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BACKGROUND: A safe and efficacious hemostatic product with a long shelf-life is needed to reduce mortality from hemorrhage due to trauma and improve surgical outcomes for persons with platelet deficiency or dysfunction. Thrombosomes, a trehalose-stabilized, leukoreduced, pooled blood group-O freeze-dried platelet-derived hemostatic (FPH) with a 3-year shelf-life, may satisfy this need. OBJECTIVES: To characterize the mechanism of action of FPH. METHODS: FPH's ability to adhere to collagen, aggregate with and without platelets, and form clots was evaluated in vitro. Nonobese diabetic-severe combined immunodeficiency mouse models were used to assess circulation persistence and hemostatic efficacy. RESULTS: FPH displays the morphology and surface proteins of activated platelets. FPH adheres to collagen, aggregates, and promotes clots, producing an insoluble fibrin mesh. FPH is rapidly cleared from circulation, has hemostatic efficacy comparable to apheresis platelets in a murine tail-cut, and acts in a dose-dependent manner. CONCLUSION: FPH is a first-in-class investigational treatment and shows strong potential as a hemostatic agent that is capable of binding exposed collagen, coaggregating with endogenous platelets, and promoting the coagulation cascade. These properties may be exploited to treat active platelet-related or diffuse vascular bleeding. FPH has the potential to fulfill a large unmet patient need as an acute hemostatic treatment in severe bleeding, such as surgery and trauma.
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Hemostáticos , Trombosis , Humanos , Animales , Ratones , Hemostáticos/farmacología , Hemostasis , Plaquetas/metabolismo , Coagulación Sanguínea , Hemorragia/metabolismo , Colágeno/metabolismo , Trombosis/metabolismoRESUMEN
Children continue to experience harm when undergoing clinical procedures despite increased evidence of the need to improve the provision of child-centred care. The international ISupport collaboration aimed to develop standards to outline and explain good procedural practice and the rights of children within the context of a clinical procedure. The rights-based standards for children undergoing tests, treatments, investigations, examinations and interventions were developed using an iterative, multi-phased, multi-method and multi-stakeholder consensus building approach. This consensus approach used a range of online and face to face methods across three phases to ensure ongoing engagement with multiple stakeholders. The views and perspectives of 203 children and young people, 78 parents and 418 multi-disciplinary professionals gathered over a two year period (2020-2022) informed the development of international rights-based standards for the care of children having tests, treatments, examinations and interventions. The standards are the first to reach international multi-stakeholder consensus on definitions of supportive and restraining holds. Conclusion: This is the first study of its kind which outlines international rights-based procedural care standards from multi-stakeholder perspectives. The standards offer health professionals and educators clear evidence-based tools to support discussions and practice changes to challenge prevailing assumptions about holding or restraining children and instead encourage a focus on the interests and rights of the child. What is Known: ⢠Children continue to experience short and long-term harm when undergoing clinical procedures despite increased evidence of the need to improve the provision of child-centred care. ⢠Professionals report uncertainty and tensions in applying evidence-based practice to children's procedural care. What is New: ⢠This is the first study of its kind which has developed international rights-based procedural care standards from multi-stakeholder perspectives. ⢠The standards are the first to reach international multi-stakeholder consensus on definitions of supportive and restraining holds.
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Consenso , Técnicas y Procedimientos Diagnósticos , Pediatría , Adolescente , Humanos , Técnicas y Procedimientos Diagnósticos/ética , Técnicas y Procedimientos Diagnósticos/normas , Niño , Pediatría/ética , Pediatría/normasRESUMEN
Children attending hospital for radiological procedures can experience uncertainty, anxiety and distress; this can result in sub-optimal experiences for children, poor scan quality and the need for radiological procedures to be rescheduled or sedation to be used. The preparation and education of children before clinical procedures has been shown to have a positive influence on procedural outcomes. This scoping review aimed to locate and examine the evidence relating to non-invasive interventions and methods to prepare, educate and familiarise children for radiological procedures within a healthcare setting. A comprehensive search strategy identified 36 articles. A narrative synthesis approach was adopted to make sense of the key findings. Studies investigated a range of radiological procedures (MRI, plain radiographs, CT, fluoroscopy and Micturating cystourethrogram) using a wide range of interventions (smartphone applications, storybooks, videos, mock scanners) which varied by method, mode of delivery and target audience. The outcomes used to evaluate the value and impact of the interventions are wide, varied and inconsistently applied making it difficult to judge which interventions offer the optimal impact on scan quality, scan completion and children's experiences. This review highlights that there is a need to further understand which specific elements of the non-invasive interventions 'work best' for children. There is a need for consistency on the outcomes measured and for these measures to include child-centred outcomes alongside scan quality and length of radiological procedure.
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Since its founding in 1990, the profession of oncology navigation has grown and evolved. Although core concepts serve as a unifying thread throughout the profession, there has not been formal agreement on standardization of definitions, scopes, and roles for the various types of navigators. This has created challenges for sustainability, including reimbursement for navigation services. Emerging from the Biden Cancer Initiative's patient navigation working group, the Professional Oncology Navigation Task Force was created to serve as the voice of professional oncology organizations with an ultimate goal of solidifying definitions, scopes, and roles of navigators across the care continuum. Task group members are committed to cross-disciplinary partnership (including nursing, social work, and nonclinically licensed navigation). As the Task Force worked to define, refine, and disseminate professional standards (with input from the navigation community), the work done by the National Navigation Roundtable was vital to our evolving understanding of the profession. This article outlines the importance of that partnership and highlights the relevant findings of each article in this supplement of Cancer to the standardization work. LAY SUMMARY: Within the profession of oncology navigation, definitions, scopes, and roles of navigators have not been solidified. Standardization of the profession is critical to allow for continued growth and evolution as well as policy direction. This article introduces the work of the Professional Oncology Navigation Task Force, which created the Oncology Navigation Standards of Professional Practice with input from professional leaders and community stakeholders. The article also links the work of the National Navigation Roundtable and the critical need to coordinate and amplify efforts across groups.
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Neoplasias , Navegación de Pacientes , Continuidad de la Atención al Paciente , Humanos , Neoplasias/terapiaRESUMEN
Patients and those close to them often have an intimate understanding of their condition and can participate in a broad range of clinical processes. During times of deterioration, their concerns might go unheard. Advocacy of family and friends can fulfil an important safety function and can support patients and healthcare professionals looking after them. If concerns by patients are not heard by the patient's primary team in hospital, patient and family activated rapid response systems allow patients and family members to alert critical care outreach teams directly. These types of systems are stipulated by regulators in Australia and in parts of the USA, and there are examples in the UK built around the 'Call for Concern' model championed by the Royal Berkshire Hospital. Implementation is not without its problems and requires a deep understanding of barriers and enablers. Empowering patients to escalate directly might help to change safety culture and have protective effects for patients and staff. Policy makers are urged to consider standardised regulation to aid implementation.
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This paper reports findings from a study of the practical experiences of junior diagnostic radiographers in the UK when managing patients with dementia. Extended semi-structured interviews with six participants (mean experience in diagnostic radiography = 3.5 years) were analysed using interpretative phenomenological analysis. Findings highlight that participants' recurrently cited lack of confidence around their knowledge of dementia, and regular treatment of the condition as a 'generic' thing in practice, had sometimes damaged clinical interaction, particularly when the participant was feeling institutional time pressures. Education for new professionals was seen as lacking in both quantity and context-relevance, with implications for professional confidence and ethical practice. Carers and family members were viewed by participants as potentially positive and negative forces within an examination context, and technological advances in radiography were taken to be clinically advantageous but also actively detrimental to the effective interpersonal care of their patients.
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Competencia Clínica , Demencia/diagnóstico por imagen , Relaciones Profesional-Paciente , Radiografía , Humanos , Entrevistas como Asunto , Investigación Cualitativa , Reino UnidoRESUMEN
PURPOSE: The aim was to compare the power of spectacles donated to a recycled spectacle program to the custom-made spectacle refractive prescriptions dispensed in a developing country. METHODS: Two hundred consecutive prescriptions were audited in an optical dispensary in Timor-Leste, a developing nation. These refractions were compared against measurements of 2,075 wearable donated spectacles. We determined how many of the 200 prescriptions could be matched to a donated spectacle measurement, how many donated spectacles could be tried for each prescription and how long it would take to find the matched spectacles. RESULTS: There were 1,854 donated spectacles identified as being suitable for comparison with the 200 refractive prescriptions. Twenty-nine out of 200 prescriptions (14.5 per cent) were matched to at least one pair of donated spectacles. CONCLUSION: Recycling all spectacles is not cost-effective in a developing country that has the ability to make custom-made spectacles and dispense ready-made spectacles.
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Países en Desarrollo , Equipos Desechables/provisión & distribución , Anteojos/provisión & distribución , Errores de Refracción/terapia , Femenino , Humanos , Masculino , Morbilidad , Errores de Refracción/epidemiología , Estudios Retrospectivos , Timor Oriental/epidemiología , Australia OccidentalRESUMEN
BACKGROUND/AIMS: Previous studies have demonstrated a small but significant transient increase in intraocular pressure (IOP) in individuals wearing certain types of swimming goggles. These findings suggested that wearing goggles could represent a significant risk factor for developing and/or worsening of glaucoma in people who swim regularly. The aim of this study was to determine if glaucoma prevalence is increased among adult swimmers. METHODS: A comprehensive ocular examination was performed on 231 members of local swimming clubs and 118 non-swimmers. IOP was measured using iCARE tonometry and visual field testing was performed using Humphrey SITA fast 24-2. Retinal nerve fibre layer thickness was assessed using spectral domain optical coherence tomography. RESULTS: Based on measurements of IOP and visual fields, we did not detect any new cases of glaucoma in our cohort of frequent swimmers. Similarly, we found no difference in the thickness of the retinal nerve fibre layer between swimmers and non-swimmers; the mean right global thickness (GT) was 94.0â µm (IQR 88.0, 100.3) vs 93.0â µm (IQR 89.0, 101.0), respectively (p=0.976), and the median left GT was 93.7â µm (IQR 88.0, 101) in both groups (p=0.799). CONCLUSIONS: These findings suggest that frequently wearing swim goggles does not lead to an increased risk of glaucoma over time in adults.
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Dispositivos de Protección de los Ojos , Glaucoma/epidemiología , Natación , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Presión Intraocular , Masculino , Persona de Mediana Edad , Fibras Nerviosas , Disco Óptico/anatomía & histología , Prevalencia , Células Ganglionares de la Retina/citología , Factores de Riesgo , Tomografía de Coherencia Óptica , Tonometría Ocular , Pruebas del Campo Visual , Campos Visuales , Adulto JovenRESUMEN
BACKGROUND AND PURPOSE: In the UK, there is a continuing effort within the National Health Service to reduce patient waiting times in emergency departments (EDs). This audit aimed to evaluate whether a reporting radiographer-led discharge system could reduce waiting times from x-ray to discharge with no detrimental effect on patient outcomes. METHODS: A prospective audit over 2 years was conducted. Patients were considered for discharge by a reporting radiographer-led service if they were >5 years old, attended the hospital ED between 9:00 and 17:00, Monday to Friday, had an injury below the elbow in the upper limb or below the knee in the lower limb that required an x-ray, and were able to be discharged home without further medical intervention. Outcomes of interest were overall waiting times, accuracy of diagnosis and re-attendance at the ED within 28 days. RESULTS: Between July 2006 and June 2008, 497 patients met the inclusion criteria and were discharged home by the radiographer-led service, and 2632 were discharged home using standard practices. Overall waiting times were >20 min quicker for the radiographer-led service at 100.9 min. The false negative rate was reduced from 2.09% to 0.2%, and re-attendance at the ED within 28 days for the same injury was reduced from 3.27% to only 0.4% for radiographer-led discharge. CONCLUSIONS: The service reduced waiting times and re-attendance rates while improving the accuracy of diagnosis. The efficacy of such services should be further studied in relation to more complex patient groups.
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Medicina de Emergencia/métodos , Servicio de Urgencia en Hospital/organización & administración , Alta del Paciente , Heridas y Lesiones/diagnóstico por imagen , Adolescente , Adulto , Niño , Auditoría Clínica , Femenino , Humanos , Masculino , Persona de Mediana Edad , Alta del Paciente/estadística & datos numéricos , Readmisión del Paciente/estadística & datos numéricos , Estudios Prospectivos , Radiografía , Reino Unido , Listas de Espera , Adulto JovenRESUMEN
Fluorescent dyes provide specific, sensitive, and multiplexed detection of nucleic acids. To maximize sensitivity, fluorescently labeled reaction products (e.g., cycle sequencing or primer extension products) must be purified away from residual dye-labeled precursors. Successful high-throughput analyses require that this purification be reliable, rapid, and amenable to automation. Common methods for purifying reaction products involve several steps and require processes that are not easily automated. Prolinx, Inc. has devel oped RapXtract superparamagnetic separation technology affording rapid and easy-to-perform methods that yield high-quality product and are easily automated. The technology uses superparamagnetic particles that specifically remove unincorporated dye-labeled precursors. These particles are efficiently pelleted in the presence of a magnetic field, making them ideal for purification because of the rapid separations that they allow. RapXtract-purified sequencing reactions yield data with good signal and high Phred quality scores, and they work with various sequencing dye chemistries, including BigDye and near-infrared fluorescence IRDyes. RapXtract technology can also be used to purify dye primer sequencing reactions, primer extension reactions for genotyping analysis, and nucleic acid labeling reactions for microarray hybridization. The ease of use and versatility of RapXtract technology makes it a good choice for manual or automated purification of fluorescently labeled nucleic acids.