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1.
Evol Comput ; 30(4): 479-501, 2022 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-35289840

RESUMO

Evolution-in-Materio is a computational paradigm in which an algorithm reconfigures a material's properties to achieve a specific computational function. This article addresses the question of how successful and well performing Evolution-in-Materio processors can be designed through the selection of nanomaterials and an evolutionary algorithm for a target application. A physical model of a nanomaterial network is developed which allows for both randomness, and the possibility of Ohmic and non-Ohmic conduction, that are characteristic of such materials. These differing networks are then exploited by differential evolution, which optimises several configuration parameters (e.g., configuration voltages, weights, etc.), to solve different classification problems. We show that ideal nanomaterial choice depends upon problem complexity, with more complex problems being favoured by complex voltage dependence of conductivity and vice versa. Furthermore, we highlight how intrinsic nanomaterial electrical properties can be exploited by differing configuration parameters, clarifying the role and limitations of these techniques. These findings provide guidance for the rational design of nanomaterials and algorithms for future Evolution-in-Materio processors.


Assuntos
Algoritmos
2.
Psychosomatics ; 59(5): 415-440, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30197247

RESUMO

The psychosocial evaluation is well-recognized as an important component of the multifaceted assessment process to determine candidacy for heart transplantation, lung transplantation, and long-term mechanical circulatory support (MCS). However, there is no consensus-based set of recommendations for either the full range of psychosocial domains to be assessed during the evaluation, or the set of processes and procedures to be used to conduct the evaluation, report its findings, and monitor patients' receipt of and response to interventions for any problems identified. This document provides recommendations on both evaluation content and process. It represents a collaborative effort of the International Society for Heart and Lung Transplantation (ISHLT) and the Academy of Psychosomatic Medicine, American Society of Transplantation, International Consortium of Circulatory Assist Clinicians, and Society for Transplant Social Workers. The Nursing, Health Science and Allied Health Council of the ISHLT organized a Writing Committee composed of international experts representing the ISHLT and the collaborating societies. This Committee synthesized expert opinion and conducted a comprehensive literature review to support the psychosocial evaluation content and process recommendations that were developed. The recommendations are intended to dovetail with current ISHLT guidelines and consensus statements for the selection of candidates for cardiothoracic transplantation and MCS implantation. Moreover, the recommendations are designed to promote consistency across programs in the performance of the psychosocial evaluation by proposing a core set of content domains and processes that can be expanded as needed to meet programs' unique needs and goals.


Assuntos
Transplante de Coração/métodos , Coração Auxiliar , Transplante de Pulmão/métodos , Seleção de Pacientes , Adaptação Psicológica , Adulto , Comportamentos Relacionados com a Saúde , Conhecimentos, Atitudes e Prática em Saúde , Transplante de Coração/psicologia , Transplante de Coração/normas , Coração Auxiliar/psicologia , Humanos , Transplante de Pulmão/psicologia , Transplante de Pulmão/normas , Cooperação do Paciente/psicologia , Implantação de Prótese/métodos , Implantação de Prótese/psicologia , Implantação de Prótese/normas
3.
Prog Transplant ; 27(1): 90-97, 2017 03.
Artigo em Inglês | MEDLINE | ID: mdl-27888278

RESUMO

The goal of consistent, predictable, and improved outcomes has continued to elude the scientific community in the 30 years since lung transplantation became the procedure of choice for patients with terminal, nonmalignant lung disease. BACKGROUND: Although there is consensus regarding disease-specific indications for lung transplant, ambiguity remains regarding how patient-specific attributes should influence lung transplant candidacy. This study had 3 aims (1) to establish the missing domains of the interdisciplinary assessment of the lung transplant candidate, (2) to have these domains validated by an international panel of lung transplant experts, and (3) to recommend the next step for inclusion of these domains into the lung transplant candidate selection process. METHODS: Three levels of evidence were reviewed. A search for standards and guidelines, a comprehensive literature review, and a validation of domains by experts were conducted. RESULTS: Seven domains of patient attributes were identified as relevant to lung transplant patient selection: cognitive performance, frailty, psychological factors, self-efficacy, social support, quality of life, and sociodemographic factors. Within each domain, several elements were identified to be incorporated in the process of patient assessment. CONCLUSION: Assessment of the missing domains and elements should be incorporated into the interdisciplinary lung transplant evaluation process. Standardized recognition and reporting of the patient-specific attributes will inform the work of individual transplant programs and the international transplant community. Further study is needed to associate these patient attributes with transplant outcomes. Improved understanding is needed regarding how nurses assess lung transplant candidates and how they communicate their findings within interdisciplinary settings.


Assuntos
Transplante de Pulmão , Seleção de Pacientes , Humanos
4.
J Wound Ostomy Continence Nurs ; 42(6): 589-98, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26528871

RESUMO

PURPOSE: The purpose of this study was to measure the daily prevalence of adhesive product use and related skin injuries in adult patients in a non-intensive care unit setting. DESIGN: Prospective, descriptive study. SUBJECTS AND SETTING: The study sample consisted of patients cared for on 2 inpatient care units in a university-based acute care facility in the Midwestern United States. One was a 30-bed medical/surgical unit and the second was a 35-bed cardiac/telemetry unit. Their median age was 58 years; the average daily proportion of males and females was 56% and 42%, respectively. METHODS: Medical adhesive-related skin injury (MARSI) prevalence was calculated using 3 methods: (1) the proportion of subjects who had any MARSI injury (subject prevalence), (2) the prevalence of MARSI by injury type and severity (severity prevalence), and (3) the proportion of medical adhesive products that had any associated MARSI (product prevalence). RESULTS: The daily subject prevalence of any MARSI injury ranged from 3.4% to 25.0% with a mean and median of 13.0% and 12.7%, respectively. The severity prevalence of MARSI injury ranged from 8 to 149 per 1000 product-days with a mean and median of 63 and 56 MARSIs per 1000 product-days, respectively. The median (range) product prevalence among all adhesive products varied from a high of 70 injuries per 1000 product-days for surgical closure to a low of 0 injuries per 1000 product-days for peripheral intravenous line dressing. CONCLUSIONS: Medical adhesive-related skin injury is a prevalent event in the acute care setting. Preventing skin injury has the potential to reduce complications, increase patient satisfaction, and improve clinical outcomes.


Assuntos
Adesivos/efeitos adversos , Pele/lesões , Doença Aguda , Adolescente , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Estudos Prospectivos , Adulto Jovem
5.
Creat Nurs ; 21(2): 69-74, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26094368

RESUMO

Family caregivers contribute services valued at $450 billion to the U.S. economy annually. Although family members frequently lack training in the techniques of health care, providers routinely turn to them to provide care when a patient's condition no longer meets criteria for hospitalization. This article explores the concepts of caregiver empowerment and disempowerment, offers strategies for enhancing caregiver empowerment, and describes actions that may unintentionally disempower those same individuals. Case examples are used to draw attention to cues health care personnel may encounter that signal a need to look deeper into the caregiver's capacity to provide the needed care. Early identification of barriers to capacity will permit the health care team to bring resources to bear on the patient's situation to facilitate safe transitions of care.


Assuntos
Cuidadores/economia , Cuidadores/psicologia , Doença Crônica/enfermagem , Empatia , Família/psicologia , Serviços de Assistência Domiciliar/economia , Poder Psicológico , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Apoio Social , Inquéritos e Questionários , Estados Unidos , Adulto Jovem
6.
Phys Chem Chem Phys ; 16(3): 1174-81, 2014 Jan 21.
Artigo em Inglês | MEDLINE | ID: mdl-24292551

RESUMO

We present an experimental proof of concept of scanning thermal nanoprobes that utilize the extreme thermal conductance of carbon nanotubes (CNTs) to channel heat between the probe and the sample. The integration of CNTs into scanning thermal microscopy (SThM) overcomes the main drawbacks of standard SThM probes, where the low thermal conductance of the apex SThM probe is the main limiting factor. The integration of CNTs (CNT-SThM) extends SThM sensitivity to thermal transport measurement in higher thermal conductivity materials such as metals, semiconductors and ceramics, while also improving the spatial resolution. Investigation of thermal transport in ultra large scale integration (ULSI) interconnects, using the CNT-SThM probe, showed fine details of heat transport in ceramic layers, vital for mitigating electromigration in ULSI metallic current leads. For a few layer graphene, the heat transport sensitivity and spatial resolution of the CNT-SThM probe demonstrated significantly superior thermal resolution compared to that of standard SThM probes achieving 20-30 nm topography and ~30 nm thermal spatial resolution compared to 50-100 nm for standard SThM probes. The outstanding axial thermal conductivity, a high aspect ratio and robustness of CNTs can make CNT-SThM the perfect thermal probe for the measurement of nanoscale thermophysical properties and an excellent candidate for the next generation of thermal microscopes.

7.
Materials (Basel) ; 17(11)2024 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-38893937

RESUMO

In this study, the effect of atmospheric hydrogen plasma treatment on the in-plane conductivity of solution-processed zinc oxide (ZnO) in various environments is reported. The hydrogen-plasma-treated and untreated ZnO films exhibited ohmic behavior with room-temperature in-plane conductivity in a vacuum. When the untreated ZnO film was exposed to a dry oxygen environment, the conductivity rapidly decreased, and an oscillating current was observed. In certain cases, the thin film reversibly 'switched' between the high- and low-conductivity states. In contrast, the conductivity of the hydrogen-plasma-treated ZnO film remained nearly constant under different ambient conditions. We infer that hydrogen acts as a shallow donor, increasing the carrier concentration and generating oxygen vacancies by eliminating the surface contamination layer. Hence, atmospheric hydrogen plasma treatment could play a crucial role in stabilizing the conductivity of ZnO films.

8.
J Heart Lung Transplant ; 43(9): 1422-1433, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38762215

RESUMO

BACKGROUND: The quality-adjusted life year (QALY) measures disease burden and treatment, combining overall survival and health-related quality of life (HRQOL). We estimated QALYs in 3 groups of older patients (60-80 years) with heart failure (HF) who underwent heart transplantation (HT, with pre-transplant mechanical circulatory support [HT MCS] or HT without pre-transplant MCS [HT Non-MCS]) or long-term MCS (destination therapy). We also identified factors associated with gains in QALYs through 24 months follow-up. METHODS: Of 393 eligible patients enrolled (10/1/15-12/31/18) at 13 U.S. sites, 161 underwent HT (n = 68 HT MCS, n = 93 HT Non-MCS) and 144 underwent long-term MCS. Survival and HRQOL data were collected through 24 months. QALY health utilities were based on patient self-report of EQ-5D-3L dimensions. Mean-restricted QALYs were compared among groups using generalized linear models. RESULTS: For the entire cohort, mean age in years closest to surgery was 67 (standard deviation, SD: 4.7), 78% were male, and 83% were White. By 18 months post-surgery, sustained significant differences in adjusted average ± SD QALYs emerged across groups, with the HT Non-MCS group having the highest average QALYs (24-month window: HT Non-MCS = 22.58 ± 1.1, HT MCS = 19.53 ± 1.33, Long-term MCS = 19.49 ± 1.3, p = 0.003). At 24 months post-operatively, a lower gain in QALYs was associated with HT MCS, long-term MCS, a lower pre-operative LVEF, NYHA class III or IV before surgery, and an ischemic or other etiology of HF. CONCLUSIONS: Determination of QALYs may provide important information for policy makers and clinicians to consider regarding benefits of HT and long-term MCS as treatment options for older patients with HF.


Assuntos
Insuficiência Cardíaca , Transplante de Coração , Coração Auxiliar , Qualidade de Vida , Anos de Vida Ajustados por Qualidade de Vida , Humanos , Masculino , Feminino , Idoso , Insuficiência Cardíaca/cirurgia , Insuficiência Cardíaca/terapia , Pessoa de Meia-Idade , Idoso de 80 Anos ou mais , Fatores de Tempo , Seguimentos , Taxa de Sobrevida/tendências , Estados Unidos/epidemiologia , Fatores Etários
10.
Nano Lett ; 12(6): 2906-11, 2012 Jun 13.
Artigo em Inglês | MEDLINE | ID: mdl-22524441

RESUMO

We report direct imaging of nanoscale thermal transport in single and few-layer graphene with approximately 50 nm lateral resolution using high vacuum scanning thermal microscopy. We observed increased heat transport in suspended graphene where heat is conducted by ballistic phonons, compared to adjacent areas of supported graphene, and observed decreasing thermal conductance of supported graphene with increased layer number. Our nanothermal images suggest a mean-free-path of thermal phonons in supported graphene below 100 nm.


Assuntos
Grafite/química , Nanoestruturas/química , Nanoestruturas/ultraestrutura , Transferência de Energia , Temperatura Alta , Teste de Materiais , Tamanho da Partícula , Condutividade Térmica
11.
J Heart Lung Transplant ; 42(9): 1197-1204, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37088337

RESUMO

BACKGROUND: Caregiving for heart failure (HF) patients is burdensome. We examined differences in caregiver burden for 3 groups of older advanced HF patients: (1) supported with mechanical circulatory support (MCS) before heart transplantation (HT MCS), (2) awaiting transplant without MCS (HT non-MCS), and (3) prior to long-term MCS and factors associated with burden. METHOD: From October 1, 2015 to December 31, 2018, we enrolled 276 caregivers for HF patients from 13 U.S. sites: 85 HT MCS, 96 HT non-MCS, and 95 prior to long-term MCS. At enrollment, caregivers completed the Oberst Caregiving Burden Scale (15 items, 2 subscales: time (range = 1-5; higher score = more time spent on task) and difficulty (range = 1-5; higher score = higher difficulty of task) and other measures. Statistical analyses included descriptive statistics, ANOVA, chi-square tests, and linear regression. RESULT: Overall, caregivers were aged 60.8 ± 9.8 years and predominantly white, female, spouses, well educated, and reported ≥1 comorbidities. Caregivers overall reported a moderate amount of time spent on tasks and slight task difficulty. Caregivers for HT non-MCS candidates reported significantly less perceived time spent on tasks than caregivers for HT MCS candidates and caregivers for patients prior to long-term MCS (2.2 ± 0.74 vs 2.4 ± 0.74 vs 2.5 ± 0.71, respectively, p = 0.02) and less perceived difficulty of tasks (1.2 ± 0.33 vs 1.4 ± 0.53 vs 1.4 ± 0.54, respectively, p = 0.01). Caregiver and patient factors were associated with caregiver burden. CONCLUSIONS: Prior to HT and long-term MCS, caregiver burden was low to moderate. Caregiver factors were predominantly associated with caregiver burden. Understanding caregiver burden and factors affecting caregiver burden may enhance preoperative advanced therapies discussions and guide caregiver support.


Assuntos
Insuficiência Cardíaca , Transplante de Coração , Humanos , Feminino , Qualidade de Vida , Sobrecarga do Cuidador , Insuficiência Cardíaca/cirurgia , Insuficiência Cardíaca/complicações , Cuidadores
12.
Circ Heart Fail ; 16(8): e010038, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37345518

RESUMO

BACKGROUND: Information about health-related quality of life (HRQOL) among caregivers of older patients with heart failure who receive heart transplantation (HT) and mechanical circulatory support (MCS) is sparse. We describe differences and factors associated with change in HRQOL before and early post-surgery among caregivers of older heart failure patients who underwent 3 surgical therapies: HT with pretransplant MCS (HT MCS), HT without pretransplant MCS (HT non-MCS), and long-term MCS. METHODS: Caregivers of older patients (60-80 years) from 13 US sites completed the EQ-5D-3 L visual analog scale (0 [worst]-100 [best] imaginable health state) and dimensions before and 3 and 6 months post-surgery. Analyses included linear regression, t tests, and nonparametric tests. RESULTS: Among 227 caregivers (HT MCS=54, HT non-MCS=76, long-term MCS=97; median age 62.7 years, 30% male, 84% White, 83% spouse/partner), EQ-5D visual analog scale scores were high before (84.8±14.1) and at 3 (84.7±13.0) and 6 (83.9±14.7) months post-surgery, without significant differences among groups or changes over time. Patient pulmonary hypertension presurgery (ß=-13.72 [95% CI, -21.07 to -6.36]; P<0.001) and arrhythmia from 3 to 6 months post-operatively (ß=-14.22 [95% CI, -27.41 to -1.02]; P=0.035) were associated with the largest decrements in caregiver HRQOL; patient marital/partner status (ß=6.21 [95% CI, 1.34-11.08]; P=0.013) and presurgery coronary disease (ß=8.98 [95% CI, 4.07-13.89]; P<0.001) were associated with the largest improvements. CONCLUSIONS: Caregivers of older patients undergoing heart failure surgeries reported overall high HRQOL before and early post-surgery. Understanding factors associated with caregiver HRQOL may inform decision-making and support needs. REGISTRATION: URL: https://www. CLINICALTRIALS: gov; Unique identifier: NCT02568930.


Assuntos
Insuficiência Cardíaca , Transplante de Coração , Coração Auxiliar , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Cuidadores , Insuficiência Cardíaca/cirurgia , Qualidade de Vida , Idoso , Idoso de 80 Anos ou mais
13.
Langmuir ; 28(43): 15385-91, 2012 Oct 30.
Artigo em Inglês | MEDLINE | ID: mdl-23036116

RESUMO

Langmuir-Blodgett deposition has been used to form thin film networks of both metallic and semiconducting single-walled carbon nanotubes. These have been investigated to understand their physical, optical, and morphological properties. The electrical conductivities over the temperature range 80-350 K and across electrode gaps of 220 nm and 2 mm have been explored. In the case of semiconducting tubes, the results suggest that Poole-Frenkel conduction is the dominant electrical process at temperatures below 150 K and electric fields of greater than 1 MV m(-1). Metallic nanotube networks exhibit a decrease in resistance with a reduction in temperature. This can be approximated by a linear relationship, giving a temperature coefficient of resistance of 10(-3) K(-1).

14.
Vet Sci ; 9(6)2022 May 26.
Artigo em Inglês | MEDLINE | ID: mdl-35737304

RESUMO

The use of veterinary acupuncture for pain relief is expanding among small animal practitioners. Although acupuncture was developed as part of the medical system in Ancient China, research into the scientific basis of its effects is expanding rapidly. Acupuncture is very effective for analgesia on a local, segmental, and suprasegmental level. Many forms of acupuncture can be used independently or as part of a balanced multi-modal approach for the control of acute and chronic pain. In the hands of a skilled practitioner, acupuncture can be a safe and effective modality for treating pain in companion animals. This article outlines the mechanisms of action of acupuncture, its related neurophysiology and provides examples from the literature demonstrating its effectiveness.

15.
Circ Heart Fail ; 15(10): e009579, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-36214123

RESUMO

BACKGROUND: Restoring health-related quality of life (HRQOL) is a therapeutic goal for older patients with advanced heart failure. We aimed to describe change in HRQOL in older patients (60-80 years) awaiting heart transplantation (HT) with or without pretransplant mechanical circulatory support (MCS) or scheduled for long-term MCS, if ineligible for HT, from before to 6 months after these surgeries and identify factors associated with change. METHODS: Patients from 13 US sites completed the EuroQol 5-dimension 3L questionnaire and Kansas City Cardiomyopathy Questionnaire-12 at baseline and 3 and 6 months after HT or long-term MCS. Analyses included univariate comparisons and multivariable linear regression. RESULTS: Among 305 participants (cohort mean age=66.2±4.7 years, 78% male, 84% White, 55% New York Heart Association class IV), 161 underwent HT (n=68 with and n=93 without pretransplant MCS), and 144 received long-term MCS. From baseline to 3 months, EuroQol 5-dimension visual analog scale scores improved in HT patients without pretransplant MCS (54.5±24.3 versus 75.9±16.0, P<0.001) and long-term MCS patients (45.7±22.9 versus 66.2± 20.9, P <0.001); while Kansas City Cardiomyopathy Questionnaire-12 overall summary scores improved in all 3 groups (HT without pretransplant MCS: 47.2±20.9 versus 77.4±20.1, P <0.001; long-term MCS: 35.3±20.2 versus 58.6±22.0, P <0.001; and HT with pretransplant MCS: 58.3±23.6 versus 72.1±23.5, P=0.002). No further HRQOL improvement was found from 3 to 6 months. Factors most significantly associated with change in HRQOL, baseline 3 months, were right heart failure and 3-month New York Heart Association class, and 3 to 6 months, were 6-month New York Heart Association class and major bleeding. CONCLUSIONS: In older heart failure patients, HRQOL improved from before to early after HT and long-term MCS. At 6 postoperative months, HRQOL of long-term MCS patients was lower than one or both HT groups. Understanding change in HRQOL from before to early after these surgeries may enhance decision-making and guide patient care. REGISTRATION: URL: https://www. CLINICALTRIALS: gov; Unique identifier: NCT02568930.


Assuntos
Insuficiência Cardíaca , Transplante de Coração , Coração Auxiliar , Qualidade de Vida , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Insuficiência Cardíaca/cirurgia , Inquéritos e Questionários , Idoso de 80 Anos ou mais , Resultado do Tratamento
16.
J Am Heart Assoc ; 11(4): e024385, 2022 02 15.
Artigo em Inglês | MEDLINE | ID: mdl-35156421

RESUMO

Background There is a paucity of research describing health-related quality of life (HRQOL) in older adults considered for advanced heart failure surgical therapies. Using data from our SUSTAIN-IT (Sustaining Quality of Life of the Aged: Heart Transplant or Mechanical Support) study, we aimed to compare HRQOL among 3 groups of older (60-80 years) patients with heart failure before heart transplantation (HT) or long-term mechanical circulatory support (MCS) and identify factors associated with HRQOL: (1) HT candidates with MCS, (2) HT candidates without MCS, or (3) candidates ineligible for HT and scheduled for long-term MCS. Methods and Results Patients from 13 US sites completed assessments, including self-reported measures of HRQOL (EuroQol-5 Dimension Questionnaire, Kansas City Cardiomyopathy Questionnaire-12), depressive symptoms (Personal Health Questionnaire-8), anxiety (State-Trait Anxiety Inventory-state form), cognitive status (Montreal Cognitive Assessment), and performance-based measures (6-minute walk test and 5-m gait speed). Analyses included ANOVA, χ2 tests, Fisher's exact tests, and linear regression. The sample included 393 patients; the majority of patients were White men and married. Long-term MCS candidates (n=154) were significantly older and had more comorbidities and a higher New York Heart Association class than HT candidates with MCS (n=118) and HT candidates without MCS (n=121). Long-term MCS candidates had worse HRQOL than HT candidates with and without MCS (EQ-5D visual analog scale scores, 46±23 versus 68±18 versus 54±23 [P<0.001] and Kansas City Cardiomyopathy Questionnaire-12 overall summary scores, 35±21 versus 60±21 versus 49±22 [P<0.001], respectively). In multivariable analyses, lower 6-minute walk distance, higher New York Heart Association class, depressive symptoms, and not being an HT candidate with MCS were significantly associated with worse overall HRQOL. Conclusions Our findings demonstrate important differences in overall and domain-specific HRQOL of older patients with heart failure before HT or long-term MCS. Understanding HRQOL differences may guide decisions toward more appropriate and personalized advanced heart failure therapies.


Assuntos
Cardiomiopatias , Insuficiência Cardíaca , Coração Auxiliar , Idoso , Idoso de 80 Anos ou mais , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/psicologia , Insuficiência Cardíaca/terapia , Coração Auxiliar/psicologia , Humanos , Masculino , Pessoa de Meia-Idade , Qualidade de Vida/psicologia , Inquéritos e Questionários
17.
Am J Ther ; 18(1): 81-90, 2011 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-20634684

RESUMO

This brief review examines certain strategies for increasing community awareness and recognition of the warning signs and symptoms of stroke. Attention should be given to the intended audience, especially at-risk groups. To enhance stroke literacy, a complete message should include the following 4 aspects: (1) a stroke is a serious medical problem that involves the blood supply to the brain, (2) all 5 approved warning signs and symptoms, (3) the many risk factors involved in stroke, and (4) the need to promptly call 911 for emergency services and treatment. Such knowledge could lead to improvement in the rapid arrival to an emergency room and promote optimal and timely medical treatment. With several educational paradigms and strategies in existence, we propose that more rigorous study of their comparative performance and utility is needed. In a preliminary survey, our own program, called "KNOW FIVE - STAY ALIVE," provided greater posttest knowledge compared with the "FAST" program and a National Institutes of Health brochure called "Know Stroke. Know the signs, Act in time."


Assuntos
Educação em Saúde , Saúde Pública , Acidente Vascular Cerebral/diagnóstico , Adulto , Fatores Etários , Idoso , Recursos Audiovisuais , Serviços Médicos de Emergência , Feminino , Transtornos Neurológicos da Marcha/etiologia , Cefaleia/etiologia , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Hipertensão/complicações , Hipestesia/etiologia , Estilo de Vida , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Fatores Sexuais , Distúrbios da Fala/etiologia , Acidente Vascular Cerebral/genética , Acidente Vascular Cerebral/terapia , Estudantes de Medicina , Estados Unidos , Transtornos da Visão/etiologia
18.
Teach Learn Med ; 23(1): 46-52, 2011 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-21240783

RESUMO

BACKGROUND: Reduction in contact hours has led to the use of more efficient teaching approaches in medical education, yet the efficacy of such approaches is often not fully investigated. PURPOSE: This work provides a detailed analysis of alternating group dissections with peer-teaching in Medical Anatomy (MA). METHODS: MA I and II percentages of the alternating (ALT) and nonalternating (NALT) groups were compared, scores of ALT subgroups (A and B) were compared, and subgroup performance on practical exam questions was compared. RESULTS: MA I and MA II percentages indicated no significant difference in median scores (pMAI=0.581, pMAII=0.223) between ALT and NALT. Subgroup analysis and assessment of question types showed that student performance and ability to identify a structure were not dependent on dissection group assignment. CONCLUSION: Alternating dissections offered students more unscheduled time for independent learning activities, such as studying or shadowing preceptors, and reduced student-to-cadaver and student-to-faculty ratios by 50%. Alternating dissections with peer teaching were not detrimental to student performance.


Assuntos
Anatomia/educação , Dissecação/educação , Aprendizagem , Grupo Associado , Ensino , Cadáver , Currículo , Educação de Graduação em Medicina/métodos , Processos Grupais , Humanos , Estudos Retrospectivos , Estatísticas não Paramétricas , Estados Unidos
19.
Transplant Direct ; 7(12): e796, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34841048

RESUMO

BACKGROUND: We sought to compare change over time (baseline to 2 y) in health-related quality of life (HRQOL) between older (60-80 y) patients awaiting heart transplantation (HT) with mechanical circulatory support (MCS) versus without MCS and their caregivers and caregiver burden. METHODS: This study was conducted at 13 United States sites. Patient HRQOL was examined using the EuroQol 5-dimensional questionnaire (EQ-5D-3L) and Kansas City Cardiomyopathy Questionnaire-12 (KCCQ-12). Caregiver measures included the EQ-5D-3L and Oberst Caregiving Burden Scale, measuring time on task and difficulty. Analyses included analysis of variance, χ2, and linear regression. RESULTS: We enrolled 239 HT candidates (n = 118 with MCS and n = 121 without MCS) and 193 caregivers (n = 92 for candidates with MCS and n = 101 for candidates without MCS). Baseline differences in HRQOL were observed between HT candidates with and without MCS: EQ-5D-3L visual analog scale (VAS) score (67.7 ± 17.6 versus 54.1 ± 23.3, P < 0.001) and KCCQ-12 overall summary score (59.9 ± 21.0 versus 48.9 ± 21.6, P < 0.001), respectively. HT candidates with MCS had significantly higher EQ-5D-3L VAS scores and KCCQ-12 overall summary score across time versus without MCS. Baseline EQ-5D-3L VAS scores did not differ significantly between caregivers of HT candidates with and without MCS (84.6 ± 12.9 versus 84.3 ± 14.4, P = 0.9), respectively, nor were there significant between-group differences over time. Caregivers for HT candidates with MCS reported more task difficulty (range: 1 = not difficult to 5 = extremely difficult) versus caregivers for those without MCS at baseline (1.4 ± 0.5 versus 1.2 ± 0.3, P = 0.004) and over time. CONCLUSIONS: Understanding differences in HRQOL and caregiver burden among older HT candidates with and without MCS and their caregivers may inform strategies to enhance HRQOL and reduce burden.

20.
Intensive Crit Care Nurs ; 63: 102974, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33262010

RESUMO

BACKGROUND: Improving care of critically ill patients requires using an interprofessional care model and care standardisation. OBJECTIVES: Determine whether collaborative patient care rounds in the intensive care unit increases practice consistency with respect to common considerations such as delirium prevention, device use, and indicated prophylaxis, among others. Secondary objective to assess whether collaborative interprofessional format improved nursing perceptions of collaboration. METHODS: Single centre, pre- and post- intervention design. collaborative patient care rounding format implemented in three intensive care units in an academic tertiary care centre. format consisted of scripted nursing presentation, provider checklist of additional practice considerations, and daily priority goals documentation. measurements included nursing participation, consideration of selected practice items, daily goal verbalisation, and nursing perception of collaboration. RESULTS: Pre- and post-intervention measurements indicate gains in consideration of eight of thirteen bundle items (p < 0.05), with the greatest gains seen in nurse-presented items. Increases were observed in verbalisation of daily goals (59.8% versus 89.1%, p < 0.0001), nurse participation (83.9% versus 91.8%, p = 0.056), and nurse collaboration ratings (p < 0.0001). CONCLUSION: This study describes implementation of collaborative patient care rounds with corresponding increases in consideration of selected practice items, verbalisation of daily goals, and perceptions of collaboration.


Assuntos
Visitas de Preceptoria , Cuidados Críticos , Humanos , Unidades de Terapia Intensiva , Assistência ao Paciente , Equipe de Assistência ao Paciente
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