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1.
Alzheimers Dement (Amst) ; 16(2): e12577, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38605995

RESUMO

INTRODUCTION: Some people with dementia develop changes in behaviour and cognition that may lead to interactions with police or the legal system. However, large, prospective case-control studies examining these behaviours are lacking. METHODS: One hundred and forty-four people with dementia and 53 controls completed the Misdemeanours and Transgressions Screener. RESULTS: Criminal risk behaviours were reported in: 65.6% of behavioural-variant frontotemporal dementia, 46.2% of right-lateralised semantic dementia, and 27.0% of Alzheimer's disease patients. In 19.1% of patients these behaviours led to contact with police or authority figures. Compared to controls, people with dementia showed higher rates of physical assault (p = 0.024), financial/professional recklessness (p = 0.009), and inappropriate behaviours (p  = 0.052). DISCUSSION: Criminal risk behaviours are common across dementia subtypes and may be one of the first clinical signs of frontotemporal dementia. Further research to understand how to balance risk minimisation with an individual's liberties as well as the inappropriate criminalisation of people with dementia is needed. Highlights: The Misdemeanours and Transgressions Screener is a new tool to assess criminal risk behaviours.Forty-seven percent of patients with dementia show criminal risk behaviour after dementia onset.Behaviours included verbal abuse, traffic violations, physical assault.New onset of criminal risk behaviours >50 years is a clinical sign for frontotemporal dementia.

2.
Dement Geriatr Cogn Dis Extra ; 13(1): 48-56, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38098956

RESUMO

Introduction: Growing research has shown the negative impact of social isolation on the health and psychological well-being of individuals with dementia and their carers. This study investigated the effectiveness of a psychosocial intervention for dementia carers during a lockdown period of the COVID-19 pandemic. Methods: Twenty-three family carers of individuals diagnosed with dementia living in the community were recruited and provided with an online psychoeducation toolkit that aims to improve health literacy, management of social and behavioural symptoms in dementia, carer social engagement, and coping skills. Carers were divided into "mild" or "moderate" groups based on the disease severity of the person with dementia they cared for. Outcome measures including distress and severity of neuropsychiatric symptoms, carer self-efficacy and burden, social network, and feelings of loneliness were assessed at baseline and 2 weeks later. Results: Carers in the moderate group reported higher levels of distress (p = 0.001) and severity (p < 0.001) of neuropsychiatric symptoms and greater carer burden (p = 0.003) than carers in the mild group. Following the intervention, both groups reported increased social networks (p = 0.001). In addition, carers in the moderate group reported significantly reduced distress for neuropsychiatric symptoms (p = 0.013), enhanced carer self-efficacy for controlling upsetting thoughts (p = 0.040), and decreased loneliness (p = 0.023). Conclusions: This study demonstrated that psychosocial interventions improve outcomes for carers of individuals with dementia, particularly those caring for individuals with greater disease severity. Findings from this study will inform the development of support services that meet the evolving needs of individuals with dementia and their carers in social isolation, during and in a post-pandemic context.

3.
J Invest Dermatol ; 143(9): 1657-1666, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37422760

RESUMO

There is growing evidence that supports a role of gut dysbiosis in the pathogenesis of psoriasis (Pso). Thus, probiotic supplementation and fecal microbiota transplantation may serve as promising preventive and therapeutic strategies for patients with Pso. One of the basic mechanisms through which the gut microbiota interacts with the host is through bacteria-derived metabolites, usually intermediate or end products produced by microbial metabolism. In this study, we provide an up-to-date review of the most recent literature on microbial-derived metabolites and highlight their roles in the immune system, with a special focus on Pso and one of its most common comorbidities, psoriatic arthritis.


Assuntos
Artrite Psoriásica , Microbioma Gastrointestinal , Psoríase , Humanos , Psoríase/terapia , Psoríase/microbiologia , Transplante de Microbiota Fecal , Disbiose/microbiologia
4.
Small ; 19(40): e2303466, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37267936

RESUMO

Void volume fraction (VVF) is a global measurement frequently used to characterize the void space of granular scaffolds, yet there is no gold standard by which to measure VVF in practice. To study the relationship  between VVF and particles of varying size, form, and composition, a library of 3D simulated scaffolds is used. Results reveal that relative to particle count, VVF is a less predictable metric across replicate scaffolds. Simulated scaffolds are used to explores the relationship between microscope magnification and VVF, and recommendations are offered for optimizing the accuracy of approximating VVF using 2D microscope images. Lastly, VVF of hydrogel granular scaffolds is measured while varying four input parameters: image quality, magnification, analysis software, and intensity threshold. Results show that VVF is highly sensitive to these parameters. Overall, random packing produces variation in VVF among granular scaffolds comprising the same particle populations. Furthermore, while VVF is used to compare the porosity of granular materials within a study, VVF is a less reliable metric across studies that use different input parameters. VVF, a global measurement, cannot describe the dimensions of porosity within granular scaffolds, and the work supports the notion that more descriptors are necessary to sufficiently characterize void space.

5.
Cutis ; 111(3): 133-136, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-37224495

Assuntos
Nádegas , Humanos
6.
J Immunol Methods ; 515: 113453, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36863695

RESUMO

A novel engineered CCL20 locked dimer (CCL20LD) is nearly identical to the naturally occurring chemokine CCL20 but blocks CCR6-mediated chemotaxis and offers a new approach to treat the diseases of psoriasis and psoriatic arthritis. Methods for quantifying CCL20LD serum levels are needed to assess pharmacokinetics parameters and evaluate drug delivery, metabolism, and toxicity. Existing ELISA kits fail to discriminate between CCL20LD and the natural chemokine, CCL20WT (the wild type monomer). Herein, we tested several available CCL20 monoclonal antibodies to be able to identify one clone that can be used both as a capture and a detection antibody (with biotin-labeling) to specifically detect CCL20LD with high specificity. After validation using recombinant proteins, the CCL20LD-selective ELISA was used to analyze blood samples from CCL20LD treated mice, demonstrating the utility of this novel assay for preclinical development of a biopharmaceutical lead compound for psoriatic disease.


Assuntos
Quimiocina CCL20 , Psoríase , Animais , Camundongos , Quimiocina CCL20/genética , Psoríase/tratamento farmacológico , Psoríase/metabolismo , Quimiotaxia , Anticorpos Monoclonais/uso terapêutico , Ensaio de Imunoadsorção Enzimática
7.
Cureus ; 15(1): e34054, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36824562

RESUMO

Background Prior quantitative studies have described the diminished health-related quality of life (HRQoL) faced by the overall mycosis fungoides (MF)/Sézary syndrome (SS) population; yet, little is known about how the disease affects HRQoL in skin of color (SOC) patients. This qualitative study sought to explore the lived experiences of SOC patients with MF/SS and gain deeper insights into the impact the disease has on various facets of HRQoL.  Methodology Interviews with SOC patients with MF/SS ≥18 were recruited from a cutaneous lymphoma clinic. A thematic analysis was performed to identify overarching themes. Results Ten patients were invited to participate from July to September 2021. One patient with SS and seven patients with MF (four in the early stage and four in the advanced stage), with a median age of 60.5 years, agreed to participate. Emerging themes included diagnostic and therapeutic delays frequently due to initial misdiagnoses with other skin conditions. Physical and functional burdens significantly hindered participants' abilities to carry out daily responsibilities and maintain employment, and impacts on physical appearance (e.g., darkened skin) led to increased self-consciousness and lack of social acceptance. Participants regarded family and faith as main sources of support in addition to developing healthy coping strategies, such as self-acceptance and adaptability. All participants reported feeling satisfied with their access to healthcare information and the quality of care received. Conclusions Our findings provide greater insights into how HRQoL is impacted across SOC patients with MF/SS, which can help raise awareness among healthcare providers and assist with creating interdisciplinary healthcare approaches to better support the needs of this population.

8.
JAMA Dermatol ; 159(2): 192-197, 2023 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-36598766

RESUMO

Importance: Cutaneous T-cell lymphoma (CTCL) is a group of rare, complex cutaneous malignant neoplasms associated with significant disease burden on patients and the health care system. Currently, the population of patients with CTCL admitted to the hospital remains largely uncharacterized and poorly understood. Objective: To characterize the clinical characteristics, course of hospitalization, and mortality outcomes of an inpatient CTCL cohort. Design, Setting, and Participants: This multicenter retrospective cohort study reviewed medical records for adult patients (age ≥18 years) with a CTCL diagnosis per National Comprehensive Cancer Network guidelines admitted for inpatient hospitalization at 5 US academic medical centers with inpatient dermatology consult services and CTCL clinics between August 2016 and August 2020. Main Outcomes and Measures: Patient demographics, clinical history and findings, hospitalization courses, and mortality outcomes. Results: A total of 79 hospitalized patients with CTCL were identified, including 52 (70.3%) men and 22 (29.7%) women, with a median (IQR) age at hospitalization of 62.9 (27-92) years. The majority of admitted patients with CTCL were White (65 patients [82.3%]), had disease classified as mycosis fungoides (48 patients [61.5%]), and had advanced-stage disease (≥IIB, 70 patients [89.7%]). Most hospitalizations were complicated by infection (45 patients [57.0%]) and required intravenous antibiotic therapy (45 patients [57.0%]). In-hospital mortality occurred in 6 patients (7.6%) and was associated with higher body mass index (36.5 vs 25.3), history of thromboembolic disease (50.0% vs 12.3%), and diagnosis of sepsis on admission (66.7% vs 20.5%). At 1-year postdischarge, 36 patients (49.3%) patients had died, and mortality was associated with history of solid organ cancers (27.8% vs 10.8%), wound care as the reason for dermatology consultation (58.3% vs 24.3%), and presence of large cell transformation (58.3% vs 22.9%). Conclusions and Relevance: The findings of this cohort study improve the understanding of hospitalized patients with CTCL and lend valuable insight into identifying factors associated with both in-hospital and long-term mortality outcomes. This refined understanding of the inpatient CTCL population provides a foundation for larger, more robust studies to identify causal risk factors associated with mortality, development of prognostic scoring systems to estimate the probability of hospital mortality. Overall, the findings may prompt physicians caring for patients with CTCL to implement preventive strategies to diminish hospitalization and improve clinical management across this unique disease spectrum.


Assuntos
Linfoma Cutâneo de Células T , Neoplasias Cutâneas , Adulto , Masculino , Humanos , Feminino , Adolescente , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Estudos Retrospectivos , Assistência ao Convalescente , Neoplasias Cutâneas/diagnóstico , Neoplasias Cutâneas/epidemiologia , Neoplasias Cutâneas/terapia , Alta do Paciente , Linfoma Cutâneo de Células T/diagnóstico , Linfoma Cutâneo de Células T/epidemiologia , Linfoma Cutâneo de Células T/terapia
9.
Cogn Affect Behav Neurosci ; 23(2): 354-370, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36417157

RESUMO

INTRODUCTION: While apathy is broadly defined as a loss of motivation, it is increasingly recognised as a multidimensional syndrome spanning executive, emotional, and initiation domains. Emotional apathy is purportedly driven by deficits in using socioemotional rewards to guide behaviour, yet the link between these symptoms and reward processing, and their common neural correlates, has not been directly examined. METHODS: Sixty-four patients (33 behavioural-variant frontotemporal dementia, 14 Alzheimer's disease, 8 semantic dementia, 6 progressive nonfluent aphasia, 3 logopenic progressive aphasia) were classified into high (HEA; n = 36) and low (LEA; n = 28) emotional apathy groups based on emotional apathy subscale scores on the Dimensional Apathy Scale. Patients and age-matched healthy controls (n = 27) performed an instrumental reward learning task where they learned to associate cues with either social or monetary outcomes. RESULTS: HEA patients showed impaired learning on both the social and monetary reward conditions, relative to LEA patients (p = 0.016) and controls (p = 0.005). Conversely, the LEA group did not differ from controls (p = 0.925). Importantly, multiple regression analyses indicated that social reward learning significantly predicted emotional apathy. Voxel-based morphometry analyses revealed that emotional apathy and social reward learning were both associated with orbitofrontal cortex, ventral striatum, and insula atrophy. DISCUSSION: Our results demonstrate a unique link between impaired social reward learning and emotional apathy in dementia and reveal a shared neurobiological basis. Greater understanding of these neurocognitive mechanisms of reward processing will help improve the identification of emotional apathy in dementia and inform the development of novel interventions to address these symptoms.


Assuntos
Doença de Alzheimer , Apatia , Demência Frontotemporal , Humanos , Emoções , Demência Frontotemporal/diagnóstico por imagem , Demência Frontotemporal/psicologia , Recompensa , Imageamento por Ressonância Magnética
10.
J Biomed Opt ; 27(8): 080902, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-36452032

RESUMO

Significance: Dermoscopes incorporate light, polarizers, and optical magnification into a handheld tool that is commonly used by dermatologists to evaluate skin findings. Diagnostic accuracy is improved when dermoscopes are used, and some major artificial intelligence (AI) projects have been accomplished using dermocopic images. Color rendering consistency and fidelity are crucial for clinical diagnostics, AI, and image processing applications. Aim: With many devices available on the market, our objective was to measure the emission spectra of various dermoscopes, compare them with other light sources, and illustrate variations in reflected colors from images of a reference sample. Approach: A spectrometer measured the spectral power distribution (SPD) produced by four dermoscope models and three alternate light sources, illustrating differences in the emission spectra. Most dermoscopes use light-emitting diodes (LEDs), which are inconsistent when compared with one another. An LED was compared with halogen, xenon-arc, and daylight sources. Images of a micro ColorChecker were acquired from several sources, and three specific colors were selected to compare in CIELAB color space. Color consistency and color fidelity measured by color rendering index (CRI) and TM-30-18 graphical vectors show variation in saturation and chroma fidelity. Results: A marked degree of variation was observed in both the emission and reflected light coming from different dermoscopes and compared with other sources. The same chromophores appeared differently depending on the light source used. Conclusions: A lack of uniform illumination resulted in inconsistent image color and likely impacted metamerism and visibility of skin chromophores in real-world settings. Artificial light in skin examinations, especially LEDs, may present challenges for the visual separation of specific colors. Attention to LEDs SPD may be important, especially as the field increases dependency on machine/computer vision.


Assuntos
Inteligência Artificial , Dermoscopia , Diagnóstico por Imagem , Pele/diagnóstico por imagem , Processamento de Imagem Assistida por Computador
11.
Cortex ; 154: 241-253, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35785566

RESUMO

Apathy is the most common and disabling non-cognitive feature of dementia, affecting up to 90% of individuals over the disease course. Despite its prevalence, the underlying mechanisms of apathy remain elusive. This study aimed to investigate whether cognitive apathy and executive functioning have a shared cognitive and neural basis, in behavioural-variant frontotemporal dementia (bvFTD) and Alzheimer's disease (AD). Seventy-one participants (31 bvFTD, 17 AD and 23 controls) were assessed on a neuropsychological battery of executive tasks including the Zoo Map Test, Modified Six Elements Test, Tower Test and verbal fluency. The Dimensional Apathy Scale (DAS) was used to quantify cognitive apathy. Principal components analysis identified a single component underpinning performance on the neuropsychological tests, with both bvFTD and AD showing significantly reduced "planning ability" compared to controls. On the DAS, 74% of bvFTD patients and 59% of AD patients showed clinically significant cognitive apathy. Importantly, linear regression revealed that lower planning ability significantly predicted increased cognitive apathy, even after controlling for cognitive impairment and disease duration. Voxel-based morphometry analyses revealed that planning ability and cognitive apathy were both associated with atrophy of the right frontal pole and orbitofrontal cortex, as well as the thalamus and putamen. From a theoretical perspective, our results reveal a shared mechanism underpinning both cognitive apathy and planning deficits in bvFTD and AD. Clinically, this knowledge will help to improve the identification of apathy in clinical syndromes and inform targeted interventions to improve independence and wellbeing for those living with dementia.


Assuntos
Doença de Alzheimer , Apatia , Demência Frontotemporal , Atrofia , Humanos , Testes Neuropsicológicos
12.
Skinmed ; 20(1): 47-56, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35435825

RESUMO

Cumulative childhood sun damage increases skin cancer risk. Considerable childhood time is spent at school, posing an ideal site for sun safety intervention. Currently, national prevalence estimates of school district-level sun safety policies are limited. We evaluated the prevalence of sun safety policies in the US school districts and correlated with district-level factors using cross-sectional data from the 2012 and 2016 School Health Policies and Practices Study. The prevalence of sun safety policies among the US school districts was infrequent. In 2016, policies to schedule outdoor activities avoiding peak sun, allowing and encouraging use of sunscreen, and encouraging the use of protective attire were required by less than 5% of districts and remained unaddressed in 50%-75% of districts. Sun safety policies remain inadequately addressed in many US school districts and may contribute to preventable childhood sun damage. Implementing sun safety interventions in schools through more robust district-level regulations may more effectively reach students, allocate resources, and monitor implementation.


Assuntos
Instituições Acadêmicas , Protetores Solares , Criança , Estudos Transversais , Política de Saúde , Humanos , Estudantes , Protetores Solares/uso terapêutico
13.
Oper Neurosurg (Hagerstown) ; 22(6): 355-363, 2022 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-35404307

RESUMO

BACKGROUND: Cerebral bypass is a valuable surgical technique in well-selected patient populations. Updated clinical guidelines and improved surgical techniques warrant a contemporary reevaluation of the complications and patency to inform clinical practice and enhance postoperative patient care. OBJECTIVE: To assess the complication rates and postoperative graft patency for the 3 most common indications for bypass surgery: moyamoya disease, intracranial atherosclerosis, and intracranial aneurysms. METHODS: Perioperative notes of 175 consecutive bypass patients at a single institution were retrospectively identified to evaluate the clinical course and complications of surgery. RESULTS: The rate of total postoperative complications between moyamoya disease (9 of 98, 9.2%), intracranial atherosclerotic disease (7 of 57, 12.3%), and intracranial aneurysm (4 of 20, 20%) was not statistically different (P = .33). Immediate postoperative bypass patency was significantly higher in moyamoya disease (90 of 96, 93.8%) and intracranial atherosclerotic disease (48 of 51, 94.1%) than in intracranial aneurysm (13 of 18, 72.2%; P = .02). Intravenous heparin administration during bypass suturing was negatively associated with immediate postoperative patency (87% heparin patency vs 99% no heparin patency; P = .02). Double-barrel bypass trended toward an increased risk of wound healing complications (2 of 13, 15.4%) compared with the single-barrel bypass technique (4 of 156, 2.6%; P = .07). CONCLUSION: Cerebral bypass surgery remains an excellent surgical treatment for moyamoya disease, intracranial atherosclerosis, and intracranial aneurysms. This study suggests bypass is safer in moyamoya disease and intracranial atherosclerosis. Additional studies to clarify the risk of single-barrel vs double-barrel bypass and intraoperative heparin-stratified complications may be beneficial.


Assuntos
Revascularização Cerebral , Aneurisma Intracraniano , Arteriosclerose Intracraniana , Doença de Moyamoya , Revascularização Cerebral/métodos , Humanos , Aneurisma Intracraniano/cirurgia , Arteriosclerose Intracraniana/cirurgia , Doença de Moyamoya/cirurgia , Estudos Retrospectivos
14.
Implement Sci ; 17(1): 24, 2022 03 12.
Artigo em Inglês | MEDLINE | ID: mdl-35279182

RESUMO

BACKGROUND: Accumulating evidence suggests that interventions to de-implement low-value services are urgently needed. While medical societies and educational campaigns such as Choosing Wisely have developed several guidelines and recommendations pertaining to low-value care, little is known about interventions that exist to de-implement low-value care in oncology settings. We conducted this review to summarize the literature on interventions to de-implement low-value care in oncology settings. METHODS: We systematically reviewed the published literature in PubMed, Embase, CINAHL Plus, and Scopus from 1 January 1990 to 4 March 2021. We screened the retrieved abstracts for eligibility against inclusion criteria and conducted a full-text review of all eligible studies on de-implementation interventions in cancer care delivery. We used the framework analysis approach to summarize included studies' key characteristics including design, type of cancer, outcome(s), objective(s), de-implementation interventions description, and determinants of the de-implementation interventions. To extract the data, pairs of authors placed text from included articles into the appropriate cells within our framework. We analyzed extracted data from each cell to describe the studies and findings of de-implementation interventions aiming to reduce low-value cancer care. RESULTS: Out of 2794 studies, 12 met our inclusion criteria. The studies covered several cancer types, including prostate cancer (n = 5), gastrointestinal cancer (n = 3), lung cancer (n = 2), breast cancer (n = 2), and hematologic cancers (n = 1). Most of the interventions (n = 10) were multifaceted. Auditing and providing feedback, having a clinical champion, educating clinicians through developing and disseminating new guidelines, and developing a decision support tool are the common components of the de-implementation interventions. Six of the de-implementation interventions were effective in reducing low-value care, five studies reported mixed results, and one study showed no difference across intervention arms. Eleven studies aimed to de-implement low-value care by changing providers' behavior, and 1 de-implementation intervention focused on changing the patients' behavior. Three studies had little risk of bias, five had moderate, and four had a high risk of bias. CONCLUSIONS: This review demonstrated a paucity of evidence in many areas of the de-implementation of low-value care including lack of studies in active de-implementation (i.e., healthcare organizations initiating de-implementation interventions purposefully aimed at reducing low-value care).


Assuntos
Cuidados de Baixo Valor , Neoplasias , Viés , Atenção à Saúde , Humanos , Masculino , Neoplasias/terapia
15.
Breast Cancer Res ; 24(1): 11, 2022 02 08.
Artigo em Inglês | MEDLINE | ID: mdl-35135604

RESUMO

PURPOSE: Estrogen-receptor (ER) and progesterone-receptor (PR) expression levels in breast cancer, which have been principally compared via binomial descriptors, can vary widely across tumors. We sought to characterize ER and PR expression levels using semi-quantitative analyses of receptor staining in germline pathogenic variant (PV) carriers of cancer predisposition genes. METHODS: We conducted a retrospective chart review of patients who underwent germline genetic testing for cancer predisposition genes at a tertiary cancer center genetics clinic. We performed comparisons of semi-quantitative ER and PR percentage staining levels across carriers and non-carriers of cancer predisposition genes. RESULTS: Breast cancers from BRCA1 PV carriers expressed significantly lower ER (15.2% vs 78.2%, p < 0.001) and lower PR (6.8% vs 41.1%, p < 0.001) staining compared to non-PV carriers. Similarly, breast cancers of BRCA2 (66.7% vs 78.2%, p = 0.005) and TP53 (50.6% vs 78.2%, p = 0.015) PV tumors also displayed moderate decreases in ER staining. Conversely, CHEK2 tumors displayed higher ER (93.1% vs 78.2%, p = 0.005) and PR (72% vs 48.8%, p = 0.001) staining when compared to non-PV carriers. We observed a wide range of dispersion across the ER and PR staining levels of the carriers and noncarriers. ER and PR ranges of dispersion of CHEK2 tumors were uniquely narrower than all other groups. CONCLUSION: The findings of our study suggest that precise expression levels of ER and PR in breast cancers can vary widely. These differences are further augmented when comparing expression staining across PV and non-PV carriers, suggesting potentially unique tumorigenesis and progression pathways influenced by germline cancer predisposition genes.


Assuntos
Neoplasias da Mama , Neoplasias da Mama/patologia , Quinase do Ponto de Checagem 2/genética , Feminino , Predisposição Genética para Doença , Células Germinativas/metabolismo , Mutação em Linhagem Germinativa , Hormônios , Humanos , Mutação , Receptores de Progesterona/genética , Receptores de Progesterona/metabolismo , Estudos Retrospectivos
16.
Sci Rep ; 12(1): 2418, 2022 02 14.
Artigo em Inglês | MEDLINE | ID: mdl-35165292

RESUMO

As a global health emergency, the rapid spread of the novel coronavirus disease (COVID-19) led to the implementation of widespread restrictions (e.g., quarantine, physical/social distancing measures). However, while these restrictions reduce the viral spread of COVID-19, they may exacerbate behavioural and cognitive symptoms in dementia patients and increase pressure on caregiving. Here, we aimed to assess the impact of COVID-19 and related restrictions on both carers and people living with dementia across the world. We conducted an international survey (Australia, Germany, Spain, and the Netherlands) to assess the impact of COVID-19 on carers and people living with dementia. People with dementia experienced worsened neuropsychiatric symptoms since the outbreak of COVID-19, most commonly, depression, apathy, delusions, anxiety, irritability, and agitation. Regression analyses revealed that limited understanding of the COVID-19 situation and not living with the carer was associated with worsened neuropsychiatric symptoms. Carers also reported a decline in their own mental health, increased stress and reduced social networks as a result of COVID-19 and related restrictions. Regression analyses revealed uncertainty about the future and loneliness were associated with worsened carer mental health. Findings from this study will inform strategies for the development of support services and compassionate protocols that meet the evolving needs of those living with dementia and their carers.


Assuntos
COVID-19/psicologia , Cuidadores/psicologia , Demência/psicologia , Saúde Mental/estatística & dados numéricos , Inquéritos e Questionários , Adulto , Idoso , Idoso de 80 Anos ou mais , Ansiedade/psicologia , Austrália , COVID-19/epidemiologia , COVID-19/virologia , Demência/terapia , Feminino , Alemanha , Humanos , Masculino , Saúde Mental/normas , Pessoa de Meia-Idade , Países Baixos , Pandemias/prevenção & controle , Quarentena/psicologia , Análise de Regressão , SARS-CoV-2/fisiologia , Espanha
18.
Lasers Surg Med ; 54(3): 384-391, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-34633691

RESUMO

OBJECTIVES: Reflectance confocal microscopy (RCM) generates scalar image data from serial depths in the skin, allowing in vivo examination of cellular features. The maximum imaging depth of RCM is approximately 250 µm, to the papillary dermis, or upper reticular dermis. Frequently, important diagnostic features are present in the dermis, hence improved visualization of deeper levels is advantageous. METHODS: Low contrast and noise in dermal images were improved by employing a combination of wavelet-based transformations and contrast-limited adaptive histogram equalization. RESULTS: Preserved details, noise reduction, increased contrast, and feature enhancement were observed in the resulting processed images. CONCLUSIONS: Complex and combined wavelet-based enhancement approaches for dermal level images yielded reconstructions of higher quality than less sophisticated histogram-based strategies. Image optimization may improve the diagnostic accuracy of RCM, especially for entities with dermal findings.


Assuntos
Neoplasias Cutâneas , Derme/diagnóstico por imagem , Epiderme , Humanos , Microscopia Confocal/métodos , Pele
19.
Int J Dermatol ; 61(3): 266-277, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33645660

RESUMO

Balloon cell melanoma (BCM) is a rare presentation of malignant melanoma characterized by large, foamy melanocytes lacking pigmentation. This is a comprehensive review of the clinical, dermoscopic, and histological features among BCM cases reported in the literature. A systematic review of all case reports and series published since 1970 was conducted via MEDLINE, Embase, and Web of Science, using "balloon cell melanoma" and synonymous search terms. Our systematic search identified 76 cases (49% male, 51% female) of BCM in the literature. The mean age at presentation was 57.81 years. Prior skin cancer, particularly melanoma (47%), accounted for 58% of pertinent medical history. Prominent clinical exam findings included raised (46%), ulcerated (73%) lesions larger than 1 cm (68%) in the lower extremities (35%). Median Breslow thickness of primary BCM cases was 2.5 mm. Hairpin vessels (75%) and structureless architecture (75%) were predominant on dermoscopy. Notable histopathology included large (47%), vacuolated (58%) cells with foamy cytoplasm (62%) and conspicuous nucleoli (27%). Positive S-100 immunohistochemistry (73%) was most frequently employed to diagnose BCM. We observed 47% primary and 53% metastatic BCM cases. Of metastatic BCMs, balloon cells in the primary lesion were unknown in 48%, devoid in 33%, and present in 20% of cases. All metastases displayed predominant balloon cell morphology. BCM may represent an advanced phase in the progression of malignant melanoma. Improved awareness of BCM characteristics among clinicians may reduce the risk of misdiagnoses.


Assuntos
Melanoma , Neoplasias Cutâneas , Dermoscopia , Feminino , Humanos , Imuno-Histoquímica , Masculino , Melanócitos
20.
Cureus ; 13(10): e18770, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34804649

RESUMO

BACKGROUND: The rapid expansion of telemedicine, including teledermatology, during the COVID-19 pandemic has required both providers and patients alike to adapt to this digital transition. However, patient attitudes towards electronically shared images with their providers are poorly understood. To address this gap, we assessed digital image sharing preferences and associated determinants in a nationally representative sample. METHODS: We analyzed pooled data from the Health Information National Trends Survey 4, Cycle 3 and 4. Digital image sharing preferences were compared by patient characteristics and beliefs via chi-square at a significance level of p<0.05, using sampling and jackknife replicate weights to develop nationally representative sample estimates and account for the complex survey design. P-values were adjusted for multiple comparisons when appropriate. RESULTS: Among 6437 adults, 53.5% reported reluctance in electronically shared images and videos with providers. Greater aversion was observed among adults aged 75 or above (70.9%), retired (67.3%), and those with lower education (65.1%), lower annual income (60.9%), limited English proficiency (63.3%), distrust in health information from doctors (75.4%), and fair or poor health (60.4%). CONCLUSION: Patient hesitancy towards digital image sharing may present challenges for teledermatology adoption. Greater efforts may be needed to address the age and socioeconomic digital divide, multilingual telemedicine tools, and patient-physician dynamics to ensure vulnerable groups receive needed teledermatologic care.

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