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1.
J Hosp Infect ; 151: 109-115, 2024 Jul 18.
Artículo en Inglés | MEDLINE | ID: mdl-39032572

RESUMEN

BACKGROUND: Half of hospitalized patients receive antibiotics, but they are rarely involved in shared decision making (SDM) on antibiotic therapy. We sought to understand the association between patient empowerment and their involvement in SDM on antibiotic therapy. METHODS: From March 2021 to April 2022, we conducted a cross-sectional survey on hospitalized patients receiving antibiotic therapy for ≥1 day in a 1600-bed adult general hospital in Singapore. The questionnaire included seven items (five-point Likert scale) on involvement in SDM from SDM-Q-9 and 10 items (four-point Likert scale) on patient empowerment from HCEQ-10. A multi-variable logistic regression model was constructed to assess for independent associations between the three constructs of patient empowerment and involvement in SDM on antibiotic therapy. RESULTS: Of 636 hospitalized patients, mean age was 57.6 (SD 15.5) years, 61% were males and 37% had tertiary-level education. The majority (90%) were aware that they were on antibiotic therapy, but only 11% of them knew the name of the antibiotic given. After adjusting for age, gender, ethnicity, educational level, and duration of hospital stay, patients with a high-level of involvement in decisions (adjusted odds ratio (AOR) 3.63, 95% confidence interval (CI) 2.19-6.01), interactions with healthcare professionals (AOR 1.77, 95% CI 1.03-3.02), and degree of control over their hospital care (AOR 1.90, 95% CI 1.15-3.12) were more likely to have a high-level of involvement in SDM on antibiotic therapy. CONCLUSIONS: Empowering hospitalized patients with involvement in decisions, interactions with healthcare professionals, and control of their hospital care can increase their participation in SDM on antibiotic therapy in hospitals.

3.
BMC Med ; 22(1): 7, 2024 01 03.
Artículo en Inglés | MEDLINE | ID: mdl-38166923

RESUMEN

The devastating impact of youth mental health concerns is increasingly evident on a global scale. This crisis calls for innovative solutions that are sufficiently accessible, scalable, and cost-effective to support diverse communities around the world. One such solution involves engagement in the arts: incorporating and building upon existing local resources and cultural practices to bolster youth mental health. In this article, we describe the global youth mental health crisis and note major gaps in the knowledge and resources needed to address it. We then discuss the potential for arts- and culture-based strategies to help meet this challenge, review the mounting evidence regarding art's ability to support mental health, and call for action to undertake critical research and its translation into accessible community practices. Four steps are suggested: (1) elevate and prioritize youth voice, (2) develop core outcome measures, (3) identify and analyze successful models around the globe, and (4) generate clear funding pathways for research and translational efforts. Worldwide implementation of arts- and culture-based strategies to address youth mental health will provide critical resources to support the health, wellbeing and flourishing of countless youth across the globe.


Asunto(s)
Arte , Salud Mental , Adolescente , Humanos , Salud del Adolescente
4.
Med J Malaysia ; 78(6): 696-704, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-38031209

RESUMEN

INTRODUCTION: Vitiligo is a chronic disorder resulting in skin depigmentation with reported global prevalence of 1-2%. This disease is often accompanied by psychosocial distress owing to the cosmetic disfigurement associated with it. The primary objective of this study was to determine the prevalence of depression and anxiety among adults with vitiligo in a local tertiary hospital. In addition, this study also evaluated the association of depression and anxiety with patients' characteristics. MATERIALS AND METHODS: This cross-sectional study was conducted among vitiligo patients aged 18 years and older in Hospital Klang, Selangor between October 2021 and June 2022. Assessment instruments used were Vitiligo Area Scoring Index (VASI) and Hospital Anxiety and Depression Scale (HADS). Demographic data and clinical characteristics of vitiligo patients were recorded. RESULTS: Of the 100 participants, 12 (12%) and 21 (21%) had depression and anxiety, respectively. The mean depression score (HADS-depression component) was 3.4 (SD 3.4) and mean anxiety score (HADS-anxiety component) was 4.7 (SD 3.9). There were significantly higher number of patients with abnormal HADS-D score in the age group of 35-51 years (p=0.029), single status (p=0.001), with employment (p=0.014) and disease duration <2 years (p=0.004). Patients in the divorced/widowed group had a significant association with anxiety (p=0.011). CONCLUSION: The prevalence of depression was 12% while anxiety was 21% in our cohort. Vitiligo has a significant psychosocial impact, thus clinicians should actively evaluate the mental health of these patients with the use of screening tools such as HADS and provide appropriate referrals and management.


Asunto(s)
Depresión , Vitíligo , Adulto , Humanos , Persona de Mediana Edad , Depresión/epidemiología , Depresión/etiología , Depresión/diagnóstico , Vitíligo/complicaciones , Vitíligo/epidemiología , Vitíligo/psicología , Prevalencia , Estudios Transversales , Centros de Atención Terciaria , Ansiedad/epidemiología , Ansiedad/etiología , Ansiedad/psicología
5.
Ann Work Expo Health ; 67(8): 938-951, 2023 09 21.
Artículo en Inglés | MEDLINE | ID: mdl-37584489

RESUMEN

BACKGROUND: The nail salon industry in the US comprises mostly immigrant-owned, small mom-and-pop salons that employ primarily first-generation immigrant workers from Asia. Because of the cultural and language barriers, both owners and workers may not avail themselves of the occupational safety resources. We formed an academic-community partnership to co-design a feasibility study and multi-level occupational health intervention for Vietnamese-speaking salon owners, workers, and community-based organization. METHODS: The intervention for each salon included (i) 2-h in-person training covering chemical safety, infection control, musculoskeletal prevention, and workers' rights for both the owners and their employees, (ii) a tailored recommendation report for the owner, and (iii) check-ins with the owner during the 3-month follow-up. Community partner was trained to deliver the in-language training with technical assistance from the research team. Baseline and post-intervention individual data about health symptoms and behaviors, as well as personal chemical exposures were collected and analyzed. RESULTS: A total of 44 participants from 12 consented salons enrolled in the study. One salon dropped out at follow-up due to change of ownership. Analysis of the differences between post-and pre-intervention showed a tendency toward reduction in some self-reported symptoms in the respiratory system, skin, and eyes, neurotoxicity score, as well as chemical exposures. We could not rule out seasonality as an explanation for these trends. Increase in self-efficacy in some areas was observed post-intervention. CONCLUSIONS: Our study demonstrated a successful academic-community partnership to engage community members in the intervention study. While the intervention effects from this feasibility study should be interpreted with caution, our preliminary results indicated that our community-based intervention is a promising approach to reduce work-related exposures among Asian American nail salon workers.


Asunto(s)
Exposición Profesional , Salud Laboral , Humanos , Exposición Profesional/análisis , Philadelphia , Industria de la Belleza , Asiático
6.
J Dent Res ; 102(8): 844-848, 2023 07.
Artículo en Inglés | MEDLINE | ID: mdl-37314086

RESUMEN

Poor oral health affects the health and well-being of older adults in many ways. Despite years of international research investigating poor oral health among older adults, it has remained a largely unresolved problem. The aim of this article is to explore the combination of 2 key frameworks, ecosocial theory and intersectionality, to guide our exploration and understanding of oral health and aging and help inform research, education, policy, and services. Proposed by Krieger, ecosocial theory is concerned with the symbiotic relationship among embodied biological processes and social, historical, and political contexts. Building on the work of Crenshaw, intersectionality explores how social identities such as race, gender, socioeconomic status, and age interconnect in ways that can enhance privilege or compound discrimination and social disadvantage. Intersectionality offers a layered understanding of how power relations reflected in systems of privilege or oppression influence an individual's multiple intersecting social identities. Understanding this complexity and the symbiotic relationships offers an opportunity to reconsider how inequities in oral health for older adults can be addressed in research, education, and practice and increase the focus on equity, prevention, interdisciplinary care, and use of innovative technology.


Asunto(s)
Marco Interseccional , Salud Bucal , Disparidades en el Estado de Salud , Escolaridad
7.
Int J Mol Sci ; 24(6)2023 Mar 20.
Artículo en Inglés | MEDLINE | ID: mdl-36982943

RESUMEN

Colorectal cancers are one of the most prevalent tumour types worldwide and, despite the emergence of targeted and biologic therapies, have among the highest mortality rates. The Personalized OncoGenomics (POG) program at BC Cancer performs whole genome and transcriptome analysis (WGTA) to identify specific alterations in an individual's cancer that may be most effectively targeted. Informed using WGTA, a patient with advanced mismatch repair-deficient colorectal cancer was treated with the antihypertensive drug irbesartan and experienced a profound and durable response. We describe the subsequent relapse of this patient and potential mechanisms of response using WGTA and multiplex immunohistochemistry (m-IHC) profiling of biopsies before and after treatment from the same metastatic site of the L3 spine. We did not observe marked differences in the genomic landscape before and after treatment. Analyses revealed an increase in immune signalling and infiltrating immune cells, particularly CD8+ T cells, in the relapsed tumour. These results indicate that the observed anti-tumour response to irbesartan may have been due to an activated immune response. Determining whether there may be other cancer contexts in which irbesartan may be similarly valuable will require additional studies.


Asunto(s)
Antihipertensivos , Neoplasias Colorrectales , Humanos , Irbesartán/uso terapéutico , Antihipertensivos/uso terapéutico , Linfocitos T CD8-positivos/patología , Neoplasias Colorrectales/tratamiento farmacológico , Neoplasias Colorrectales/genética , Neoplasias Colorrectales/patología
9.
Med J Malaysia ; 77(5): 585-589, 2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-36169070

RESUMEN

INTRODUCTION: Health needs increase in older age. This translates into higher healthcare utilisation and expenditure compared to any other age group. Much of this is driven by frailty and multimorbidity. Many older people spend their last days in hospital. The aim of this study was to explore the utilisation of healthcare services among older adults admitted to a university hospital in the last 6 months of life. MATERIALS AND METHODS: Patients aged 70 years and over who died on medical wards of a university hospital in 2019 were included based on a stratified sampling approach using three categories. The categories were which medical ward the patient was admitted under, ICD-10 reported cause of death, and gender. The proportion of patients distributed across all three categories was calculated and 200 patients out of 472 deaths in that year were randomly selected to ensure mirrored proportion distributed across these three categories. Data on demographics and healthcare utilisation were collected. Healthcare utilisation parameters included clinical encounters, radiological investigations, and medical procedures undergone. RESULTS: The median age was 83 years with more women (51%) than men. Septicaemia was the commonest cause of death (24.5%), followed by pulmonary disease (21.0%), and cardiovascular disease (19.5%). In the last 6 months before death, median inpatient stay was 9 days. The median number of Emergency Department and outpatient attendance was one episode, respectively, and number of radiology was four investigations. Over one-third of patients had multiple hospital admission. During the terminal admission, the median inpatient stay was 6 days. 45% had a nasogastric tube in-situ. Antibiotics used during the last 24 hours of life and polypharmacy (≥5 medications) were high at 74.5% and 82.5%, respectively. 7% of patients received cardiopulmonary resuscitation. CONCLUSION: This study has provided descriptive evidence of hospital care delivered in the last months of life. The majority had contact with a healthcare team prior to their terminal admission. Many during their terminal admission had healthcare procedures, investigations, antibiotics, and issues of polypharmacy during this time. With an aging population, how care is organised and delivered is important in promoting good care in their later years.


Asunto(s)
Hospitalización , Aceptación de la Atención de Salud , Anciano , Anciano de 80 o más Años , Antibacterianos , Femenino , Hospitales Universitarios , Humanos , Masculino , Estudios Retrospectivos
10.
Immun Ageing ; 19(1): 35, 2022 Aug 04.
Artículo en Inglés | MEDLINE | ID: mdl-35927749

RESUMEN

Traditionally, the immune system is understood to be divided into discrete cell types that are identified via surface markers. While some cell type distinctions are no doubt discrete, others may in fact vary on a continum, and even within discrete types, differences in surface marker abundance could have functional implications. Here we propose a new way of looking at immune data, which is by looking directly at the values of the surface markers without dividing the cells into different subtypes. To assess the merit of this approach, we compared it with manual gating using cytometry data from the Singapore Longitudinal Aging Study (SLAS) database. We used two different neural networks (one for each method) to predict the presence of several health conditions. We found that the model built using raw surface marker abundance outperformed the manual gating one and we were able to identify some markers that contributed more to the predictions. This study is intended as a brief proof-of-concept and was not designed to predict health outcomes in an applied setting; nonetheless, it demonstrates that alternative methods to understand the structure of immune variation hold substantial progress.

11.
J Vet Diagn Invest ; 34(4): 631-637, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-35593583

RESUMEN

Tetratrichomonas gallinarum and Trichomonas gallinae are pathogenic avian parasites that infect a wide range of bird species. The pathologic potential of T. gallinarum is controversial, whereas T. gallinae causes disease in many avian species. Infections are often asymptomatic in doves and pigeons; thus, columbids are presumed to represent the natural hosts for trichomonads. The detection of T. gallinarum and T. gallinae is based on direct microscopic observation or a conventional PCR assay. Microscopy is not very sensitive, and identification of the trichomonads at the genus or species level is not possible. Conventional PCR assays have been developed primarily for phylogenetic studies, which detect a wide range of Trichomonas spp. but do not allow their differentiation. We developed a duplex real-time PCR (rtPCR) assay for the simultaneous detection and differentiation of T. gallinarum and T. gallinae. We found that the rtPCR assay detected 102 plasmid DNA copies of T. gallinarum and as few as 101 plasmid DNA copies of T. gallinae.


Asunto(s)
Enfermedades de las Aves , Trichomonadida , Trichomonas , Animales , Enfermedades de las Aves/diagnóstico , Enfermedades de las Aves/parasitología , Columbidae , ADN , Filogenia , Reacción en Cadena en Tiempo Real de la Polimerasa/veterinaria , Trichomonadida/genética , Trichomonas/genética
12.
Cell Death Dis ; 13(3): 274, 2022 03 28.
Artículo en Inglés | MEDLINE | ID: mdl-35347108

RESUMEN

Over the past decade, immunotherapy delivered novel treatments for many cancer types. However, lung cancer still leads cancer mortality, and non-small-cell lung carcinoma patients with mutant EGFR cannot benefit from checkpoint inhibitors due to toxicity, relying only on palliative chemotherapy and the third-generation tyrosine kinase inhibitor (TKI) osimertinib. This new drug extends lifespan by 9-months vs. second-generation TKIs, but unfortunately, cancers relapse due to resistance mechanisms and the lack of antitumor immune responses. Here we explored the combination of osimertinib with anti-HER3 monoclonal antibodies and observed that the immune system contributed to eliminate tumor cells in mice and co-culture experiments using bone marrow-derived macrophages and human PBMCs. Osimertinib led to apoptosis of tumors but simultaneously, it triggered inositol-requiring-enzyme (IRE1α)-dependent HER3 upregulation, increased macrophage infiltration, and activated cGAS in cancer cells to produce cGAMP (detected by a lentivirally transduced STING activity biosensor), transactivating STING in macrophages. We sought to target osimertinib-induced HER3 upregulation with monoclonal antibodies, which engaged Fc receptor-dependent tumor elimination by macrophages, and STING agonists enhanced macrophage-mediated tumor elimination further. Thus, by engaging a tumor non-autonomous mechanism involving cGAS-STING and innate immunity, the combination of osimertinib and anti-HER3 antibodies could improve the limited therapeutic and stratification options for advanced stage lung cancer patients with mutant EGFR.


Asunto(s)
Carcinoma de Pulmón de Células no Pequeñas , Neoplasias Pulmonares , Acrilamidas , Compuestos de Anilina/farmacología , Compuestos de Anilina/uso terapéutico , Animales , Anticuerpos Monoclonales/farmacología , Anticuerpos Monoclonales/uso terapéutico , Carcinoma de Pulmón de Células no Pequeñas/tratamiento farmacológico , Carcinoma de Pulmón de Células no Pequeñas/patología , Línea Celular Tumoral , Resistencia a Antineoplásicos , Endorribonucleasas , Receptores ErbB/genética , Humanos , Neoplasias Pulmonares/tratamiento farmacológico , Neoplasias Pulmonares/patología , Ratones , Mutación , Recurrencia Local de Neoplasia/tratamiento farmacológico , Nucleotidiltransferasas , Inhibidores de Proteínas Quinasas/farmacología , Proteínas Serina-Treonina Quinasas
13.
J Neural Eng ; 19(1)2022 01 24.
Artículo en Inglés | MEDLINE | ID: mdl-34983040

RESUMEN

Objective.Considerable resources are being invested to enhance the control and usability of artificial limbs through the delivery of unnatural forms of somatosensory feedback. Here, we investigated whether intrinsic somatosensory information from the body part(s) remotely controlling an artificial limb can be leveraged by the motor system to support control and skill learning.Approach.We used local anaesthetic to attenuate somatosensory inputs to the big toes while participants learned to operate through pressure sensors a toe-controlled and hand-worn robotic extra finger. Motor learning outcomes were compared against a control group who received sham anaesthetic and quantified in three different task scenarios: while operating in isolation from, in synchronous coordination, and collaboration with, the biological fingers.Main results.Both groups were able to learn to operate the robotic extra finger, presumably due to abundance of visual feedback and other relevant sensory cues. Importantly, the availability of displaced somatosensory cues from the distal bodily controllers facilitated the acquisition of isolated robotic finger movements, the retention and transfer of synchronous hand-robot coordination skills, and performance under cognitive load. Motor performance was not impaired by toes anaesthesia when tasks involved close collaboration with the biological fingers, indicating that the motor system can close the sensory feedback gap by dynamically integrating task-intrinsic somatosensory signals from multiple, and even distal, body-parts.Significance.Together, our findings demonstrate that there are multiple natural avenues to provide intrinsic surrogate somatosensory information to support motor control of an artificial body part, beyond artificial stimulation.


Asunto(s)
Mano , Cuerpo Humano , Retroalimentación , Retroalimentación Sensorial/fisiología , Mano/fisiología , Humanos , Aprendizaje/fisiología , Corteza Somatosensorial/fisiología
14.
Front Public Health ; 10: 1016136, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36743160

RESUMEN

Introduction: As the field of public health strives to address the impacts of social determinants of health, it has seen increasing interest in community-referral practices that expand health care beyond clinical spaces. However, community arts and culture organizations are rarely included in these practices, despite accumulating evidence of associated health benefits. In addition, such inclusion has not been formally studied. In response, this article offers an evaluation of "CultureRx" in Massachusetts (MA): the first US model of arts on prescription. The program is a partnership between 20 healthcare providers and 12 cultural organizations, in which providers can offer "prescriptions" to cultural experiences to support patients' health. Methods: Evaluation was undertaken to illuminate participant experiences, program successes and barriers, and recommendations for further development. The cultural organizations collected participant data (n = 84) and completed surveys about their own experiences (n = 12). Authors conducted semi-structured focus groups and interviews with healthcare providers (n = 33). Data analysis was customized for each dataset. Results: Findings indicate that participants enjoyed and hoped to repeat their prescribed experiences, which they saw as beneficial to wellbeing. Providers identified the program as a new and critical addition to their toolkits; they also indicated it had a positive effect on their own wellbeing. Cultural organizations reported varied challenges, learnings, and recommendations. Conclusion: The CultureRx pilot suggests that integrating arts/culture assets into health and social care approaches can enrich and improve traditional US models of community referral. By including arts/culture resources when addressing social determinants of health, communities will be better positioned to equitably and holistically advance health.


Asunto(s)
Atención a la Salud , Apoyo Social , Humanos , Proyectos Piloto , Grupos Focales , Massachusetts
15.
QJM ; 115(6): 374-380, 2022 Jun 07.
Artículo en Inglés | MEDLINE | ID: mdl-34051098

RESUMEN

BACKGROUND/INTRODUCTION: Cardio-cerebral infarction (CCI), which involves the simultaneous occurrence of acute ischaemic stroke and acute myocardial infarction, has a reported incidence of 0.0009%. Treatment of CCI presents a dilemma to physicians as both conditions are time critical. Despite the need for standardized treatment protocols, published data are sparse. AIM: We aimed to summarize the reported cardio-cerebral infarction cases in the literature. DESIGN: Meta-analysis. METHODS: Four databases, Pubmed, Embase, Scopus and Google Scholar were searched until 25 August 2020. A title and abstract sieve, full-text review and extraction of data were conducted independently by three authors. RESULTS: A total of 44 cases of CCI were identified from 37 case reports and series; 15 patients (34.1%) were treated using percutaneous coronary intervention (PCI) with stent, 8 patients (18.2%) were treated with a PCI without stent, 10 patients (22.7%) were treated via a cerebral vessel thrombectomy and 8 patients (18.2%) were treated via a thrombectomy of a coronary vessel. For medications, 20 patients (45.5%) were treated with thrombolytics, 10 patients (22.7%) were treated with anticoagulants, 8 patients (18.2%) were treated with antiplatelets and 11 patients (25.0%) were treated with anticoagulants and antiplatelets. Of 44 patients, 10 patients died, and 9 of those were due to cardiac causes. Among the 44 patients, days to death was observed to be a median of 2.0 days (interquartile range (IQR): 1.5, 4.0). The modified Rankin Score was measured in nine patients, with a median score of 2.0 (IQR: 1.0, 2.5) being reported. DISCUSSION/CONCLUSION: The condition of CCI has substantial morbidity and mortality, and further studies are needed to examine the optimal diagnostic and treatment strategies of these patients.


Asunto(s)
Isquemia Encefálica , Intervención Coronaria Percutánea , Accidente Cerebrovascular , Anticoagulantes/uso terapéutico , Isquemia Encefálica/complicaciones , Infarto Cerebral/etiología , Infarto Cerebral/terapia , Humanos , Intervención Coronaria Percutánea/efectos adversos , Accidente Cerebrovascular/etiología , Resultado del Tratamiento
16.
J Curr Glaucoma Pract ; 15(2): 78-85, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34720497

RESUMEN

AIM AND OBJECTIVE: To establish the association between 12-month inter-visits ocular perfusion pressure (OPP) and severity of glaucoma. MATERIALS AND METHODS: A total of 164 eyes (60 primary open-angle glaucoma, 52 normal-tension glaucoma, and 52 primary angle-closure glaucoma) of 164 patients were analyzed in this prospective cohort study. Patients who demonstrated good compliance to treatment were recruited. The severity of glaucoma was stratified according to the Advanced Glaucoma Intervention Study (AGIS) score based on reliable and reproducible visual field analysis at baseline. OPP was obtained at baseline and a 3-monthly follow-up visit over a 12-month duration. The pattern and fluctuation of mean OPP were studied. Repetitive measure ANOVA and one-way ANOVA were used for statistical analysis. RESULTS: The inter-visits mean OPP (p = 0.010), systolic OPP (p = 0.020), diastolic OPP (p = 0.010), systolic blood pressure (p = 0.040), and diastolic blood pressure (p = 0.006) showed significant difference with severity of glaucoma. There was no significant difference between mean inter-visits intraocular pressure (IOP) and severity of glaucoma (p = 0.410). The end-stage glaucoma group had the lowest mean OPP and widest inter-visit mean OPP fluctuation. Early and mild glaucoma patients demonstrated higher mean OPP compared with moderate, severe, and end-stage glaucoma. CONCLUSION: There is a significant association between OPP and the severity of glaucoma. Balancing blood pressure and IOP is important in optimizing adequate perfusion and prevent further damage to the optic nerve head. HOW TO CITE THIS ARTICLE: Ch'ng TW, Chua CY, Ummi Kalsom MA, et al. Ocular Perfusion Pressure and Severity of Glaucoma: Is There a Link? J Curr Glaucoma Pract 2021;15(2):78-85.

17.
Sci Robot ; 6(57)2021 08 18.
Artículo en Inglés | MEDLINE | ID: mdl-34408096

RESUMEN

Magnetic resonance (MR) imaging (MRI) provides compelling features for the guidance of interventional procedures, including high-contrast soft tissue imaging, detailed visualization of physiological changes, and thermometry. Laser-based tumor ablation stands to benefit greatly from MRI guidance because 3D resection margins alongside thermal distributions can be evaluated in real time to protect critical structures while ensuring adequate resection margins. However, few studies have investigated the use of projection-based lasers like those for transoral laser microsurgery, potentially because dexterous laser steering is required at the ablation site, raising substantial challenges in the confined MRI bore and its strong magnetic field. Here, we propose an MR-safe soft robotic system for MRI-guided transoral laser microsurgery. Owing to its miniature size (Ø12 × 100 mm), inherent compliance, and five degrees of freedom, the soft robot ensures zero electromagnetic interference with MRI and enables safe and dexterous operation within the confined oral and pharyngeal cavities. The laser manipulator is rapidly fabricated with hybrid soft and hard structures and is powered by microvolume (<0.004 milliter) fluid flow to enable laser steering with enhanced stiffness and lowered hysteresis. A learning-based controller accommodates the inherent nonlinear robot actuation, which was validated with laser path-following tests. Submillimeter laser steering accuracy was demonstrated with a mean error < 0.20 mm. MRI compatibility testing demonstrated zero observable image artifacts during robot operation. Ex vivo tissue ablation and a cadaveric head-and-neck trial were carried out under MRI, where we employed MR thermometry to monitor the tissue ablation margin and thermal diffusion intraoperatively.


Asunto(s)
Neoplasias de Cabeza y Cuello/diagnóstico por imagen , Neoplasias de Cabeza y Cuello/cirugía , Imagen por Resonancia Magnética/métodos , Microcirugia/métodos , Artefactos , Cadáver , Difusión , Diseño de Equipo , Calor , Humanos , Imagenología Tridimensional , Terapia por Láser , Rayos Láser , Aprendizaje , Redes Neurales de la Computación , Distribución Normal , Fantasmas de Imagen , Procedimientos Quirúrgicos Robotizados , Robótica , Cirugía Bucal/métodos , Termometría/métodos
18.
Trauma Case Rep ; 34: 100498, 2021 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-34258370

RESUMEN

Penetrating cardiac injury in trauma patients is highly morbid. Most cases do not survive long enough to manifest the severe physiologic consequences of massive blood product resuscitation, namely, thoracic compartment syndrome and right ventricular (RV) failure. This case exhibits a thoracic compartment syndrome and RV failure so severe that the open chest management required mechanical separation of a clamshell thoracotomy. The resuscitation and the techniques utilized to maintain an open chest will be described.

19.
Br J Cancer ; 125(11): 1462-1465, 2021 11.
Artículo en Inglés | MEDLINE | ID: mdl-34316019

RESUMEN

The National Cancer Imaging Translational Accelerator (NCITA) is creating a UK national coordinated infrastructure for accelerated translation of imaging biomarkers for clinical use. Through the development of standardised protocols, data integration tools and ongoing training programmes, NCITA provides a unique scalable infrastructure for imaging biomarker qualification using multicentre clinical studies.


Asunto(s)
Biomarcadores de Tumor/metabolismo , Pruebas Diagnósticas de Rutina/métodos , Neoplasias/diagnóstico por imagen , Humanos , Proyectos de Investigación , Reino Unido
20.
J Frailty Aging ; 10(3): 202-210, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34105702

RESUMEN

OBJECTIVES: Due to the lack of a uniform obesity definition, there is marked variability in reported sarcopenic obesity (SO) prevalence and associated health outcomes. We compare the association of SO with physical function using current Asian Working Group for Sarcopenia (AWGS) guidelines and different obesity measures to propose the most optimal SO diagnostic formulation according to functional impairment, and describe SO prevalence among community-dwelling young and old adults. DESIGN: Obesity was defined according to waist circumference (WC), percentage body fat (PBF), fat mass index (FMI), fat mass/fat-free mass ratio (FM/FFM), or body mass index (BMI). SO was defined as the presence of both obesity and AWGS sarcopenia. Muscle function was compared among phenotypes and obesity definitions using ANOVA. Differences across obesity measures were further ascertained using multiple linear regressions to determine their associations with the Short Physical Performance Battery (SPPB). SETTING: Community-dwelling adults 21 years old and above were recruited from a large urban residential town in Singapore. PARTICIPANTS: 535 community-dwelling Singaporeans were recruited (21-90 years old, 57.9% women), filling quotas of 20-40 participants in each sex- and age-group. MEASUREMENTS: We took measurements of height, weight, BMI, waist and hip circumferences, body fat, muscle mass, muscle strength, and functional assessments. Questionnaire-based physical and cognitive factors were also assessed. RESULTS: Overall prevalence of SO was 7.6% (WC-based), 5.1% (PBF-based), 2.7% (FMI-based), 1.5% (FM/FFM-based), and 0.4% (BMI-based). SO was significantly associated with SPPB only in the FMI model (p<0.05), and total variance explained by the different regression models was highest for the FMI model. CONCLUSIONS: Our findings suggest FMI as the most preferred measure for obesity and support its use as a diagnostic criteria for SO.


Asunto(s)
Sarcopenia , Anciano , Anciano de 80 o más Años , Composición Corporal , Índice de Masa Corporal , Estudios Transversales , Femenino , Humanos , Masculino , Fuerza Muscular , Obesidad/diagnóstico , Obesidad/epidemiología , Sarcopenia/diagnóstico , Sarcopenia/epidemiología
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