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1.
Chem Soc Rev ; 53(5): 2435-2529, 2024 Mar 04.
Artículo en Inglés | MEDLINE | ID: mdl-38294167

RESUMEN

Penetrant-induced plasticization has prevented the industrial deployment of many polymers for membrane-based gas separations. With the advent of microporous polymers, new structural design features and unprecedented property sets are now accessible under controlled laboratory conditions, but property sets can often deteriorate due to plasticization. Therefore, a critical understanding of the origins of plasticization in microporous polymers and the development of strategies to mitigate this effect are needed to advance this area of research. Herein, an integrative discussion is provided on seminal plasticization theory and gas transport models, and these theories and models are compared to an exhaustive database of plasticization characteristics of microporous polymers. Correlations between specific polymer properties and plasticization behavior are presented, including analyses of plasticization pressures from pure-gas permeation tests and mixed-gas permeation tests for pure polymers and composite films. Finally, an evaluation of common and current state-of-the-art strategies to mitigate plasticization is provided along with suggestions for future directions of fundamental and applied research on the topic.

2.
Cancer ; 130(11): 2051-2059, 2024 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-38146683

RESUMEN

BACKGROUND: Communication between caregivers and clinical team members is critical for transitional care, but its quality and potential impact on outcomes are not well understood. This study reports on caregiver-reported quality of communication with clinical team members in the postpancreatectomy period and examines associations of these reports with patient and caregiver outcomes. METHODS: Caregivers of patients with pancreatic and periampullary malignancies who had undergone pancreatectomy were surveyed. Instrument measures assessed care experiences using the Caregiver Perceptions About Communication with Clinical Team Members (CAPACITY) instrument. The instrument has two main subscales: communication, assessing the extent to which providers helped caregivers comprehend details of clinical visits, and capacity, defined as the extent to which providers assessed whether caregivers were able to care for patients. RESULTS: Of 265 caregivers who were approached, 240 (90.6%) enrolled in the study. The mean communication and capacity subscale scores were 2.7 ± 0.6 and 1.5 ± 0.6, respectively (range, 0-4 [higher = better]). Communication subscale scores were lower among caregivers of patients who experienced (vs. those who did not experience) a 30-day readmission (2.6 ± 0.5 vs. 2.8 ± 0.6, respectively; p = .047). Capacity subscale scores were inversely associated with restriction in patient daily activities (a 0.04 decrement in the capacity score for every 1 point in daily activity restriction; p = .008). CONCLUSIONS: After pancreatectomy, patients with pancreatic and periampullary cancer whose caregivers reported worse communication with care providers were more likely to experience readmission. Caregivers of patients with greater daily activity restrictions were less likely to report being asked about the caregiver's skill and capacity by clinicians. PLAIN LANGUAGE SUMMARY: This prospective study used a validated survey instrument and reports on the quality of communication between health care providers and caregivers as reported by caregivers of patients with pancreatic and periampullary cancer after pancreatectomy. In an analysis of 240 caregivers enrolled in the study, lower communication scores (the extent to which providers helped caregivers understand clinical details) were associated with higher odds of 30-day patient readmission to the hospital. In addition, lower capacity scores (the extent to which providers assessed caregivers' ability to care for patients) were associated with greater impairment in caregivers. The strikingly low communication quality and capacity assessment scores suggest substantial room for improvement, with the potential to improve both caregiver and patient outcomes.


Asunto(s)
Cuidadores , Comunicación , Pancreatectomía , Neoplasias Pancreáticas , Humanos , Neoplasias Pancreáticas/cirugía , Cuidadores/psicología , Masculino , Femenino , Persona de Mediana Edad , Anciano , Adulto , Ampolla Hepatopancreática , Encuestas y Cuestionarios , Readmisión del Paciente/estadística & datos numéricos , Neoplasias del Conducto Colédoco/cirugía
3.
N Engl J Med ; 383(2): 129-140, 2020 07 09.
Artículo en Inglés | MEDLINE | ID: mdl-32640131

RESUMEN

BACKGROUND: Injuries from falls are major contributors to complications and death in older adults. Despite evidence from efficacy trials that many falls can be prevented, rates of falls resulting in injury have not declined. METHODS: We conducted a pragmatic, cluster-randomized trial to evaluate the effectiveness of a multifactorial intervention that included risk assessment and individualized plans, administered by specially trained nurses, to prevent fall injuries. A total of 86 primary care practices across 10 health care systems were randomly assigned to the intervention or to enhanced usual care (the control) (43 practices each). The participants were community-dwelling adults, 70 years of age or older, who were at increased risk for fall injuries. The primary outcome, assessed in a time-to-event analysis, was the first serious fall injury, adjudicated with the use of participant report, electronic health records, and claims data. We hypothesized that the event rate would be lower by 20% in the intervention group than in the control group. RESULTS: The demographic and baseline characteristics of the participants were similar in the intervention group (2802 participants) and the control group (2649 participants); the mean age was 80 years, and 62.0% of the participants were women. The rate of a first adjudicated serious fall injury did not differ significantly between the groups, as assessed in a time-to-first-event analysis (events per 100 person-years of follow-up, 4.9 in the intervention group and 5.3 in the control group; hazard ratio, 0.92; 95% confidence interval [CI], 0.80 to 1.06; P = 0.25). The rate of a first participant-reported fall injury was 25.6 events per 100 person-years of follow-up in the intervention group and 28.6 events per 100 person-years of follow-up in the control group (hazard ratio, 0.90; 95% CI, 0.83 to 0.99; P = 0.004). The rates of hospitalization or death were similar in the two groups. CONCLUSIONS: A multifactorial intervention, administered by nurses, did not result in a significantly lower rate of a first adjudicated serious fall injury than enhanced usual care. (Funded by the Patient-Centered Outcomes Research Institute and others; STRIDE ClinicalTrials.gov number, NCT02475850.).


Asunto(s)
Accidentes por Caídas/prevención & control , Lesiones Accidentales/prevención & control , Manejo de Atención al Paciente/métodos , Accidentes por Caídas/mortalidad , Accidentes por Caídas/estadística & datos numéricos , Lesiones Accidentales/epidemiología , Anciano , Anciano de 80 o más Años , Femenino , Hospitalización/estadística & datos numéricos , Humanos , Incidencia , Vida Independiente , Masculino , Medicina de Precisión , Medición de Riesgo , Factores de Riesgo
4.
Mol Vis ; 29: 256-265, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38222449

RESUMEN

Purpose: The Algerbrush II has been widely used to induce corneal and limbal injuries in animal models. The extent of injury varies with the duration of exposure, pressure from the placement of the burr, and the size of the burr. However, no study has explored the correlation between the duration of exposure and the severity of injury in mouse model with corneal and limbal stem cell deficiency (LSCD) induced using the Algerbrush II. Therefore, this study aimed to evaluate the variations in the severity of corneal and limbal injury with different durations of the Algerbrush II application. Methods: The entire cornea and limbus of C57BL/6 mice were injured for 30-45 s, 60-75 s, 90-120 s, and 3-4 min. Photography and slit-lamp examination was performed on days 0, 2, 4, and 7, followed by hematoxylin & eosin, periodic acid-Schiff, and immunohistochemical staining. Statistical analysis was performed using one way ANOVA analysis. Results: A duration of 30-45 s of injury was found to be sufficient to induce superficial corneal and limbal epithelial debridement and re-epithelialization was completed in all eyes by day 7; however, clinical signs of LSCD were not observed in all mice. Increasing the exposure time to 90-120 s resulted in central 2+ corneal opacity with limbal and paracentral corneal neovascularization. All eyes injured for 3-4 min displayed clinical signs of LSCD, such as persistent epithelial defects on day 7 after the injury, central corneal neovascularization, and 2.2+ diffuse corneal opacity. Histological signs of LSCD, including goblet cell metaplasia and K13 expression on the corneal surface, were observed in all injured eyes. Conclusions: Our findings suggest that the duration of injury is an important factor influencing the severity of LSCD in a murine model of injury. A 1-mm rotating burr was found to be more effective for keratectomy and pigment release, whereas a 0.5-mm burr was more suitable for corneal epithelial debridement.


Asunto(s)
Enfermedades de la Córnea , Neovascularización de la Córnea , Opacidad de la Córnea , Epitelio Corneal , Limbo de la Córnea , Animales , Ratones , Epitelio Corneal/patología , Neovascularización de la Córnea/patología , Modelos Animales de Enfermedad , Ratones Endogámicos C57BL , Opacidad de la Córnea/patología , Enfermedades de la Córnea/metabolismo
5.
Glycoconj J ; 40(5): 587-608, 2023 10.
Artículo en Inglés | MEDLINE | ID: mdl-37695422

RESUMEN

The binding property of Con A has been studied intensively and applied widely to glycoconjugates / glycobiology for over 80 years. However, its role and functional relationship of Con A with these mammalian structural units, glycotopes, N-glycan chains, as well as their polyvalent forms in N-glycoproteins involved in the Con A-glycan interactions have not been well defined and organized. In this study, the recognition factors involved in these interactions were analyzed by our well developed method- the enzyme linked lectinosorbent (ELLSA) and inhibition assay. Based on all the data obtained, it is concluded that Con A, as previously reported, has a relatively broad and wide recognition ability of the Manα1 → and Glcα1 → related glycans. It reacted not only strongly with yeast mannan and glycogens, but also bound well with a large number of mammalian N-glycans, including the N-glycans of rat sublingual gp (RSL), human Tamm-Horsfall glycoprotein (THGP), thyroglobulin and lactoferrin. The recognition specificity of Con A towards ligands, expressed by Molar Relative Potency (Molar R.P.), in a decreasing order is as follows: α1 → 3, α1 → 6 Mannopentaose (M5) and Biantennary N-linked core pentasaccharide (MDi) ≥ α1 → 3, α1 → 6 Mannotriose (M3) > Manα1 → 3Man (α1 → 3Mannobiose), Manα1 → 2Man (α1 → 2Mannobiose), Manα1 → 6Man (α1 → 6Mannobiose), Manα1 → 4Man (α1 → 4Mannobiose) > GlcNAcß1 → 2Man (ß1 → 2 N-Acetyl glucosamine-mannose) > Manα1 → /Glcα1 → > Man > Glc, while Gal / GalNAc were inactive. Furthermore, the Man related code system, in this study, is proposed to express by both numbers of Man and GlcNAcß1 → branches (M3 to M9 / MMono to Penta etc.) and a table of three Manα1 → and Glcα1 → related biomasses of six recognition factors involved in the Con A-glycan interactions has also been demonstrated. These themes should be one of the most valuable advances since 1980s.


Asunto(s)
Glicoproteínas , Polisacáridos , Animales , Humanos , Ratas , Polisacáridos/química , Glicoproteínas/química , Concanavalina A , Glicoconjugados , Mamíferos/metabolismo
6.
Glycoconj J ; 40(4): 383-399, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-37266898

RESUMEN

Dolichos biflorus agglutinin (DBA) is one of the well known plant lectins that are widely used in clinical serology to differentiate human blood group A1 and A2 erythrocytes and also applied to glycobiology. However, the knowledge of recognition factors of polyvalent (super) glycotopes in glycans and the roles of functional group and epimer in monosaccharide (sub-monosaccharide recognition factor) have not been well established. The size and shape of the recognition (combining) site of DBA has not been clearly defined. In this study, many importnat recognition factors of DBA-glycan binding were characterized by our established enzyme-linked lectinosorbent (ELLSA) and inhibition assays. The results of these assays showed that the intensity profile of the recognition factors for the major combining site of DBA was expressed by Mass relative potency (Mass R.P.) and shown by decreasing order of high density of polyvalent GalNAcα1 → (super glycotopes, 3.7 × 103) >> the corresponding ß anomers >> monomeric GalNAcα1 → related glycotopes (GalNAc as 1.0) >> their GalNAc ß-anomers >> Gal (absence of NHCH3CO at carbon-2 of GAlNAc) and GlcNAc (different epimer of Carbon-4 in GalNAc). From the all data available, it is proposed that the combining site of DBA should consist of a small cavity shape as major site and most complementary to monomeric GalNAcα → located at both terminal reducing end (Tn) and nonreducing end of glycan chains, and with a wide and broad area as subsite to accomodate from mono- to tetra-saccharides (GalNAcß, Galß1 → 3/4GlcNAc, lFuc1 → 2Galß1 → 3/4GlcNAc, GalNAcß1 → 3Galα1 → 4Galß1 → 4Glc) at the nonreducing side. In this study, it has provided the most (comprehensive) recognition knowledge of DBA-glycan interactions at the factors of glycotope, super glycotope/sub-monosaccharide levels. Thus, it should expand and upgrade the conventional concept of the combining (recognition) site of DBA since 1980s.


Asunto(s)
Glicoproteínas , Lectinas , Humanos , Lectinas/metabolismo , Glicoproteínas/química , Lectinas de Plantas/química , Polisacáridos/química , Monosacáridos , Sitios de Unión
7.
Psychother Psychosom ; 92(6): 399-409, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38118426

RESUMEN

INTRODUCTION: Adverse events (AEs) are a leading cause of patient morbidity and mortality, greatly impacting healthcare providers' well-being (second victim (SV) phenomenon). Since it is not accurately captured by existing psychometric instruments, we developed a clinimetric instrument for assessing SVs' emotional distress before and after an AE. METHODS: Content validity and clinical utility of the WITHSTAND-PSY Questionnaire (WS-PSY-Q) were examined using cognitive interviews. Rasch analysis (n = 284) was applied for clinimetric assessment (i.e., construct, concurrent, and clinical validity, internal consistency), considering two crucial psychological facets of the SV phenomenon (1st: emotional impact of the AE, 2nd: current emotional state). RESULTS: The Rasch partial credit model was used. The 1st facet demonstrated overall acceptable clinimetric properties with the subscale anxiety meeting clinimetric threshold values (e.g., all items with ordered thresholds, Loevinger's coefficient h ≥ 0.40; Person Separation Reliability Index (PSI) = 0.7). The 2nd facet showed overall better clinimetric properties for both subscales (e.g., h ≥ 0.40, PSI = 0.82 and 0.79, respectively; receiver operating characteristic area of 0.80 and 0.86, respectively). For both datasets, item fit statistics, except those for item 19, were within the critical range (z-score < ±2.5), and meaningful differential functioning analysis was observed for only 4 (out of 24) items. Local dependency was not observed, except for two item couples in the depression subscales. CONCLUSIONS: The WS-PSY-Q is the first clinimetric tool assessing SVs' emotional distress. It should be regarded as part of the armamentarium used by clinicians to assess in-depth healthcare providers' psychological reactions in the aftermath of an AE to mitigate burnout and allostatic overload.


Asunto(s)
Ansiedad , Distrés Psicológico , Humanos , Reproducibilidad de los Resultados , Personal de Salud , Encuestas y Cuestionarios , Psicometría
8.
J Vasc Interv Radiol ; 34(5): 840-848.e5, 2023 05.
Artículo en Inglés | MEDLINE | ID: mdl-36758741

RESUMEN

PURPOSE: To assess the responsiveness, defined as the ability to detect change in a patient's health or function, of the Patient-Reported Outcome Measure for Vascular Malformation (PROVAM) questionnaire in a cohort of patients with low-flow vascular malformations (VMs). MATERIALS AND METHODS: PROVAM was previously developed to assess symptoms, functional limitations, and social/emotional effects experienced by patients with VMs. This is a prospective cohort study of 56 patients with venous and lymphatic VMs who completed at least 2 PROVAM questionnaires, of whom 43 had undergone treatment with sclerotherapy in the interim between questionnaires. External responsiveness was assessed using a receiver operating characteristic (ROC) curve to ascertain whether a change in the total PROVAM score predicts whether patients reported symptom improvement and by correlating the change in the total PROVAM score and change in symptoms reported during clinic visit. Internal responsiveness was evaluated using Wilcoxon signed rank test, Cohen d effect size (ESp), and standard response mean difference (SRM). RESULTS: The total PROVAM score demonstrated excellent discrimination for symptom improvement with an area under the ROC curve of 0.856. There was a statistically significant, moderate positive correlation between the change in the total PROVAM score and the change in patient symptoms as determined from clinical visits (Spearman correlation coefficient [rs] = 0.67, P < .001). The total PROVAM score and all subdomain scores improved significantly after treatment (all P < .05). ESp and SRM were 0.80 and 0.83, respectively. CONCLUSIONS: PROVAM is responsive to improvement after treatment and may be useful to assess health-related quality of life in patients treated for VMs.


Asunto(s)
Calidad de Vida , Malformaciones Vasculares , Humanos , Calidad de Vida/psicología , Estudios Prospectivos , Encuestas y Cuestionarios , Medición de Resultados Informados por el Paciente , Malformaciones Vasculares/diagnóstico por imagen , Malformaciones Vasculares/terapia , Resultado del Tratamiento
9.
BMC Health Serv Res ; 23(1): 751, 2023 Jul 13.
Artículo en Inglés | MEDLINE | ID: mdl-37443003

RESUMEN

BACKGROUND: Pandemics such as COVID-19 pose threats to the physical safety of healthcare workers and students. They can have traumatic experiences affecting their personal and professional life. Increasing rates of burnout, substance abuse, depression, and suicide among healthcare workers have already been identified, thus making mental health and psychological wellbeing of the healthcare workers a major issue. The aim of this systematic review is to synthesize the characteristics of emotional support programs and interventions targeted to healthcare workers and students since the onset of COVID-19 and other SARS-CoV pandemics and to describe the effectiveness and experiences of these programs. METHOD: This was a mixed method systematic review. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were followed, and the review was registered on PROSPERO [CRD42021262837]. Searches were conducted using Medline, CINAHL, PsycINFO, Cochrane Library, and Scopus databases. The COVIDENCE systematic review management system was used for data selection and extraction by two independent reviewers. The JBI (Joanna Briggs Institute) critical appraisal tools were used to assess the quality of selected studies by two additional reviewers. Finally, data extraction and narrative analysis were conducted. RESULTS: The search retrieved 3161 results including 1061 duplicates. After screening, a total of 19 articles were included in this review. Participants in studies were nurses, physicians, other hospital staff, and undergraduate medical students mostly working on the front-line with COVID-19 patients. Publications included RCTs (n = 4), quasi-experimental studies (n = 2), cross-sectional studies (n = 6), qualitative interview studies (n = 3), and systematic reviews (n = 4). Most (63.4%) of the interventions used online or digital solutions. Interventions mostly showed good effectiveness (support-seeking, positive emotions, reduction of distress symptoms etc.) and acceptance and were experienced as helpful, but there were some conflicting results. CONCLUSION: Healthcare organizations have developed support strategies focusing on providing emotional support for these healthcare workers and students, but it is difficult to conclude whether one program offers distinct benefit compared to the others. More research is needed to evaluate the comparative effectiveness of emotional support interventions for health workers.


Asunto(s)
COVID-19 , Coronavirus Relacionado al Síndrome Respiratorio Agudo Severo , Humanos , COVID-19/epidemiología , Pandemias/prevención & control , Estudios Transversales , Personal de Salud , Adaptación Psicológica , Estudiantes
10.
JAMA ; 329(21): 1840-1847, 2023 06 06.
Artículo en Inglés | MEDLINE | ID: mdl-37278813

RESUMEN

Importance: US hospitals report data on many health care quality metrics to government and independent health care rating organizations, but the annual cost to acute care hospitals of measuring and reporting quality metric data, independent of resources spent on quality interventions, is not well known. Objective: To evaluate externally reported inpatient quality metrics for adult patients and estimate the cost of data collection and reporting, independent of quality-improvement efforts. Design, Setting, and Participants: Retrospective time-driven activity-based costing study at the Johns Hopkins Hospital (Baltimore, Maryland) with hospital personnel involved in quality metric reporting processes interviewed between January 1, 2019, and June 30, 2019, about quality reporting activities in the 2018 calendar year. Main Outcomes and Measures: Outcomes included the number of metrics, annual person-hours per metric type, and annual personnel cost per metric type. Results: A total of 162 unique metrics were identified, of which 96 (59.3%) were claims-based, 107 (66.0%) were outcome metrics, and 101 (62.3%) were related to patient safety. Preparing and reporting data for these metrics required an estimated 108 478 person-hours, with an estimated personnel cost of $5 038 218.28 (2022 USD) plus an additional $602 730.66 in vendor fees. Claims-based (96 metrics; $37 553.58 per metric per year) and chart-abstracted (26 metrics; $33 871.30 per metric per year) metrics used the most resources per metric, while electronic metrics consumed far less (4 metrics; $1901.58 per metric per year). Conclusions and Relevance: Significant resources are expended exclusively for quality reporting, and some methods of quality assessment are far more expensive than others. Claims-based metrics were unexpectedly found to be the most resource intensive of all metric types. Policy makers should consider reducing the number of metrics and shifting to electronic metrics, when possible, to optimize resources spent in the overall pursuit of higher quality.


Asunto(s)
Hospitales , Reportes Públicos de Datos en Atención de Salud , Mejoramiento de la Calidad , Calidad de la Atención de Salud , Humanos , Atención a la Salud/economía , Atención a la Salud/normas , Atención a la Salud/estadística & datos numéricos , Hospitales/normas , Hospitales/estadística & datos numéricos , Hospitales/provisión & distribución , Mejoramiento de la Calidad/economía , Mejoramiento de la Calidad/normas , Mejoramiento de la Calidad/estadística & datos numéricos , Calidad de la Atención de Salud/economía , Calidad de la Atención de Salud/estadística & datos numéricos , Estudios Retrospectivos , Adulto , Estados Unidos/epidemiología , Revisión de Utilización de Seguros/economía , Revisión de Utilización de Seguros/normas , Revisión de Utilización de Seguros/estadística & datos numéricos , Seguridad del Paciente/economía , Seguridad del Paciente/normas , Seguridad del Paciente/estadística & datos numéricos , Economía Hospitalaria/estadística & datos numéricos
11.
Glycoconj J ; 39(5): 633-651, 2022 10.
Artículo en Inglés | MEDLINE | ID: mdl-35962217

RESUMEN

Galα1 → and GalNAcα1 → are the two essential key sugars in human blood group AB active glycotopes, in which GalNAcα1 → related sequences are located at both sides of the nonreducing and the reducing ends of human blood group A active O-glycans. It is also found at the nonreducing ends of GlcNAc N-glycans and glycosphingolipid(GSL) of human blood group A active glycotopes (Ah) and Forssman antigen (Fp). When monosaccharides and their α, ß anomers are involved in basic units to express the complex size of the combining sites of the GalNAcα1 → specific lectins, they can be divided into a cavity site to accommodate the GalNAcα → key sugar and a subsite with a wide and broad range of recognition area to adopt the rest part of sugar sequences or glycotopes. The function of the subsite is assumed to act as an enhancement factor to increase its affinity power. The following three points are the theme of this mini review: (1) the loci and distribution of the GalNAcα1 → related glycotopes in mammalian glycoconjugates are illustrated and their chemical structures are advanced by the expression of the disaccharide units and code system; (2) the sizes and motifs of GalNAcα1 → specific lectin-glycan interactions are given and (3) the role of the polyvalent blood group Ah and Bh glycotopes as blood group AB antigens are proposed. These three highlights should provide an essential background required for the advances in this field.


Asunto(s)
Antígenos de Grupos Sanguíneos , Lectinas , Animales , Antígenos de Grupos Sanguíneos/química , Disacáridos/química , Glicoconjugados/metabolismo , Humanos , Lectinas/genética , Lectinas/metabolismo , Mamíferos/metabolismo , Polisacáridos/química
12.
AIDS Care ; 34(9): 1144-1150, 2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-34180726

RESUMEN

In the seven years since the HIV Organ Policy Equity (HOPE) Act made HIV-positive organ donation to HIV-positive recipients legally permissible in the United States, there have been fewer HIV-positive organ donations than expected. Organ procurement organizations (OPOs) play a key role in the transplant system and barriers at OPOs may be partly responsible for the relatively low number of HIV-positive donors. To understand potential OPO barriers, we conducted semi-structured interviews with 20 OPO staff members. Interviews were recorded, transcribed, and analyzed using a conventional content analytic approach with two coders. OPO staff had high levels of knowledge about HOPE. Many had evaluated referrals of HIV-positive donors and approached families for authorization. Barriers to HIV-positive organ recovery identified included obtaining authorization for donation, potentially disclosing HIV status to next-of-kin, and fear of HIV infection among those engaged in organ recovery. Strategies to overcome these barriers include providing continuing education about the specific tasks required to procure organs from HIV-positive donors, implementing targeted interventions to reduce fear of infection, and developing partnerships with HIV advocacy and care organizations. Given the central role OPOs play, HIV-positive donations are unlikely to occur in significant numbers unless these barriers can be overcome.


Asunto(s)
Infecciones por VIH , Trasplante de Órganos , Obtención de Tejidos y Órganos , Infecciones por VIH/prevención & control , Humanos , Derivación y Consulta , Donantes de Tejidos , Estados Unidos
13.
AIDS Care ; 34(8): 949-956, 2022 08.
Artículo en Inglés | MEDLINE | ID: mdl-34191663

RESUMEN

The health-related quality of life (HRQoL) among persons living with HIV (PLWHA) who initiate ART during acute HIV infection (AHI) is not well studied. Participants in the SEARCH010/RV254 cohort initiated ART during AHI. They completed the Thai version of the World Health Organisation Quality of Life instrument-BREF (WHOQOL-BREF) and Patient Health Questionnaire-9 (PHQ-9) prior to ART initiation and 24 weeks later. Of 452 participants, 406 (90%) completed the WHOQOL-BREF. The median age was 26 years (IQR 22-31), and 98% were men. All WHOQOL-BREF domains demonstrated good internal consistency (Cronbach's alpha >0.70). Confirmatory factor analysis validated the WHOQOL-BREF model. 90% of Pearson correlations between domain scores and general facet items were >0.50. HRQoL in all domains was worse among those with at least moderately severe depression (PHQ-9 ≥ 10) (p<0.0001), supporting discriminant validity. At 24 weeks, there was an improvement of scores in all domains (physical, psychological, social, and environmental) and general facet items (p<0.0001), and the range of mean domain scores was 14.7-15.6 (SD 2.3-2.8). The majority of participants (58-63%) had improved HRQoL in the physical, psychological and environmental domains. It is concluded that HRQoL improves 6 months after initiation of ART in AHI, suggesting a benefit of early ART initiation.


Asunto(s)
Infecciones por VIH , Calidad de Vida , Adulto , Femenino , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/psicología , Humanos , Masculino , Psicometría , Reproducibilidad de los Resultados , Encuestas y Cuestionarios , Tailandia/epidemiología , Organización Mundial de la Salud
14.
Chem Rev ; 120(16): 8161-8266, 2020 08 26.
Artículo en Inglés | MEDLINE | ID: mdl-32608973

RESUMEN

Metal-organic frameworks (MOFs) represent the largest known class of porous crystalline materials ever synthesized. Their narrow pore windows and nearly unlimited structural and chemical features have made these materials of significant interest for membrane-based gas separations. In this comprehensive review, we discuss opportunities and challenges related to the formation of pure MOF films and mixed-matrix membranes (MMMs). Common and emerging separation applications are identified, and membrane transport theory for MOFs is described and contextualized relative to the governing principles that describe transport in polymers. Additionally, cross-cutting research opportunities using advanced metrologies and computational techniques are reviewed. To quantify membrane performance, we introduce a simple membrane performance score that has been tabulated for all of the literature data compiled in this review. These data are reported on upper bound plots, revealing classes of MOF materials that consistently demonstrate promising separation performance. Recommendations are provided with the intent of identifying the most promising materials and directions for the field in terms of fundamental science and eventual deployment of MOF materials for commercial membrane-based gas separations.

15.
Qual Life Res ; 31(6): 1711-1718, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-34533759

RESUMEN

PURPOSE: To identify patient-level barriers and facilitators to completion of patient-reported outcomes measures (PROMs) in a hand and upper extremity clinic in Baltimore, Maryland. METHODS: We conducted 12 h of direct observation of PROM completion (October-November, 2020). Ethnographic observation memos were qualitatively analyzed for barriers and facilitators using rapid thematic analysis. Informed by observation findings, we conducted 17 semi-structured interviews with mixed-literacy patients, caregivers, and clinic staff to understand the patient experience when completing PROMs (November 2020-March 2021). We identified initial themes through inductive and deductive framework analysis and validated findings through subsequent interviews with member-checking. RESULTS: We identified nine patient-level factors that influence PROM completion: platform design, print literacy, health literacy, technology literacy, language proficiency, physical functioning, vision, cognitive functioning, and time. CONCLUSIONS: There are multiple distinct patient-level factors that affect PROM completion. Failure to consider these factors in PROM design and implementation may lower completion rates or prevent accurate completion, undermining PROM validity. Because certain factors affect minority populations at disproportionate rates, this may also contribute to existing health disparities.


Asunto(s)
Medición de Resultados Informados por el Paciente , Calidad de Vida , Instituciones de Atención Ambulatoria , Humanos , Calidad de Vida/psicología
16.
Clin Trials ; 19(3): 277-284, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-35094586

RESUMEN

BACKGROUND: The assessment of patient-reported outcomes in clinical trials has enormous potential to promote patient-centred care, but for this potential to be realized, the patient-reported outcomes must be captured effectively and communicated clearly. Over the past decade, methodologic tools have been developed to inform the design, analysis, reporting, and interpretation of patient-reported outcome data from clinical trials. We formed the PROTEUS-Trials Consortium (Patient-Reported Outcomes Tools: Engaging Users and Stakeholders) to disseminate and implement these methodologic tools. METHODS: PROTEUS-Trials are engaging with patient, clinician, research, and regulatory stakeholders from 27 organizations in the United States, Canada, Australia, the United Kingdom, and Europe to develop both organization-specific and cross-cutting strategies for implementing and disseminating the methodologic tools. Guided by the Knowledge-to-Action framework, we conducted consortium-wide webinars and meetings, as well as individual calls with participating organizations, to develop a workplan, which we are currently executing. RESULTS: Six methodologic tools serve as the foundation for PROTEUS-Trials dissemination and implementation efforts: the Standard Protocol Items: Recommendations for Interventional Trials-patient-reported outcome extension for writing protocols with patient-reported outcomes, the International Society for Quality of Life Research Minimum Standards for selecting a patient-reported outcome measure, Setting International Standards in Analysing Patient-Reported Outcomes and Quality of Life Endpoints Data Consortium recommendations for patient-reported outcome data analysis, the Consolidated Standards for Reporting of Trials-patient-reported outcome extension for reporting clinical trials with patient-reported outcomes, recommendations for the graphic display of patient-reported outcome data, and a Clinician's Checklist for reading and using an article about patient-reported outcomes. The PROTEUS-Trials website (www.TheProteusConsortium.org) serves as a central repository for the methodologic tools and associated resources. To date, we have developed (1) a roadmap to visually display where each of the six methodologic tools applies along the clinical trial trajectory, (2) web tutorials that provide guidance on the methodologic tools at different levels of detail, (3) checklists to provide brief summaries of each tool's recommendations, (4) a handbook to provide a self-guided approach to learning about the tools and recommendations, and (5) publications that address key topics related to patient-reported outcomes in clinical trials. We are also conducting organization-specific activities, including meetings, presentations, workshops, and webinars to publicize the existence of the methodologic tools and the PROTEUS-Trials resources. Work to develop communications strategies to ensure that PROTEUS-Trials reach key audiences with relevant information about patient-reported outcomes in clinical trials and PROTEUS-Trials is ongoing. DISCUSSION: The PROTEUS-Trials Consortium aims to help researchers generate patient-reported outcome data from clinical trials to (1) enable investigators, regulators, and policy-makers to take the patient perspective into account when conducting research and making decisions; (2) help patients understand treatment options and make treatment decisions; and (3) inform clinicians' discussions with patients regarding treatment options. In these ways, the PROTEUS Consortium promotes patient-centred research and care.


Asunto(s)
Medición de Resultados Informados por el Paciente , Calidad de Vida , Ensayos Clínicos como Asunto , Toma de Decisiones , Humanos , Proteus , Proyectos de Investigación , Estados Unidos
17.
Brain Inj ; 36(8): 911-920, 2022 07 03.
Artículo en Inglés | MEDLINE | ID: mdl-35918848

RESUMEN

PRIMARY OBJECTIVE: To review the pathway to care for treatment and management of patients receiving visual and vestibular rehabilitation after mild traumatic brain injury (mTBI). METHODS & PROCEDURES: English scientific peer-reviewed articles from PubMed, CINAHL, Embase, and PsycINFO between 2000 and 2020 were first screened by title and abstract, then those selected underwent full-text review and analysis. MAIN OUTCOMES & RESULTS: The database search yielded 1640 results and after title and abstract review, 75 articles were selected for full-text screening, from which 8 were included in the qualitative synthesis. Current evidence includes a limited number of retrospective cohort studies and case studies. CONCLUSIONS: Many patients with visual and vestibular deficits following mTBI do not receive rehabilitation services until months following their injury as there is no standardized pathway to care for patients for visual and vestibular rehabilitation. Barriers to establishing a standardized pathway are the lack of natural history data for visual and vestibular function following mTBI and the lack of randomized clinical trials establishing the efficacy of rehabilitation in patients following mTBI.


Asunto(s)
Conmoción Encefálica , Vestíbulo del Laberinto , Conmoción Encefálica/diagnóstico , Humanos , Estudios Retrospectivos
18.
Ophthalmic Plast Reconstr Surg ; 38(2): 160-165, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-34293783

RESUMEN

PURPOSE: Despite increasing numbers of women oculoplastic surgeons, they remain underrepresented within the subspecialty. The purpose of this study was to analyze trends in gender authorship within the field of ophthalmic plastic and reconstructive surgery. METHODS: This retrospective observational study sampled articles published in Ophthalmic Plastic and Reconstructive Surgery (OPRS) and Orbit during the years 1985, 1995, 2005, 2015, and 2020. Data reviewed included article type, total number of authors, and the gender of each article's first and senior author. RESULTS: Nine hundred ninety-nine articles were analyzed, including 701 in OPRS and 298 in Orbit. Of 3,716 total authors, 1,151 (31%) were women, including 297 (29.7%) first authors, and 191 (21.5%) senior authors. Women authorship in OPRS in 1985 (first, 3.9%; senior, 3.3%; all, 3.2%) significantly increased by 2020 (first, 44.6%; senior, 27.9%; all, 42%). Women authorship in Orbit in 1985 (first, 0%; senior, 4.5%; all, 7.4%) also significantly increased by 2020 (first, 43.3%; senior, 34%; all, 42.9%). In a subanalysis of OPRS original investigations alone, women first authorship increased from 3.1% in 1985 to 35.8% in 2020 (p < 0.001) and women senior authorship increased from 4.3% in 1985 to 25% in 2020 (p = 0.001). In a subanalysis of Orbit original investigations alone, women first authorship increased from 0% in 1985 to 65.4% in 2020 (p < 0.001) and women senior authorship increased from 5.3% in 1985 to 42.3% in 2020 (p < 0.001). CONCLUSIONS: Despite a significant increase in women authorship over the past several decades, women remain underrepresented within the oculoplastic literature, particularly in regard to senior authorship. When considering original investigations alone, there has been a significant increase in women first and senior authorship in both OPRS and Orbit.


Asunto(s)
Oftalmólogos , Procedimientos de Cirugía Plástica , Cirujanos , Autoria , Femenino , Humanos , Procesamiento de Imagen Asistido por Computador , Masculino
19.
J Gen Intern Med ; 36(3): 772-774, 2021 03.
Artículo en Inglés | MEDLINE | ID: mdl-32935307

RESUMEN

The management of high-utilizing patients is an area of active research with broad implications for the healthcare system. There are significant operational challenges to designing primary care models for these medically complex, high-needs patients. Although it is crucial to provide a high degree of continuity of care for this population, managing a cohort of these patients can lead to provider over-work and attrition. This may be magnified by the lack of training dedicated to addressing the unique care needs of these patients. While academic medical centers would seem well suited to care for individuals with multimorbidity needing intensive and specialized treatment, primary care providers in this setting need additional support to be clinically available for patients while pursuing scholarship and teaching. Formally recognizing intensive outpatient care as a specialty within internal medicine would help overcome some of these challenges. This would require a committed effort to high-level systems changes including a new focus on graduate medical education, the creation of division-level infrastructure within academic departments of medicine, and realistic levels of financial support to make this a viable career path.


Asunto(s)
Médicos , Centros Médicos Académicos , Atención a la Salud , Humanos , Atención Primaria de Salud
20.
Psychother Psychosom ; 90(3): 178-190, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33524983

RESUMEN

In light of the current coronavirus disease 2019 (COVID-19) pandemic and potential future infectious disease outbreaks, a comprehensive understanding of the negative effects of epidemics and pandemics on healthcare workers' mental health could inform appropriate support interventions. Thus, we aimed to synthesize and quantify the psychological and psychosomatic symptoms among frontline medical staff. We searched four databases up to March 19, 2020 and additional literature, with daily search alerts set up until October 26, 2020. Studies reporting psychological and/or psychosomatic symptoms of healthcare workers caring for patients with severe acute respiratory syndrome, H1N1, Ebola, Middle East respiratory syndrome, or COVID-19 were eligible for inclusion. Two reviewers independently conducted the search, study selection, quality appraisal, data extraction, and synthesis and involved a third reviewer in case of disagreement. We used random effects modeling to estimate the overall prevalence rates of psychological/psychosomatic symptoms and the I2 statistic. We included 86 studies, reporting data from 75,991 participants. Frontline staff showed a wide range of symptoms, including concern about transmitting the virus to the family (60.39%, 95% CI 42.53-76.96), perceived stress (56.77%, 95% CI 34.21-77.95), concerns about own health (45.97%, 95% CI 31.08-61.23), sleeping difficulties (39.88%, 95% CI 27.70-52.72), burnout (31.81%, 95% CI 13.32-53.89), symptoms of depression (25.72%, 95% CI 18.34-33.86), symptoms of anxiety (25.36%, 95% CI 17.90-33.64), symptoms of posttraumatic stress disorder (24.51%, 95% CI 18.16-31.46), mental health issues (23.11%, 95% CI 15.98-31.10), and symptoms of somatization (14.68%, 95% CI 10.67-19.18). We found consistent evidence for the pervasive and profound impact of large-scale outbreaks on the mental health of frontline healthcare workers. As the CO-VID-19 crisis continues to unfold, guaranteeing easy access to support structures for the entire healthcare workforce is vitally important.


Asunto(s)
Epidemias , Personal de Salud/psicología , Salud Mental , Pandemias , Trastornos Psicofisiológicos/epidemiología , Estrés Psicológico/epidemiología , Ansiedad/epidemiología , COVID-19/psicología , Infecciones por Coronavirus/psicología , Estudios Transversales , Depresión/epidemiología , Fiebre Hemorrágica Ebola/psicología , Humanos , Subtipo H1N1 del Virus de la Influenza A , Gripe Humana/psicología , Estudios Longitudinales , SARS-CoV-2 , Síndrome Respiratorio Agudo Grave/psicología , Trastornos del Sueño-Vigilia/epidemiología , Trastornos por Estrés Postraumático/epidemiología
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