Choroidal vascularity index: a step towards software as a medical device

2021 ◽  
pp. bjophthalmol-2021-318782
Author(s):  
Bjorn Kaijun Betzler ◽  
Jianbin Ding ◽  
Xin Wei ◽  
Jia Min Lee ◽  
Dilraj S Grewal ◽  
...  
Keyword(s):  
Choroidal Thickness ◽  
Clinical Care ◽  
Vessel Diameter ◽  
Future Research ◽  
Disease States ◽  
Automated Algorithm ◽  
Vascular Bed ◽  
Vascular Area ◽  
Choroidal Vasculature ◽  
Potential Integration

The choroidal vascularity index (CVI) is a relatively new parameter, calculated off optical coherence tomography (OCT) images, for the quantitative evaluation of choroid vascularity. It is defined as the ratio of vascular area to the total choroidal area, presented as a percentage. The choroid is an important vascular bed, often implicated in ocular and systemic conditions. Since the introduction of CVI, multiple studies have evaluated its efficacy as a tool for disease prognostication and monitoring progression, with promising results. The CVI was born out of the need for more robust and accurate evaluations of choroidal vasculature, as prior parameters such as choroidal thickness and choroidal vessel diameter had their limitations. In this review, we summarise current literature on the CVI, explain how the CVI is derived and explore its potential integration into future research and translation into clinical care. This includes the application of CVI in various disease states, and ongoing attempts to produce an automated algorithm which can calculate CVI from OCT images.

scholarly journals New horizons in arginine metabolism, ageing and chronic disease states

2019 ◽  
Vol 48 (6) ◽  
pp. 776-782 ◽  
Author(s):  
Arduino A Mangoni ◽  
Roman N Rodionov ◽  
Mark McEvoy ◽  
Angelo Zinellu ◽  
Ciriaco Carru ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Chronic Disease ◽  
Clinical Care ◽  
Large Population ◽  
Future Research ◽  
Chronic Obstructive ◽  
Arginine Metabolism ◽  
Disease States ◽  
Health And Disease

Abstract The elucidation of the metabolic pathways of the amino acid arginine and their role in health and disease have been an intensive focus of basic and clinical research for over a century. The recent advent of robust analytical techniques for biomarker assessment in large population cohorts has allowed the investigation of the pathophysiological role of specific arginine metabolites in key chronic disease states in old age, particularly those characterised by a reduced synthesis of endothelial nitric oxide, with consequent vascular disease and atherosclerosis. Two arginine metabolites have been increasingly studied in regard to their potential role in risk stratification and in the identification of novel therapeutic targets: the methylated arginine asymmetric dimethylarginine (ADMA) and the arginine analogue homoarginine. Higher circulating concentrations of ADMA, a potent inhibitor of nitric oxide synthesis, have been shown to predict adverse cardiovascular outcomes. By contrast, there is emerging evidence that homoarginine might exert cardioprotective effects. This review highlights recent advances in the biological and clinical role of ADMA and homoarginine in cardiovascular disease and other emerging fields, particularly chronic obstructive pulmonary disease, dementia, and depression. It also discusses opportunities for future research directions with the ultimate goal of translating knowledge of arginine metabolism, and its role in health and disease, into the clinical care of older adults.

Interpersonal Psychotherapy for the Treatment of Eating Disorders

2010 ◽  
pp. 347-372 ◽  
Author(s):  
Marian Tanofsky-Kraff ◽  
Denise E. Wilfley
Keyword(s):  
Anorexia Nervosa ◽  
Clinical Care ◽  
Interpersonal Psychotherapy ◽  
Future Research ◽  
Cognitive Behavior ◽  
Research Directions ◽  
Routine Clinical Care ◽  
Interpersonal Factors ◽  
Future Research Directions

Interpersonal psychotherapy (IPT) is a focused, time-limited treatment that targets interpersonal problem(s) associated with the onset and/or maintenance of EDs. IPT is supported by substantial empirical evidence documenting the role of interpersonal factors in the onset and maintenance of EDs. IPT is a viable alternative to cognitive behavior therapy for the treatment of bulimia nervosa and binge eating disorder. The effectiveness of IPT for the treatment of anorexia nervosa requires further investigation. The utility of IPT for the prevention of obesity is currently being explored. Future research directions include enhancing the delivery of IPT for EDs, increasing the availability of IPT in routine clinical care settings, exploring IPT adolescent and parent–child adaptations, and developing IPT for the prevention of eating and weight-related problems that may promote full-syndrome EDs or obesity.

scholarly journals Optimising neurodevelopmental and psychosocial outcomes for survivors with CHD: a research agenda for the next decade

2021 ◽  
pp. 1-3
Author(s):  
Erica Sood ◽  
Jeffrey P Jacobs ◽  
Bradley S Marino
Keyword(s):  
Health Disparities ◽  
Outcomes Research ◽  
Research Agenda ◽  
Clinical Care ◽  
Neurodevelopmental Outcome ◽  
Psychosocial Outcomes ◽  
The United States ◽  
Future Research ◽  
Neurodevelopmental Outcomes ◽  
Working Groups

Abstract Neurodevelopmental and psychosocial impairments negatively impact health-related quality of life for survivors with CHD and complicate the transition to independent adulthood. Risk for neurodevelopmental and psychosocial impairments is influenced by a complex interplay among genetic, foetal, surgical, perioperative, family, and social factors, requiring a multi-pronged approach to neuroprotection and intervention. To ensure future research can ultimately reduce the burden of CHD for individuals, families, and society, the most pressing issues in cardiac neurodevelopment requiring scientific investigation must be identified. Through funding from an R13 Grant from the National Heart, Lung, and Blood Institute of the National Institutes of Health of the United States of America, the Cardiac Neurodevelopmental Outcome Collaborative convened a two-day meeting of international experts in cardiac neurodevelopmental and psychosocial research, clinical care, and health disparities, including patient and family stakeholders, to define the cardiac neurodevelopmental and psychosocial outcomes research agenda for the next decade. Seven multidisciplinary working groups were formed to address key domains crucial to the advancement of cardiac neurodevelopmental and psychosocial outcomes research: 1) Foetal Brain Development and Neuroprotection, 2) Surgical/Perioperative Neuroprotection and Neurodevelopment, 3) Characterization of Neurodevelopmental and Psychological Outcomes, 4) Neurodevelopmental and Psychosocial Intervention, 5) Parent Mental Health and Family Functioning, 6) Neurodevelopmental Education, Outreach and Advocacy, and 7) Health Disparities and Neurodevelopmental Outcomes. Working groups identified significant gaps in knowledge and critical questions that must be answered to further knowledge, policy, care, and outcomes. The development of a research agenda in cardiac neurodevelopmental and psychosocial outcomes is critical for informing collaborative initiatives and allocation of funding for research to scientific inquiries of highest value to key stakeholders.

scholarly journals Scoping review protocol: bladder cancer in Nigeria: what are the gaps in clinical care and research?

BMJ Open ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. e041894
Author(s):  
Joyce Kibaru ◽  
Pinky Kotecha ◽  
Abdulkarim Muhammad Iya ◽  
Beth Russell ◽  
Muzzammil Abdullahi ◽  
...  
Keyword(s):  
Bladder Cancer ◽  
Scoping Review ◽  
Low Income ◽  
Clinical Care ◽  
Grey Literature ◽  
Case Series ◽  
Cochrane Library ◽  
Future Research ◽  
Scoping Reviews ◽  
Local Risk

IntroductionBladder cancer (BC) is the 10th common cancer worldwide and ranks seventh in Nigeria. This scoping review aims to identify the gaps in clinical care and research of BC in Nigeria as part of the development of a larger national research programme aiming to improve outcomes and care of BC.Methods and analysisThis review will be conducted according to Arksey and O’Malley scoping review methodology framework. The following electronic databases will be searched: Medline (using the PubMed interface), Ovid Gateway (Embase and Ovid), Cochrane library and Open Grey literature. Two independent reviewers will screen titles and abstracts and subsequently screen full-text studies for inclusion, any lack of consensus will be discussed with a third reviewer. Any study providing insight into the epidemiology or treatment pathway of BC (RCTs, observations, case series, policy paper) will be included. A data chart will be used to extract relevant data from the included studies. Results will be reported according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for scoping reviews. A consultation process will be carried out with a multidisciplinary team of Nigerian healthcare professionals, patients and scientists.Ethics and disseminationThe results will be disseminated through peer-reviewed publications. By highlighting the key gaps in the literature, this review can provide direction for future research and clinical guidelines in Nigeria (and other low-income and middle-income countries), where BC is more prevalent due to local risk factors and healthcare settings.

scholarly journals EyeHealer: A large-scale anterior eye segment dataset with eye structure and lesion annotations

2021 ◽  
Author(s):  
Wenjia Cai ◽  
Jie Xu ◽  
Ke Wang ◽  
Xiaohong Liu ◽  
Wenqin Xu ◽  
...  
Keyword(s):  
Deep Learning ◽  
Large Scale ◽  
Image Annotation ◽  
Clinical Care ◽  
Significant Proportion ◽  
Anterior Segment ◽  
Future Research ◽  
Learning Models ◽  
Anterior Eye Segment ◽  
Segmentation Models

Abstract Anterior segment eye diseases account for a significant proportion of presentations to eye clinics worldwide, including diseases associated with corneal pathologies, anterior chamber abnormalities (e.g. blood or inflammation) and lens diseases. The construction of an automatic tool for the segmentation of anterior segment eye lesions will greatly improve the efficiency of clinical care. With research on artificial intelligence progressing in recent years, deep learning models have shown their superiority in image classification and segmentation. The training and evaluation of deep learning models should be based on a large amount of data annotated with expertise, however, such data are relatively scarce in the domain of medicine. Herein, the authors developed a new medical image annotation system, called EyeHealer. It is a large-scale anterior eye segment dataset with both eye structures and lesions annotated at the pixel level. Comprehensive experiments were conducted to verify its performance in disease classification and eye lesion segmentation. The results showed that semantic segmentation models outperformed medical segmentation models. This paper describes the establishment of the system for automated classification and segmentation tasks. The dataset will be made publicly available to encourage future research in this area.

scholarly journals Mechanical challenges and cytoskeletal impairments in focal segmental glomerulosclerosis

2018 ◽  
Vol 314 (5) ◽  
pp. F921-F925 ◽  
Author(s):  
Di Feng ◽  
Clark DuMontier ◽  
Martin R. Pollak
Keyword(s):  
Blood Flow ◽  
Focal Segmental Glomerulosclerosis ◽  
Kidney Injury ◽  
Future Research ◽  
Disease States ◽  
Filtration Barrier ◽  
Segmental Glomerulosclerosis ◽  
The Face ◽  
Foot Process ◽  
Future Research Directions

Focal segmental glomerulosclerosis (FSGS) is a histologically defined form of kidney injury typically mediated by podocyte dysfunction. Podocytes rely on their intricate actin-based cytoskeleton to maintain the glomerular filtration barrier in the face of mechanical challenges resulting from pulsatile blood flow and filtration of this blood flow. This review summarizes the mechanical challenges faced by podocytes in the form of stretch and shear stress, both of which may play a role in the progression of podocyte dysfunction and detachment. It also reviews how podocytes respond to these mechanical challenges in dynamic fashion through rearranging their cytoskeleton, triggering various biochemical pathways, and, in some disease states, altering their morphology in the form of foot process effacement. Furthermore, this review highlights the growing body of evidence identifying several mutations of important cytoskeleton proteins as causes of FSGS. Lastly, it synthesizes the above evidence to show that a better understanding of how these mutations leave podocytes vulnerable to the mechanical challenges they face is essential to better understanding the mechanisms by which they lead to disease. The review concludes with future research directions to fill this gap and some novel techniques with which to pursue these directions.

scholarly journals Virtual Body Ownership Illusions for Mental Health: A Narrative Review

2021 ◽  
Vol 10 (1) ◽  
pp. 139
Author(s):  
Marta Matamala-Gomez ◽  
Antonella Maselli ◽  
Clelia Malighetti ◽  
Olivia Realdon ◽  
Fabrizia Mantovani ◽  
...  
Keyword(s):  
Mental Health ◽  
Clinical Care ◽  
Well Being ◽  
Narrative Review ◽  
Future Research ◽  
Body Ownership ◽  
Surrounding Environment ◽  
Wide Range ◽  
Clinical Conditions ◽  
Virtual Body

Over the last 20 years, virtual reality (VR) has been widely used to promote mental health in populations presenting different clinical conditions. Mental health does not refer only to the absence of psychiatric disorders but to the absence of a wide range of clinical conditions that influence people’s general and social well-being such as chronic pain, neurological disorders that lead to motor o perceptual impairments, psychological disorders that alter behaviour and social cognition, or physical conditions like eating disorders or present in amputees. It is known that an accurate perception of oneself and of the surrounding environment are both key elements to enjoy mental health and well-being, and that both can be distorted in patients suffering from the clinical conditions mentioned above. In the past few years, multiple studies have shown the effectiveness of VR to modulate such perceptual distortions of oneself and of the surrounding environment through virtual body ownership illusions. This narrative review aims to review clinical studies that have explored the manipulation of embodied virtual bodies in VR for improving mental health, and to discuss the current state of the art and the challenges for future research in the context of clinical care.

scholarly journals Change In Retinal Vessel Diameter And Choroidal Thickness In Patients With Severe COVID-19

2021 ◽  
pp. 102674
Author(s):  
Medine Gündoğan ◽  
Esra Vural ◽  
Nurettin Bayram ◽  
Orhan Altunel ◽  
Fatih Gündoğan ◽  
...  
Keyword(s):  
Choroidal Thickness ◽  
Retinal Vessel ◽  
Vessel Diameter ◽  
Retinal Vessel Diameter

scholarly journals The “Preparation for Shared Decision-Making” Tool for Women With Advanced Breast Cancer: Qualitative Validation Study

10.2196/16511 ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. e16511
Author(s):  
Domitilla Masi ◽  
Amalia Elvira Gomez-Rexrode ◽  
Rina Bardin ◽  
Joshua Seidman
Keyword(s):  
Breast Cancer ◽  
Decision Making ◽  
Advanced Breast Cancer ◽  
Shared Decision Making ◽  
Validation Study ◽  
Clinical Care ◽  
Advanced Breast ◽  
Future Research ◽  
Shared Decision ◽  
Clinical Workflow

Background The range of decisions and considerations that women with advanced breast cancer (ABC) face can be overwhelming and difficult to manage. Research shows that most patients prefer a shared decision-making (SDM) approach as it provides them with the opportunity to be actively involved in their treatment decisions. The current engagement of these patients in their clinical decisions is suboptimal. Moreover, implementing SDM into routine clinical care can be challenging as patients may not always feel adequately prepared or may not expect to be involved in the decision-making process. Objective Avalere Health developed the Preparation for Shared Decision-Making (PFSDM) tool to help patients with ABC feel prepared to communicate with their clinicians and engage in decision making aligned with their preferences. The goal of this study was to validate the tool for its acceptability and usability among this patient population. Methods We interviewed a diverse group of women with ABC (N=30). Interviews were audiorecorded, transcribed, and double coded by using NVivo. We assessed 8 themes to understand the acceptability and usability of the tool. Results Interviewees expressed that the tool was acceptable for preparing patients for decision making and would be useful for helping patients know what to expect in their care journey. Interviewees also provided useful comments to improve the tool. Conclusions This validation study confirms the acceptability and usability of the PFSDM tool for women with ABC. Future research should assess the feasibility of the tool’s implementation in the clinical workflow and its impact on patient outcomes.

Development of an Abstraction Tool to Assess Palliative Care Components

2021 ◽  
pp. 104990912110617
Author(s):  
Meredith A. MacMartin ◽  
Amber E. Barnato
Keyword(s):  
Palliative Care ◽  
Qualitative Content Analysis ◽  
Medical Center ◽  
Clinical Care ◽  
Academic Medical Center ◽  
Physical Symptoms ◽  
Future Research ◽  
Clinical Documentation ◽  
Cohen’S Kappa ◽  
Cohen's Kappa

Background: Little is known regarding the fidelity of delivery of guideline-recommended components of palliative care in “real world” encounters. Objective: To develop a qualitative coding framework to identify components of clinical palliative care in clinical documentation across care settings. Design: Retrospective review of palliative care clinical documentation from medical providers, with directed qualitative content analysis to identify components of clinical care documented. Setting/Subjects: Purposively sampled deceased patients seen by palliative care at a US academic medical center between 7/1/2011–7/1/2018. Main Outcomes and Measures: The outcome of this work is a coding framework for use in future research. We assessed the robustness of the framework using Cohen’s kappa. Results: We reviewed sixty-two encounters from twenty-six patients. We identified 7 major themes in documentation: (1) addressing physical symptoms, (2) addressing psychological symptoms, (3) establishing illness understanding, (4) supporting decision making, (5) end-of-life planning, (6) understanding psychosocial context, and (7) care coordination. Interrater reliability varied widely between components, with Cohen’s kappa ranging from −.51 to 1. Conclusions: This pilot study provides a coding framework to measure documentation of clinical palliative care components. Several components could not be reliably identified using this framework, suggesting the need for additional measurement strategies.

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