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1.
JMIR Res Protoc ; 11(9): e41451, 2022 Sep 02.
Artigo em Inglês | MEDLINE | ID: mdl-36053558

RESUMO

BACKGROUND: Surgery is the most common treatment for localized small kidney masses (SKMs) up to 4 cm, despite a lack of evidence for improved overall survival. Nonsurgical management options are gaining recognition, as evidence supports the indolence of most SKMs. Decision aids (DAs) have been shown to improve patient comprehension of the trade-offs of treatment options and overall decision quality, and may improve consideration of all major options according to individual health priorities and preferences. OBJECTIVE: This pilot randomized controlled trial (RCT) primarily aims to evaluate the impact of a new web-based DA on treatment decisions for patients with SKM; that is, selection of surgical versus nonsurgical treatment options. Secondary objectives include an assessment of decision-making outcomes: decisional conflict, decision satisfaction, and an understanding of individual preferences for treatment that incorporate the trade-offs associated with surgical versus nonsurgical interventions. METHODS: Three phases comprise the construction and evaluation of a new web-based DA on SKM treatment. In phase 1, this DA was developed in print format through a multidisciplinary design committee incorporating patient focus groups. Phase 2 was an observational study on patient knowledge and decision-making measures after randomization to receive the printed DA or institutional educational materials, which identified further educational needs applied to a web-based DA. Phase 3 will preliminarily evaluate the web-based DA: in a pilot RCT, 50 adults diagnosed with SKMs will receive the web-based DA or an existing web-based institutional website at urology clinics at a large academic medical center. The web-based DA applies risk communication and information about diagnosis and treatment options, elicits preferences regarding treatment options, and provides a set of options to consider with their doctor based on a decision-analytic model of benefits/harm analysis that accounts for comorbidity, age group, and tumor features. Questionnaires and treatment decision data will be gathered before and after viewing the educational material. RESULTS: This phase will consist of a pilot RCT from August 2022 to January 2023 to establish feasibility and preliminarily evaluate decision outcomes. Previous study phases from 2018 to 2020 supported the feasibility of providing the printed DA in urology clinics before clinical consultation and demonstrated increased patient knowledge about the diagnosis and treatment options and greater likelihood of favoring nonsurgical treatment just before consultation. This study was funded by the National Cancer Institute. Recruitment will begin in August 2022. CONCLUSIONS: A web-based DA has been designed to address educational needs for patients making treatment decisions for SKM, accounting for comorbidities and treatment-related benefits and risks. Outcomes from the pilot trial will evaluate the potential of a web-based DA in personalizing treatment decisions and in helping patients weigh attributes of surgical versus nonsurgical treatment options for their SKMs. TRIAL REGISTRATION: ClinicalTrials.gov NCT05387863; https://clinicaltrials.gov/ct2/show/NCT05387863. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): PRR1-10.2196/41451.

2.
Sci Rep ; 11(1): 5156, 2021 03 04.
Artigo em Inglês | MEDLINE | ID: mdl-33664340

RESUMO

The purpose of this work was to develop a novel method to disentangle the intra- and extracellular components of the total sodium concentration (TSC) in breast cancer from a combination of proton ([Formula: see text]H) and sodium ([Formula: see text]) magnetic resonance imaging (MRI) measurements. To do so, TSC is expressed as function of the intracellular sodium concentration ([Formula: see text]), extracellular volume fraction (ECV) and the water fraction (WF) based on a three-compartment model of the tissue. TSC is measured from [Formula: see text] MRI, ECV is calculated from baseline and post-contrast [Formula: see text]H [Formula: see text] maps, while WF is measured with a [Formula: see text]H chemical shift technique. [Formula: see text] is then extrapolated from the model. Proof-of-concept was demonstrated in three healthy subjects and two patients with triple negative breast cancer. In both patients, TSC was two to threefold higher in the tumor than in normal tissue. This alteration mainly resulted from increased [Formula: see text] ([Formula: see text] 30 mM), which was [Formula: see text] 130% greater than in healthy conditions (10-15 mM) while the ECV was within the expected range of physiological values (0.2-0.25). Multinuclear MRI shows promise for disentangling [Formula: see text] and ECV by taking advantage of complementary [Formula: see text]H and [Formula: see text] measurements.


Assuntos
Neoplasias da Mama/diagnóstico por imagem , Imageamento Tridimensional , Imageamento por Ressonância Magnética , Sódio/química , Adulto , Algoritmos , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/patologia , Feminino , Humanos , Processamento de Imagem Assistida por Computador , Pessoa de Meia-Idade , Prótons
3.
Magn Reson Med ; 86(1): 33-45, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-33533056

RESUMO

PURPOSE: To develop a simultaneous dual-slab three-dimensional gradient-echo spectroscopic imaging (GSI) technique with frequency drift compensation for rapid (<6 min) bilateral measurement of fatty acid composition (FAC) in mammary adipose tissue. METHODS: A bilateral GSI sequence was developed using a simultaneous dual-slab excitation followed by 128 monopolar echoes. A short train of navigator echoes without phase or partition encoding was included at the beginning of each pulse repetition time period to correct for frequency variation caused by respiration and heating of the cryostat. Voxel-wise spectral fitting was applied to measure the areas of the lipid spectral peaks to estimate the number of double-bond (ndb), number of methylene-interrupted double-bond (nmidb), and chain length (cl). The proposed method was tested in an oil phantom and 10 postmenopausal women to assess the influence of the frequency variation on FAC estimation. RESULTS: The frequency drift observed over 5:27 min during the phantom scan was about 10 Hz. Phase correction based on the navigator reduced the median error of ndb, nmidb, and cl from 9.7%, 17.6%, and 3.2% to 2.1%, 9.5%, and 2.8%, respectively. The in vivo data showed a mean ± standard deviation frequency drift of 17.4 ± 2.5 Hz, with ripples at 0.3 ± 0.1 Hz. Our reconstruction algorithm successfully separated signals from the left and right breasts with negligible residual aliasing. Phase correction reduced the interquartile range within each subject's adipose tissue of ndb, nmidb, and cl by 18.4 ± 10.6%, 18.5 ± 13.9%, and 18.4 ± 10.6%, respectively. CONCLUSION: This study shows the feasibility of obtaining bilateral spectroscopic imaging data in the breast and that incorporation of a frequency navigator improves the estimation of FAC.


Assuntos
Ácidos Graxos , Imageamento por Ressonância Magnética , Tecido Adiposo/diagnóstico por imagem , Mama/diagnóstico por imagem , Feminino , Humanos , Imagens de Fantasmas
4.
Palliat Med ; 34(3): 367-377, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-32020837

RESUMO

BACKGROUND: Prior research has demonstrated that the presence of regret and unfinished business is associated with poorer adjustment in bereavement. Though there is a growing literature on these constructs among caregivers of adult patients, the literature on regret and unfinished business in bereaved parents has been limited. AIM: The aim of this study was to examine regret and unfinished business in parents bereaved by cancer, as well as their associations with caregiving experiences and prolonged grief. DESIGN: This was a cross-sectional mixed methods study that utilized self-report questionnaires with open-ended items. SETTING/PARTICIPANTS: The multisite study took place at a tertiary cancer hospital and pediatric cancer clinical research institution. Participants were 118 parents (mothers = 82, fathers = 36) who lost a child aged 6 months to 25 years to cancer between 6 months and 6 years prior. RESULTS: Results showed that 73% of the parents endorsed regret and 33% endorsed unfinished business, both of which were more common among mothers than fathers (p ⩽ 0.05). Parents were on average moderately distressed by their regrets and unfinished business, and both regret-related and unfinished business-related distress were associated with distress while caregiving and prolonged grief symptoms. CONCLUSION: Findings have implications for how providers work with families, including increasing treatment decision-making support, supporting parents in speaking to their child about illness, and, in bereavement, validating choices made. Grief interventions that use cognitive-behavioral and meaning-centered approaches may be particularly beneficial.


Assuntos
Luto , Neoplasias/enfermagem , Neoplasias/psicologia , Pais/psicologia , Adulto , Criança , Feminino , Humanos , Masculino , Fatores de Tempo
5.
Curr Treat Options Psychiatry ; 6(4): 422-449, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32754423

RESUMO

PURPOSE OF REVIEW: a)The purpose of this systematic review was to characterize the studies published on grief interventions for bereaved older adults in the last 5 years. Grief intervention studies were included that exclusively focused on older adults as well as those that included older adults in their samples, in order to summarize the most up-to-date treatment options available for bereaved older adults. RECENT FINDINGS: b)Twenty-four articles that investigated grief interventions in older adults were identified. Generally, findings suggest viable treatment approaches for bereaved older adults are those incorporating behavioral activation and guidance on restoration-oriented coping. However, similar to studies of broader adult populations, grief interventions had small effects on grief-related symptoms in older adults. Few studies examined age as a moderator of treatment effects. Studies varied greatly by study design, sample size, and outcomes measured, which all likely impacted the efficacy of results. SUMMARY: c)This review suggests that, while there has been a growing focus on older adults, who have unique vulnerabilities in bereavement, the evidence-base of efficacious interventions for this population is limited. Given the need for specialized bereavement support for older adults will increase in the coming years, future research should prioritize rigorous investigations of grief treatment options leveraging technology to increase access and incorporate techniques that enhance engagement in life and connectedness for this vulnerable population.

6.
Behav Res Ther ; 115: 90-102, 2019 04.
Artigo em Inglês | MEDLINE | ID: mdl-30466714

RESUMO

Low resting heart rate variability (HRV) has been associated with poor sexual arousal function in women. In a recent study, a single session of autogenic training increased HRV and facilitated improvements in both sexual arousal and perceived genital sensations among women experiencing decreased arousal. The current study expands upon these findings by examining the efficacy of HRV biofeedback, with and without autogenic training, as a treatment for sexual arousal dysfunction in an at-home setting. Participants (N = 78) were randomized into one of three conditions: HRV biofeedback, HRV biofeedback + autogenic training, or waitlist control. Each condition included three laboratory sessions; participants in the two active conditions completed 4-6 biofeedback sessions at home, and participants in the HRVB + A condition listened to a 14-min autogenic training recording before completing the biofeedback. Across the three laboratory visits, participants in the three conditions singficnatly differed in their genital arousal, subjective sexual arousal, and their perceived genital sensations. Compared to women in the control group, women who engaged in HRV biofeedback at home, with and without additional autogenic training, experienced increases in genital arousal, subjective sexual arousal, and perceived genital sensations. These results provide preliminary support for the contribution of heart rate variability level to female sexual arousal function and for the use of either of these interventions in the treatment of sexual arousal concerns.


Assuntos
Biorretroalimentação Psicológica/métodos , Frequência Cardíaca/fisiologia , Libido/fisiologia , Disfunções Sexuais Psicogênicas/terapia , Adolescente , Adulto , Feminino , Humanos , Disfunções Sexuais Psicogênicas/fisiopatologia , Resultado do Tratamento , Adulto Jovem
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