Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 15 de 15
Filtrar
1.
JMIR Form Res ; 5(12): e30762, 2021 Dec 10.
Artigo em Inglês | MEDLINE | ID: mdl-34889745

RESUMO

BACKGROUND: Continuous α1a-blockade is the first-line treatment for lower urinary tract symptoms (LUTS) among older men with suspected benign prostatic hyperplasia. Variable efficacy and safety for individual men necessitate a more personalized, data-driven approach to prescribing and deprescribing tamsulosin for LUTS in older men. OBJECTIVE: We aim to evaluate the feasibility and usability of the PERSONAL (Placebo-Controlled, Randomized, Patient-Selected Outcomes, N-of-1 Trials) mobile app for tracking daily LUTS severity and medication side effects among older men receiving chronic tamsulosin therapy. METHODS: We recruited patients from the University of California, San Francisco health care system to participate in a 2-week pilot study. The primary objectives were to assess recruitment feasibility, study completion rates, frequency of symptom tracking, duration of tracking sessions, and app usability rankings measured using a follow-up survey. As secondary outcomes, we evaluated whether daily symptom tracking led to changes in LUTS severity, perceptions of tamsulosin, overall quality of life, medication adherence between baseline and follow-up surveys, and perceived app utility. RESULTS: We enrolled 19 men within 23 days, and 100% (19/19) of the participants completed the study. Each participant selected a unique combination of symptoms to track and recorded data in the PERSONAL app, with a median daily completion rate of 79% (11/14 days). The median duration of the app session was 44 (IQR 33) seconds. On a scale of 1 (strongly disagree) to 5 (strongly agree), the participants reported that the PERSONAL app was easy to use (mean 4.3, SD 1.0), that others could learn to use it quickly (mean 4.2, SD 0.9), and that they felt confident using the app (mean 4.4, SD 0.8). LUTS severity, quality of life, and medication adherence remained unchanged after the 2-week study period. Fewer men were satisfied with tamsulosin after using the app (14/19, 74% vs 17/19, 89% at baseline), although the perceived benefit from tamsulosin remained unchanged (18/19, 95% at baseline and at follow-up). In total, 58% (11/19) of the participants agreed that the PERSONAL app could help people like them manage their urinary symptoms. CONCLUSIONS: This pilot study demonstrated the high feasibility and usability of the PERSONAL mobile app to track patient-selected urinary symptoms and medication side effects among older men taking tamsulosin to manage LUTS. We observed that daily symptom monitoring had no adverse effects on the secondary outcomes. This proof-of-concept study establishes a framework for future mobile app studies, such as digital n-of-1 trials, to collect comprehensive individual-level data for personalized LUTS management in older men.

2.
JMIR Hum Factors ; 8(4): e30767, 2021 Dec 24.
Artigo em Inglês | MEDLINE | ID: mdl-34951599

RESUMO

BACKGROUND: Mobile health (mHealth) apps may provide an efficient way for patients with lower urinary tract symptoms (LUTS) to log and communicate symptoms and medication side effects with their clinicians. OBJECTIVE: The aim of this study was to explore the perceptions of older men with LUTS after using an mHealth app to track their symptoms and tamsulosin side effects. METHODS: Structured phone interviews were conducted after a 2-week study piloting the daily use of a mobile app to track the severity of patient-selected LUTS and tamsulosin side effects. Quantitative and qualitative data were considered. RESULTS: All 19 (100%) pilot study participants completed the poststudy interviews. Most of the men (n=13, 68%) reported that the daily questionnaires were the right length, with 32% (n=6) reporting that the questionnaires were too short. Men with more severe symptoms were less likely to report changes in perception of health or changes in self-management; 47% (n=9) of the men reported improved awareness of symptoms and 5% (n=1) adjusted fluid intake based on the questionnaire. All of the men were willing to share app data with their clinicians. Thematic analysis of qualitative data yielded eight themes: (1) orientation (setting up app, format, symptom selection, and side-effect selection), (2) triggers (routine or habit and symptom timing), (3) daily questionnaire (reporting symptoms, reporting side effects, and tailoring), (4) technology literacy, (5) perceptions (awareness, causation or relevance, data quality, convenience, usefulness, and other apps), (6) self-management, (7) clinician engagement (communication and efficiency), and (8) improvement (reference materials, flexibility, language, management recommendations, and optimize clinician engagement). CONCLUSIONS: We assessed the perceptions of men using an mHealth app to monitor and improve management of LUTS and medication side effects. LUTS management may be further optimized by tailoring the mobile app experience to meet patients' individual needs, such as tracking a greater number of symptoms and integrating the app with clinicians' visits. mHealth apps are likely a scalable modality to monitor symptoms and improve care of older men with LUTS. Further study is required to determine the best ways to tailor the mobile app and to communicate data to clinicians or incorporate data into the electronical medical record meaningfully.

3.
Cancer Med ; 10(13): 4564-4574, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-34102000

RESUMO

BACKGROUND: Cancer patients incur high care costs; however, there is a paucity of literature characterizing unmet financial obligations for patients with urologic cancers. Kidney cancer patients are particularly burdened by costs associated with novel systemic treatments. This study aimed to ascertain the characteristics of GoFundMe® crowdfunding campaigns for patients with kidney cancer, in order to better understand the financial needs of this population. METHODS: We performed a cross-sectional, quantitative, and qualitative analysis of all kidney cancer GoFundMe® campaigns since 2010. Fundraising metrics such as goal funds and amount raised, were extracted. Eight independent investigators collected patient, disease and campaign-level variables from campaign stories (κ = 0.72). In addition, we performed a content analysis of campaign narratives spotlighting the primary appeal of the patient's life story. RESULTS: A total of 486 GoFundMe® kidney cancer campaigns were reviewed. The median goal funds were 10,000USD [IQR = 5000, 20,000] and the median amount raised was 1450USD [IQR = 578, 4050]. Most campaigns were for adult males (53%) and 62% of adults had children. A minority were for pediatric patients (17%). Thirty-seven percent of adult patients were primary wage earners and 43% reported losing their job or substantially reducing hours due to illness. Twenty-nine percent reported no insurance or insufficient coverage. Campaigns most frequently sought funds for medical bills (60%), nonmedical bills (27%), and medical travel (23%). Qualitative campaign narratives mostly emphasized patients' hardship (46.3%) or high moral character (35.2%). Only 8% of campaigns achieved their target funds. CONCLUSIONS: Despite fundraising efforts, patients with kidney cancer face persistent financial barriers, incurring both medical and nonmedical cost burdens. This may be compounded by limited or no insurance. Cancer care providers should be aware of financial constraints placed on kidney cancer patients, and consider how these may impact treatment regimens.


Assuntos
Obtenção de Fundos/métodos , Custos de Cuidados de Saúde , Neoplasias Renais/economia , Adulto , Criança , Efeitos Psicossociais da Doença , Estudos Transversais , Crowdsourcing , Feminino , Estresse Financeiro , Obtenção de Fundos/economia , Obtenção de Fundos/organização & administração , Obtenção de Fundos/estatística & dados numéricos , Humanos , Cobertura do Seguro/estatística & dados numéricos , Neoplasias Renais/terapia , Masculino , Pessoas sem Cobertura de Seguro de Saúde/estatística & dados numéricos , Narrativas Pessoais como Assunto , Pesquisa Qualitativa
4.
Urol Pract ; 8(3): 380-386, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-37145661

RESUMO

INTRODUCTION: Publications at any point in training can impact future academic interest and achievement. Implications of publishing scholarly work prior to residency on accomplishments during and after residency are understudied. METHODS: We obtained publication output before, during and after residency for urologists graduating between 2002 and 2008 from the 36 training programs affiliated with a top 50 urology hospital nationwide. Additional collected information included fellowship training, current appointment, total and R01 National Institutes of Health grants, and h-index. We compared urologists' preresidency scholarship with residency and career achievements. RESULTS: We retrieved data from 543 urologists, of whom 161 (29.7%) and 92 (16.9%) published 1 or more total and first author manuscripts before residency, respectively. A total of 269 (49.5%) urologists went on to pursue fellowship and 183 (33.7%) entered academic practice. Urologists with a first author publication before residency had increased odds of entering academics (OR 1.9, 95% CI 1.2-3.1), obtaining National Institutes of Health grants (OR 2.2, 95% CI 1.1-4.3) and acquiring National Institutes of Health R01 grants (OR 4.1, 95% CI 1.7-9.7). Those with more first author manuscripts prior to residency were also more likely to pursue fellowship (p=0.0002), have a higher h-index (p <0.0001) and publish more during (p <0.0001) and after residency (p=0.0002). However, those with more total publications before residency were only associated with greater h-index (p=0.002) and publications in residency (p=0.001). CONCLUSIONS: Preresidency scholarly endeavors, particularly first author publications, are associated with future scholarly achievement, which may inform both resident selection procedures and medical education curricular development.

6.
Neurourol Urodyn ; 40(1): 310-318, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-33137215

RESUMO

AIMS: Treatment for urinary incontinence (UI) includes pelvic floor muscle training (PFMT). There is limited data appraising the characteristics of PFMT devices. We aimed to ascertain the primary use, strengths and weaknesses of PFMT devices available online, through evaluation of consumer reviews. METHODS: We performed an analysis of PFMT devices on Amazon.com. Four key device categories were recognized. Reviews from the five most frequently-reviewed products per category were analyzed (n = 20). W characterized device use, strengths and weaknesses using thematic analysis. RESULTS: We evaluated 2574 PFMT device reviews including 1168 vibrating Kegel balls, 750 non-vibrating Kegel balls, 411 pelvic floor or thigh exercisers, and 245 electric probes. Non-vibrating Kegel balls were rated highest (4.6/5 stars), followed by vibrating Kegel balls, electric probes and pelvic floor or thigh exercisers (4.4/5, 4.1/5, and 3.8/5 stars, respectively). Most reviews were positive (77%) or negative (16%) with few neutral (7%). While all were marketed to treat UI, most reviews did not mention the intended use. Vibrating and non-vibrating Kegel balls and electric probes were most likely to be used for UI, and pelvic floor or thigh exercisers for toning. Some used non-vibrating and vibrating Kegel balls for sexual function. Electric probes were the most beneficial device for incontinence control (27%, 67/245). Twenty-five percent of all product reviews praised device ease of use and good quality or design. A minority of reviewers found products difficult to use, of poor quality or design and uncomfortable. CONCLUSION: Consumers utilized online PFMT devices for multiple purposes, including UI, toning and sexual function. Reviewers generally praised PFMT products, particularly electric probes for UI.


Assuntos
Terapia por Exercício/métodos , Uso da Internet/tendências , Diafragma da Pelve/fisiopatologia , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Pessoa de Meia-Idade
7.
Urology ; 135: 11-19, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31605681

RESUMO

OBJECTIVE: To elucidate current understanding on the pathophysiological mechanism of genital lichen sclerosus (LS), urologic manifestations, and treatment options. MATERIALS AND METHODS: The Medline/PubMed and Embase databases were systematically reviewed for publications pertaining to LS. After applying inclusion and exclusion criteria, references were assessed for relevance to the pathophysiology, presentation, and treatment of LS by title and abstract review by 2 independent reviewers, yielding 186 articles for assessment. RESULTS: The contemporary understanding of the epidemiology and histology of LS is reviewed herein. Additionally, we explore in detail the 3 hypotheses regarding the pathophysiological mechanism contributing to disease presentation: infectious etiology, primary immune dysregulation, and the isotraumatopic response. We summarize the available biological evidence supporting each hypothesis. This discussion provides context for understanding LS morbidity and may spur new avenues of research. For the clinician, we review the clinical presentation of disease, including the risk of progression to squamous cell carcinoma. The current medical and surgical treatment options are also detailed. CONCLUSION: LS remains a potentially insidious disease which may lead to debilitating urinary and sexual dysfunction. Cross disciplinary research should aim for earlier detection, as well as more effective and durable treatment. The exact cause of LS remains unknown.


Assuntos
Balanite Xerótica Obliterante/diagnóstico , Líquen Escleroso e Atrófico/diagnóstico , Líquen Escleroso Vulvar/diagnóstico , Administração Tópica , Balanite Xerótica Obliterante/epidemiologia , Balanite Xerótica Obliterante/terapia , Biópsia , Circuncisão Masculina , Diagnóstico Diferencial , Progressão da Doença , Feminino , Glucocorticoides/uso terapêutico , Humanos , Líquen Escleroso e Atrófico/epidemiologia , Líquen Escleroso e Atrófico/terapia , Masculino , Pênis/patologia , Pênis/cirurgia , Prevalência , Resultado do Tratamento , Vulva/patologia , Líquen Escleroso Vulvar/tratamento farmacológico , Líquen Escleroso Vulvar/epidemiologia
8.
Urology ; 135: 139-145, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31586471

RESUMO

OBJECTIVE: To examine the most cited literature in urethral reconstruction, review types of work published, and observe research trends. METHODS: The Web of Sciences Sci-Expanded Index was used to conduct a search for urethral reconstruction. References were assessed for relevance to urethral reconstruction by 2 independent reviewers and a final list of the top 100 articles ranked by citation count was obtained. For each article, citation count, publication date, corresponding author, origin institution, origin country, topic area, study design, level of evidence, and origin journal were collected. RESULTS: The mean citation count per publication was 108 (median = 94.5; range = 69-366, SD = 43) with a total of 10,874 citations for all papers since 1970. The top 100 articles were published between 1973 and 2011, came from 19 different countries and 16 different journals. Nearly half were case series and most studies were Level III evidence or lower. The United States was the largest contributor to the top 100 with 56 publications, followed by Italy (14), England (12), and Egypt (7). "Outcomes of surgical treatment for urethral stricture disease" was the most prevalent topic area comprising 55 articles in the top 100, with most articles including descriptions or outcomes of novel surgical techniques. CONCLUSION: In this study, we discovered that the most cited literature in the field of urethral reconstruction is singularly focused and lacking in high levels of evidence. The top 100 cited articles originate primarily from the United States, focus on short-term outcomes after surgical treatment for urethral stricture disease, and are predominantly case series.


Assuntos
Bibliometria , Procedimentos de Cirurgia Plástica/métodos , Uretra/cirurgia , Estreitamento Uretral/cirurgia , Procedimentos Cirúrgicos Urológicos Masculinos/métodos , Humanos , Masculino , Procedimentos de Cirurgia Plástica/estatística & dados numéricos , Uretra/patologia , Estreitamento Uretral/patologia , Procedimentos Cirúrgicos Urológicos Masculinos/estatística & dados numéricos
9.
Chem Commun (Camb) ; 55(70): 10452-10455, 2019 Aug 27.
Artigo em Inglês | MEDLINE | ID: mdl-31411215

RESUMO

The surface properties of nanoparticles play an important role in their interactions with their surroundings. Silane reagents have been used for surface modifications to silica shells on iron oxide nanoparticles, but using these reagents presents some challenges. An alternative approach to modifying the surfaces of these silica shells was developed to impart different terminal functional groups, such as a thiol, alcohol, or carboxylic acid, through the use of alcohol-based reagents. This approach to surface functionalization of the core-shell particles was verified through chemical analyses and the attachment of gold nanoparticles. The use of the silanol-alcohol condensation reaction could be extended further to other surface functionalizations through the use of additional alcohol-based reagents.

10.
Langmuir ; 33(35): 8707-8715, 2017 09 05.
Artigo em Inglês | MEDLINE | ID: mdl-28556659

RESUMO

Alcohol-based monolayers were successfully formed on the surfaces of silicon oxides through reactions performed in polar aprotic solvents. Monolayers prepared from alcohol-based reagents have been previously introduced as an alternative approach to covalently modify the surfaces of silicon oxides. These reagents are readily available, widely distributed, and are minimally susceptible to side reactions with ambient moisture. A limitation of using alcohol-based compounds is that previous reactions required relatively high temperatures in neat solutions, which can degrade some alcohol compounds or could lead to other unwanted side reactions during the formation of the monolayers. To overcome these challenges, we investigate the condensation reaction of alcohols on silicon oxides carried out in polar aprotic solvents. In particular, propylene carbonate has been identified as a polar aprotic solvent that is relatively nontoxic, readily accessible, and can facilitate the formation of alcohol-based monolayers. We have successfully demonstrated this approach for tuning the surface chemistry of silicon oxide surfaces with a variety of alcohol containing compounds. The strategy introduced in this research can be utilized to create silicon oxide surfaces with hydrophobic, oleophobic, or charged functionalities.

11.
Langmuir ; 32(49): 13030-13039, 2016 12 13.
Artigo em Inglês | MEDLINE | ID: mdl-27951682

RESUMO

We demonstrate the formation of mixed monolayers derived from a microwave-assisted reaction of alcohols with silicon oxide surfaces in order to tune their surface oleophobicity. This simple, rapid method provides an opportunity to precisely tune the constituents of the monolayers. As a demonstration, we sought fluorinated alcohols and aliphatic alcohols as reagents to form monolayers from two distinct constituents for tuning the surface oleophobicity. The first aspect of this study sought to identify a fluorinated alcohol that formed monolayers with a relatively high surface coverage. It was determined that 1H,1H,2H,2H-perfluoro-1-octanol yielded high quality monolayers with a water contact angle (WCA) value of ∼110° and contact angle values of ∼80° with toluene and hexadecane exhibiting both an excellent hydrophobicity and oleophobicity. Tuning of the oleophobicity of the modified silicon oxide surfaces was achieved by controlling the molar ratio of 1H,1H,2H,2H-perfluoro-1-octanol within the reaction mixtures. Surface oleophobicity progressively decreased with a decrease in the fluorinated alcohol content while the monolayers maintained their hydrophobicity with WCA values of ∼110°. The simple and reliable approach to preparing monolayers of a tuned composition that is described in this article can be utilized to control the fluorocarbon content of the hydrophobic monolayers on silicon oxide surfaces.

12.
Elife ; 52016 10 11.
Artigo em Inglês | MEDLINE | ID: mdl-27725089

RESUMO

Metabolic studies suggest that the absorptive capacity of the small intestine for fructose is limited, though the molecular mechanisms controlling this process remain unknown. Here we demonstrate that thioredoxin-interacting protein (Txnip), which regulates glucose homeostasis in mammals, binds to fructose transporters and promotes fructose absorption by the small intestine. Deletion of Txnip in mice reduced fructose transport into the peripheral bloodstream and liver, as well as the severity of adverse metabolic outcomes resulting from long-term fructose consumption. We also demonstrate that fructose consumption induces expression of Txnip in the small intestine. Diabetic mice had increased expression of Txnip in the small intestine as well as enhanced fructose uptake and transport into the hepatic portal circulation. The deletion of Txnip in mice abolished the diabetes-induced increase in fructose absorption. Our results indicate that Txnip is a critical regulator of fructose metabolism and suggest that a diabetic state can promote fructose uptake.


Assuntos
Adsorção , Proteínas de Transporte/metabolismo , Diabetes Mellitus/fisiopatologia , Frutose/metabolismo , Tiorredoxinas/metabolismo , Animais , Modelos Animais de Doenças , Camundongos Endogâmicos C57BL , Camundongos Knockout
13.
Langmuir ; 32(29): 7284-93, 2016 07 26.
Artigo em Inglês | MEDLINE | ID: mdl-27396288

RESUMO

We demonstrate the method of a rapid covalent modification of silicon oxide surfaces with alcohol-containing compounds with assistance by microwave reactions. Alcohol-containing compounds are prevalent reagents in the laboratory, which are also relatively easy to handle because of their stability against exposure to atmospheric moisture. The condensation of these alcohols with the surfaces of silicon oxides is often hindered by slow reaction kinetics. Microwave radiation effectively accelerates this condensation reaction by heating the substrates and/or solvents. A variety of substrates were modified in this demonstration, such as silicon oxide films of various thicknesses, glass substrates such as microscope slides (soda lime), and quartz. The monolayers prepared through this strategy demonstrated the successful formation of covalent surface modifications of silicon oxides with water contact angles of up to 110° and typical hysteresis values of 2° or less. An evaluation of the hydrolytic stability of these monolayers demonstrated their excellent stability under acidic conditions. The techniques introduced in this article were successfully applied to tune the surface chemistry of silicon oxides to achieve hydrophobic, oleophobic, and/or charged surfaces.

14.
J Hand Surg Am ; 40(4): 790-7, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25639841

RESUMO

PURPOSE: To evaluate whether the lack of diversity in plastic and orthopedic surgery persists into hand surgery through assessment of trainee demographics. METHODS: Demographic data were obtained from compilations on graduate medical education by the Journal of the American Medical Association. Ethnic diversity was assessed using the proportions of minority trainees. We analyzed the trends in ethnic diversity in hand, orthopedic, and plastic surgery from 1995 to 2012 by evaluating changes in proportions of African American, Hispanic, and Asian trainees. In addition, we compared the proportions of minority trainees in various surgical specialties during 2009 to 2012. Trends in gender diversity were similarly analyzed using the proportions of female trainees. RESULTS: During 1995 to 2012, the proportions of minority and female trainees increased significantly in the fields of orthopedic, plastic, and hand surgery. To assess the current state of diversity in various specialties, we compared minority and female population proportions using pooled 2009 to 2012 data. The percentage of non-Caucasian trainees in hand surgery was significantly higher than that in orthopedic sports medicine and orthopedic surgery and significantly lower than in general surgery. The percentage of female trainees in hand surgery was significantly higher than that in orthopedic sports medicine and orthopedic surgery and significantly lower than in plastic and general surgery. CONCLUSIONS: Ethnic and gender diversity in hand surgery increased significantly between 1995 and 2012. Women constitute a fifth of hand surgery trainees. Efforts to increase diversity should be further pursued using proven strategies and innovating new ones. CLINICAL RELEVANCE: Diversity in the medical field has shown to be a beneficial factor in many aspects including research productivity and patient care. Understanding how the field of hand surgery has changed with regard to the diversity of its trainees may aid in providing more equitable and effective health care.


Assuntos
Bolsas de Estudo/estatística & dados numéricos , Mãos/cirurgia , Ortopedia , Cirurgiões/estatística & dados numéricos , Etnicidade/estatística & dados numéricos , Feminino , Humanos , Masculino , Ortopedia/educação , Cirurgia Plástica/educação , Recursos Humanos
15.
Chem Commun (Camb) ; 51(11): 2060-3, 2015 Feb 07.
Artigo em Inglês | MEDLINE | ID: mdl-25533205

RESUMO

We demonstrate the use of microwave radiation as a tool to accelerate the formation of perfluoroalkylsilane based self-assembled monolayers (SAMs) on silicon oxide surfaces. Surface coverage of these SAMs of monoreactive perfluoroalkylsilanes increased in proportion to the duration over which the solutions were heated by microwave radiation.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA