Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 1.016
Filtrar
Mais filtros











Intervalo de ano de publicação
1.
Pediatr Blood Cancer ; : e31308, 2024 Sep 03.
Artigo em Inglês | MEDLINE | ID: mdl-39228075

RESUMO

OBJECTIVE: This study characterized caregivers' beliefs related to early intervention services for children with sickle cell disease (SCD) to gain an indepth understanding of caregivers' experiences and desires for early intervention services. METHODS: Both qualitative and quantitative data were collected from caregivers of children aged 0-4 years with SCD across two sites in the United States. Caregivers completed the Knowledge of Infant Development Inventory, a custom survey about their experiences with early intervention, and a qualitative interview. RESULTS: A total of 127 caregivers were approached, 47 participated in surveys, and 20 completed interviews. Caregivers expressed varying levels of confidence and understanding of developmental milestones across sites. Interviews highlighted three main themes: fear of SCD-related complications, variable buy-in to early intervention, and the importance of provider-caregiver relationships. While some caregivers appreciated early intervention, others questioned its necessity. Caregivers communicated interest in connecting with other families facing similar challenges, emphasizing the need for increased awareness of available resources. CONCLUSIONS: Fear about their child's well-being was expressed by many caregivers, emphasizing the need for a supportive healthcare team that can help families connect with preventive interventions. While about a quarter of children had been referred to rehabilitation services, caregivers were unaware of the elevated risk for developmental delay, which diminished caregiver interest in participating in programs like early intervention. This study underscores the importance of addressing knowledge gaps and overcoming barriers to enhance care for families affected by SCD.

3.
Optica ; 11(4): 569-576, 2024 Apr 20.
Artigo em Inglês | MEDLINE | ID: mdl-39006164

RESUMO

With histopathology results typically taking several days, the ability to stage tumors during interventions could provide a step change in various cancer interventions. X-ray technology has advanced significantly in recent years with the introduction of phase-based imaging methods. These have been adapted for use in standard labs rather than specialized facilities such as synchrotrons, and approaches that enable fast 3D scans with conventional x-ray sources have been developed. This opens the possibility to produce 3D images with enhanced soft tissue contrast at a level of detail comparable to histopathology, in times sufficiently short to be compatible with use during surgical interventions. In this paper we discuss the application of one such approach to human esophagi obtained from esophagectomy interventions. We demonstrate that the image quality is sufficiently high to enable tumor T staging based on the x-ray datasets alone. Alongside detection of involved margins with potentially life-saving implications, staging tumors intra-operatively has the potential to change patient pathways, facilitating optimization of therapeutic interventions during the procedure itself. Besides a prospective intra-operative use, the availability of high-quality 3D images of entire esophageal tumors can support histopathological characterization, from enabling "right slice first time" approaches to understanding the histopathology in the full 3D context of the surrounding tumor environment.

4.
Heliyon ; 10(7): e28207, 2024 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-38571648

RESUMO

Weeds are among the limiting factors that influence low production of economically important crops including cashew (Anacardium occidental L.). Shrub weeds attribute to inter-competition for resources, hinder harvesting and ultimately reduce cashew yields in Tanzania. The current study determined the distribution, characteristics and chemical control option of Dichapetalum Engl in Lindi and Mtwara regions, Southeastern Tanzania. The distribution study involved a survey for weed presence along the areas of Lindi and Mtwara regions. The characterization included distilling, and assessing the growth and development properties of shrub weed. Chemical herbicides; glyphosate 480g. ai/l, 2, 4 D - Dichlorirophenoxyacetic 720g. ai/l, triclopyr 160g a.i./l and 1:1 mixture of glyphosate 480g a.i./l plus triclopyr 160g a.i./L at 15, 20 and 25 mls of formulated product/L of water per 4 m2 were tested on tender, mature and blooming growth stages of D. Stuhlmannii and three spraying frequencies. Findings revealed that the D.stuhlmannii, is a widely distributed shrub weed in Lindi and Mtwara regions. The weed was characterized with three main growth stages of seedling, mature and blooming with a long tap root and evergreen throughout the wet and dry seasons. The tested herbicides revealed the potential suppression of D. Stuhlmannii growth. Glyphosate and a mixture of glyphosate + triclopyr at 15 ml/L outperformed triclopyr and 2, 4 D across all the growth stages. Double spraying of glyphosate and its mixture bettered frequencies of triclopyr and 2, 4 D. The delayed regrowth of suppressed shrub weed took 90-120 days after application of herbicides. The current study recommends for single or double applications of glyphosate herbicides at 15 ml/L or 10,700 ml/ha on tender or mature D. Stuhlmannii in cashew farms. Further studies on the economic feasibility and effect on the microbiota of applied fungicides are required.

5.
Nat Commun ; 15(1): 3379, 2024 Apr 20.
Artigo em Inglês | MEDLINE | ID: mdl-38643180

RESUMO

Transition from traditional high-fiber to Western diets in urbanizing communities of Sub-Saharan Africa is associated with increased risk of non-communicable diseases (NCD), exemplified by colorectal cancer (CRC) risk. To investigate how urbanization gives rise to microbial patterns that may be amenable by dietary intervention, we analyzed diet intake, fecal 16 S bacteriome, virome, and metabolome in a cross-sectional study in healthy rural and urban Xhosa people (South Africa). Urban Xhosa individuals had higher intakes of energy (urban: 3,578 ± 455; rural: 2,185 ± 179 kcal/d), fat and animal protein. This was associated with lower fecal bacteriome diversity and a shift from genera favoring degradation of complex carbohydrates (e.g., Prevotella) to taxa previously shown to be associated with bile acid metabolism and CRC. Urban Xhosa individuals had higher fecal levels of deoxycholic acid, shown to be associated with higher CRC risk, but similar short-chain fatty acid concentrations compared with rural individuals. Fecal virome composition was associated with distinct gut bacterial communities across urbanization, characterized by different dominant host bacteria (urban: Bacteriodota; rural: unassigned taxa) and variable correlation with fecal metabolites and dietary nutrients. Food and skin microbiota samples showed compositional differences along the urbanization gradient. Rural-urban dietary transition in South Africa is linked to major changes in the gut microbiome and metabolome. Further studies are needed to prove cause and identify whether restoration of specific components of the traditional diet will arrest the accelerating rise in NCDs in Sub-Saharan Africa.


Assuntos
Neoplasias Colorretais , Microbioma Gastrointestinal , População da África Austral , Humanos , Neoplasias Colorretais/epidemiologia , Neoplasias Colorretais/microbiologia , Estudos Transversais , Dieta , Dieta Ocidental , Fezes/microbiologia , Metaboloma , África do Sul/epidemiologia , Urbanização
6.
J Cancer Surviv ; 2024 Jan 06.
Artigo em Inglês | MEDLINE | ID: mdl-38182936

RESUMO

PURPOSE: We explored survivors' experiences of chronic bowel symptoms following pelvic radiotherapy, strategies employed in living with these symptoms, effects on daily activities, and roles at home and in the workplace. METHODS: Semi-structured interviews were conducted with 28 individuals (10 gynaecological, 14 prostate, four anal/rectal cancer survivors) who had completed pelvic radiotherapy at least six months prior to data collection and who had experience of bowel symptoms during this post-treatment period. Reflexive thematic analysis was undertaken. RESULTS: We propose four themes describing a process leading from experience of symptoms to withdrawal from activities and roles. These are (1) losing control (the experience of unintended anal leakage or discharge); (2) experiencing embarrassment and fear (the experience of embarrassment or fear of embarrassment as a result of discharge becoming public); (3) managing and reacting (acting to reduce the likelihood of discharge or to prevent this becoming public); and (4) restriction and withdrawal (avoiding specific activities or situations so as to reduce or remove the risk of embarrassment). Returning to the workplace presented additional challenges across these themes. CONCLUSIONS: Impacts of chronic bowel symptoms can be severe. Survivors employ a variety of methods and strategies in living with their symptoms. Some of these support continued role fulfilment but some constitute a withdrawal from pre-treatment roles. Current healthcare provision and statutory protections fail to fully meet needs following pelvic radiotherapy. IMPLICATIONS FOR CANCER SURVIVORS: There is a need to develop and implement evidence-based services and supported self-management programmes for survivors experiencing chronic bowel problems post-radiotherapy.

7.
ACS Appl Mater Interfaces ; 16(3): 3243-3252, 2024 Jan 24.
Artigo em Inglês | MEDLINE | ID: mdl-38190502

RESUMO

This work utilizes EIS to elucidate the impact of catalyst-ionomer interactions and cathode hydroxide ion transport resistance (RCL,OH-) on cell voltage and product selectivity for the electrochemical conversion of CO to ethylene. When using the same Cu catalyst and a Nafion ionomer, varying ink dispersion and electrode deposition methods results in a change of 2 orders of magnitude for RCL,OH- and ca. a 25% change in electrode porosity. Decreasing RCL,OH- results in improved ethylene Faradaic efficiency (FE), up to ∼57%, decrease in hydrogen FE, by ∼36%, and reduction in cell voltage by up to 1 V at 700 mA/cm2. Through the optimization of electrode fabrication conditions, we achieve a maximum of 48% ethylene with >90% FE for non-hydrogen products in a 25 cm2 membrane electrode assembly at 700 mA/cm2 and <3 V. Additionally, the implications of optimizing RCL,OH- is translated to other material requirements, such as anode porosity. We find that the best performing electrodes use ink dispersion and deposition techniques that project well into roll-to-roll processes, demonstrating the scalability of the optimized process.

8.
Oncogene ; 43(11): 804-820, 2024 03.
Artigo em Inglês | MEDLINE | ID: mdl-38279062

RESUMO

HJURP is overexpressed in several cancer types and strongly correlates with patient survival. However, the mechanistic basis underlying the association of HJURP with cancer aggressiveness is not well understood. HJURP promotes the loading of the histone H3 variant, CENP-A, at the centromeric chromatin, epigenetically defining the centromeres and supporting proper chromosome segregation. In addition, HJURP is associated with DNA repair but its function in this process is still scarcely explored. Here, we demonstrate that HJURP is recruited to DSBs through a mechanism requiring chromatin PARylation and promotes epigenetic alterations that favor the execution of DNA repair. Incorporation of HJURP at DSBs promotes turnover of H3K9me3 and HP1, facilitating DNA damage signaling and DSB repair. Moreover, HJURP overexpression in glioma cell lines also affected global structure of heterochromatin independently of DNA damage induction, promoting genome-wide reorganization and assisting DNA damage response. HJURP overexpression therefore extensively alters DNA damage signaling and DSB repair, and also increases radioresistance of glioma cells. Importantly, HJURP expression levels in tumors are also associated with poor response of patients to radiation. Thus, our results enlarge the understanding of HJURP involvement in DNA repair and highlight it as a promising target for the development of adjuvant therapies that sensitize tumor cells to irradiation.


Assuntos
Cromatina , Glioma , Humanos , Centrômero/metabolismo , Proteína Centromérica A/genética , Proteína Centromérica A/metabolismo , Cromatina/genética , Proteínas Cromossômicas não Histona/genética , Proteínas Cromossômicas não Histona/metabolismo , Reparo do DNA/genética , Proteínas de Ligação a DNA/genética , Proteínas de Ligação a DNA/metabolismo , Glioma/genética
9.
Aesthetic Plast Surg ; 48(6): 1094-1103, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37605027

RESUMO

BACKGROUND: Blepharoptosis may result in an unattractive appearance and vision problems. According to the severity of ptosis, patients may undergo correction surgery using upper eyelid retractors. The conventional incision for surgical procedures was the double-eyelid incision, potentially resulting in an obvious and unnatural scar or long-lasting edema and prolonged recovery time. OBJECTIVES: The aim of this study was to introduce a supraciliary incision as an alternative to the double-eyelid incision for blepharoptosis correction that creates a scarless, natural appearance with a quick recovery time. METHODS: From June 2019 to June 2021, 32 patients (36 eyelids) underwent blepharoptosis correction through a supraciliary incision. MRD1, the height of the eyelid fissure, and the patient's satisfaction with the shape and scar as well as postoperative complications (eyelid insufficiency, conjunctival prolapse, inadequate correction of ptosis, and excessive correction of ptosis). RESULTS: All 32 patients (36 eyelids) were followed up for 6 to 18 months, with an average follow-up of 11.6 months. The postoperative satisfaction rate was 96.43%. There was no overcorrection, but one patient (1 eyelid, 2.8%) was under correction that required secondary correction. One patient (1 eyelid, 2.8%) experienced conjunctival prolapse. Sixteen patients showed lagophthalmos early after surgery, in which one patient experienced early-stage keratitis and completely recovered within two months. CONCLUSION: Blepharoptosis correction via supraciliary incision allows for broader indications and fewer surgical scars without disrupting eyelid integrity, resulting in quick recovery after surgery. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .


Assuntos
Blefaroplastia , Blefaroptose , Humanos , Povo Asiático , Blefaroplastia/métodos , Blefaroptose/cirurgia , Cicatriz/cirurgia , Estudos de Coortes , Estética , Satisfação do Paciente , Estudos Retrospectivos , Resultado do Tratamento , Complicações Pós-Operatórias
10.
Am J Surg ; 227: 72-76, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37802703

RESUMO

BACKGROUND: Coagulation profiles following major trauma vary depending on injury pattern and degree of shock. The physiologic mechanisms involved in coagulation function at any given time are varied and remain poorly understood. Thromboelastography (TEG) has been used evaluate coagulation profiles in the trauma population with some reports demonstrating a spectrum of fibrinolysis to fibrinolytic shutdown on initial presentation. The objective of this study was to evaluate the fibrinolytic profile of patients with TBI using thromboelastography (TEG). We hypothesized that patients with TBI would demonstrate low fibrinolytic activity. METHODS: All trauma activations at an ACS-verified level 1 trauma center received a TEG analysis upon arrival from December 2019 to June 2021. A retrospective review of the results and outcomes was conducted, and TBI patients were compared to patients without TBI. Linear regression was used to evaluate the effect of patient and injury factors on fibrinolysis. Hyperfibrinolysis was defined as LY30 â€‹> â€‹7.7%, physiologic fibrinolysis as LY30 0.6-7.7%, and fibrinolytic shutdown as LY30 â€‹< â€‹0.6%. RESULTS: A total of 1369 patients received an admission TEG analysis. Patients with TBI had a significantly higher median ISS (16 vs. 8, p â€‹< â€‹0.001), lower median admission Glasgow Coma Scale (14 vs. 15, p â€‹< â€‹0.001), longer intensive care unit length of stay (3 vs. 2 days, p â€‹< â€‹0.0001), increased ventilator days (216 vs. 183, p â€‹< â€‹0.001), higher mortality (14.6% vs. 5.1%, p â€‹< â€‹0.001), but lower shock index (0.6 vs. 0.7, p â€‹< â€‹0.0001) compared to those without TBI. Median LY30 was found to be decreased in the TBI group (0.1 vs. 0.2, p â€‹= â€‹0.0006). Patients with TBI were found to have a higher rate of fibrinolytic shutdown compared those without TBI (68.7% vs. 63.5%, p â€‹= â€‹0.054). ISS, sex, and shock index were found to be predictive of LY30 on linear regression, but TBI was not (Β: 0.09, SE: 0.277, p â€‹= â€‹0.745). The rate of DVT/PE did not appear to be elevated in patients with TBI (0.8%) and without TBI (1.2%). CONCLUSIONS: Trauma patients with and without TBI were found to have high rates of fibrinolytic shutdown. Although there was a high incidence of fibrinolytic shutdown, it did not appear to have an impact on the rate of thrombotic complications. The clinical significance of these results is unclear and differs significantly from recent reports which demonstrated that TBI is associated with a 25% rate of fibrinolytic shutdown. Further investigation is needed to better define the fibrinolytic pathway in patients with trauma and TBI to develop optimal treatment algorithms.


Assuntos
Transtornos da Coagulação Sanguínea , Lesões Encefálicas Traumáticas , Ferimentos e Lesões , Humanos , Transtornos da Coagulação Sanguínea/etiologia , Transtornos da Coagulação Sanguínea/tratamento farmacológico , Fibrinólise/fisiologia , Testes de Coagulação Sanguínea/efeitos adversos , Tromboelastografia/efeitos adversos , Tromboelastografia/métodos , Ferimentos e Lesões/complicações
11.
Arch Biochem Biophys ; 750: 109805, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-37913855

RESUMO

BACKGROUND: The extracellular matrix (ECM) is a complex tridimensional scaffold that actively participates in physiological and pathological events. The objective of this study was to test whether structural proteins of the ECM and glycosaminoglycans (GAGs) may favor the retention of human apolipoprotein A-I (apoA-I) variants associated with amyloidosis and atherosclerosis. METHODS: Biopolymeric matrices containing collagen type I (Col, a main macromolecular component of the ECM) with or without heparin (Hep, a model of GAGs) were constructed and characterized, and used to compare the binding of apoA-I having the native sequence (Wt) or Arg173Pro, a natural variant inducing cardiac amyloidosis. Protein binding was observed by fluorescence microscopy and unbound proteins quantified by a colorimetric assay. RESULTS: Both, Wt and Arg173Pro bound to the scaffolds containing Col, but the presence of Hep diminished the binding efficiency. Col-Hep matrices retained Arg173Pro more than the Wt. The retained protein was only partially removed from the matrices with saline solutions, indicating that electrostatic interactions may occur but are not the main driving force. Using in addition thermodynamic molecular simulations and size exclusion chromatography approaches, we suggest that the binding of apoA-I variants to the biopolymeric matrices is driven by many low affinity interactions. CONCLUSIONS: Under this scenario Col-Hep scaffolds contribute to the binding of Arg173Pro, as a cooperative platform which could modify the native protein conformation affecting protein folding. GENERAL SIGNIFICANCE: We show that the composition of the ECM is key to the protein retention, and well characterized biosynthetic matrices offer an invaluable in vitro model to mimic the hallmark of pathologies with interstitial infiltration such as cardiac amyloidosis.


Assuntos
Amiloidose , Heparina , Humanos , Amiloidose/metabolismo , Apolipoproteína A-I/genética , Apolipoproteína A-I/química , Colágeno/metabolismo , Matriz Extracelular/metabolismo , Heparina/metabolismo
12.
Neurosurg Focus Video ; 9(2): V13, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37859943

RESUMO

The objective of this video was to demonstrate technical nuances of intradural spinal meningioma (ISM) resection through a high-quality surgical video. The authors describe 3 patients with ISM in the cervicomedullary, cervical, and thoracic regions. Patients underwent surgery in the prone position with laminectomy, dorsal durotomy, and then resection of the mass. Case 1 required a suboccipital craniectomy and dissection of the tumor away from the vertebral artery. In case 2, special emphasis is placed on sectioning the dentate ligament with cord rotation. Case 3 highlights meticulous circumferential arachnoid release and the use of ultrasound. Patients saw significant neurological improvement postoperatively. This video provides clear instruction on location-specific technical nuances of ISM removal.

13.
Enferm Intensiva (Engl Ed) ; 34(3): 156-172, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37684063

RESUMO

CONTEXT: Patients in palliative care are found in different places where care is provided, including the intensive care environment with important role of the nursing staff. OBJECTIVE: The aim of this systematic review was to answer the following question: which nursing interventions are aimed to the palliative care patients who are in the intensive care unit (ICU). DATA SOURCES: US National Library of Medicine (PUBMED), Virtual Health Library (BVS), SciELO, The Cochrane Library (Cochrane) and Lilacs databases were used. DATA EXTRACTION: After applying inclusion and exclusion criteria in accordance with the PRISMA method, a total of 36 entries published between 2010 and 2020 were used. DATA ANALYSIS: The records extracted were analyzed from a qualitative approach, so no statistical analysis was carried out. RESULTS: The findings demonstrated that the interventions that focus on promoting the patient's autonomy and respect their needs on ICU involves effective communication, promoting shared decision with patient and family, individualize care for each patient including the family on the daily care and decisions, maintaining basic nursing care as hygiene and comfort and encouraging self-care, as well as the involvement of nursing palliative care specialists the care is important. Other interventions included promoting a continuing education program for the nursing staff and other professionals involved in caring for patients in palliative care at ICU. CONCLUSION: This review highlighted the need for specific nursing interventions aimed at palliative care patients at ICU to promote patient autonomy and the focus on patient needs, always sharing decisions with the patient and family. However, it showed that there is a need for the continuous training of the nursing staff because factors such as the nurses' lack of technical-scientific knowledge and, concomitantly, the absence of a standardized and specific intervention model linked to a bureaucratic system, make it difficult to carry out a specialized care for this type of patient.


Assuntos
Enfermagem de Cuidados Paliativos na Terminalidade da Vida , Recursos Humanos de Enfermagem , Estados Unidos , Humanos , Cuidados Paliativos , Unidades de Terapia Intensiva , Cuidados Críticos
14.
Public Health ; 224: 118-122, 2023 Sep 25.
Artigo em Inglês | MEDLINE | ID: mdl-37757630

RESUMO

OBJECTIVE: Most respiratory virus surveillance relies on medically attended respiratory illness, but an understanding of the true patterns of infection independent of care-seeking behaviour would enhance clinical and public health responses to respiratory virus outbreaks. We evaluated the potential of decedent surveillance by estimating the burden of respiratory virus infection in decedents in a large, urban medical examiner's office. STUDY DESIGN: Observational. METHODS: In 2020-2022, we tested nasopharyngeal swabs from 4121 decedents in Detroit, Michigan for 15 respiratory viruses, including SARS-CoV-2, respiratory syncytial virus, and influenza virus A and B. We analysed infection prevalence over time and by age, sex, race/ethnicity, and manner of death. RESULTS: Of 4113 valid tests, 30.2% were positive for at least one virus, and 6.1% were positive for multiple viruses. All viruses were detected except for influenza A/H1N1 and influenza B. The most prevalent viruses were SARS-CoV-2 (15.7%), rhinovirus (11.2%), and adenovirus (4.9%), which were detected in all months. Most viruses exhibited decreasing prevalence with age, higher prevalence among Black and Hispanic than among White decedents and lower prevalence among deaths from natural causes; SARS-CoV-2 was a notable exception to the patterns by age and manner of death, instead reflecting community trends in catchment counties. CONCLUSIONS: There was high prevalence and diversity of respiratory viruses in decedents entering a large, urban medical examiner's office. Decedent surveillance could offer a clearer picture of the true underlying burden of infection, motivating public health priorities for intervention and vaccine development, and augmenting data for real-time response to respiratory virus outbreaks.

15.
Head Neck Pathol ; 17(3): 832-850, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37540486

RESUMO

Low-grade myofibroblastic sarcoma (LGMS) represents an atypical tumor composed of myofibroblasts with a variety of histological patterns and with a high tendency to local recurrence and a low probability of distant metastases. LGMS has predilection for the head and neck regions, especially the oral cavity. This study aimed to report 13 new cases of LGMS arising in the oral and maxillofacial region. This study included LGMS cases from five oral and maxillofacial pathology laboratories in four different countries (Brazil, Peru, Guatemala, and South Africa). Their clinical, radiographic, histopathological, and immunohistochemical findings were evaluated. In this current international case series, most patients were females with a mean age of 38.7 years, and commonly presenting a nodular lesion in maxilla. Microscopically, all cases showed a neoplasm formed by oval to spindle cells in a fibrous stroma with myxoid and dense areas, some atypical mitoses, and prominent nucleoli. The immunohistochemical panel showed positivity for smooth muscle actin (12 of 13 cases), HHF35 (2 of 4 cases), ß-catenin (3 of 5 cases), desmin (3 of 11 cases), and Ki-67 (range from 5 to 50%). H-caldesmon was negative for all cases. The diagnosis of LGMS was confirmed in all cases. LGMS shows predominance in young adults, with a slight predilection for the female sex, and maxillary region. LGMS should be a differential diagnosis of myofibroblastic lesions that show a proliferation of spindle cells in a fibrous stroma with myxoid and dense areas and some atypical mitoses, supporting the diagnosis with a complementary immunohistochemical study. Complete surgical excision with clear margins is the treatment of choice. However, long-term follow-up information is required before definitive conclusions can be drawn regarding the incidence of recurrence and the possibility of metastasis.


Assuntos
Fibrossarcoma , Humanos , Feminino , Adulto , Masculino , Fibrossarcoma/patologia , Miofibroblastos/patologia , Cabeça/patologia , Diagnóstico Diferencial , Brasil
16.
Curr Res Transl Med ; 71(3): 103398, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37331225

RESUMO

Advanced systemic mastocytosis (AdvSM) is a rare, life-limiting mast cell (MC) neoplasm, with approximately 70% patients having an associated haematological neoplasm (AHN). Avapritinib, a selective tyrosine kinase inhibitor targeting KIT D816V, has shown potent activity translating clinically into durable responses in the phase 1 EXPLORER (NCT02561988) and phase 2 PATHFINDER (NCT03580655) studies. We report three patients with AdvSM-AHN on avapritinib who achieved complete remission (CR) of SM and were successfully bridged to allogeneic haematopoietic cell transplant (allo-HCT). Two cases additionally highlight the risk of clonal evolution within the AHN component and requirement for close monitoring while on targeted therapy.

17.
Clin Oncol (R Coll Radiol) ; 35(9): e489-e497, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37355414

RESUMO

A systematic review was carried out to evaluate if adjuvant radiotherapy for acinic cell carcinomas (ACCs) of salivary glands improves survival. Twelve retrospective studies published between 2000 and 2020 that analysed the effect of radiotherapy on salivary gland neoplasms and ACCs of salivary glands and met the inclusion criteria were included in the review. The overall quality of the studies was moderate to low. There was no high-quality evidence for improved survival with radiotherapy for ACCs of the salivary gland. Some evidence suggests that there may be an advantage for patients with high-grade tumours, but these data should be interpreted with caution due to the small number of patients and low-quality evidence. Good quality of evidence is lacking. Recommendation for adjuvant radiotherapy for tumours with poor prognostic factors will require discussion and shared decision-making with the patients.


Assuntos
Carcinoma de Células Acinares , Neoplasias das Glândulas Salivares , Humanos , Carcinoma de Células Acinares/radioterapia , Carcinoma de Células Acinares/patologia , Radioterapia Adjuvante , Estudos Retrospectivos , Glândulas Salivares/patologia , Neoplasias das Glândulas Salivares/radioterapia , Neoplasias das Glândulas Salivares/patologia
20.
J Craniofac Surg ; 34(3): e311-e313, 2023 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-36941237

RESUMO

Dermoid cysts are slowly growing benign lesions of ectodermal tissue that often occur in the anterior fontanelle. Clinicians often rely on a negative transillumination test to begin the process of correctly diagnosing a dermoid cyst. However, here the authors present a case of a 7-month-old girl who presents with a transilluminating dermoid cyst.


Assuntos
Fontanelas Cranianas , Cisto Dermoide , Neoplasias Cranianas , Transiluminação , Fontanelas Cranianas/diagnóstico por imagem , Fontanelas Cranianas/patologia , Fontanelas Cranianas/cirurgia , Cisto Dermoide/diagnóstico por imagem , Cisto Dermoide/cirurgia , Humanos , Feminino , Criança , Neoplasias Cranianas/diagnóstico por imagem , Neoplasias Cranianas/cirurgia , Imageamento por Ressonância Magnética , Resultado do Tratamento
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA