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1.
Matern Child Health J ; 28(5): 820-827, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-37906401

RESUMEN

OBJECTIVES: Studies suggests that pregnancy can alter the maternal neurological function of the brain (i.e., result in cognitive decline) in a way that remains prevalent well into middle and older adulthood. However, little research has explored these changes and how they might affect behavioral health outcomes, such as substance use and depression. METHODS: We merged data from the 2016, 2017, and 2018 Behavioral Risk Factor Surveillance System (BRFSS) surveys, with a final analytic sample of 1330 female participants (649 participants were mothers). Chi-square tests or t-tests were used to examine differences in demographic and health characteristics of the sample by subjective cognitive decline (SCD) status. To test the study hypotheses, three generalized linear mixed models were estimated with a logit link. RESULTS: SCD was not associated with alcohol misuse among mothers (aOR = 0.27, p = 0.23). Mothers with SCD were more likely to smoke (aOR = 3.33, p = 0.01) and experience mental distress (aOR = 6.59, p < 0.001) than those without SCD. CONCLUSION: Interventions aimed at supporting mothers should consider how existing mental health and tobacco cessation programs can be adapted to better serve this population and should aim to identify those that may have early signs of early signs of neurodegenerative conditions.


Asunto(s)
Disfunción Cognitiva , Embarazo , Humanos , Femenino , Anciano , Disfunción Cognitiva/epidemiología , Disfunción Cognitiva/psicología , Madres , Sistema de Vigilancia de Factor de Riesgo Conductual , Encuestas y Cuestionarios , Evaluación de Resultado en la Atención de Salud
2.
Int J Spine Surg ; 18(1): 9-23, 2024 Mar 04.
Artículo en Inglés | MEDLINE | ID: mdl-38050030

RESUMEN

BACKGROUND: Accurate identification of pain generators in the context of low back and spine-related pain is crucial for effective treatment. This review aims to evaluate the potential usefulness of single photon emission computed tomography with computed tomography (SPECT/CT) as an imaging modality in guiding clinical decision-making. METHODS: A broad scoping literature review was conducted to identify relevant studies evaluating the use of SPECT/CT in patients with spine-related pain. Studies were reviewed for their methodology and results. RESULTS: SPECT/CT appears to have advantages over traditional modalities, such as magnetic resonance imaging and CT, in certain clinical scenarios. It may offer additional information to clinicians and improve the specificity of diagnosis. However, further studies are needed to fully assess its diagnostic accuracy and clinical utility. CONCLUSIONS: SPECT/CT is a promising imaging modality in the evaluation of low back pain, particularly in cases where magnetic resonance imaging and CT are inconclusive or equivocal. However, the current level of evidence is limited, and additional research is needed to determine its overall clinical relevance. CLINICAL RELEVANCE: SPECT/CT may have a significant impact on clinical decision-making, particularly in cases in which traditional imaging modalities fail to provide a clear diagnosis. Its ability to improve specificity could lead to more targeted and effective treatment for patients with spinal pathology.

3.
Artículo en Inglés | MEDLINE | ID: mdl-37569024

RESUMEN

To effectively treat patients and minimize viral exposure, oncology nurses and radiology departments during COVID-19 had to re-examine the ability to offer palliative radiation treatments to people with metastatic bone cancer. Decreasing potential exposure to the virus resulted in extra measures to keep patients and personnel safe. Limiting radiotherapy treatments, social distancing, and limiting caregivers were a few of the ways that oncology patients were impacted by the pandemic. Hypofractionated radiation therapy (HFRT), or the delivery of fewer higher-dose treatments, was a method of providing care but also limiting exposure to infection for immunocompromised patients as well as healthcare staff. As oncology radiation centers measure the impact of patient care during the pandemic, a trend toward HFRT may occur in treating the painful symptoms of bone cancer. In anticipation that HFRT may be increasingly used in patient treatment plans, oncology nurses should consider patient perspectives and outcomes from the pandemic to further determine how to manage future trends in giving personalized care, and supportive care.


Asunto(s)
Neoplasias Óseas , COVID-19 , Atención de Enfermería , Oncología por Radiación , Humanos , Oncología por Radiación/métodos , Oncología Médica
4.
Clin Case Rep ; 10(12): e6712, 2022 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-36514464

RESUMEN

In this report, we present a rare case of a 17-year-old male patient with metastatic mesenchymal chondrosarcoma (MCS) managed with nonsurgical treatment who subsequently demonstrated a favorable response to concurrent chemotherapy and radiation therapy, followed with pazopanib target therapy. Further study regarding nonoperative care for metastatic MCS of spine is warranted.

6.
Radiol Technol ; 93(3): 303CT-321CT, 2022 01.
Artículo en Inglés | MEDLINE | ID: mdl-35017276

RESUMEN

Lung and bronchus cancers account for almost 13% of new cancer cases and are responsible for approximately 23% of cancer deaths in the United States. Lung cancer has a poor prognosis, primarily because of advanced disease stage at initial diagnosis. An estimated 80% to 90% of lung cancer deaths are caused by smoking tobacco, and although smoking rates have decreased in recent decades, millions of people are eligible for lung cancer screening each year because they smoke. Screening high-risk populations for lung cancer using low-dose computed tomography has resulted in increased lung cancer survival rates because diagnosis is possible at an earlier disease stage.


Asunto(s)
Detección Precoz del Cáncer , Neoplasias Pulmonares , Detección Precoz del Cáncer/métodos , Humanos , Neoplasias Pulmonares/diagnóstico por imagen , Neoplasias Pulmonares/etiología , Tamizaje Masivo , Fumar/efectos adversos , Tomografía Computarizada por Rayos X/métodos , Estados Unidos/epidemiología
7.
J Am Acad Orthop Surg ; 30(3): e348-e360, 2022 Feb 01.
Artículo en Inglés | MEDLINE | ID: mdl-34889310

RESUMEN

INTRODUCTION: The role of weight-bearing full-length standing radiographs (FLSRs) of the spine in the preoperative workup of adult degenerative disease of the lumbar spine is a subject of increasing research. This investigation aims to determine whether FLSR influences preoperative planning decisions. METHODS: In this prospective study, eight spine surgeons reviewed two 30-patient case series. The first set (set A) contained a patient history, physical examination data, and preoperative images. The second set (set B) contained all information in set A in addition to preoperative FLSR AP and lateral radiographs. Within 2 weeks of evaluating set A, reviewers assessed set B. Case sets were randomized. After reviewing each set, reviewers gave surgical plans and whether they believed an FLSR was important in planning. Decisions were evaluated by subspecialty, years of practice, and postfellowship years. A McNemar test assessed differences between set viewings. A chi-square test assessed differences of preoperative decision changes between different specialties and levels of experience. A Poisson regression assessed characteristics associated with changing preoperative plans. We analyzed patients by the number of unique reviewer procedures, surgical levels, and associated pathology. RESULTS: After viewing an FLSR, 44.7% of reviewers changed procedure. Reviewer opinion of FLSR importance differed between sets (27.1% versus 35.7%, P = 0.047). Among all reviewers, FLSR presentation was associated with aligning the number of proposed procedures in 15 patients. Scoliosis and sacral dysplasia were associated with negative deltas. FLSR viewing reduced the span of operational levels considered. Along the most divided patients, those with a high magnitude (≥6 choices) of initial procedures had more negative deltas than did those with a high number (≥5 choices) of surgical level choices. CONCLUSION: FLSR remains a critical aspect of presurgical planning. Even when reviewers initially believed patients would not benefit from FLSR, we observed changes in preoperative planning after FLSR viewing.


Asunto(s)
Vértebras Lumbares , Escoliosis , Adulto , Humanos , Vértebras Lumbares/diagnóstico por imagen , Vértebras Lumbares/cirugía , Región Lumbosacra , Estudios Prospectivos , Radiografía
8.
Radiol Technol ; 92(6): 577-592, 2021 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-34193576

RESUMEN

Artificial intelligence (AI) is a rapidly growing profession that shows continued promise for diagnostic imaging in various disciplines, including dermatology and pathology. The benefits of AI, however, extend beyond the imaging department as radiation oncology departments begin to automate labor-intensive treatment planning processes. Given the increase in interest and research concerning AI, radiologic technologists must become familiar with AI terminology, current and potential applications, challenges, and patient perspectives.


Asunto(s)
Inteligencia Artificial , Diagnóstico por Imagen , Humanos
9.
Nanoscale ; 13(28): 12327-12341, 2021 Jul 28.
Artículo en Inglés | MEDLINE | ID: mdl-34254598

RESUMEN

The integration of graphene, and more broadly two-dimensional materials, into devices and hybrid materials often requires the deposition of thin films on their usually inert surface. As a result, strategies for the introduction of surface reactive sites have been developed but currently pose a dilemma between robustness and preservation of the graphene properties. A method is reported here for covalently modifying graphitic surfaces, introducing functional groups that act as reactive sites for the growth of high quality dielectric layers. Aryl diazonium species containing tri-methoxy groups are covalently bonded (grafted) to highly oriented pyrolytic graphite (HOPG) and graphene, acting as seeding species for atomic layer deposition (ALD) of Al2O3, a high-κ dielectric material. A smooth and uniform dielectric film growth is confirmed by scanning electron microscopy (SEM), atomic force microscopy (AFM) and electrical measurements. Raman spectroscopy showed that the aryl groups gradually detach from the graphitic surface during the Al2O3 ALD process at 150 °C, with the surface reverting back to the original sp2-hybridized state and without damaging the dielectric layer. Thus, the grafted aryl groups can act as a sacrificial seeding layer after healing the defects of the graphitic surface with annealing treatment.

10.
J Am Chem Soc ; 143(29): 11080-11087, 2021 07 28.
Artículo en Inglés | MEDLINE | ID: mdl-34283574

RESUMEN

We report on the detection and stabilization of a previously unknown two-dimensional (2D) pseudopolymorph of an alkoxy isophthalic acid using lateral nanoconfinement. The self-assembled molecular networks formed by the isophthalic acid derivative were studied at the interface between covalently modified graphite and an organic solvent. When self-assembled on graphite with moderate surface coverage of covalently bound aryl groups, a previously unknown metastable pseudopolymorph was detected. This pseudopolymorph, which was presumably "trapped" in between the surface bound aryl groups, underwent a time-dependent phase transition to the stable polymorph typically observed on pristine graphite. The stabilization of the pseudopolymorph was then achieved by using an alternative nanoconfinement strategy, where the domains of the pseudopolymorph could be formed and stabilized by restricting the self-assembly in nanometer-sized shallow compartments produced by STM-based nanolithography carried out on a graphite surface with a high density of covalently bound aryl groups. These experimental results are supported by molecular mechanics and molecular dynamics simulations, which not only provide important insight into the relative stabilities of the different structures, but also shed light onto the mechanism of the formation and stabilization of the pseudopolymorph under nanoscopic lateral confinement.


Asunto(s)
Grafito/química , Nanoestructuras/química , Ácidos Ftálicos/análisis , Simulación de Dinámica Molecular , Estructura Molecular
11.
Global Spine J ; 11(6): 925-930, 2021 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-32677525

RESUMEN

STUDY DESIGN: Single-center retrospective review. OBJECTIVES: The cervicothoracic junction (CTJ) is typically difficult to visualize using traditional radiographs. Whole-body stereoradiography (EOS) allows for imaging of the entire axial skeleton in a weightbearing position without parallax error and with lower radiation doses. In this study we sought to compare the visibility of the vertebra of the CTJ on lateral EOS images to that of conventional cervical lateral radiographs. METHODS: Two fellowship-trained spine surgeons evaluated the images of 50 patients who had both lateral cervical radiographs and EOS images acquired within a 12-month period. The number of visible cortices of the vertebral bodies of C6-T2 were scored 0-4. Patient body mass index and the presence of spondylolisthesis >2 mm at each level was recorded. The incidence of insufficient visibility to detect spondylolisthesis at each level was also calculated for both modalities. RESULTS: On average, there were more visible cortices with EOS versus XR at T1 and T2, whereas visible cortices were equal at C6 and C7. Patient body mass index was inversely correlated with cortical visibility on XR at T2 and on EOS at T1 and T2. There was a significant difference in the incidence of insufficient visibility to detect spondylolisthesis on EOS versus XR at C7-T1 and T1-2, but not at C6-7. CONCLUSIONS: EOS imaging is superior at imaging the vertebra of the CTJ. EOS imaging deserves further consideration as a diagnostic tool in the evaluation of patients with cervical deformity given its ability to produce high-quality images of the CTJ with less radiation exposure.

12.
J Med Imaging Radiat Sci ; 51(4S): S107-S111, 2020 12.
Artículo en Inglés | MEDLINE | ID: mdl-32768292

RESUMEN

INTRODUCTION: Failure to effectively communicate between disciplines negatively impacts patient care, and therefore, outcomes and satisfaction. The integration ofspecific communication skill sets between disciplines is not commonly a part oftraditional curriculum across health care programs. CASE AND OUTCOMES: Patient scenario where inter-disciplinary communication is the focus, not the specific patient situation. DISCUSSION: Radiology students in clinical rotation were able to identify instances of failed inter-disciplinary communication within the clinical setting and, using Kolb's Experiential Learning Theory techniques discussed and practiced in didactic training, were able to identify communication techniques to use in similar circumstances. CONCLUSION: Fostering the development of inter-disciplinary communication strategiesin the educational setting provides the foundation for continued use at the bedside. Identifying barriers to effective communication, discussing the ramifications of communication failures, examining solutions provided in evidence-based practice and learning how to apply these solutions to a variety of clinical settings can positively impact patient outcomes, and therefore, satisfaction, as well as enhance employee engagement.


Asunto(s)
Comunicación Interdisciplinaria , Satisfacción del Paciente , Satisfacción Personal , Radiología/educación , Compromiso Laboral , Adulto , Femenino , Humanos , Masculino
13.
J Med Imaging Radiat Sci ; 51(3): 354-357, 2020 09.
Artículo en Inglés | MEDLINE | ID: mdl-32703753

RESUMEN

Mentoring occurs every day in the workplace, as experienced employees (mentors) help guide inexperienced ones (protégés) toward a common goal. Both the mentor and protégé possess hallmark characteristics that contribute to a successful mentorship. The typology of mentoring includes formal versus informal, as well as group, one-on-one, peer, remote, and invisible mentors. The benefits of these mentorships can impact students, inexperienced employees, health care institutions, education institutions, patient care, and the mentors themselves. Finally, there are recommendations for fostering mentoring for educators and managers.


Asunto(s)
Tutoría , Radiología/educación , Docentes Médicos/psicología , Humanos , Relaciones Interprofesionales , Mentores/psicología , Estudiantes de Medicina/psicología
14.
Clin Spine Surg ; 33(8): E369-E375, 2020 10.
Artículo en Inglés | MEDLINE | ID: mdl-32205522

RESUMEN

STUDY DESIGN: This was a prospective study. OBJECTIVE: This study aims to determine the perspectives of patients seeking spine care in regard to physician ownership of surgical facilities and to understand the importance of disclosing financial conflicts. SUMMARY OF BACKGROUND DATA: There has been limited investigation regarding patient perceptions of the proprietary structure of surgical facilities. METHODS: Patients seeking treatment for spine pathology completed an 8-item survey. The questions assessed if patients acknowledged the owners of surgical facilities, if the patient thought knowledge of ownership is important, who they perceived as most qualified to own surgical facilities, preference of communication of ownership, and impact of facility ownership on care. RESULTS: A total of 200 patients completed the survey. When patients were asked whom they thought owned the hospital, most reported private hospital corporations followed by universities/medical schools and insurance companies. With regard to whom patients thought owned an ambulatory surgical center, most reported physicians, followed by private hospital corporations and individual investors. When asked how important it is to know the financial stakeholders of a surgical facility, 73.5% of patients stated "very important" or "somewhat important." Most patients reported they were not aware of who owned the facility. Regarding how facility owners should be communicated, 31.0% answered "written document," whereas 25.0% preferred verbal communication with the staff/surgeon. When asked how much impact the owner of a surgical facility has on their care, 38.0% of patients responded, "strong impact," followed by "moderate impact," (43.0%), and "little or no impact" (19.0%). Patients thought that physicians were the most qualified to own an ambulatory surgical center, followed by universities/medical schools and private hospital corporations. CONCLUSIONS: The pretreatment perception of patients referred to a spine clinic favored the opinion that physicians were the most qualified to own and manage surgical facilities. Therefore, physicians should be encouraged to share disclosures with patients as their ownership of surgical facilities is viewed favorably.


Asunto(s)
Ortopedia , Propiedad , Aceptación de la Atención de Salud , Médicos , Adulto , Femenino , Humanos , Illinois , Masculino , Persona de Mediana Edad , Encuestas y Cuestionarios
15.
J Am Chem Soc ; 142(16): 7699-7708, 2020 Apr 22.
Artículo en Inglés | MEDLINE | ID: mdl-32212655

RESUMEN

Controlled covalent functionalization of graphitic surfaces with molecular scale precision is crucial for tailored modulation of the chemical and physical properties of carbon materials. We herein present that porous self-assembled molecular networks (SAMNs) act as nanometer scale template for the covalent electrochemical functionalization of graphite using an aryldiazonium salt. Hexagonally aligned achiral grafted species with lateral periodicity of 2.3, 2.7, and 3.0 nm were achieved utilizing SAMNs having different pore-to-pore distances. The unit cell vectors of the grafted pattern match those of the SAMN. After the covalent grafting, the template SAMNs can be removed by simple washing with a common organic solvent. We briefly discuss the mechanism of the observed pattern transfer. The unit cell vectors of the grafted pattern align along nonsymmetry axes of graphite, leading to mirror image grafted domains, in accordance with the domain-specific chirality of the template. In the case in which a homochiral building block is used for SAMN formation, one of the 2D mirror image grafted patterns is canceled. This is the first example of a nearly crystalline one-sided or supratopic covalent chemical functionalization. In addition, the positional control imposed by the SAMN renders the functionalized surface (homo)chiral reaching a novel level of control for the functionalization of carbon surfaces, including surface-supported graphene.

16.
Sci Rep ; 10(1): 4114, 2020 Mar 05.
Artículo en Inglés | MEDLINE | ID: mdl-32139839

RESUMEN

Chemical reaction with diazonium molecules has revealed to be a powerful method for the surface chemical modification of graphite, carbon nanotubes and recently also of graphene. Graphene electronic structure modification using diazonium molecules is strongly influenced by graphene growth and by the supporting materials. Here, carrying on a detailed study of core levels and valence band photoemission measurements, we are able to reconstruct the interface chemistry of trimethoxybenzenediazonium-based molecules electrochemically grafted on graphene on copper. The band energy alignment at the molecule-graphene interface has been traced revealing the energy position of the HOMO band with respect to the Fermi level.

18.
Neurospine ; 16(3): 618-625, 2019 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-31154695

RESUMEN

OBJECTIVE: Current literature has not shown if using either allograft or autograft differentially affects postoperative cervical sagittal parameters. The goal of this study was to compare sagittal alignment and patient-reported outcomes following anterior cervical discectomy and fusion (ACDF) with allograft versus autograft. METHODS: A retrospective cohort analysis of patients who underwent single-level ACDF was conducted. Preoperative, immediate postoperative, and final follow-up radiographic assessments were conducted and included: change in C2-7 lordosis, T1 slope, levels fused, sagittal vertical axis (SVA), fusion mass lordosis, and proximal and distal adjacent segment degeneration (ASD). Patient-reported outcomes were obtained using the Neck Disability Index and visual analogue scale scores for neck and arm. RESULTS: A total of 404 patients were assessed; 353 using allograft and 51 using autograft. No significant differences existed in demographics. Cervical lordosis improved in both groups without significant changes in SVA. Autograft group had a significantly greater amount of lordosis at the proximal segment on immediate postoperative radiographs and less overall cervical lordosis at final follow-up. Sagittal parameters were similar at each time point without significant changes between the 3-time points. No significant differences existed in radiographic ASD or reoperation rates. Fusion rates exceeded 96% in both groups. No significant differences existed between preoperative, postoperative, or change in patient-reported outcomes between the 2 groups. CONCLUSION: Sagittal alignment is maintained following ACDF when using either allograft or autograft. Radiographic evidence of ASD is present in both groups; however, this was not considered clinically significant, given low rates of pseudarthrosis or reoperation. No significant differences exist between groups in terms of patient-reported outcomes.

19.
ACS Nano ; 13(5): 5559-5571, 2019 May 28.
Artículo en Inglés | MEDLINE | ID: mdl-31013051

RESUMEN

A convenient covalent functionalization approach and nanopatterning method of graphite and graphene is developed. In contrast to expectations, electrochemically activated dediazotization of a mixture of two aryl diazonium compounds in aqueous media leads to a spatially inhomogeneous functionalization of graphitic surfaces, creating covalently modified surfaces with quasi-uniform spaced islands of pristine graphite or graphene, coined nanocorrals. Cyclic voltammetry and chronoamperometry approaches are compared. The average diameter (45-130 nm) and surface density (20-125 corrals/µm2) of these nanocorrals are tunable. These chemically modified nanostructured graphitic (CMNG) surfaces are characterized by atomic force microscopy, scanning tunneling microscopy, Raman spectroscopy and microscopy, and X-ray photoelectron spectroscopy. Mechanisms leading to the formation of these CMNG surfaces are discussed. The potential of these surfaces to investigate supramolecular self-assembly and on-surface reactions under nanoconfinement conditions is demonstrated.

20.
Chem Commun (Camb) ; 55(15): 2226-2229, 2019 Feb 14.
Artículo en Inglés | MEDLINE | ID: mdl-30706910

RESUMEN

By using a novel protocol to spatially confine molecules in well-defined small 2D areas, the so-called nanocorrals, we show using scanning tunneling microscopy (STM) how this kind of confinement affects self-assembled molecular network (SAMN) formation at a liquid-solid interface. The 2D lateral confinement, imposed by the size of the nanocorrals, has a clear impact on the phase selectivity of a molecule that can form both low-density and high-density SAMNs, the high-density phase being promoted by the confinement.

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