Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 33
Filtrar
Mais filtros

Base de dados
País/Região como assunto
Tipo de documento
Intervalo de ano de publicação
1.
J Am Acad Dermatol ; 2024 Sep 20.
Artigo em Inglês | MEDLINE | ID: mdl-39307352

RESUMO

BACKGROUND: Few studies show how dermatologic surgeons manage problems with site identification. OBJECTIVE: To estimate frequency and characterize management of skin cancer treated by surgery when the anatomic location of the tumor is in question. METHODS: Nationwide, prospective, multisite cohort study. RESULTS: Among 17,076 cases at 22 centers, 98 (0.60%) were lesions in question for which site identification was initially uncertain, with these more often in patients who were male, older, and biopsied more than 30 days ago. Surgeons employed on average 5.0 (95% CI: 4.61-5.39) additional techniques to confirm the site location, with common approaches including: re-checking available documentation (90 lesions, 92%); performing an expanded physical examination (89 lesions, 91%); and asking the patient to point using a mirror (61 lesions, 62%). In 15%, photographs were requested from the biopsying provider, and also in 15%, frozen section biopsies were obtained. In 10%, the referring physician was contacted. Eventually, surgeons succeeded in definitively identifying 82% (80 of 98) of initially uncertain sites, with the remaining 18% (18 of 98) postponed. Most postponed surgeries were at non-facial sites. LIMITATIONS: Sites were academic centers. CONCLUSIONS: When the anatomic location of the tumor is uncertain, dermatologic surgeons use multiple methods to identify the site, and sometimes cases are postponed.

2.
Mem Cognit ; 48(6): 1046-1060, 2020 08.
Artigo em Inglês | MEDLINE | ID: mdl-32323109

RESUMO

We present two experiments that examine structural priming in the single-trial phone-call paradigm introduced by Levelt and Kelter (Cognitive psychology, 14 (1), 78-106, 1982). Experimenters called businesses and asked either What time do you close? or At what time do you close? Participants were more likely to produce a prepositional response (At 7 o'clock vs. 7 o'clock) following a prepositional question than following a non-prepositional question. Experiments 1 and 2 attempted to strengthen the priming effect by having the experimenters engage in a brief interaction with the participant before asking the What time…? question. The interactions did not reliably affect the observed priming effect. An analysis across experiments demonstrated that the priming effect found in this paradigm is generally smaller than the average structural priming effect (as reported in Mahowald, James, Futrell, & Gibson, Journal of Memory and Language, 91, 5-27, 2016), but within the range of the effects that are observed in different structural priming paradigms.


Assuntos
Idioma , Memória , Humanos , Priming de Repetição
8.
Arch Dermatol Res ; 316(7): 364, 2024 Jun 08.
Artigo em Inglês | MEDLINE | ID: mdl-38850371

RESUMO

Acne scarring results from a common inflammatory condition present in many people. These scars can have an impact on quality of life by influencing self-esteem and social acceptance. Current acne scarring treatments, such as chemical peels and laser treatments, often have limited success due to their time-consuming nature and the variability of acne scar types. The subcision technique has shown promise for the treatment of rolling acne scars. There are few studies to date that examine the effects of multiple subcision treatments on rolling acne scars. We evaluated whether the use of multiple subcision treatments improved the appearance of rolling acne scars compared to no treatment. Five patients with rolling acne scars on both sides of their face who met inclusion and exclusion criteria were enrolled in the study. One side of the face was randomized to receive treatment, while the contralateral side of the face received no treatment. Subjects underwent five sequential subcision treatments, spaced 4 weeks apart, with two follow-up visits at weeks 20 and 36 from the 1st treatment. Photographs were taken before and after the initial treatment visit and at each subsequent visit. Acne scar appearance was evaluated by the subject, a blinded live rater, and two double-blinded dermatologist raters. Evaluations of treatment outcomes involved overall acne scar appearance on a 5-point scale, acne scar improvement on a percentage scale, a modified quantitative global scarring grading system, and potential treatment side effects. There was a greater decrease in global scarring scores in the multiple subcision side compared to the control side. There was a greater difference in the average acne scar appearance scores between the Week 36 follow-up visit and baseline for the multiple subcision side compared to that of the control side. 50% of patients reported being more satisfied with the treatment side compared to the control side in regard to overall improvement. The study results suggest that multiple subcision treatments may improve the appearance of rolling acne scars compared to no treatment.


Assuntos
Acne Vulgar , Cicatriz , Humanos , Acne Vulgar/complicações , Acne Vulgar/terapia , Cicatriz/etiologia , Cicatriz/terapia , Cicatriz/diagnóstico , Cicatriz/psicologia , Feminino , Adulto , Masculino , Resultado do Tratamento , Adulto Jovem , Face , Qualidade de Vida , Satisfação do Paciente
9.
JAMA Netw Open ; 7(10): e2436066, 2024 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-39382899

RESUMO

Importance: The manufacturing and marketing of medical devices is regulated by the US Food and Drug Administration (FDA), and the FDA premarket approval (PMA) process evaluates the safety and effectiveness of medical devices. The PMA process includes a detailed scientific, regulatory and quality system review and is critical to ensure that novel devices are safe, effective, and meet the needs of patients. Objective: To survey current voting members serving on panels of the FDA's Medical Devices Advisory Committee to better characterize panel decision-making and identify steps for improvement. Design, Setting, and Participants: This qualitative survey study included 36 questions that were mailed to FDA device panelists regarding their opinions on the influence of sources of information, pivotal trial design, quality of evidence, panel composition and internal deliberative process, time allocation, and impartiality of the FDA. The survey was mailed to the members of all 18 FDA device panels in January and February 2017. Data were collected from January to May 2017 and analyzed from 2018 to 2019. Exposures: Respondents read and returned the aforementioned paper survey, while nonrespondents did not. Main Outcomes and Measures: The main outcomes included panel members' perceptions, and their implications for process improvement. χ2 or Fisher exact tests were used to test differences between subgroups. Results: Of 64 of 92 panel members who responded (69.6%), 38 of 64 (59.4%) were male, 3 of 63 (4.8%) were Black respondents, 46 of 63 (73.0%) were White respondents, and 36 of 60 (60.0%) were in academic practice. The mean (range) panel service was 6.8 (1-22) years with 3.9 (1-19) meetings attended. Overall, respondents considered information presented by the FDA unbiased, and 28 of 61 (45.9%) believed that pivotal trials were frequently well-designed, 55 of 62 respondents (88.7%) suggested FDA consult panel members preemptively regarding trial design and 54 of 64 (84.4%) regarding the device label. Most indicated that prior FDA approval of another device serving the same medical purpose (43 of 62 [69.4%]) or approval in other countries with comparable regulatory regimes, such as Canada and Europe (39 of 62 [62.9%]), would make them more likely to recommend approval. Respondents rated written information (50 of 60 [83.3%]), live presentations (43 of 58 [74.1%]), and prior professional knowledge (41 of 60 [68.3%]) as the most important sources of information in deciding whether to recommend approval. Additionally, 52 of 58 respondents (89.7%) recommended that a panel member-only executive session would allow more clarity and honesty in deliberations, and 33 of 59 (55.9%) believed a three-fourths majority appropriate for recommending approval, which would be a deviation from the current system in which an overall vote is reported without designation of a vote threshold. Conclusions and Relevance: In this survey study of FDA device panel members, respondents wanted improved study designs, more relevant clinical data, including from other countries, involvement of panelists in study design and device label development, and inclusion of an executive session. Demographically, panels could be made more diverse.


Assuntos
Comitês Consultivos , Aprovação de Equipamentos , United States Food and Drug Administration , Estados Unidos , Humanos , Aprovação de Equipamentos/normas , Inquéritos e Questionários , Masculino , Feminino
10.
Med Care Res Rev ; 81(5): 384-394, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-38819958

RESUMO

Primary care practitioners (PCPs) are the first point of contact for most patients with suspected dementia and have identified a need for more training and support around dementia diagnosis and care. This qualitative study examined the Alzheimer's Disease-Extension for Community Healthcare Outcomes (AD-ECHO) program. AD-ECHO was designed to strengthen PCP capacity in dementia through bimonthly virtual meetings with a team of dementia experts. We conducted 24 hr of direct observations at AD-ECHO sessions and interviewed 14 participants about their experiences participating. Using thematic analysis, we found that participants valued the supportive learning environment and resources; knowledge gained empowered them to take more action around dementia; they identified ways of disseminating knowledge gained into their practice settings, and many desired ongoing AD-ECHO engagement. However, most identified time as a barrier to participation. AD-ECHO has the potential to strengthen the primary care workforce's knowledge and confidence around dementia care.


Assuntos
Doença de Alzheimer , Demência , Atenção Primária à Saúde , Pesquisa Qualitativa , Humanos , Doença de Alzheimer/diagnóstico , Feminino , Demência/diagnóstico , Demência/terapia , Masculino , Fortalecimento Institucional
11.
Artigo em Inglês | MEDLINE | ID: mdl-39412894

RESUMO

INTRODUCTION: Compared to White patients, African American (AA) patients have a four-fold higher prevalence of kidney failure and higher hemodialysis non-adherence. Adherence behaviors are influenced by psychosocial factors, including personal meaning of a behavior and self-confidence to enact it. We assessed perspectives of AA hemodialysis patients on unique factors impacting dialysis adherence, and use of motivational interviewing, an evidence-based intervention, to improve these factors, dialysis adherence, and outcomes in AAs. METHODS: Self-identified AA hemodialysis patients (N=22) watched a brief video describing motivational interviewing and then completed a semi-structured interview or focus group session. Interview questions explored unique barriers and facilitators of hemodialysis adherence in AAs, and perceived utility of motivational interviewing to address these obstacles. Verbatim transcripts and an iterative inductive/deductive approach were used to develop a hierarchical coding system. Three experienced coders independently coded the same two transcripts. Coding was compared and discrepancies were reconciled by a fourth coder or consensus. Transcripts, quotations, and codes were managed using Microsoft Excel 2016 and SPSS version 28.0. RESULTS: Themes and sub-themes emerged and culminated in a novel conceptual model informed by three theoretical models of behavior change: Theory of Self-Care Management for Vulnerable Populations; Social Cognitive Theory; and Self Determination Theory. This conceptual model will inform the design of a culturally tailored, motivational interviewing-based intervention to improve dialysis adherence in AAs. CONCLUSIONS: Integrating AA hemodialysis patient perspectives is critical for enhancing dialysis care delivery and the design of effective interventions such as motivational interviewing to improve dialysis adherence in AA and promote kidney health equity. AA hemodialysis patients view motivational interviewing as a tool to clarify patient priorities, build trust, and promote patient-provider therapeutic alliance. Cultural tailoring of motivational interviewing to address unique barriers of AAs with kidney failure will improve adherence and health outcomes in these vulnerable patients.

12.
Arch Dermatol Res ; 316(7): 344, 2024 Jun 07.
Artigo em Inglês | MEDLINE | ID: mdl-38847979

RESUMO

Therapeutic options for acne scars include subcision and suction with microdermabrasion, but these treatment modalities have not been studied in conjunction. To compare effectiveness of subcision alone versus subcision with suction for the treatment of facial acne scars. Randomized, split-faced, evaluator-blinded control trial. Participants underwent one subcision treatment on both sides of the face followed by 10 sessions of suction to one side. Photographs at baseline, 1-month, and 4-months were assessed. Primary outcome measures were the validated Acne Scar Severity Scale (ASSS) (0 = no acne scarring, 4 = severe), Acne Scar Improvement Grading Scale (ASIGS) (-100 to 100%), and modified Quantitative Global Scarring Grades (QGSG) (point-based questionnaire instrument), as well as subject preference. Twenty-eight treatment areas and 154 treatments were analyzed. Dermatologist raters found no differences between subcision alone and subcision-suction at 1-month or 4-months. Mean subject-assessed percent improvement for subcision-suction was higher than that for subcision alone at 1-month (37% versus 24%, p = 0.04) but not at 4-months (p = 0.37). Subjects preferred combination therapy to monotherapy at 1-month (50% vs. 21%) and 4-months (43% vs. 21%). While blinded raters did not detect significant differences, subjects perceived combination treatment as working more quickly than monotherapy, and preferred combination treatment at all time points.Clinical trial registration NCT01696513 on Clinicaltrials.gov.


Assuntos
Acne Vulgar , Cicatriz , Humanos , Acne Vulgar/complicações , Cicatriz/etiologia , Cicatriz/diagnóstico , Cicatriz/terapia , Feminino , Masculino , Adulto , Sucção/métodos , Adulto Jovem , Resultado do Tratamento , Adolescente , Índice de Gravidade de Doença , Terapia Combinada/métodos , Método Simples-Cego , Face
13.
JAMA Dermatol ; 160(6): 658-666, 2024 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-38656294

RESUMO

Importance: Inconsistent reporting of outcomes in clinical trials of rosacea is impeding and likely preventing accurate data pooling and meta-analyses. There is a need for standardization of outcomes assessed during intervention trials of rosacea. Objective: To develop a rosacea core outcome set (COS) based on key domains that are globally relevant and applicable to all demographic groups to be used as a minimum list of outcomes for reporting by rosacea clinical trials, and when appropriate, in clinical practice. Evidence Review: A systematic literature review of rosacea clinical trials was conducted. Discrete outcomes were extracted and augmented through discussions and focus groups with key stakeholders. The initial list of 192 outcomes was refined to identify 50 unique outcomes that were rated through the Delphi process Round 1 by 88 panelists (63 physicians from 17 countries and 25 patients with rosacea in the US) on 9-point Likert scale. Based on feedback, an additional 11 outcomes were added in Round 2. Outcomes deemed to be critical for inclusion (rated 7-9 by ≥70% of both groups) were discussed in consensus meetings. The outcomes deemed to be most important for inclusion by at least 85% of the participants were incorporated into the final core domain set. Findings: The Delphi process and consensus-building meetings identified a final core set of 8 domains for rosacea clinical trials: ocular signs and symptoms; skin signs of disease; skin symptoms; overall severity; patient satisfaction; quality of life; degree of improvement; and presence and severity of treatment-related adverse events. Recommendations were also made for application in the clinical setting. Conclusions and Relevance: This core domain set for rosacea research is now available; its adoption by researchers may improve the usefulness of future trials of rosacea therapies by enabling meta-analyses and other comparisons across studies. This core domain set may also be useful in clinical practice.


Assuntos
Ensaios Clínicos como Assunto , Consenso , Técnica Delphi , Rosácea , Rosácea/terapia , Rosácea/diagnóstico , Humanos , Ensaios Clínicos como Assunto/normas , Avaliação de Resultados em Cuidados de Saúde/normas , Resultado do Tratamento
14.
J Exp Med ; 204(3): 619-31, 2007 Mar 19.
Artigo em Inglês | MEDLINE | ID: mdl-17325202

RESUMO

Loss of interleukin (IL)-7 or the IL-7 receptor alpha (IL-7Ralpha, CD127) results in severe immunodeficiencies in mice and humans. To more precisely identify signals governing IL-7 function in vivo, we have disrupted the IL-7Ralpha Y449XXM motif in mice by knock-in mutagenesis (IL-7Ralpha(449F)). Thymic precursors were reduced in number in IL-7Ralpha(449F) mice, but in marked contrast to IL-7Ralpha(-/-) knockout mice, thymocytes and peripheral T cells developed normally. Strikingly, Listeria infection revealed that CD4 and CD8 T cells had different requirements for IL-7Ralpha signals. CD4 T cells failed to mount a primary response, but despite normal CD8 primary responses, maintenance of CD8 memory was impaired in IL-7Ralpha(449F) mice. Furthermore, we show that Bcl-2 is IL-7Ralpha Y449 independent and insufficient for IL-7-mediated maintenance of CD8 memory.


Assuntos
Linfócitos T CD4-Positivos/imunologia , Linfócitos T CD8-Positivos/imunologia , Memória Imunológica/genética , Receptores de Interleucina-7/genética , Animais , Linfócitos T CD8-Positivos/metabolismo , Linfócitos T CD8-Positivos/patologia , Sobrevivência Celular/genética , Sobrevivência Celular/imunologia , Células Cultivadas , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Knockout , Camundongos Mutantes , Mutagênese Sítio-Dirigida , Transdução de Sinais/genética
15.
JAMA Netw Open ; 6(9): e2336030, 2023 09 05.
Artigo em Inglês | MEDLINE | ID: mdl-37768660

RESUMO

Importance: Although the barriers to dementia care in primary care are well characterized, primary care practitioner (PCP) perspectives could be used to support the design of values-aligned dementia care pathways that strengthen the role of primary care. Objective: To describe PCP perspectives on their role in dementia diagnosis and care. Design, Setting, and Participation: In this qualitative study, interviews were conducted with 39 PCPs (medical doctors, nurse practitioners, and doctors of osteopathic medicine) in California between March 2020 and November 2022. Results were analyzed using thematic analysis. Main Outcomes and Measures: Overarching themes associated with PCP roles in dementia care. Results: Interviews were conducted with 39 PCPs (25 [64.1%] were female; 16 [41%] were Asian). The majority (36 PCPs [92.3%]) reported that more than half of their patients were insured via MediCal, the California Medicaid program serving low-income individuals. Six themes were identified that convey PCPs' perspectives on their role in dementia care. These themes focused on (1) their role as first point of contact and in the diagnostic workup; (2) the importance of long-term, trusting relationships with patients; (3) the value of understanding patients' life contexts; (4) their work to involve and educate families; (5) their activities around coordinating dementia care; and (6) how the care they want to provide may be limited by systems-level constraints. Conclusions and Relevance: In this qualitative study of PCP perspectives on their role in dementia care, there was alignment between PCP perspectives about the core values of primary care and their work diagnosing and providing care for people living with dementia. The study also identified a mismatch between these values and the health systems infrastructure for dementia care in their practice environment.


Assuntos
Demência , Médicos de Atenção Primária , Atenção Primária à Saúde , Feminino , Humanos , Masculino , Demência/diagnóstico , Demência/terapia , Pessoal de Saúde , Estados Unidos , Papel do Médico
16.
Arch Dermatol Res ; 316(1): 43, 2023 Dec 13.
Artigo em Inglês | MEDLINE | ID: mdl-38091095

RESUMO

Surgical site infections (SSIs) contribute to morbidity and are costly to the healthcare system. To identify factors associated with SSIs. Case-control study analyzing the Nationwide Readmission Database (NRD). We identified 45,445 SSIs. Infection rates were higher in those who were obese (BMI ≥ 30) (OR: 1.39, 95% CI 1.28-1.51), tobacco users (OR: 1.08, 95% CI 1.02-1.15), diagnosed with diabetes (OR: 1.16, 95% CI 1.10-1.22), with Elixhauser Comorbidity Index ≥ 2 (OR: 1.14, 95% CI 1.09-1.20), admitted to hospital for 4-6 days (OR: 1.35, 95% CI 1.29-1.42), in medium-size hospital (OR: 1.15, 95% CI 1.05-1.26), or large-size hospital (OR: 1.43, 95% CI 1.31-1.56). In contrast, patients who were 60-79 years old (OR: 0.78, 95% CI 0.73-0.84), 80 years or older (OR: 0.66, 95% CI 0.59-0.73), female (OR: 0.95, 95% CI 0.91-0.99), underweight (BMI < 18.5) (OR: 0.14, 95% CI 0.03-0.59), in a non-metropolitan hospital (OR: 0.83, 95% CI 0.75-0.91), self-pay (OR: 0.82, 95% CI 0.74-0.91), or covered by Medicare (OR: 0.86, 95% CI 0.80-0.91) had lower odds. Initial data entry to NRD is susceptible to human error. Patients who are obese, use tobacco, have multiple comorbidities, and have long hospital stays in medium-to-large-size hospitals are at risk of SSIs. Conversely, odds of SSIs are lower in females, age ≥ 60, BMI < 18.5, self-pay or Medicare (versus private insurance), or at smaller hospitals. Understanding factors associated with SSIs may help surgeons anticipate complications.


Assuntos
Medicare , Infecção da Ferida Cirúrgica , Humanos , Feminino , Idoso , Estados Unidos/epidemiologia , Pessoa de Meia-Idade , Infecção da Ferida Cirúrgica/epidemiologia , Infecção da Ferida Cirúrgica/etiologia , Estudos de Casos e Controles , Fatores de Risco , Obesidade/epidemiologia , Hospitais , Estudos Retrospectivos
17.
PLoS One ; 17(8): e0272496, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35925925

RESUMO

BACKGROUND: Impostor syndrome is characterized by fraudulent self-doubt and correlates with burnout, and adverse mental health. OBJECTIVE: The objective was to investigate correlates of Impostor syndrome in a medical education cohort and determine if an interactive workshop can improve knowledge and perception of Impostor syndrome. METHODS: From June 2019 to February 2021 interactive educational workshops were conducted for medical education cohorts. Participants completed baseline knowledge and Impostor syndrome self-identification surveys, participated in interactive presentations and discussions, followed by post-intervention surveys. RESULTS: There were 198 participants including 19% residents, 10% medical students, 30% faculty and 41% Graduate Medical Education (GME) administrators. Overall, 57% were positive for Impostor syndrome. Participants classified as the following Impostor syndrome competence subtypes: Expert = 42%; Soloist = 34%; Super-person = 31%; Perfectionist = 25%; and Natural Genius = 21%. Self-identified contributors of IS included: parent expectations = 72%, female gender = 58%, and academic rat race = 37%. GME administrators compared to physicians/medical students had significantly higher number of self-identified contributors to Impostor syndrome. Knowledge survey scores increased from 4.94 (SD = 2.8) to 5.78 (2.48) post intervention (p = 0.045). Participants with Impostor syndrome competence subtypes had increased perceptions of Impostor syndrome as a cause of stress, failure to reach full potential, and negative relationships/teamwork (p = 0.032 -<0.001). CONCLUSION: Impostor syndrome was common in this medical education cohort, and those with Impostor syndrome significantly attributed negative personal and professional outcomes to Impostor syndrome. An interactive workshop on Impostor syndrome can be used to increase perceptions and knowledge regarding Impostor syndrome. The materials can be adapted for relevance to various audiences.


Assuntos
Esgotamento Profissional , Educação Médica , Estudantes de Medicina , Transtornos de Ansiedade , Esgotamento Profissional/psicologia , Educação de Pós-Graduação em Medicina , Feminino , Humanos , Masculino , Autoimagem , Estudantes de Medicina/psicologia
18.
J Clin Virol ; 150-151: 105157, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-35413587

RESUMO

We clinically characterized PCR detected breakthrough infections among partially/fully vaccinated cases with majority given an inactivated vaccine, CoronaVac. From 1 March to 15 July 2021, we detected 182 SARS-CoV-2 infections among vaccinated cases with 129 classified as breakthrough infections. Majority were male, 30-39 y.o., and were asymptomatic or mildly symptomatic with few severe cases. Alpha, Beta and Delta VOCs were detected from sequenced breakthrough infections. Healthcare workers had significantly lower Ct values(higher viral loads) versus non-HCWs. Our results underscore the importance of regular PCR screening for HCWs due to the risk of SARS-CoV-2 transmission from asymptomatic breakthrough infections and provide evidence supporting administration of a booster dose especially to HCWs.


Assuntos
COVID-19 , Infecções Assintomáticas , Vacinas contra COVID-19 , Feminino , Humanos , Masculino , Filipinas/epidemiologia , SARS-CoV-2
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA