Ecological Momentary Assessment of Weight-Related Behaviors in the Home Environment of Children From Low-Income and Racially and Ethnically Diverse Households: Development and Usability Study

Background

Ecological momentary assessment (EMA) is an innovative tool for capturing in-the-moment health behaviors as people go about their daily lives. EMA is an ideal tool to measure weight-related behaviors, such as parental feeding practices, stress, and dietary intake, as these occur on a daily basis and vary across time and context. A recent systematic review recommended standardized reporting of EMA design for studies that address weight-related behaviors.

Objective

To answer the call for reporting study designs using EMA, this paper describes in detail the EMA design of the Family Matters study and how it was adapted over time to improve functionality and meet the needs of a racially, ethnically, and socioeconomically diverse sample.

Methods

Family Matters is an incremental, 2-phased, mixed methods study, conducted with a racially and ethnically diverse, immigrant and refugee sample from largely low-income households, designed to examine risk and protective factors for child weight and weight-related behaviors in the home environment. The Family Matters study intentionally recruited White, Black, Hmong, Latino, Native American, and Somali parents with young children. Parents in phase 1 of the study completed 8 days of EMA on their smartphones, which included signal-contingent surveys (eg, asking about the parent’s stress at the time of the survey), event-contingent surveys (eg, descriptions of the meal the child ate), and end-of-day surveys (eg, overall assessment of the child’s day).

Results

A detailed description of EMA strategies, protocols, and methods used in phase 1 of the Family Matters study is provided. Compliance with EMA surveys and participants’ time spent completing EMA surveys are presented and stratified by race and ethnicity. In addition, lessons learned while conducting phase 1 EMA are shared to document how EMA methods were improved and expanded upon for phase 2 of the Family Matters study.

Conclusions

The results from this study provided an important next step in identifying best practices for EMA use in assessing weight-related behaviors in the home environment.

International Registered Report Identifier (IRRID)

DERR1-10.2196/30525

Influence of operator experience on the technical and clinical results of Woven EndoBridge endovascular treatment for intracranial aneurysms

BACKGROUND & PURPOSE

The safety and efficacy of the Woven EndoBridge (WEB) device has been proven in recent multicenter trials. This study investigated whether operator experience influences WEB treatment-related outcomes.

MATERIAL AND METHODS

This was a retrospective analysis of a prospectively collected multicenter database. The data of all patients who underwent WEB treatment for an intracranial aneurysm from March 2014 to June 2020 in two high-volume centers were pooled. Operator experience was indexed by the number of WEB treatments performed previously. The primary endpoint was the overall complication rate. Secondary endpoints were long-term adequate (Raymond-Roy classification of 1-2.) angiographic occlusion, WEB-related complications, number of WEB not deployed, procedure duration, and radiation exposure (air kerma).

RESULTS

Among 237 patients (mean age 59.4 +/- 11.5 years) treated with WEB (median aneurysm diameter, 5.8 mm; interquartile range 4.5-7 mm), WEB-related complications occurred in 28 patients (11.8%) and adequate long-term occlusion was achieved for 154 aneurysms (86%). The median number of WEB treatment performed previously per operator was 20 (IQR, 9-41). The overall complication rate, WEB-related complication rate and aneurysm occlusion rate were not significantly correlated with WEB operator experience. There were also no significant correlations between the WEB operator experience and the number of WEB not deployed, procedure duration or radiation exposure.

CONCLUSION

There was no significant association between the number of WEB treatments previously performed per operator and any technical or clinical results after intracranial aneurysm treatment with WEB. These results imply a relatively short learning curve for this device in high-volume neurovascular centers.

Barriers to Accessing Healthy Food and Food Assistance During the COVID-19 Pandemic and Racial Justice Uprisings: A Mixed-Methods Investigation of Emerging Adults' Experiences

Background

A steep rise in food insecurity is among the most pressing US public health problems that has resulted from the COVID-19 pandemic.

Objective

This study aimed to (1) describe how food-insecure emerging adults are adapting their eating and child-feeding behaviors during COVID-19 and (2) identify barriers and opportunities to improve local food access and access to food assistance.

Design

The COVID-19 Eating and Activity Over Time study collected survey data from emerging adults during April to October 2020 and completed interviews with a diverse subset of food-insecure respondents.

Participants/setting

A total of 720 emerging adults (mean age: 24.7 ± 2.0 years; 62% female; 90% living in Minnesota) completed an online survey, and a predominately female subsample (n = 33) completed an interview by telephone or videoconference.

Main outcome measures

Survey measures included the short-form of the US Household Food Security Survey Module and 2 items to assess food insufficiency. Interviews assessed eating and feeding behaviors along with barriers to healthy food access.

Analyses performed

Descriptive statistics and a hybrid deductive and inductive content analysis.

Results

Nearly one-third of survey respondents had experienced food insecurity in the past year. Interviews with food-insecure participants identified 6 themes with regard to changes in eating and feeding behavior (eg, more processed food, sporadic eating), 5 themes regarding local food access barriers (eg, limited enforcement of COVID-19 safety practices, experiencing discrimination), and 4 themes regarding barriers to accessing food assistance (eg, lack of eligibility, difficulty in locating pantries). Identified recommendations include (1) expanding the distribution of information about food pantries and meal distribution sites, and (2) increasing fresh fruit and vegetable offerings at these sites.

Conclusions

Interventions of specific relevance to COVID-19 (eg, stronger implementation of safety practices) and expanded food assistance services are needed to improve the accessibility of healthy food for emerging adults.

How Time in the US and Race/Ethnicity Shape Parents Feeding Practices and Child Diet Quality

Objectives

Childhood obesity is a critical public health issue with short and long-term health and financial burdens. Studies show that childhood obesity is higher among children of immigrant/refugee households compared to children whose parents were born in the United States. Poor child dietary intake is a critical risk factor for elevated obesity prevalence. Nonetheless, parents feeding practices are known to be associated with child dietary intake. Thus, this study aimed to examine the associations between length of residence time in the US of migrants/refugees, parents feeding practices, and child diet quality while also taking into consideration race/ethnicity.

Methods

Data are from baseline measures of a longitudinal cohort study called Family Matters. The sample includes 1307 children ages 5–9 and their families from six racial/ethnic backgrounds.

Results

Results showed that feeding practices of immigrant/refugee parents changed in relation to their length of residency in the US, in particular, with regard to using directive (e.g., restriction), non-directive (e.g., modeling), and emotional feeding practices. Additionally, race/ethnicity was found to influence the relation between time length in the US and parents feeding practices. Moreover, the diet quality score changed in relation to parents' length of time in the US. For example, Hmong children had the poorest diet quality compared to African American, Native American, Hispanic, Somali, and White children.

Conclusions

Future research should consider studying more in-depth why parent feeding practices may change when parents move to the US and explore whether there is a combination of parent feeding practices that are most useful in promoting healthful child diet quality. It is also important to further examine why child diet quality declines (e.g., Hmong children) with parents' time living in the US as a migrant/refugee.

Funding Sources

Research is supported by grant number R01HL126171 from the National Heart, Lung, and Blood Institute (PI: Berge). Content is solely the responsibility of the authors and does not necessarily represent the official views of the National Heart, Lung, and Blood Institute of the National Institutes of Health.

Days Needed to Characterize the Healthfulness of a Typical Dinner Meal in Direct Observational Research: Mixed Methods Study

BACKGROUND

Prior research around the home meal environment has demonstrated that family meals are associated with positive health outcomes for children and adolescents. Researchers have begun using direct observational methods to understand key aspects of family meals such as meal healthfulness and family meal frequency to explain the protective nature of family meals. Direct observational research, however, can be resource intensive and also burdensome for participants. Information about the number of days needed to sufficiently characterize typical meal healthfulness using direct observational research methods is needed.

OBJECTIVE

The current study aimed to produce guidance about the number of meals necessary to approximate typical meal healthfulness at the family dinner meal occasion in a direct observational, mixed methods study of the home food environment.

METHODS

Families were recruited between 2012-2013 from primary care clinics in the Minneapolis-St Paul metropolitan area (N=120). A total of 800 meals were collected as part of the Family Meals LIVE! mixed methods study. The Healthfulness of Meal Index was used to evaluate meal dietary healthfulness of foods served at 8 family meal occasions. Participating families were provided an iPad (Apple Inc) and asked to video-record 8 consecutive days of family dinner meals with a minimum of two weekend meals. After the meal, families completed a meal screener, which is a self-reported, open-ended measure of the foods served at the meal.

RESULTS

Weekend and weekday meals differed in their measurement of meal healthfulness, indicating that at least one weekday and one weekend day are necessary to approximate meal healthfulness. Single-day measurement mischaracterized the strength of the relationship between the quality of what was served and intake by almost 50%, and 3 to 4 observation days were sufficient to characterize typical weekly meal healthfulness (r=0.94; P<.001).

CONCLUSIONS

Relatively few direct observational days of family meals data appear to be needed to approximate the healthfulness of meals across 1 week. Specifically, 1 weekday and 1 weekend observation are needed, including a total of 3 to 4 days of direct observational meal data. These findings may inform future direct observational study designs to reduce both research costs and participant burden in assessing features of the meal environment.

Emerging adults' intersecting experiences of food insecurity, unsafe neighbourhoods and discrimination during the coronavirus disease 2019 (COVID-19) outbreak

OBJECTIVE

To examine how food insecurity is related to emerging adults' food behaviours and experiences of neighbourhood safety and discrimination and to identify resources needed to support their health during the COVID-19 outbreak.

DESIGN

Rapid response online survey. Participants completed the six-item US Household Food Security Survey Module, a brief measure of food insufficiency, and measures of food behaviours, neighbourhood safety and discrimination. Open-ended questions were used to assess changes in eating behaviours during COVID-19 and needed resources.

SETTING

C-EAT (COVID-19 Eating and Activity over Time) study invitations were sent by email and text message to a longitudinal cohort.

PARTICIPANTS

A total of 218 emerging adults (mean age = 24·6 (sd 2·0) years, 70·2 % female) completed a survey in April-May 2020 during a stay-at-home order in Minnesota.

RESULTS

The past year prevalence of food insecurity was 28·4 %. Among food-insecure respondents, 41·0 % reported both eating less and experiencing hunger due to lack of money in the past month. Food-insecure respondents were less likely than those who were food secure to have fruits/vegetables at home and more likely to have frequent fast-food restaurant meals, feel unsafe in their neighbourhood and experience discrimination during the stay-at-home order. Food-insecure adults reported changes including eating more food prepared at home, eating more take-out restaurant meals and purchasing more energy-dense snacks as a result of events related to COVID-19. Resources most needed to support their health included eligibility for more food assistance and relief funds.

CONCLUSIONS

Food-insecure emerging adults experience many barriers to maintaining healthful eating patterns during COVID-19.

Development of a bio-optical model for the Barents Sea to quantitatively link glider and satellite observations

A bio-optical model for the Barents Sea is determined from a set of in situ observations of inherent optical properties (IOPs) and associated biogeochemical analyses. The bio-optical model provides a pathway to convert commonly measured parameters from glider-borne sensors (CTD, optical triplet sensor-chlorophyll and CDOM fluorescence, backscattering coefficients) to bulk spectral IOPs (absorption, attenuation and backscattering). IOPs derived from glider observations are subsequently used to estimate remote sensing reflectance spectra that compare well with coincident satellite observations, providing independent validation of the general applicability of the bio-optical model. Various challenges in the generation of a robust bio-optical model involving dealing with partial and limited quantity datasets and the interpretation of data from the optical triplet sensor are discussed. Establishing this quantitative link between glider-borne and satellite-borne data sources is an important step in integrating these data streams and has wide applicability for current and future integrated autonomous observation systems. This article is part of the theme issue 'The changing Arctic Ocean: consequences for biological communities, biogeochemical processes and ecosystem functioning'.

Do High School Students Participate in Second Chance Breakfast Programs?

BACKGROUND

Breakfast consumption often decreases as youth get older. The School Breakfast Program (SBP) provides an opportunity to intervene and increase breakfast consumption, especially among high school students.

METHODS

Project breakFAST implemented an expanded breakfast service at 12 high schools. In this longitudinal evaluation, school administrators provided SBP participation and demographic data on all ninth and 10th graders for two full consecutive school years. Students screened for eating breakfast <3 times/week were randomly selected to participate in the cohort study. The cohort completed a survey on perceived barriers, benefits, and breakfast habits.

RESULTS

At baseline, all 12 schools had only traditional before school cafeteria SBP service. Mean participation was 16.3% and ranged from 7.9 to 38.1%. After the intervention, there was an increase in participation to 25.7% (p = .004) ranging from 14.1 to 47.5%. There was no change in breakfast participation before school (13.3%, p = .06). Students who traveled to school by car, bike, or walking at baseline were 4.5% less likely to participate in second chance breakfast at follow-up than those who took the bus to school (p = .006).

CONCLUSION

Second chance breakfast is an option for increasing high school breakfast participation, especially for those riding the bus.

P09.08 Increased incidence of intracranial meningiomas in patients with acromegaly

BACKGROUND

An increased incidence of various neoplasms has been described in patients with acromegaly and there is evidence to suggest that growth factors are risk factors for the development of meningiomas. We aimed to study if patients with acromegaly are more at risk for developing intracranial meningiomas

MATERIAL AND METHODS

We conducted an observational study on 221 consecutive acromegalic patients recruited between January 1, 2000 and December 31, 2015, and 357 consecutive patients with a non-somatotropic pituitary adenoma recruited between March 1, 2015 and December 31, 2016 in our institution. Patients underwent a gadolinium-enhanced 3D T1 brain MRI to look for meningiomas. The proportion of meningiomas was compared between the two groups and the standardized incidence ratio (SIR) was computed from the incidence rates of meningiomas observed in the population of acromegalic patients and compared to that of the general population given by the local registry of central nervous system tumors.

RESULTS

Patients with acromegaly had a significant risk for developing intracranial meningiomas as compared to patients without acromegaly (7.7% vs. 2.2%, p = .005, OR = 3.45 [1.46; 8.15]). There was a significant increased incidence of intracranial meningiomas in patients with acromegaly (SIR = 126 [25; 367]) as compared to the general population.

CONCLUSION

Our study provides the first evidence that patients with acromegaly are more at risk for developing intracranial meningiomas.

A healthful home food environment: Is it possible amidst household chaos and parental stress?

PURPOSE

This study examines how household chaos and unmanaged parental stress are associated with and contribute to variance in markers of the home food environment (family meal frequency, perceived barriers to cooking, healthful home food availability). Obtaining a better understanding of these relationships could guide more effective family-based interventions to promote healthful home food environments.

METHODS

The analytic sample included 819 households with children in the population-based Project EAT-IV cohort with survey data from 2015 to 2016. Multiple linear regression was used to generate means and 95% confidence intervals of home food environment variables, and estimates for the contribution of household chaos (defined by frenetic activity, loud noises and disorder), and quartiles of unmanaged parental stress (ratio of perceived stress and ability to manage stress). Model fit was also examined.

RESULTS/FINDINGS

Both household chaos and quartiles of unmanaged parental stress were independently and inversely associated with family meal frequency (p's < 0.001) and positively associated with perceived mealtime preparation barriers (p's < 0.001). Unmanaged parental stress was also inversely associated with healthful home food availability (p = 0.004). Models including demographic characteristics, household chaos scores, and quartiles of unmanaged parental stress index showed significantly improved model fit for all outcomes compared to less comprehensive models. Among families with high chaos, those having 7 + family meals/week were significantly more likely to have lower mealtime preparation barrier scores, younger children and higher healthful home food availability scores than families eating together less often.

CONCLUSIONS

Interventions to assist with parental management of stress and chaos within the home environment (e.g., establishing routines) may increase family meal frequency and the quality of children's home food environments.

First-Line Sofia Aspiration Thrombectomy Approach within the Endovascular Treatment of Ischemic Stroke Multicentric Registry: Efficacy, Safety, and Predictive Factors of Success

BACKGROUND AND PURPOSE

After publications on the effectiveness of mechanical thrombectomy by stent retrievers in acute ischemic stroke with large-vessel occlusion, alternative endovascular approaches have been proposed using first-line aspiration catheters. Several devices are currently available to perform A Direct Aspiration First Pass Technique. The Sofia catheter aspiration has been widely used by interventionalists, but data are scarce about its efficacy and safety. Our aim was to report our multicenter thrombectomy experience with first-line Sofia catheter aspiration and to identify independent prognostic factors of clinical and procedural outcomes.

MATERIALS AND METHODS

We performed a retrospective analysis of the prospectively maintained Endovascular Treatment of Ischemic Stroke multicentric registry. Data from consecutive patients who benefited from thrombectomy with a first-line Sofia approach between January 2013 and April 2018 were studied. We excluded other first-line approaches (stent retriever or combined aspiration and stent retriever) and extracranial occlusions. Baseline characteristics, procedural data, and angiographic and clinical outcomes were analyzed.

RESULTS

During the study period, 296 patients were treated. Mean age and initial NIHSS score were, respectively, 69.5 years and 16. Successful reperfusion, defined by the modified TICI 2b/3, was obtained in 86.1% (n = 255; 95% CI, 81.7%-89.9%). Complete reperfusion (modified TICI 3) was obtained in 41.2% (n = 122; 95% CI, 35.5%-47.1%). A first-pass effect was achieved in 24.2% (n = 71; 95% CI, 19.4%-29.6%). A rescue stent retriever approach was required in 29.7% (n = 88; 95% CI, 24.6%-35.3%). The complication rate was 9.5% (n = 28; 95% CI, 6.4%-13.5%). Forty-three percent (n = 122; 95% CI, 37.1%-48.9%) of patients presented with a favorable 3-month outcome (mRS ≤ 2). Older age, M1-occlusion topography, and intravenous thrombolysis use prior to thrombectomy were independent predictors of the first-pass effect.

CONCLUSIONS

The first-line contact aspiration approach appeared safe and efficient with Sofia catheters. These devices achieved very high reperfusion rates with a low requirement for stent retriever rescue therapy, especially for M1 occlusions.

Cost-effectiveness analysis of mechanical thrombectomy plus tissue-type plasminogen activator compared with tissue-type plasminogen activator alone for acute ischemic stroke in France

BACKGROUND AND PURPOSE

Recent studies demonstrated the benefit of mechanical thrombectomy (MT) plus intravenous tissue-type plasminogen activator (IV-tPA) (MT-IV-tPA) in acute ischemic stroke. This study aimed to estimate the cost-utility of MT-IV-tPA compared with IV-tPA alone from the perspective of the French National Health Insurance.

METHODS

We developed a decision tree for the first 3 months after stroke onset and a Markov model until 10 years post-stroke. The health states of the Markov model were according to the modified Rankin Scale (mRS): independent (mRS=0-2), dependent (mRS=3-5), dead (mRS=6). Recurrent stroke was the fourth health stage of our model. We conducted systematic literature reviews and meta-analyses to estimate the cost and utility of each health state, and the transition probabilities between health states. A microcosting study was conducted to estimate the cost of MT. We estimated the incremental cost-effectiveness ratio of MT-IV-tPA and conducted a probabilistic analysis in order to estimate the probability that MT-IV-tPA is cost-effective compared to IV-tPA, the expected value of perfect information (EVPI), and the expected value of partial perfect information (EVPPI), given the uncertainty surrounding the value of our model's parameters.

RESULTS

The total mean (standard deviation (SD) cost of MT was €6708.9 (2357.0). The incremental cost-effectiveness ratio (ICER) of the strategy using IV-tPA combined to MT costs was €14,715 per QALY gained as compared to a strategy using IV-tPA alone. The probabilistic analysis showed that the probability of MT-IV-TPA being cost-effective was 85.4% at threshold willingness-to-pay of €30,000 per QALY gained, reaching 98% at €50,000 per QALY gained.

CONCLUSION

Although there is no universally accepted willingness-to-pay threshold in France, our analysis suggest that MT combined to IV-tPA can be considered a cost-effective treatment compared with IV-tPA alone.

Myelin Detection Using Rapid Quantitative MR Imaging Correlated to Macroscopically Registered Luxol Fast Blue-Stained Brain Specimens

BACKGROUND AND PURPOSE

Myelin detection is of great value in monitoring diseases such as multiple sclerosis and dementia. However, most MR imaging methods to measure myelin are challenging for routine clinical use. Recently, a novel method was published, in which the presence of myelin is inferred by using its effect on the intra- and extracellular water relaxation rates and proton density, observable by rapid quantitative MR imaging. The purpose of this work was to validate this method further on the brains of 12 fresh, intact cadavers.

MATERIALS AND METHODS

The 12 brains were scanned with a quantification sequence to determine the longitudinal and transverse relaxation rates and proton density as input for the myelin estimations. Subsequently, the brains were excised at postmortem examination, and brain slices were stained with Luxol fast blue to verify the presence of myelin. The optical density values of photographs of the stained brain slices were registered with the MR images and correlated with the myelin estimation performed by quantitative MR imaging.

RESULTS

A correlation was found between the 2 methods with a mean Spearman ρ for all subjects of 0.74 ± 0.11. Linear regression showed a mean intercept of 1.50% ± 2.84% and a mean slope of 4.37% ± 1.73%/%. A lower correlation was found for the separate longitudinal relaxation rates and proton density (ρ = 0.63 ± 0.12 and -0.73 ± 0.09, respectively). For transverse relaxation rates, the ρ was very low (0.11 ± 0.28).

CONCLUSIONS

The observed correlation supports the validity of myelin measurement by using the MR imaging quantification method.

The Art of Listening

Communication, once thought of as a soft skill for physicians, is now recognized as an essential skill. This article asserts that listening is the foundation of good communication and that all physicians can become better listeners if they have the desire to improve and are intentional about how they approach listening. The authors share five strategies to help physicians improve their skills: listening with curiosity, reflective listening, empathic listening, listening for discrepancies and listening in silence.

A comparison of acute vascular damage caused by ADAPT versus a stent retriever device after thrombectomy in acute ischemic stroke: a histological and ultrastructural study in an animal model

Background

It has been amply demonstrated that endovascular procedures can be successful treatment for stroke, both in terms of revascularization and clinical outcome. There is not, however, a published comparison of any histological or ultrastructural damage to the vessels that may be caused by a direct aspiration first pass technique (ADAPT) or stent retrievers (SR) used in these procedures. This study analyses and compares acute damage to the arterial wall caused by ADAPT or SR.

Material and methods

Damage to the walls of swine extracranial arteries was evaluated after ADAPT with the Penumbra system or thrombectomy with an SR (Solitaire 6×30). The procedures were performed after injecting thrombi into the selected arteries (arteries with diameters similar to those of the human internal carotid artery and first segment of the middle cerebral artery). After the procedures, the animal was euthanized and 12 arterial samples were obtained for analysis by optical and electronic microscopy.

Results

Tissue samples from the vessels treated with SR showed almost complete loss of endothelium, thickening of the internal elastic lamina, and degeneration of the elastic fibers of the bordering lamina media and adventitia. In contrast, tissue samples of the vessels treated with ADAPT had a clear integral internal elastic lamina and uninterrupted endothelial lining, although cell alignment was altered and there were surface lacerations due to manipulation of the samples.

Conclusions

Both techniques caused acute damage to the vessel walls, however, thrombectomy with SR appeared to be more harmful to all layers of the arterial wall, particularly the endothelium.

Role of parenting styles in adolescent substance use: results from a Swedish longitudinal cohort study

OBJECTIVE

Adolescent substance use is an area of concern because early substance use is associated with a higher risk of adverse outcomes. Parenting style, defined as the general style of parenting, as well as substance-specific parenting practices may influence children's substance use behaviour. The present study aims to probe the impact of parenting style on adolescent substance use.

METHOD

A cohort of 1268 adolescents (48% girls), aged 12-13 years at baseline, from 21 junior high schools was assessed in the first semester of junior high school, and then again in the last semester of the 9th grade, 32 months later. Parenting style, operationalised as a fourfold classification of parenting styles, including established risk factors for adolescent substance use, were measured at baseline.

RESULTS

Neglectful parenting style was associated with worse substance use outcomes across all substances. After adjusting for other proximal risk factors in multivariate analyses, parenting style was found to be unrelated to substance use outcomes with one exception: authoritative parenting style was associated with less frequent drinking. Association with deviant peers, delinquent behaviour, provision of alcohol by parents, and previous use of other substances were associated with substance use outcomes at follow-up.

CONCLUSIONS

The results of the present study indicate that parenting style may be less important for adolescent substance use outcomes than what has previously been assumed, and that association with deviant peers and delinquent behaviour may be more important for adolescent substance use outcomes than general parenting style.

Longitudinal associations between parenting style and adolescent disordered eating behaviors

PURPOSE

The main purpose of this study was to identify the longitudinal association between specific parenting styles (authoritarian, authoritative, permissive, and neglectful) and adolescent disordered eating behaviors.

METHODS

The current study uses longitudinal data from a 5-year study to examine the associations between parenting style and disordered eating behaviors among adolescents. Data from adolescents (n = 2516) participating in Project EAT (Eating Among Teens), a population-based study from 31 Minnesota schools, were used in the analysis. Time 1 data were collected using in-class assessments of adolescents from Minneapolis/St. Paul schools, and Time 2 data were collected using mailed surveys 5 years later. General Linear Models were used to predict adolescent-reported disordered eating behaviors at Time 2 from adolescent-reported parenting style at Time 1.

RESULTS

Adolescent boys and girls who had authoritarian mothers at Time 1 had a higher probability of extreme weight control behaviors 5 years later compared to adolescents with authoritative, permissive, or neglectful mothers. Adolescent girls with authoritarian mothers at Time 1 had a higher probability of engaging in binge-eating behaviors at Time 2 compared to adolescent girls with authoritative or permissive mothers. There were no significant associations between paternal parenting style and adolescent disordered eating behaviors. Although authoritarian parenting style served as a possible risk factor for disordered eating behaviors in adolescents, the findings were not conclusive.

CONCLUSION

Future studies should investigate further the association between parenting style and weight control behaviors in adolescents.

Dietary and weight-related behaviors and body mass index among Hispanic, Hmong, Somali, and white adolescents

BACKGROUND

The population of the United States is becoming increasingly ethnically and racially diverse, much of it due to immigration patterns. However, little is known about dietary intake and weight-related concerns and behaviors of youth from some ethnic-minority groups, especially Hispanic, Hmong, and Somali adolescents.

OBJECTIVE

Our aim was to describe dietary intake and weight-related concerns and behaviors among Hispanic, Hmong, and Somali adolescents and compare them with white adolescents.

DESIGN

We performed a cross-sectional analysis of data from Eating and Activity in Teens 2010, a population-based study in the Minneapolis/St Paul metropolitan area.

PARTICIPANTS/SETTING

Current analysis includes 1,672 adolescents (Hispanic: n=562 [33.6%]; Hmong: n=477 [28.5%]; Somali: n=113 [6.8%]; white: n=520 [31.1%]; mean age=15.0 years). Adolescents completed classroom surveys and had their height/weight measured during the 2009-2010 academic year.

STATISTICAL ANALYSIS

Multivariable regression models, adjusted for socioeconomic status, age, and school as a random effect were used to examine racial/ethnic differences for each outcome variable for boys and girls.

RESULTS

There were numerous differences in the behaviors of Hispanic, Hmong, and Somali adolescents as compared with whites. Hispanic and Somali youth consumed fruit and fast food more frequently. Hmong adolescents consumed sugar-sweetened beverages less frequently, and Somali boys consumed energy and sport drinks more frequently than whites. Compared with white boys, overweight/obesity was higher among Hispanic and Hmong. A higher percentage of Hmong and Somali adolescents engaged in unhealthy weight control behaviors. Body satisfaction was lower for all Hmong adolescents compared with whites.

CONCLUSIONS

There were varying areas of concern in dietary intake, weight, and weight-related concerns and behaviors among adolescents in all ethnic groups. Future nutrition and physical activity interventions that include adolescents from these ethnic and cultural groups can benefit from, for example, modifying intervention strategies to the specific priority behaviors within the target population.

Dietary and weight-related behaviors and body mass index among Hispanic, Hmong, Somali, and white adolescents

BACKGROUND

The population of the United States is becoming increasingly ethnically and racially diverse, much of it due to immigration patterns. However, little is known about dietary intake and weight-related concerns and behaviors of youth from some ethnic-minority groups, especially Hispanic, Hmong, and Somali adolescents.

OBJECTIVE

Our aim was to describe dietary intake and weight-related concerns and behaviors among Hispanic, Hmong, and Somali adolescents and compare them with white adolescents.

DESIGN

We performed a cross-sectional analysis of data from Eating and Activity in Teens 2010, a population-based study in the Minneapolis/St Paul metropolitan area.

PARTICIPANTS/SETTING

Current analysis includes 1,672 adolescents (Hispanic: n=562 [33.6%]; Hmong: n=477 [28.5%]; Somali: n=113 [6.8%]; white: n=520 [31.1%]; mean age=15.0 years). Adolescents completed classroom surveys and had their height/weight measured during the 2009-2010 academic year.

STATISTICAL ANALYSIS

Multivariable regression models, adjusted for socioeconomic status, age, and school as a random effect were used to examine racial/ethnic differences for each outcome variable for boys and girls.

RESULTS

There were numerous differences in the behaviors of Hispanic, Hmong, and Somali adolescents as compared with whites. Hispanic and Somali youth consumed fruit and fast food more frequently. Hmong adolescents consumed sugar-sweetened beverages less frequently, and Somali boys consumed energy and sport drinks more frequently than whites. Compared with white boys, overweight/obesity was higher among Hispanic and Hmong. A higher percentage of Hmong and Somali adolescents engaged in unhealthy weight control behaviors. Body satisfaction was lower for all Hmong adolescents compared with whites.

CONCLUSIONS

There were varying areas of concern in dietary intake, weight, and weight-related concerns and behaviors among adolescents in all ethnic groups. Future nutrition and physical activity interventions that include adolescents from these ethnic and cultural groups can benefit from, for example, modifying intervention strategies to the specific priority behaviors within the target population.

NET-Works: Linking families, communities and primary care to prevent obesity in preschool-age children

Obesity prevention in children offers a unique window of opportunity to establish healthful eating and physical activity behaviors to maintain a healthful body weight and avoid the adverse proximal and distal long-term health consequences of obesity. Given that obesity is the result of a complex interaction between biological, behavioral, family-based, and community environmental factors, intervention at multiple levels and across multiple settings is critical for both short- and long-term effectiveness. The Minnesota NET-Works (Now Everybody Together for Amazing and Healthful Kids) study is one of four obesity prevention and/or treatment trials that are part of the Childhood Obesity Prevention and Treatment (COPTR) Consortium. The goal of the NET-Works study is to evaluate an intervention that integrates home, community, primary care and neighborhood strategies to promote healthful eating, activity patterns, and body weight among low income, racially/ethnically diverse preschool-age children. Critical to the success of this intervention is the creation of linkages among the settings to support parents in making home environment and parenting behavior changes to foster healthful child growth. Five hundred racially/ethnically diverse, two-four year old children and their parent or primary caregiver will be randomized to the multi-component intervention or to a usual care comparison group for a three-year period. This paper describes the study design, measurement and intervention protocols, and statistical analysis plan for the NET-Works trial.

Contemporary research on parenting: conceptual, methodological, and translational issues

Researchers over the last decade have documented the association between general parenting style and numerous factors related to childhood obesity (e.g., children's eating behaviors, physical activity, and weight status). Many recent childhood obesity prevention programs are family focused and designed to modify parenting behaviors thought to contribute to childhood obesity risk. This article presents a brief consideration of conceptual, methodological, and translational issues that can inform future research on the role of parenting in childhood obesity. They include: (1) General versus domain specific parenting styles and practices; (2) the role of ethnicity and culture; (3) assessing bidirectional influences; (4) broadening assessments beyond the immediate family; (5) novel approaches to parenting measurement; and (6) designing effective interventions. Numerous directions for future research are offered.

Osteoblastoma of the ethmoid sinus

Osteoblastoma is a rare benign bone tumor that occurs unusually in the nasal sinuses. We report one case of sinonasal osteoblastoma in a 12-year-old girl who presented with nasal obstruction and telecanthus on the right side. Computed tomography revealed a lesion of the right ethmoid sinus with heterogenous bony density, which was displacing the orbital contents and the skull base. Biopsy caused significant bleeding. Magnetic resonance imaging showed intense homogeneous enhancement with typical flow-void areas due to large pathological vessels. This MRI feature must alert the clinician on the diagnosis before biopsy and surgical resection after embolization is performed. This case report describes the diagnostic and therapeutic difficulties of this rare tumor.

Retention of ice-associated amphipods: possible consequences for an ice-free Arctic Ocean

Recent studies predict that the Arctic Ocean will have ice-free summers within the next 30 years. This poses a significant challenge for the marine organisms associated with the Arctic sea ice, such as marine mammals and, not least, the ice-associated crustaceans generally considered to spend their entire life on the underside of the Arctic sea ice. Based upon unique samples collected within the Arctic Ocean during the polar night, we provide a new conceptual understanding of an intimate connection between these under-ice crustaceans and the deep Arctic Ocean currents. We suggest that downwards vertical migrations, followed by polewards transport in deep ocean currents, are an adaptive trait of ice fauna that both increases survival during ice-free periods of the year and enables re-colonization of sea ice when they ascend within the Arctic Ocean. From an evolutionary perspective, this may have been an adaptation allowing success in a seasonally ice-covered Arctic. Our findings may ultimately change the perception of ice fauna as a biota imminently threatened by the predicted disappearance of perennial sea ice.

Flow-diverter silk stent for the treatment of intracranial aneurysms: 1-year follow-up in a multicenter study

BACKGROUND AND PURPOSE

FD stent placement is a promising therapy for challenging intracranial aneurysms. Long-term evaluations about angiographic and morphologic results are still missing. This is the aim of this multicenter series.

MATERIALS AND METHODS

We report our experience and 1-year FU in a retrospective chart review of 65 consecutive subjects with 77 unruptured or recanalized aneurysms that were treated with Silk FD stents at 6 centers in France. Both angiographic and clinical results were recorded before treatment and at 6 and 12 months after treatment. At the 12-month FU, relationships between angiographic aneurysm occlusion and shrinkage of the thrombosed aneurysm sac were evaluated.

RESULTS

Stent deployment was achieved in 64 cases (98.5%) and failed in 1 case (1.5%). Seven misdeployments of the Silk stent caused the occlusion of 6 parent arteries. Overall acute/subacute procedural morbidity was 7.7%, and mortality was zero. Delayed complications were observed in 10.9% of subjects. At the 6-month FU, permanent morbidity was 7.8% and mortality was 3%. Complete occlusion occurred within 6 months in 68% of aneurysms and within 12 months after treatment in 84.5% of aneurysms. At the 12-month FU, in angiographically complete occluded aneurysms, MR imaging/CT analysis showed the complete disappearance of the thrombosed aneurysm in 30% of cases and partial shrinkage in 52%; furthermore, thrombosed aneurysms were stable in 11% of cases and enlarged in 7%.

CONCLUSIONS

The Silk stent is an effective tool for the treatment of challenging aneurysms because it allows complete occlusion in most cases 1 year after treatment. Permanent morbidity was 7.8%, and mortality was 3%.

Perianeurysmal brain inflammation after flow-diversion treatment

BACKGROUND AND PURPOSE

Flow-diverter stents are an alternative treatment for challenging and recurrent aneurysms. Thrombosis of the sac is thought to induce perianeurysmal brain inflammation, but such phenomena have never been studied in flow-diverter devices. We developed imaging data to explain the clinical exacerbation of symptoms after flow-diversion treatment.

MATERIALS AND METHODS

Seventeen patients with unruptured aneurysms were treated by using a flow-diverter device. Clinical symptoms and angiographic and MR imaging features were recorded before and after treatment, during both the acute and chronic phases, to look for inflammatory reaction.

RESULTS

Seven of the 17 patients (41%) showed a delayed clinical aggravation of symptoms posttreatment consisting of a headache (n = 7) with aggravation of pre-existing compressive symptoms (n = 4) and the appearance of compressive symptoms (n = 1). This clinical deterioration was transient; it was observed between 3 and 15 days posttreatment and resolved by day 30. MR imaging revealed signs highly suggestive of perianeurysmal inflammation with vasogenic edema and blood-brain barrier breakdown. The association between MR imaging inflammatory features and clinical aggravation was statistically significant. Large aneurysmal size and its proximity to surrounding brain tissue were predictive of this inflammatory reaction after flow diversion.

CONCLUSIONS

The main finding of the series is that MR imaging-defined perianeurysmal inflammation is observed with a high frequency after treatment of unruptured aneurysms with flow diverters and is, in most cases, associated with a transient clinical deterioration.

Bioluminescence in the high Arctic during the polar night

This study examines the composition and activity of the planktonic community during the polar night in the high Arctic Kongsfjord, Svalbard. Our results are the first published evidence of bioluminescence among zooplankton during the Arctic polar night. The observations were collected by a bathyphotometer detecting bioluminescence, integrated into an autonomous underwater vehicle, to determine the concentration and intensity of bioluminescent flashes as a function of time of day and depth. To further understand community dynamics and composition, plankton nets were used to collect organisms passing through the bathyphotometer along with traditional vertical net tows. Additionally, using a moored bathyphotometer closed to the sampling site, the bioluminescence potential itself was shown not to have a diurnal or circadian rhythm. Rather, our results provide evidence for a diel vertical migration of bioluminescent zooplankton that does not correspond to any externally detectable changes in illumination.

Body satisfaction during pregnancy

The current study examines how body satisfaction of pregnant women compares to that of nonpregnant women. The sample included 68 pregnant and 927 nonpregnant young women who participated in a population-based longitudinal study examining eating and weight concerns in young adults. Body satisfaction was assessed using a 10-item modified version of the Body Shape Satisfaction Scale. The longitudinal design allowed for the assessment of body satisfaction among women both prior to and during their pregnancy. Mean body satisfaction was higher in pregnant women (32.6, 95% CI: 30.7-34.5) than nonpregnant women (29.6, 95% CI: 29.1-30.1) with moderate effect size 0.32, after adjusting for body satisfaction and body mass index prior to pregnancy, indicating that pregnant women experienced a significant increase in body satisfaction from the time prior to their pregnancy (p=.003) despite weight gain. These findings have important implications for clinicians delivering weight-related messages to women during pregnancy.

Weight comments by family and significant others in young adulthood

Weight teasing is common among adolescents, but less is known about the continuation of this experience during young adulthood. The present study uses survey data from a diverse sample of 2287 young adults, who participated in a 10-year longitudinal study of weight-related issues to examine hurtful weight comments by family members or a significant other. Among young adults, 35.9% of females and 22.8% of males reported receiving hurtful weight-related comments by family members, and 21.2% of females and 23.8% of males with a significant other had received hurtful weight-related comments from this source. Hispanic and Asian young adults and overweight/obese young adults were more likely to report receiving comments than those in other groups. Weight teasing during adolescence predicted hurtful weight-related comments in young adulthood, with some differences by gender. Findings suggest that hurtful weight talk continues into young adulthood and is predicted by earlier weight teasing experiences.

Overestimation of moderate carotid stenosis assessed by both Doppler US and contrast enhanced 3D-MR angiography in the CARMEDAS study

PURPOSE

To evaluate the agreement and diagnostic accuracy of Contrast enhanced magnetic resonance angiography (CE-MRA), Doppler ultrasound (DUS) and Digital subtraction angiography (DSA) in the assessment of carotid stenosis.

METHODS

DUS, CE-MRA and DSA were performed in 56 patients included in the Carotide-angiographie par résonance magnétique-échographie-doppler-angioscanner (CARMEDAS) multicenter study with a carotid stenosis ≥ 50%. Three readers evaluated stenoses on CE-MRA and DSA (NASCET criteria). Velocities criteria were used for stenosis estimation on DUS.

RESULTS

CE-MRA had a sensitivity and specificity of 96-98% and 66-83% respectively for carotid stenoses ≥ 50% and a sensitivity and specificity of 94% and 76-84% respectively for carotid stenoses ≥ 70%. The interobserver agreement of CE-MRA was excellent, except for moderate stenoses (50-69%). DUS had a sensitivity and specificity of 88 and 75% respectively for carotid stenoses ≥ 50% and a sensitivity and specificity of 83 and 86% respectively for carotid stenoses ≥ 70%. Combined concordant CE-MRA and DUS had a sensitivity and specificity of 100 and 85-90% respectively for carotid stenoses ≥ 50% and a sensitivity and specificity of 96-100% and 80-87% respectively for carotid stenoses ≥ 70%. The positive predictive value of the association CE-MRA and DUS for carotid stenoses ≥ 70% is calculated between 77 and 82% while the negative predictive value is calculated between 97 and 100%. CE-MRA and DUS have concordant findings in 63-72%, and the overestimations cases were recorded only for carotid stenosis ≤ 69%.

CONCLUSION

Combined DUS-CE-MRA is excellent for evaluation of severe stenosis but remains debatable in moderate stenosis (50-69%) due to the risk of overestimations.