Automatic segmentation of the hippocampus for preterm neonates from early-in-life to term-equivalent age.

INTRODUCTION: The hippocampus, a medial temporal lobe structure central to learning and memory, is particularly vulnerable in preterm-born neonates. To date, segmentation of the hippocampus for preterm-born neonates has not yet been performed early-in-life (shortly after birth when clinically stable). The present study focuses on the development and validation of an automatic segmentation protocol that is based on the MAGeT-Brain (Multiple Automatically Generated Templates) algorithm to delineate the hippocampi of preterm neonates on their brain MRIs acquired at not only term-equivalent age but also early-in-life. METHODS: First, we present a three-step manual segmentation protocol to delineate the hippocampus for preterm neonates and apply this protocol on 22 early-in-life and 22 term images. These manual segmentations are considered the gold standard in assessing the automatic segmentations. MAGeT-Brain, automatic hippocampal segmentation pipeline, requires only a small number of input atlases and reduces the registration and resampling errors by employing an intermediate template library. We assess the segmentation accuracy of MAGeT-Brain in three validation studies, evaluate the hippocampal growth from early-in-life to term-equivalent age, and study the effect of preterm birth on the hippocampal volume. The first experiment thoroughly validates MAGeT-Brain segmentation in three sets of 10-fold Monte Carlo cross-validation (MCCV) analyses with 187 different groups of input atlases and templates. The second experiment segments the neonatal hippocampi on 168 early-in-life and 154 term images and evaluates the hippocampal growth rate of 125 infants from early-in-life to term-equivalent age. The third experiment analyzes the effect of gestational age (GA) at birth on the average hippocampal volume at early-in-life and term-equivalent age using linear regression. RESULTS: The final segmentations demonstrate that MAGeT-Brain consistently provides accurate segmentations in comparison to manually derived gold standards (mean Dice\u27s Kappa \u3e 0.79 and Euclidean distance CONCLUSIONS: MAGeT-Brain is capable of segmenting hippocampi accurately in preterm neonates, even at early-in-life. Hippocampal asymmetry with a larger right side is demonstrated on early-in-life images, suggesting that this phenomenon has its onset in the 3rd trimester of gestation. Hippocampal volume assessed at the time of early-in-life and term-equivalent age is linearly associated with GA at birth, whereby smaller volumes are associated with earlier birth

Factors Associated With the Provision of Hospice Care for Children

Children at end of life often lack access to hospice care at home or in a dedicated facility. The factors that may influence whether or not hospices provide pediatric care are relatively unknown

Use of a Pediatrician Toolkit to Address Parental Perception of Children's Weight Status, Nutrition, and Activity Behaviors

Communication of children’s weight status and targeted counseling by pediatricians may change parental perceptions or child dietary and physical activity (PA) behaviors

Use of a Tool to Determine Perceived Barriers to Children's Healthy Eating and Physical Activity and Relationships to Health Behaviors

This pilot investigation assesses whether barriers to children’s healthy eating and physical activity reported by parents on a newly developed brief pediatric obesity screening and counseling tool are related to healthy eating and physical activity behaviors. The sample included parents of 115 Medicaid-enrolled children in a general pediatric clinic. Of 10 barriers, 7 were statistically associated with parent-reported behaviors with odds ratios (ORs) ranging from 0.6 to 9.4. Relationships remained significant when child characteristics were controlled in the analysis. Although additional testing is needed, the tool provides clinicians with an approach to identify barriers and behaviors for targeted counseling

ACC/AHA Special Report: Clinical Practice Guideline Implementation Strategies: A Summary of Systematic Reviews by the NHLBI Implementation Science Work Group: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines

BACKGROUND: In 2008, the National Heart, Lung, and Blood Institute convened an Implementation Science Work Group to assess evidence-based strategies for effectively implementing clinical practice guidelines. This was part of a larger effort to update existing clinical practice guidelines on cholesterol, blood pressure, and overweight/obesity. OBJECTIVES: Review evidence from the published implementation science literature and identify effective or promising strategies to enhance the adoption and implementation of clinical practice guidelines. METHODS: This systematic review was conducted on 4 critical questions, each focusing on the adoption and effectiveness of 4 intervention strategies: (1) reminders, (2) educational outreach visits, (3) audit and feedback, and (4) provider incentives. A scoping review of the Rx for Change database of systematic reviews was used to identify promising guideline implementation interventions aimed at providers. Inclusion and exclusion criteria were developed a priori for each question, and the published literature was initially searched up to 2012, and then updated with a supplemental search to 2015. Two independent reviewers screened the returned citations to identify relevant reviews and rated the quality of each included review. RESULTS: Audit and feedback and educational outreach visits were generally effective in improving both process of care (15 of 21 reviews and 12 of 13 reviews, respectively) and clinical outcomes (7 of 12 reviews and 3 of 5 reviews, respectively). Provider incentives showed mixed effectiveness for improving both process of care (3 of 4 reviews) and clinical outcomes (3 reviews equally distributed between generally effective, mixed, and generally ineffective). Reminders showed mixed effectiveness for improving process of care outcomes (27 reviews with 11 mixed and 3 generally ineffective results) and were generally ineffective for clinical outcomes (18 reviews with 6 mixed and 9 generally ineffective results). Educational outreach visits (2 of 2 reviews), reminders (3 of 4 reviews), and provider incentives (1 of 1 review) were generally effective for cost reduction. Educational outreach visits (1 of 1 review) and provider incentives (1 of 1 review) were also generally effective for cost-effectiveness outcomes. Barriers to clinician adoption or adherence to guidelines included time constraints (8 reviews/overviews); limited staffing resources (2 overviews); timing (5 reviews/overviews); clinician skepticism (5 reviews/overviews); clinician knowledge of guidelines (4 reviews/overviews); and higher age of the clinician (1 overview). Facilitating factors included guideline characteristics such as format, resources, and end-user involvement (6 reviews/overviews); involving stakeholders (5 reviews/overviews); leadership support (5 reviews/overviews); scope of implementation (5 reviews/overviews); organizational culture such as multidisciplinary teams and low-baseline adherence (9 reviews/overviews); and electronic guidelines systems (3 reviews). CONCLUSION: The strategies of audit and feedback and educational outreach visits were generally effective in improving both process of care and clinical outcomes. Reminders and provider incentives showed mixed effectiveness, or were generally ineffective. No general conclusion could be reached about cost effectiveness, because of limitations in the evidence. Important gaps exist in the evidence on effectiveness of implementation interventions, especially regarding clinical outcomes, cost effectiveness and contextual issues affecting successful implementation

Bolstering Confidence in Obesity Prevention and Treatment Counseling for Resident and Community Pediatricians

Objective- To assess whether equipping resident pediatricians and community pediatricians with both training and practical tools improves their perceived confidence, ease, and frequency of obesity related counseling to patients. Methods- In 2005-2006, resident pediatricians (n = 49) and community pediatricians (n=18) received training regarding three evidence-based obesity prevention/treatment tools and responded to pre-and post-intervention questionnaires. We analyzed changes in reported mean confidence, ease, and frequency of dietary, physical activity, and weight status counseling. Results- Baseline scores of confidence, ease, and frequency of counseling were higher in community pediatricians than residents. Mean scores increased significantly in the combined group, among residents only, and trended towards improvement in the community pediatricians following the intervention. Means for "control" questions were unchanged. Conclusion- Training and tools for residents and community pediatricians improved their confidence, ease, and frequency of obesity-related counseling. Practice Implications- This study demonstrates that when feasible and appropriate tools and training were provided through a simple intervention, physicians gained confidence and ease and increased their counseling frequency. The results here suggest that widespread implementation of such educational interventions for community practitioners and practitioners in training could change the way physicians counsel patients to prevent the often frustrating problem of childhood obesity. Originally published Patient Education and Counseling, Vol. 73, No. 2, Nov 200

Reliability of Medicaid Claims Versus Medical Record Data: In a Cost Analysis of Palivizumab

Background: Palivizumab is one of the most costly paediatric medications for Medicaid and other health plans. It is uncertain whether the costs of palivizumab administration are justified in specific risk groups. Ongoing investigations of palivizumab require identification of reliable data sources. Objective: To estimate the reliability between Medicaid paid claims data and medical records documentation in a cost analysis of palivizumab. Study design: A cross-sectional study of data reliability was performed within a cost analysis study of palivizumab in a cohort of at-risk patients during the US 2002/3 respiratory syncytial virus season. Exposure classification (to palivizumab prophylaxis) was compared using Medicaid claims and medical records data. Methods: The study was performed in 28 widely dispersed paediatric medical practices serving North Carolina, USA Medicaid patients within the AccessCare/Community Care of North Carolina (CCNC) Program, an enhanced primary care case management programme. Patients were eligible if they were born between 1 March 2002 and 28 February 2003 at 32-35 weeks estimated gestational age, were enrolled in the North Carolina primary care case management Medicaid programme during the study period and were patients of the participating practices. Medicaid healthcare claims were obtained in December 2003 for services provided between October 2002 and May 2003. Medical records were abstracted by community-based case managers. Primary variables included frequency, dates and dose of palivizumab injections. The main outcomes measures were agreement in the number of palivizumab injections, dates of administration and doses of palivizumab between Medicaid paid claims and medical record data. Results: Injection frequencies matched between medical record and Medicaid claims data for only 46.2% of study participants. Congruence in injection service dates occurred between data sources for only 1% of injections. Doses were similar between data sources for 81.9% of injections. Conclusions: In Medicaid recipients receiving palivizumab injection, Medicaid claims data were inconsistent with medical records data. Use of multiple data sources and validation are recommended to identify temporal relationships between drug administration and endpoints of interest.Economic-implications, Medical-records, Palivizumab, Respiratory-syncytial-virus-infections

Examining the Impact of Resilience Strategies in Mitigating Medicine Shortages in the United Kingdom's (UK) Pharmaceutical Supply Chain (PSC)

YesPurpose Medicine shortages have a detrimental impact on stakeholders in the pharmaceutical supply chain (PSC). Existing studies suggest that building resilience strategies can mitigate the effects of these shortages. As such, this research aims to examine whether resilience strategies can reduce the impact of medicine shortages in the United Kingdom's (UK) PSC. Design/methodology/approach A sequential mixed-methods approach that involved qualitative and quantitative research enquiry was employed in this study. The data were collected using semi-structured interviews with 23 key UK PSC actors at the qualitative stage. During the quantitative phase, 106 respondents completed the survey questionnaires. The data were analysed using partial least square-structural equation modelling (PLS-SEM). Findings The results revealed that reactive and proactive elements of resilience strategies helped tackle medicine shortages. Reactive strategies increased relational issues such as behavioural uncertainty, whilst proactive strategies mitigated them. Practical implications The findings suggest that PSC managers and decision-makers can benefit from adopting structural flexibility and proactive strategies, which are cost-effective measures to tackle medicine shortages. Also engaging in strategic alliances as a proactive strategy mitigates relational issues that may arise in a complex supply chain (SC). Originality/value This study is the first to provide empirical evidence of the impact of resilience strategies in mitigating medicine shortages in the UK's PSC