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1.
BMC Psychiatry ; 23(1): 842, 2023 11 15.
Artigo em Inglês | MEDLINE | ID: mdl-37968619

RESUMO

BACKGROUND: A substantial proportion of people with bipolar disorder (BD) experience persistent cognitive difficulties associated with impairments in psychosocial functioning and a poorer disorder course. Emerging evidence suggests that cognitive remediation (CR), a psychological intervention with established efficacy in people with schizophrenia, can also benefit people with BD. Following a proof-of-concept trial showing that CR is feasible and potentially beneficial for people with BD, we are conducting an adequately powered trial in euthymic people with BD to 1) determine whether an individual, therapist-supported, computerised CR can reduce cognitive difficulties and improve functional outcomes; and 2) explore how CR exerts its effects. METHODS: CRiB2 is a two-arm, assessor-blind, multi-site, randomised controlled trial (RCT) comparing CR to treatment-as-usual (TAU). Participants are people with a diagnosis of BD, aged between 18 and 65, with no neurological or current substance use disorder, and currently euthymic. 250 participants will be recruited through primary, secondary, tertiary care, and the community. Participants will be block-randomised (1:1 ratio, stratified by site) to continue with their usual care (TAU) or receive a 12-week course of therapy and usual care (CR + TAU). The intervention comprises one-on-one CR sessions with a therapist supplemented with independent cognitive training for 30-40 h in total. Outcomes will be assessed at 13- and 25-weeks post-randomisation. Efficacy will be examined by intention-to-treat analyses estimating between-group differences in primary (i.e., psychosocial functioning at week 25 measured with the Functional Assessment Short Test) and secondary outcomes (i.e., measures of cognition, mood, patient-defined goals, and quality of life). Global cognition, metacognitive skills, affect fluctuation, and salivary cortisol levels will be evaluated as putative mechanisms of CR through mediation models. DISCUSSION: This study will provide a robust evaluation of efficacy of CR in people with BD and examine the putative mechanisms by which this therapy works. The findings will contribute to determining the clinical utility of CR and potential mechanisms of action. TRIAL REGISTRATION: Cognitive Remediation in Bipolar 2 (CRiB2): ISRCTN registry: https://www.isrctn.com/ISRCTN10362331 . Registered 04 May 2022. Overall trial status: Ongoing; Recruitment status: Recruiting.


Assuntos
Transtorno Bipolar , Terapia Cognitivo-Comportamental , Remediação Cognitiva , Humanos , Adolescente , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Idoso , Transtorno Bipolar/terapia , Transtorno Bipolar/psicologia , Terapia Cognitivo-Comportamental/métodos , Afeto , Cognição , Resultado do Tratamento , Ensaios Clínicos Controlados Aleatórios como Assunto
2.
Transl Vis Sci Technol ; 12(7): 10, 2023 07 03.
Artigo em Inglês | MEDLINE | ID: mdl-37428131

RESUMO

Purpose: To examine deep learning (DL)-based methods for accurate segmentation of geographic atrophy (GA) lesions using fundus autofluorescence (FAF) and near-infrared (NIR) images. Methods: This retrospective analysis utilized imaging data from study eyes of patients enrolled in Proxima A and B (NCT02479386; NCT02399072) natural history studies of GA. Two multimodal DL networks (UNet and YNet) were used to automatically segment GA lesions on FAF; segmentation accuracy was compared with annotations by experienced graders. The training data set comprised 940 image pairs (FAF and NIR) from 183 patients in Proxima B; the test data set comprised 497 image pairs from 154 patients in Proxima A. Dice coefficient scores, Bland-Altman plots, and Pearson correlation coefficient (r) were used to assess performance. Results: On the test set, Dice scores for the DL network to grader comparison ranged from 0.89 to 0.92 for screening visit; Dice score between graders was 0.94. GA lesion area correlations (r) for YNet versus grader, UNet versus grader, and between graders were 0.981, 0.959, and 0.995, respectively. Longitudinal GA lesion area enlargement correlations (r) for screening to 12 months (n = 53) were lower (0.741, 0.622, and 0.890, respectively) compared with the cross-sectional results at screening. Longitudinal correlations (r) from screening to 6 months (n = 77) were even lower (0.294, 0.248, and 0.686, respectively). Conclusions: Multimodal DL networks to segment GA lesions can produce accurate results comparable with expert graders. Translational Relevance: DL-based tools may support efficient and individualized assessment of patients with GA in clinical research and practice.


Assuntos
Aprendizado Profundo , Atrofia Geográfica , Humanos , Estudos Transversais , Fundo de Olho , Atrofia Geográfica/diagnóstico por imagem , Estudos Retrospectivos , Estudos Clínicos como Assunto
3.
Ophthalmol Retina ; 7(3): 243-252, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36038116

RESUMO

OBJECTIVE: To develop deep learning models for annualized geographic atrophy (GA) growth rate prediction using fundus autofluorescence (FAF) images and spectral-domain OCT volumes from baseline visits, which can be used for prognostic covariate adjustment to increase power of clinical trials. DESIGN: This retrospective analysis estimated GA growth rate as the slope of a linear fit on all available measurements of lesion area over a 2-year period. Three multitask deep learning models-FAF-only, OCT-only, and multimodal (FAF and OCT)-were developed to predict concurrent GA area and annualized growth rate. PARTICIPANTS: Patients were from prospective and observational lampalizumab clinical trials. METHODS: The 3 models were trained on the development data set, tested on the holdout set, and further evaluated on the independent test sets. Baseline FAF images and OCT volumes from study eyes of patients with bilateral GA (NCT02247479; NCT02247531; and NCT02479386) were split into development (1279 patients/eyes) and holdout (443 patients/eyes) sets. Baseline FAF images from study eyes of NCT01229215 (106 patients/eyes) and NCT02399072 (169 patients/eyes) were used as independent test sets. MAIN OUTCOME MEASURES: Model performance was evaluated using squared Pearson correlation coefficient (r2) between observed and predicted lesion areas/growth rates. Confidence intervals were calculated by bootstrap resampling (B = 10 000). RESULTS: On the holdout data set, r2 (95% confidence interval) of the FAF-only, OCT-only, and multimodal models for GA lesion area prediction was 0.96 (0.95-0.97), 0.91 (0.87-0.95), and 0.94 (0.92-0.96), respectively, and for GA growth rate prediction was 0.48 (0.41-0.55), 0.36 (0.29-0.43), and 0.47 (0.40-0.54), respectively. On the 2 independent test sets, r2 of the FAF-only model for GA lesion area was 0.98 (0.97-0.99) and 0.95 (0.93-0.96), and for GA growth rate was 0.65 (0.52-0.75) and 0.47 (0.34-0.60). CONCLUSIONS: We show the feasibility of using baseline FAF images and OCT volumes to predict individual GA area and growth rates using a multitask deep learning approach. The deep learning-based growth rate predictions could be used for covariate adjustment to increase power of clinical trials. FINANCIAL DISCLOSURE(S): Proprietary or commercial disclosure may be found after the references.


Assuntos
Aprendizado Profundo , Atrofia Geográfica , Humanos , Estudos Prospectivos , Estudos Retrospectivos , Tomografia de Coerência Óptica/métodos , Angiofluoresceinografia/métodos , Imagem Multimodal
4.
Front Psychol ; 13: 841932, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35936292

RESUMO

Background: Compassion focused therapy (CFT) is an evolutionary informed, biopsychosocial approach to mental health problems and therapy. It suggests that evolved motives (e.g., for caring, cooperating, competing) are major sources for the organisation of psychophysiological processes which underpin mental health problems. Hence, evolved motives can be targets for psychotherapy. People with certain types of depression are psychophysiologically orientated towards social competition and concerned with social status and social rank. These can give rise to down rank-focused forms of social comparison, sense of inferiority, worthlessness, lowered confidence, submissive behaviour, shame proneness and self-criticism. People with bipolar disorders also experience elevated aspects of competitiveness and up rank status evaluation. These shift processing to a sense of superiority, elevated confidence, energised behaviour, positive affect and social dominance. This is the first study to explore the feasibility of a 12 module CFT group, tailored to helping people with a diagnosis of bipolar disorder understand the impact of evolved competitive, status-regulating motivation on their mental states and the value of cultivating caring and compassion motives and their psychophysiological regulators. Methods: Six participants with a history of bipolar disorder took part in a CFT group consisting of 12 modules (over 25 sessions) as co-collaborators to explore their personal experiences of CFT and potential processes of change. Assessment of change was measured via self-report, heart rate variability (HRV) and focus groups over three time points. Results: Although changes in self-report scales between participants and across time were uneven, four of the six participants consistently showed improvements across the majority of self-report measures. Heart rate variability measures revealed significant improvement over the course of the therapy. Qualitative data from three focus groups revealed participants found CFT gave them helpful insight into: how evolution has given rise to a number of difficult problems for emotion regulation (called tricky brain) which is not one's fault; an evolutionary understanding of the nature of bipolar disorders; development of a compassionate mind and practices of compassion focused visualisations, styles of thinking and behaviours; addressing issues of self-criticism; and building a sense of a compassionate identity as a means of coping with life difficulties. These impacted their emotional regulation and social relationships. Conclusion: Although small, the study provides evidence of feasibility, acceptability and engagement with CFT. Focus group analysis revealed that participants were able to switch from competitive focused to compassion focused processing with consequent improvements in mental states and social behaviour. Participants indicated a journey over time from 'intellectually' understanding the process of building a compassionate mind to experiencing a more embodied sense of compassion that had significant impacts on their orientation to (and working with) the psychophysiological processes of bipolar disorder.

5.
Open Forum Infect Dis ; 9(2): ofab630, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-35106315

RESUMO

BACKGROUND: MHAA4549A, a human monoclonal antibody targeting the influenza A hemagglutinin stalk, neutralizes influenza A virus in animal and human volunteer challenge studies. We investigated the safety and tolerability, efficacy, and pharmacokinetics of MHAA4549A in outpatients with acute, uncomplicated influenza A infection. METHODS: This was a phase 2, randomized, double-blind, placebo-controlled trial of single intravenous (IV) doses of 3600 mg or 8400 mg of MHAA4549A or IV placebo in adult outpatients testing positive for influenza A. Patients were enrolled across 35 sites in 6 countries. Randomization and dosing occurred within ≤72 hours of symptom onset; the study duration was 14 weeks. The primary end point was the nature and frequency of adverse events (AEs). Secondary end points included median time to alleviation of all influenza symptoms, effects on nasopharyngeal viral load and duration of viral shedding, and MHAA4549A serum pharmacokinetics. RESULTS: Of 125 randomized patients, 124 received study treatment, with 99 confirmed positive for influenza A by central testing. The frequency of AEs between the MHAA4549A and placebo groups was similar; nausea was most common (8 patients; 6.5%). MHAA4549A serum exposure was confirmed in all MHAA4549A-treated patients and was dose-proportional. No hospitalizations or deaths occurred. Between the MHAA4549A and placebo groups, no statistically significant differences occurred in the median time to alleviation of all symptoms, nasopharyngeal viral load, or duration of viral shedding. CONCLUSIONS: While MHAA4549A was safe and well tolerated with confirmed exposure, the antibody did not improve clinical outcomes in patients with acute uncomplicated influenza A infection.

6.
J Intensive Care Soc ; 23(4): 398-406, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-36751359

RESUMO

Background: Guidance in COVID-19 respiratory failure has favoured early intubation, with concerns over the use of CPAP. We adopted early CPAP and self-proning, and evaluated the safety and efficacy of this approach. Methods: This retrospective observational study included all patients with a positive COVID-19 PCR, and others with high clinical suspicion. Our protocol advised early CPAP and self-proning for severe cases, aiming to prevent rather than respond to deterioration. CPAP was provided outside critical care by ward staff supported by physiotherapists and an intensive critical care outreach program. Data were analysed descriptively and compared against a large UK cohort (ISARIC). Results: 559 patients admitted before 1 May 2020 were included. 376 were discharged alive, and 183 died. 165 patients (29.5%) received CPAP, 40 (7.2%) were admitted to critical care and 28 (5.0%) were ventilated. Hospital mortality was 32.7%, and 50% for critical care. Following CPAP, 62% of patients with S:F or P:F ratios indicating moderate or severe ARDS, who were candidates for escalation, avoided intubation. Figures for critical care admission, intubation and hospital mortality are lower than ISARIC, whilst critical care mortality is similar. Following ISARIC proportions we would have admitted 92 patients to critical care and intubated 55. Using the described protocol, we intubated 28 patients from 40 admissions, and remained within our expanded critical care capacity. Conclusion: Bradford's protocol produced good results despite our population having high levels of co-morbidity and ethnicities associated with poor outcomes. In particular we avoided overloading critical care capacity. We advocate this approach as both effective and safe.

7.
Front Psychol ; 12: 732182, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34925140

RESUMO

The importance of working memory (WM) in reading and mathematics performance has been widely studied, with recent research examining the components of WM (i.e., storage and processing) and their roles in these educational outcomes. However, the differing relationships between these abilities and the foundational skills involved in the development of reading and mathematics have received less attention. Additionally, the separation of verbal, visual and spatial storage and processing and subsequent links with foundational skills and downstream reading and mathematics has not been widely examined. The current study investigated the separate contributions of processing and storage from verbal, visual and spatial tasks to reading and mathematics, whilst considering influences on the underlying skills of verbal comprehension and counting, respectively. Ninety-two children aged 7- to 8-years were assessed. It was found that verbal comprehension (with some caveats) was predicted by verbal storage and reading was predicted by verbal and spatial storage. Counting was predicted by visual processing and storage, whilst mathematics was related to verbal and spatial storage. We argue that resources for tasks relying on external representations of stimuli related mainly to storage, and were largely verbal and spatial in nature. When a task required internal representation, there was a draw on visual processing and storage abilities. Findings suggest a possible meaningful separability of types of processing. Further investigation of this could lead to the development of an enhanced WM model, which might better inform interventions and reasonable adjustments for children who struggle with reading and mathematics due to WM deficits.

8.
Curr Opin Ophthalmol ; 32(5): 389-396, 2021 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-34265783

RESUMO

PURPOSE OF REVIEW: Predicting treatment response and optimizing treatment regimen in patients with neovascular age-related macular degeneration (nAMD) remains challenging. Artificial intelligence-based tools have the potential to increase confidence in clinical development of new therapeutics, facilitate individual prognostic predictions, and ultimately inform treatment decisions in clinical practice. RECENT FINDINGS: To date, most advances in applying artificial intelligence to nAMD have focused on facilitating image analysis, particularly for automated segmentation, extraction, and quantification of imaging-based features from optical coherence tomography (OCT) images. No studies in our literature search evaluated whether artificial intelligence could predict the treatment regimen required for an optimal visual response for an individual patient. Challenges identified for developing artificial intelligence-based models for nAMD include the limited number of large datasets with high-quality OCT data, limiting the patient populations included in model development; lack of counterfactual data to inform how individual patients may have fared with an alternative treatment strategy; and absence of OCT data standards, impairing the development of models usable across devices. SUMMARY: Artificial intelligence has the potential to enable powerful prognostic tools for a complex nAMD treatment landscape; however, additional work remains before these tools are applicable to informing treatment decisions for nAMD in clinical practice.


Assuntos
Inteligência Artificial , Degeneração Macular , Inibidores da Angiogênese/uso terapêutico , Simulação por Computador , Angiofluoresceinografia , Humanos , Degeneração Macular/diagnóstico , Degeneração Macular/diagnóstico por imagem , Degeneração Macular/tratamento farmacológico , Neovascularização Patológica/diagnóstico , Neovascularização Patológica/diagnóstico por imagem , Neovascularização Patológica/tratamento farmacológico , Prognóstico , Receptores de Fatores de Crescimento do Endotélio Vascular/antagonistas & inibidores , Tomografia de Coerência Óptica , Fator A de Crescimento do Endotélio Vascular/antagonistas & inibidores , Degeneração Macular Exsudativa/diagnóstico , Degeneração Macular Exsudativa/diagnóstico por imagem , Degeneração Macular Exsudativa/tratamento farmacológico
9.
J Pediatr Pharmacol Ther ; 26(4): 379-383, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34035683

RESUMO

OBJECTIVE: This study aims to use and evaluate the Nephrotoxic Injury Negated by Just-in-time Action (NINJA) program in hospitalized patients with cystic fibrosis (CF) at Children's Healthcare of Atlanta. METHODS: This was a single-center study evaluating patients with CF who were hospitalized and admitted to the pulmonary service 4 months pre- and post-NINJA implementation. Postimplementation patients with high nephrotoxic medication (NTMx) exposure were identified using an electronic reporting tool that triggered the pharmacist to alert the medical team and recommend Monday/Wednesday/Friday serum creatinine (SCr) monitoring. High NTMx exposure was defined as 3 or more NTMxs given concurrently, or at least 3 consecutive days of IV aminoglycosides or vancomycin. Outcomes assessed were rate of SCr monitoring, NTMx exposure, and days of acute kidney injury (AKI) pre- and post-NINJA implementation. RESULTS: A total of 19 patients and 25 high-NTMx exposures were identified both pre- and post-NINJA implementation. The SCr monitoring increased from 13% to 50% of NTMx exposure days in the pre- versus post-NINJA time frame. More NTMx exposure days occurred in the post-NINJA time frame, from 250 exposure days per 1000 patient days pre-NINJA to 521 post-NINJA. An increased incidence of AKI events and AKI days were noted post-implementation; however, these differences were not significantly different between the 2 groups. CONCLUSIONS: Increased SCr monitoring for patients with NTMx exposure using NINJA uncovered more episodes of AKI. Increased prevalence of NTMx use was associated with increased rates of AKI. Increased SCr monitoring as a result of NINJA implementation may allow for earlier detection of AKI.

10.
Dyslexia ; 27(2): 153-167, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33594786

RESUMO

People with dyslexia have been found to prefer spatial over verbal strategies when performing word-based syllogistic reasoning tasks that require self-generated responses. The current research investigated whether this was also the case for pictorially based syllogisms, when responses were required to either concrete or abstract stimuli, and when multiple-choice answers were presented. Adults with and without dyslexia, matched for non-verbal ability, were presented with sets of isomorphic reasoning problems in which the stimuli were either concrete words, abstract words, concrete shapes or abstract pictograms. As expected, there was no group difference in reasoning accuracy. Unlike previous findings, the adults with dyslexia preferred to use a mixed verbal and spatial strategy and performed better with this strategy, while the individuals without dyslexia preferred a verbal strategy and performed more successfully when employing this strategy. The provision of answer options to facilitate strategic change in individuals with dyslexia is discussed.


Assuntos
Dislexia/fisiopatologia , Idioma , Resolução de Problemas , Adulto , Cognição , Feminino , Humanos , Masculino , Fonética , Adulto Jovem
11.
J Clin Pharmacol ; 60(11): 1509-1518, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32621543

RESUMO

MHAA4549A is a human anti-influenza A monoclonal antibody developed to treat influenza A. We report MHAA4549A serum, nasopharyngeal, and tracheal aspirate pharmacokinetics from a phase 2b study in hospitalized patients with severe influenza A. Patients were randomized 1:1:1 into 3 groups receiving single intravenous doses of 3600 mg (n = 55) or 8400 mg (n = 47) MHAA4549A or placebo (n = 56). Patients also received oral oseltamivir twice daily for ≥5 days. Serum, nasopharyngeal, and tracheal aspirate pharmacokinetic samples were collected on days 1-60 from MHAA4549A-treated groups. Day 5 plasma samples from all groups were collected for assessing the pharmacokinetics of oseltamivir and its active metabolite, oseltamivir carboxylate. Noncompartmental pharmacokinetic analysis was performed using Phoenix WinNonlin. Data were collected during a preplanned interim analysis that became final when the trial terminated because of a lack of efficacy. Serum MHAA4549A concentrations were dose-proportional and biphasic. Mean MHAA4549A clearance was 288-350 mL/day, and mean half-life was 17.8-19.0 days. Nasopharyngeal MHAA4549A concentrations were non-dose-proportional. We detected MHAA4549A in tracheal aspirate samples, but intersubject variability was high. MHAA4549A serum and nasopharyngeal exposures were confirmed in all MHAA4549A-treated patients. Serum MHAA4549A had faster clearance and a shorter half-life in influenza A-infected patients compared with healthy subjects. MHAA4549A detection in tracheal aspirate samples indicated exposure in the lower respiratory tract. Oseltamivir and oseltamivir carboxylate exposures were similar between MHAA4549A-treated and placebo groups, suggesting a lack of MHAA4549A interference with oseltamivir pharmacokinetics.


Assuntos
Anticorpos Monoclonais Humanizados/administração & dosagem , Anticorpos Monoclonais Humanizados/farmacocinética , Antivirais/administração & dosagem , Antivirais/farmacocinética , Influenza Humana/tratamento farmacológico , Oseltamivir/administração & dosagem , Oseltamivir/farmacocinética , Administração Oral , Idoso , Anticorpos Monoclonais Humanizados/sangue , Anticorpos Neutralizantes/sangue , Antivirais/sangue , Quimioterapia Combinada/métodos , Meia-Vida , Humanos , Vírus da Influenza A/efeitos dos fármacos , Infusões Intravenosas , Pacientes Internados , Pessoa de Meia-Idade , Nasofaringe/metabolismo , Oseltamivir/análogos & derivados , Oseltamivir/sangue , Traqueia/metabolismo
12.
Artigo em Inglês | MEDLINE | ID: mdl-32393496

RESUMO

For patients hospitalized with severe influenza A virus infection, morbidity and mortality remain high. MHAA4549A, a human monoclonal antibody targeting the influenza A virus hemagglutinin stalk, has demonstrated pharmacological activity in animal studies and in a human influenza A challenge study. We evaluated the safety and efficacy of MHAA4549A plus oseltamivir against influenza A virus infection in hospitalized patients. The CRANE trial was a phase 2b randomized, double-blind, placebo-controlled study of single intravenous (i.v.) doses of placebo, 3,600 mg MHAA4549A, or 8,400 mg MHAA4549A each combined with oral oseltamivir (+OTV) in patients hospitalized with severe influenza A virus infection. Patients, enrolled across 68 clinical sites in 18 countries, were randomized 1:1:1. The primary outcome was the median time to normalization of respiratory function, defined as the time to removal of supplemental oxygen support to maintain a stable oxygen saturation (SpO2) of ≥95%. Safety, pharmacokinetics, and effects on influenza viral load were also assessed. One hundred sixty-six patients were randomized and analyzed during a preplanned interim analysis. Compared to placebo+OTV, MHAA4549A+OTV did not significantly reduce the time to normalization of respiratory function (placebo+OTV, 4.28 days; 3,600 mg MHAA4549A+OTV, 2.78 days; 8,400 mg MHAA4549A+OTV, 2.65 days), nor did it improve other secondary clinical outcomes. Adverse event frequency was balanced across cohorts. MHAA4549A+OTV did not further reduce viral load versus placebo+OTV. In hospitalized patients with influenza A virus infection, MHAA4549A did not improve clinical outcomes over OTV alone. Variability in patient removal from oxygen supplementation limited the utility of the primary endpoint. Validated endpoints are needed to assess novel treatments for severe influenza A virus infection. (This study has been registered at ClinicalTrials.gov under registration no. NCT02293863.).


Assuntos
Vírus da Influenza A , Influenza Humana , Animais , Anticorpos Monoclonais/uso terapêutico , Anticorpos Monoclonais Humanizados , Antivirais/uso terapêutico , Método Duplo-Cego , Humanos , Influenza Humana/tratamento farmacológico , Oseltamivir/uso terapêutico
13.
Int J Telerehabil ; 12(2): 53-64, 2020 Dec 08.
Artigo em Inglês | MEDLINE | ID: mdl-33520095

RESUMO

Telehealth provides health care services to clients through telecommunications. Rehabilitation services such as occupational therapy, physical therapy, and speech-language therapy can be delivered via telehealth. The aim of this study was to evaluate patients' reports of their satisfaction with telehealth compared to standard in-person therapy for patients living in rural areas. Four databases were utilized for this systematic review. The following words were searched: telehealth, rural, and patient satisfaction. Abstract searches identified 251 articles, and 55 were read in full text. Four articles met inclusion criteria. There was high satisfaction for patients in all studies regarding the use of telehealth. Findings showed that overall, telehealth supported increased rates of patient satisfaction for OT, PT, and SLP services delivered to rural communities.

14.
J Exp Child Psychol ; 191: 104736, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31770682

RESUMO

This study examined working memory (WM) using complex span tasks (CSTs) to improve theoretical understanding of the relationship between WM and high-level cognition (HLC) in children. A total of 92 children aged 7 and 8 years were tested on three computer-paced CSTs and measures of nonverbal reasoning, reading, and mathematics. Processing times in the CSTs were restricted based on individually titrated processing speeds, and performance was compared with participant-led tasks with no time restrictions. Storage, processing accuracy, and both processing and recall times within the CSTs were used as performance indices to understand the effects of time restrictions at a granular level. Restricting processing times did not impair storage, challenging models that argue for a role of maintenance in WM. A task-switching account best explained the effect of time restrictions on performance indices and their interrelationships. Principal component analysis showed that a single factor with all performance indices from just one CST (counting span) was the best predictor of HLC. Storage in both the participant-led and computer-paced versions of this task explained unique and shared variance in HLC. However, the latter accounted for more variance in HLC when contributions from processing time were included in the model. Processing time in this condition also explained variance above and beyond storage. This suggests that faster processing is important to keep information active in WM; however, this is evident only when time restrictions are placed on the task and important when WM performance is applied in broader contexts that rely on this resource.


Assuntos
Desenvolvimento Infantil/fisiologia , Função Executiva/fisiologia , Conceitos Matemáticos , Memória de Curto Prazo/fisiologia , Desempenho Psicomotor/fisiologia , Tempo de Reação/fisiologia , Leitura , Pensamento/fisiologia , Criança , Feminino , Humanos , Masculino
15.
Br J Psychiatry ; 214(6): 329-338, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-30894243

RESUMO

BACKGROUND: In-patients in crisis report poor experiences of mental healthcare not conducive to recovery. Concerns include coercion by staff, fear of assault from other patients, lack of therapeutic opportunities and limited support. There is little high-quality evidence on what is important to patients to inform recovery-focused care.AimsTo conduct a systematic review of published literature, identifying key themes for improving experiences of in-patient mental healthcare. METHOD: A systematic search of online databases (MEDLINE, PsycINFO and CINAHL) for primary research published between January 2000 and January 2016. All study designs from all countries were eligible. A qualitative analysis was undertaken and study quality was appraised. A patient and public reference group contributed to the review. RESULTS: Studies (72) from 16 countries found four dimensions were consistently related to significantly influencing in-patients' experiences of crisis and recovery-focused care: the importance of high-quality relationships; averting negative experiences of coercion; a healthy, safe and enabling physical and social environment; and authentic experiences of patient-centred care. Critical elements for patients were trust, respect, safe wards, information and explanation about clinical decisions, therapeutic activities, and family inclusion in care. CONCLUSIONS: A number of experiences hinder recovery-focused care and must be addressed with the involvement of staff to provide high-quality in-patient services. Future evaluations of service quality and development of practice guidance should embed these four dimensions.Declaration of interestK.B. is editor of British Journal of Psychiatry and leads a national programme (Synergi Collaborative Centre) on patient experiences driving change in services and inequalities.


Assuntos
Serviços de Saúde Mental/normas , Assistência Centrada no Paciente/normas , Qualidade da Assistência à Saúde , Humanos , Pacientes Internados , Pesquisa Qualitativa
16.
Int J Psychiatry Clin Pract ; 23(3): 194-206, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-30848166

RESUMO

Purpose: Section 136 (S136) of the Mental Health Act (1983, 2007) provides legislative powers for police officers to detain those suspected of being 'mentally disordered' for a mental health assessment. Despite its increasing use, there is currently little qualitative research exploring detainee's experiences. Methodology: Participants recruited from NHS places of safety participated in a semi-structured interview. The novel application of Critical Incident Technique (CIT) within this study enabled the specific identification of critical incidents which mental health service users thought had either helped with, or worsened the S136 detention experience. A wish list of absent factors was also gathered. Findings: Six categories of helpful critical incidents, seven categories of unhelpful critical incidents and five categories of wish-list items were identified. The importance of authentic relationships underpinned many categories, as well as challenging stigma, considering previous detentions; and receiving practical support. Originality/value: The outlined study is the first of its kind to utilise CIT methodology to specifically identify critical incidents related to the process of S136 detention. These findings provide specific ways to improve the experience of detention informed directly by those who have been directly subjected to S136. Key points Take time to invest in meaningful relationships with those who are detained; asking about the individual's life experience and their perception of its relationship to their current presenting difficulties. Identify the service user's values -what's important to them, and what gives meaning to their life - and discuss this in relation to what their worries, concerns or wishes may be for treatment. Discuss previous experiences of involuntary admission- this can support all parties involved to consider the impact of detention upon the individual, and services. Use problem-free discussions to normalise and help de-stigmatise mental health difficulties and support rapport building. Provide practical support, such as food, drink and routinely allow those who are detained to gather personal belongings such as a change of clothes or a book. Ensure advocacy services are always available and accessible for those who are detained under S136. Where possible, avoid the use of restrictive or stigmatising practices in front of the public where possible (e.g. use of handcuffs, police vehicles as transport) to minimise risk of increasing mental health stigma.


Assuntos
Adaptação Psicológica , Internação Compulsória de Doente Mental/legislação & jurisprudência , Análise e Desempenho de Tarefas , Adolescente , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pesquisa Qualitativa , Adulto Jovem
17.
J Res Nurs ; 24(1-2): 75-85, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34394509

RESUMO

BACKGROUND: Early intervention services aim to improve outcomes for people with first episode psychosis and, where possible, to prevent psychiatric hospital admission. When hospitalisation does occur, inpatient staff are required to support patients and families who may be less familiar with services, uncertain about possible outcomes, and may be experiencing a psychiatric hospital for the first time. AIMS: Our study aimed to understand the process of hospitalisation in early psychosis, from the perspective of inpatient nursing staff. We were particularly interested in their experiences of working with younger people in the context of adult psychiatric wards. METHODS: Nine inpatient nursing staff took part in semi-structured interviews, which were transcribed and then analysed using interpretative phenomenological analysis. RESULTS: Five themes are outlined: 'it's all new and it's all learning'; the threatening, unpredictable environment; care and conflict within the intergenerational relationship; motivation and hope; and coping and self-preservation. CONCLUSIONS: The phenomenological focus of our approach throws the relational component of psychiatric nursing into sharp relief. We reflect on the implications for organisations, staff, families and young people. We suggest that the conventional mode of delivering acute psychiatric inpatient care is not likely to support the best relational and therapeutic outcomes.

18.
Acta Astronaut ; 160: 433-441, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32287491

RESUMO

One Health is an emerging concept in the health sciences that approaches human, animal and environmental health from a single framework. This policy approach is grounded in the knowledge that approximately 70 percent of emerging diseases in humans originate from other species, and that this species crossover is precipitated by stresses to environmental systems such as habitat change and biodiversity loss. Remote sensing tools apply well to this approach due to the multitude of variables that can be measured across borders in real-time. This paper explores the challenges and opportunities of using satellite remote sensing to monitor biodiversity loss in real time, with a goal of predictive surveillance for emerging disease events. Key findings include that (1) certain emerging disease events are preceded by biodiversity changes that can be observed from space; (2) refining quantitative assessments of biodiversity loss is a critical next step; and (3) biodiversity loss as observed from space merits inclusion in emerging disease surveillance programs as a complement to in situ and epidemiological surveillance data.

19.
Nat Commun ; 9(1): 3610, 2018 09 06.
Artigo em Inglês | MEDLINE | ID: mdl-30190466

RESUMO

Biologists have focused their attention on the optical functions of light reflected at ultraviolet and human-visible wavelengths. However, most radiant energy in sunlight occurs in 'unseen' near-infrared (NIR) wavelengths. The capacity to reflect solar radiation at NIR wavelengths may enable animals to control heat gain and remain within their critical thermal limits. Here, using a continent-wide phylogenetic analysis of Australian birds, we show that species occupying hot, arid environments reflect more radiant energy in NIR wavelengths than species in thermally benign environments, even when controlling for variation in visible colour. Biophysical models confirm that smaller species gain a greater advantage from high NIR reflectivity in hot, arid environments, reducing water loss from compensatory evaporative cooling by up to 2% body mass per hour. These results highlight the importance of NIR reflectivity for thermal protection, which may become increasingly critical as the frequency of extreme climatic events increases.


Assuntos
Fenômenos Biofísicos , Aves/fisiologia , Filogenia , Adaptação Biológica , Animais , Austrália , Tamanho Corporal , Clima , Ecossistema , Feminino , Masculino , Modelos Biológicos , Luz Solar
20.
PLoS One ; 13(7): e0199129, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29975724

RESUMO

Research on the optical properties of animal integuments, including fur, feather, skin and cuticle, has focussed almost exclusively on animal-visible wavelengths within the narrow range of 300-700 nm. By contrast, the near-infrared (NIR) portion of direct sunlight, spanning 700-2600 nm, has been largely ignored despite its potentially important thermal consequences. We quantified variation in visible and NIR reflectance and transmission for white body contour feathers of 50 bird species, and examined how well they are predicted by feather macro- and micro-structural morphology. Both visible and NIR reflectance of the feathers varied substantially across species. Larger, thicker, and sparser feathers that are characteristic of larger species, and feathers with rounder barbs and more closely spaced barbules, had high average reflectance, particularly within avian-visible wavelengths (300-700 nm). Feathers with rounder barbs and more closely situated barbules also had high average reflectance, particularly for NIR wavelengths. Barb roundness and barbule density were the only predictors of NIR reflectance after accounting for variation in visible reflectance and body size. Our results highlight the potential for adaptive variation in NIR reflectance mediated by feather structure, which may inform the design of functional materials to control light and heat.


Assuntos
Evolução Biológica , Plumas/ultraestrutura , Fenômenos Fisiológicos , Pele/ultraestrutura , Animais , Aves , Plumas/química , Luz , Microscopia Eletrônica de Transmissão , Pele/química
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