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1.
J Rheumatol ; 2024 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-38749563

RESUMO

Idiopathic inflammatory myopathies (IIM) are a heterogeneous group of autoimmune disorders classically characterized by proximal skeletal muscle inflammation leading to weakness, but they often possess additional systemic manifestations such as cutaneous, pulmonary, and articular disease.1 Although originally dichotomized as either dermatomyositis (DM) or polymyositis, the discovery of new myositis-specific antibodies (MSA) and myositis-associated antibodies has led to the delineation of more refined IIM patient subgroups.

2.
Rheumatology (Oxford) ; 62(1): 264-269, 2022 12 23.
Artigo em Inglês | MEDLINE | ID: mdl-35579332

RESUMO

OBJECTIVES: Pain is commonly reported in people living with myositis. This study assesses the presence of pain in the subtypes of myositis as well as the frequency of opioid and non-opioid pain medication use. METHODS: A survey was developed and distributed by Myositis Support and Understanding, a patient-led advocacy organization, to members of its group. Multivariate logistic regression analysis and chi-squared tests were performed. RESULTS: A total of 468 participants completed the survey. A total of 423 participants (DM n = 183, PM n = 109 and IBM n = 131) were included, based on reported diagnosis, for final analysis. Some 91.5% of myositis participants reported current or past pain, with 99% attributing their pain to myositis. There was a lower likelihood of pain in participants aged >60 years [odds ratio (OR) 0.2, 95% confidence interval (CI) 0.1, 0.6, P = 0.003]. The percentage of participants reporting pain was statistically different based on myositis type (DM 97.2%, IBM 80.9% and PM 94.5%, P < 0.001), with a higher likelihood of pain in DM compared with IBM (OR 3.7, 95% CI 1.3, 10.2, P = 0.011). There was a lower likelihood of pain in participants aged >60 years (OR 0.2, 95% CI 0.1, 0.6, P = 0.003). Of the 387 participants reporting pain, 335 reported using pain medications (69% prescribed opioids). Male sex, age >60 years and myositis subtype were not associated with likelihood of non-opioid use. CONCLUSION: Pain is a commonly reported symptom in myositis with variable treatment strategies, including opioid medications. This study highlights the importance of addressing pain as part of myositis treatment as well as the need for future studies understanding treatment effectiveness.


Assuntos
Analgésicos Opioides , Miosite , Humanos , Masculino , Analgésicos Opioides/uso terapêutico , Miosite/complicações , Miosite/tratamento farmacológico , Miosite/diagnóstico , Dor/tratamento farmacológico , Dor/etiologia
3.
Cancer ; 126(17): 3900-3906, 2020 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-32478867

RESUMO

During the coronavirus disease 2019 (COVID-19) pandemic, providers and patients must engage in shared decision making regarding the pros and cons of early versus delayed interventions for localized skin cancer. Patients at highest risk of COVID-19 complications are older; are immunosuppressed; and have diabetes, cancer, or cardiopulmonary disease, with multiple comorbidities associated with worse outcomes. Physicians must weigh the patient's risk of COVID-19 complications in the event of exposure against the risk of worse oncologic outcomes from delaying cancer therapy. Herein, the authors have summarized current data regarding the risk of COVID-19 complications and mortality based on age and comorbidities and have reviewed the literature assessing how treatment delays affect oncologic outcomes. They also have provided multidisciplinary recommendations regarding the timing of local therapy for early-stage skin cancers during this pandemic with input from experts at 11 different institutions. For patients with Merkel cell carcinoma, the authors recommend prioritizing treatment, but a short delay can be considered for patients with favorable T1 disease who are at higher risk of COVID-19 complications. For patients with melanoma, the authors recommend delaying the treatment of patients with T0 to T1 disease for 3 months if there is no macroscopic residual disease at the time of biopsy. Treatment of tumors ≥T2 can be delayed for 3 months if the biopsy margins are negative. For patients with cutaneous squamous cell carcinoma, those with Brigham and Women's Hospital T1 to T2a disease can have their treatment delayed for 2 to 3 months unless there is rapid growth, symptomatic lesions, or the patient is immunocompromised. The treatment of tumors ≥T2b should be prioritized, but a 1-month to 2-month delay is unlikely to worsen disease-specific mortality. For patients with squamous cell carcinoma in situ and basal cell carcinoma, treatment can be deferred for 3 months unless the individual is highly symptomatic.


Assuntos
Betacoronavirus , Tomada de Decisão Clínica/métodos , Infecções por Coronavirus/epidemiologia , Infecções por Coronavirus/terapia , Médicos/psicologia , Pneumonia Viral/epidemiologia , Pneumonia Viral/terapia , Neoplasias Cutâneas/epidemiologia , Neoplasias Cutâneas/terapia , COVID-19 , Comorbidade , Infecções por Coronavirus/mortalidade , Infecções por Coronavirus/virologia , Humanos , Hospedeiro Imunocomprometido , Morbidade , Pandemias , Pneumonia Viral/mortalidade , Pneumonia Viral/virologia , SARS-CoV-2 , Tempo para o Tratamento
4.
Artigo em Inglês | MEDLINE | ID: mdl-31712214

RESUMO

Effective treatments for respiratory syncytial virus (RSV) infection are lacking. Here, we report a human proof-of-concept study for RV521, a small-molecule antiviral inhibitor of the RSV-F protein. In this randomized, double-blind, placebo-controlled trial, healthy adults were challenged with RSV-A Memphis-37b. After infection was confirmed (or 5 days after challenge virus inoculation), subjects received RV521 (350 mg or 200 mg) or placebo orally every 12 h for 5 days. The primary endpoint was area under the curve (AUC) for viral load, as assessed by reverse transcriptase quantitative PCR (RT-qPCR) of nasal wash samples. The primary efficacy analysis set included subjects successfully infected with RSV who received ≥1 dose of study drug. A total of 66 subjects were enrolled (n = 22 per group); 53 were included in the primary analysis set (RV521 350 mg: n = 16; 200 mg: n = 18; placebo: n = 19). The mean AUC of RT-qPCR-assessed RSV viral load (log10 PFU equivalents [PFUe]/ml · h) was significantly lower with RV521 350 mg (185.26; standard error [SE], 31.17; P = 0.002) and 200 mg (224.35; SE, 37.60; P = 0.007) versus placebo (501.39; SE, 86.57). Disease severity improved with RV521 350 mg and 200 mg versus placebo (P = 0.002 and P = 0.009, respectively, for AUC total symptom score [score × hours]). Daily nasal mucus weight was significantly reduced (P = 0.010 and P = 0.038 for RV521 350 mg and 200 mg, respectively, versus placebo). All treatment-emergent adverse events were grade 1 or 2. No subjects discontinued due to adverse events. There was no evidence of clinically significant viral resistance, and only three variants were detected. RV521 effectively reduced RSV viral load and disease severity in humans and was well tolerated. (This study has been registered at ClinicalTrials.gov under registration no. NCT03258502.).


Assuntos
Antivirais/farmacologia , Infecções por Vírus Respiratório Sincicial/tratamento farmacológico , Vírus Sincicial Respiratório Humano/efeitos dos fármacos , Proteínas Virais de Fusão/antagonistas & inibidores , Adolescente , Adulto , Antivirais/farmacocinética , Área Sob a Curva , Método Duplo-Cego , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Placebos , Infecções por Vírus Respiratório Sincicial/virologia , Índice de Gravidade de Doença , Resultado do Tratamento , Carga Viral/efeitos dos fármacos , Adulto Jovem
5.
Phys Rev Lett ; 125(2): 025103, 2020 Jul 10.
Artigo em Inglês | MEDLINE | ID: mdl-32701350

RESUMO

We report measurements of lower-hybrid drift waves driving electron heating and vortical flows in an electron-scale reconnection layer under a guide field. Electrons accelerated by the electrostatic potential of the waves exhibit perpendicular and nongyrotropic heating. The vortical flows generate magnetic field perturbations comparable to the guide field magnitude. The measurements reveal a new regime of electron-wave interaction and how this interaction modifies the electron dynamics in the reconnection layer.

6.
Child Adolesc Ment Health ; 24(2): 154-160, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-32677175

RESUMO

BACKGROUND: Mindfulness-based training has been shown to provide benefits for adults with numerous conditions such as cancer, chronic pain, and depression. However, less is known about its impact for young people. Early adolescence (typically 10-14 years) is a time fraught with challenges such as cognitive changes, social, and academic pressures in the form of exams, all of which can provoke anxiety. While there is a lack of effectiveness studies, there is growing interest in the potential for school-based mindfulness programmes to help young people cope with the pressures of modern life. METHODS: This study outlines a qualitative exploration of a school-based targeted mindfulness course. We interviewed 16 young people who had taken part in a 10-week mindfulness course, and held a focus group with three members of teaching staff who delivered the programme. Interviews and focus groups were analysed using applied thematic analysis. RESULTS: While young people felt that they had to take part, once they started the programme they enjoyed it. Young people felt that they learned a range of coping skills, and it had a positive impact on their behaviour. However, the targeted approach of the intervention could lead to young people being stigmatised by their peers. Teaching staff could see the potential benefit of mindfulness courses in schools but felt there were some barriers to be overcome if it were to be implemented in the long term. CONCLUSIONS: Young people were willing to engage in mindful practice and felt it better equipped them to deal with stressful situations.

7.
Inj Prev ; 24(4): 267-271, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-28724551

RESUMO

INTRODUCTION: Those bereaved by suicide are at increased risk of psychological harm, which can be reduced with the provision of timely support. This paper outlines an evaluation of a pilot police-led suicide strategy, in comparison to a coroner-led suicide strategy looking at the number, and length of time it takes for deaths to be recorded for each strategy. Additionally, the police-led strategy offers timely contact from support services for bereaved individuals. We examined what impact this offer of support had on the capacity of support services. METHODS: A mixed methods evaluation compared how long it took for suspected suicides to be recorded using both strategies. The number of referrals received by support services during the pilot strategy were compared with those from previous years. A feedback focus group, and interviews, were held with key stakeholders. RESULTS: The coroner strategy was more consistent at identifying suspected suicides; however, reports were filed quicker by the police. Bereaved individuals were willing to share contact details with police officers and consent for referral to support services which lead to increased referrals. The focus group and interviews revealed that the pilot police strategy needs better integration into routine police practice. CONCLUSIONS: This strategy has the potential to deliver a real benefit to those bereaved by suicide; however, there are still aspects which could be improved.


Assuntos
Cuidados Paliativos na Terminalidade da Vida/organização & administração , Polícia/organização & administração , Encaminhamento e Consulta/organização & administração , Suicídio , Humanos , Projetos Piloto , Avaliação de Programas e Projetos de Saúde , Apoio Social , Suicídio/psicologia , Fatores de Tempo , Reino Unido
8.
Int J Behav Med ; 25(3): 304-311, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29143251

RESUMO

PURPOSE: This paper outlines a service evaluation of an exercise referral scheme for adults suffering from a variety of physical or mental health conditions or who were deemed are at risk of developing such conditions. The evaluation aimed to assess the impact of the scheme at increasing physical activity and at reducing BMI and waist circumference. METHOD: This was a retrospective evaluation looking at levels of physical activity and changes to anthropometric measures over a period of 6 months. Each participant self-reported their levels of physical activity for the previous 7 days at three time points: baseline (T1), at 12-week exit from the scheme (T2), and at 6-month follow-up (T3). Waist circumference and BMI were also recorded by either a health professional or self-reported at these time points. RESULTS: Six hundred seventy participants were referred during the evaluation period, of whom 494 were eligible. Of those 494, 211 completed the 12-week scheme and 135 completed a 6-month follow-up. Significant increases in levels of physical activity were recorded between T1 and T2 and between T1 and T3. Furthermore, significant reductions in waist circumference were noted between T1 and T2 and between T1 and T3, and BMI significantly decreased between T1 and T2 but significantly increased between T2 and T3. CONCLUSION: The service has proven effective at increasing levels of physical activity among participants and has had a positive impact on waist circumference and body for clients who remain engaged with the programme.


Assuntos
Exercício Físico , Encaminhamento e Consulta , Circunferência da Cintura , Adolescente , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Autorrelato , Reino Unido , Adulto Jovem
9.
Ann Surg Oncol ; 24(10): 3073-3081, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-28766195

RESUMO

BACKGROUND: Some suggest that lymph node (LN) evaluation not be performed routinely in women aged ≥70 years with clinically (c) LN-negative (-), hormone receptor (HR)-positive (+) breast cancer. We sought to determine the association of omission of LN evaluation on survival. METHODS: Patients who met the above criteria and were diagnosed from 2004 to 2012 were identified in the NCDB and SEER databases. Overall survival (OS) and breast cancer-specific survival (BCSS) were determined. RESULTS: Using the NCDB, we identified 157,584 cLN- HR+ patients aged ≥70 years in whom survival and LN evaluation data were available. A total of 126,638 patients (80.2%) had regional LN surgery. With a median follow-up of 41.6 months, there was a significant difference in OS between those who had LN evaluation and those who did not (median OS: 100.5 vs. 70.9 months, respectively, p < 0.001). After adjusting for patient age, race, insurance, income, comorbidities, tumor characteristics and treatment, patients who had undergone LN evaluation still had a lower hazard rate for death than those who had not (hazard ratio = 0.633; 95% confidence interval [CI] 0.613-0.654, p < 0.001). We then did a parallel analysis using SEER data that showed LN evaluation was associated with a lower hazard rate for both BCSS (hazard ratio = 0.452; 95% CI 0.427-0.479, p < 0.001) and non-BCSS (hazard ratio = 0.465; 95% CI 0.447-0.482, p < 0.001). CONCLUSIONS: Roughly 20% of patients older than aged 70 years with cLN-, HR+ breast cancer did not have LN evaluation. Those who did had better OS controlling for sociodemographic, pathologic, and treatment variables; however, this may be due to patient selection.


Assuntos
Neoplasias da Mama/mortalidade , Linfonodos/patologia , Receptor ErbB-2/metabolismo , Receptores de Estrogênio/metabolismo , Receptores de Progesterona/metabolismo , Idoso , Idoso de 80 Anos ou mais , Biomarcadores Tumorais/metabolismo , Neoplasias da Mama/metabolismo , Neoplasias da Mama/patologia , Neoplasias da Mama/cirurgia , Estudos de Coortes , Feminino , Seguimentos , Humanos , Linfonodos/metabolismo , Estadiamento de Neoplasias , Programa de SEER , Taxa de Sobrevida
11.
J Card Surg ; 31(12): 772-777, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27774722

RESUMO

BACKGROUND: A lack of donor hearts remains a major limitation of heart transplantation. Hearts from Centers for Disease Control (CDC) high-risk donors can be utilized with specific recipient consent. However, outcomes of heart transplantation with CDC high-risk donors are not well known. We sought to define outcomes, including posttransplant hepatitis and human immunodeficiency virus (HIV) status, in recipients of CDC high-risk donor hearts at our institution. METHODS: All heart transplant recipients from August 2010 to December 2014 (n = 74) were reviewed. Comparison of 1) CDC high-risk donor (HRD) versus 2) standard-risk donor (SRD) groups were performed using chi-squared tests for nominal data and Wilcoxon two-sample tests for continuous variables. Survival was estimated with Kaplan-Meier curves. RESULTS: Of 74 heart transplant recipients reviewed, 66 (89%) received a SRD heart and eight (11%) received a CDC HRD heart. We found no significant differences in recipient age, sex, waiting list 1A status, pretransplant left ventricular assist device (LVAD) support, cytomegalovirus (CMV) status, and graft ischemia times (p = NS) between the HRD and SRD groups. All of the eight HRD were seronegative at the time of transplant. Postoperatively, there was no significant difference in rejection rates at six and 12 months posttransplant. Importantly, no HRD recipients acquired hepatitis or HIV. Survival in HRD versus SRD recipients was not significantly different by Kaplan-Meier analysis (log rank p = 0.644) at five years posttransplant. CONCLUSION: Heart transplants that were seronegative at the time of transplant had similar posttransplant graft function, rejection rates, and five-year posttransplant survival versus recipients of SRD hearts. At our institution, no cases of hepatitis or HIV occurred in HRD recipients in early follow-up.


Assuntos
Centers for Disease Control and Prevention, U.S. , Transplante de Coração , Medição de Risco/estatística & dados numéricos , Doadores de Tecidos , Obtenção de Tecidos e Órgãos/estatística & dados numéricos , Transplantados , Adulto , Distribuição de Qui-Quadrado , Feminino , Infecções por HIV/epidemiologia , Infecções por HIV/prevenção & controle , Transplante de Coração/mortalidade , Transplante de Coração/estatística & dados numéricos , Hepatite/epidemiologia , Hepatite/prevenção & controle , Humanos , Estimativa de Kaplan-Meier , Masculino , Risco , Medição de Risco/métodos , Taxa de Sobrevida , Doadores de Tecidos/estatística & dados numéricos , Transplantados/estatística & dados numéricos , Resultado do Tratamento , Estados Unidos , Adulto Jovem
12.
Healthc Q ; 19(2): 60-66, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27700976

RESUMO

Integrating care for people with complex needs is challenging. Indeed, evidence of solutions is mixed, and therefore, well-designed, shared evaluation approaches are needed to create cumulative learning. The Toronto-based Building Bridges to Integrate Care (BRIDGES) collaborative provided resources to refine and test nine new models linking primary, hospital and community care. It used mixed methods, a cross-project meta-evaluation and shared outcome measures. Given the range of skills required to develop effective interventions, a novel incubator was used to test and spread opportunities for system integration that included operational expertise and support for evaluation and process improvement.


Assuntos
Prestação Integrada de Cuidados de Saúde/métodos , Prestação Integrada de Cuidados de Saúde/organização & administração , Múltiplas Afecções Crônicas , Continuidade da Assistência ao Paciente , Atenção à Saúde/organização & administração , Humanos , Ontário , Avaliação de Resultados em Cuidados de Saúde , Avaliação de Programas e Projetos de Saúde
13.
J Natl Compr Canc Netw ; 13(3): 326-62, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25736010

RESUMO

Chronic lymphocytic leukemia (CLL) and small lymphocytic lymphoma (SLL) are different manifestations of the same disease, which are managed in the same way. The advent of novel monoclonal antibodies (ofatumumab and obinutuzumab) led to the development of effective chemoimmunotherapy regimens. The recently approved small molecule kinase inhibitors (ibrutinib and idelalisib) are effective treatment options for CLL in elderly patients with decreased tolerance for aggressive regimens and in patients with poor prognostic features who do not benefit from conventional chemoimmunotherapy regimens. This portion of the NCCN Guidelines for Non-Hodgkin's Lymphomas describes the recent specific to the incorporation of recently approved targeted therapies for the management of patients with newly diagnosed and relapsed or refractory CLL/SLL.


Assuntos
Leucemia Linfocítica Crônica de Células B/diagnóstico , Leucemia Linfocítica Crônica de Células B/terapia , Algoritmos , Comorbidade , Gerenciamento Clínico , Humanos , Leucemia Linfocítica Crônica de Células B/epidemiologia , Leucemia Linfocítica Crônica de Células B/etiologia , Estadiamento de Neoplasias , Prognóstico
14.
J Am Acad Dermatol ; 72(6): 1010-5.e5, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25981001

RESUMO

BACKGROUND: The panniculitic T-cell lymphomas (TCLs) comprise 2 distinct entities, αß subcutaneous panniculitis-like TCL (SPTCL) and the γδ cutaneous TCLs with pannicular involvement primary cutaneous γδ (PCGD)-TCL. Although outcomes for most patients with SPTCL are favorable, those with PCGD-TCLs generally have an inferior outcome, and treatment strategies have not been well defined. Allogeneic hematopoietic stem cell transplantation (HSCT) has been shown to be a potentially curative strategy in aggressive TCLs and in refractory and advanced-stage mycosis fungoides. OBJECTIVE: We sought to analyze the outcomes of HSCT for panniculitic cutaneous TCL. RESULTS: Fourteen patients (4 SPTCL, 10 PCGD-TCL) presented with primarily pannicular T-cell infiltrates. Seven patients underwent allogeneic HSCT from matched-related donors and matched-unrelated donors of which 4 (57%) are alive (1 SPTCL, 3 PCGD-TCL) at 7.8, 6.9, 6.2, and 0.25 years. Two patients underwent autologous HSCT (1 SPTCL, 1 PCGD-TCL) and both are alive at a median follow-up of 1.91 years. LIMITATIONS: This study is limited by its retrospective nature and small sample size because of the rarity of SPTCL and PCGD-TCL. CONCLUSION: Aggressive therapy followed by allogeneic HSCT is a promising treatment modality for patients with PCGD-TCL.


Assuntos
Transplante de Células-Tronco Hematopoéticas/métodos , Linfoma Cutâneo de Células T/cirurgia , Linfoma de Células T/cirurgia , Paniculite/cirurgia , Neoplasias Cutâneas/cirurgia , Adulto , Idoso , Aloenxertos , Autoenxertos , Biópsia por Agulha , Feminino , Seguimentos , Rejeição de Enxerto , Sobrevivência de Enxerto , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Humanos , Imuno-Histoquímica , Linfoma de Células T/diagnóstico por imagem , Linfoma de Células T/patologia , Linfoma Cutâneo de Células T/diagnóstico por imagem , Linfoma Cutâneo de Células T/patologia , Masculino , Pessoa de Meia-Idade , Paniculite/diagnóstico por imagem , Paniculite/patologia , Tomografia por Emissão de Pósitrons/métodos , Estudos Retrospectivos , Medição de Risco , Estudos de Amostragem , Neoplasias Cutâneas/diagnóstico por imagem , Neoplasias Cutâneas/patologia , Resultado do Tratamento
15.
BMC Health Serv Res ; 15: 494, 2015 Nov 05.
Artigo em Inglês | MEDLINE | ID: mdl-26541288

RESUMO

BACKGROUND: Patients with chronic conditions and multiple comorbidities represent a growing challenge for health care globally. Improved coordination of care is considered essential for providing more effective and cost-efficient care for these patients with complex needs. Osteoarthritis is one of the most common and debilitating chronic conditions, is the most frequent cause of chronic pain yet osteoarthritis care is often poorly-coordinated. Primary care is usually the first contact for patients requiring relief from chronic pain. Our previous work suggests discordance between the policy goals of improving patient care and the experience of osteoarthritis patients. We plan to investigate the empirical context of the primary care setting by focusing on primary physicians' conceptualizations and performance of their work in treating complex patients with chronic pain. This will allow for an exploration of how primary health care is - or could be - integrated with other services that play an important role in health care delivery. METHODS: Our study is an Institutional Ethnography of pain management in family medicine, to be carried out in three phases over 3 years from 2014/15 to 2018. Over the first year we will undertake approximately 80 key informant interviews with primary care physicians, other health care providers, policymakers and clinical experts. In the second year we will focus on mobilizing our networks from year one to assist in the collection of key texts which shape the current context of care. These texts will be analyzed by the research team. In the final year of the study we will focus on synthesizing our findings in order to map the social relations informing care. As is standard and optimal in qualitative research, analysis will be concurrent with data collection. DISCUSSION: Our study will allow us to identify how the work of coordinating care across multiple settings is accomplished, in practice as well as discursively and textually. Ultimately, we will identify links between everyday experience of care for patients with chronic pain, and broader discourses related to health care system inefficiencies, integration and patient-centred care. An expected outcome of this study will be the development of new, or augmentation of existing, models of care, that are based in the local realities of primary care practice.


Assuntos
Dor Crônica/terapia , Medicina de Família e Comunidade , Osteoartrite/terapia , Manejo da Dor , Médicos de Atenção Primária , Antropologia Cultural , Dor Crônica/etiologia , Humanos , Entrevistas como Assunto , Osteoartrite/complicações , Assistência Centrada no Paciente , Atenção Primária à Saúde , Pesquisa Qualitativa , Projetos de Pesquisa
16.
Int J Clin Oncol ; 19(3): 460-6, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-23780727

RESUMO

BACKGROUND: For DCIS patients eligible for breast conservation treatment (BCT), it remains unclear whether presenting with physical signs/symptoms (Phys) confers a worse long-term prognosis compared to mammographically detected DCIS (Mam). METHODS: We collected data on 669 DCIS patients treated with BCT from 1974 to 2007 of whom 80 were identified as category "Phys" and 589 were in category "Mam." RESULTS: Treatment parameters (i.e., the RT dose delivered, boost, rates of stereotactic biopsy, re-excision, node dissection) did not differ significantly between the two cohorts (p = NS). At a 60-month median follow-up, significant associations included younger age at presentation (p < 0.001), non-white race (p = 0.041), larger tumor size (p = 0.002), more 1°/2° papillary histology (1°, p = 0.001; 2°, p = 0.005) for the Phys cohort. As expected, mammograms were more likely to show mass/nodules/asymmetrical densities and less likely to show microcalcifications for the Phys versus Mam group (p < 0.0001). There were no differences in family history, multifocality, grade, necrosis, or residual disease at re-excision, nodal involvement, status of margins, or ER/PR/HER-2 between the cohorts. The local relapse-free survival was similar at 5 years (100 vs. 96.9 %, p = 0.116) and 10 years (96.2 vs. 96.2 %, p = 0.906), with no significant overall survival difference at 10 years (97.5 vs. 95.9 %, p = 0.364) between the Phys and Mam patients, respectively. On multivariate analysis, presentation was not an independent predictor of local relapse-free survival or overall survival when accounting for age, race, tumor size, mammogram appearance, and adjuvant hormone treatment. CONCLUSIONS: Our findings suggest that although some clinicopathological differences exist between DCIS patients presenting with physical signs/symptoms compared with those presenting with mammographically detected disease, long-term outcomes are similar for patients appropriately selected for BCT.


Assuntos
Neoplasias da Mama/cirurgia , Carcinoma Intraductal não Infiltrante/cirurgia , Mastectomia Segmentar , Adulto , Neoplasias da Mama/diagnóstico por imagem , Neoplasias da Mama/mortalidade , Neoplasias da Mama/patologia , Carcinoma Intraductal não Infiltrante/diagnóstico por imagem , Carcinoma Intraductal não Infiltrante/mortalidade , Carcinoma Intraductal não Infiltrante/patologia , Estudos de Coortes , Intervalo Livre de Doença , Feminino , Humanos , Mamografia , Pessoa de Meia-Idade , Recidiva Local de Neoplasia , Resultado do Tratamento
17.
BMJ Open Sport Exerc Med ; 10(2): e001974, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38974095

RESUMO

Objectives: Gaelic football requires ball handling, such as bouncing, fist passing and catching. To date, no research has examined the types of injuries sustained to the hand in this sport. This study aims to establish the types of orthopaedic hand injuries sustained in Gaelic football. Methods: This was a retrospective descriptive epidemiology study of Gaelic football-related hand injuries treated at a hand therapy unit. The nature of injuries was categorised along with collated variables on player demographics and injury profiles. Potential correlations between injury and continuous demographic data were analysed using the Mann-Whitney U and Kruskal-Wallis tests. Pearson's χ2 test was used for categorical data (p<0.05). Results: 287 referrals were identified. Most players were men (n=189; 65.9%), and the average age was 17 (IQR 14-25). Most fractures were to the volar base of the middle phalanx (n=110; 42.8%). Significant differences were found between the age of male and female players with fractures under 18 (p<0.05), the distribution of left and right-hand fractures by age (p<0.05), the distribution of fractures by bone type (p<0.05) and also between sex and affected ray (p<0.05), bone type (p<0.05) and mechanism of injury (p=0.05). Conclusion: This study established the types of musculoskeletal hand injuries sustained by players in Gaelic football. Considering developmental, anthropometric and rule differences between male and female players across the age range may explain variations in injuries. This data can help devise injury prevention and management strategies for Gaelic football.

18.
Int J Radiat Oncol Biol Phys ; 119(1): 292-301, 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38072322

RESUMO

PURPOSE: Electron paramagnetic resonance (EPR) biodosimetry, used to triage large numbers of individuals incidentally exposed to unknown doses of ionizing radiation, is based on detecting a stable physical response in the body that is subject to quantifiable variation after exposure. In vivo measurement is essential to fully characterize the radiation response relevant to a living tooth measured in situ. The purpose of this study was to verify EPR spectroscopy in vivo by estimating the radiation dose received in participants' teeth. METHODS AND MATERIALS: A continuous wave L-band spectrometer was used for EPR measurements. Participants included healthy volunteers and patients undergoing head and neck and total body irradiation treatments. Healthy volunteers completed 1 measurement each, and patients underwent measurement before starting treatment and between subsequent fractions. Optically stimulated luminescent dosimeters and diodes were used to determine the dose delivered to the teeth to validate EPR measurements. RESULTS: Seventy measurements were acquired from 4 total body irradiation and 6 head and neck patients over 15 months. Patient data showed a linear increase of EPR signal with delivered dose across the dose range tested. A linear least-squares weighted fit of the data gave a statistically significant correlation between EPR signal and absorbed dose (P < .0001). The standard error of inverse prediction (SEIP), used to assess the usefulness of fits, was 1.92 Gy for the dose range most relevant for immediate triage (≤7 Gy). Correcting for natural background radiation based on patient age reduced the SEIP to 1.51 Gy. CONCLUSIONS: This study demonstrated the feasibility of using spectroscopic measurements from radiation therapy patients to validate in vivo EPR biodosimetry. The data illustrated a statistically significant correlation between the magnitude of EPR signals and absorbed dose. The SEIP of 1.51 Gy, obtained under clinical conditions, indicates the potential value of this technique in response to large radiation events.


Assuntos
Dente , Humanos , Espectroscopia de Ressonância de Spin Eletrônica/métodos , Dente/química , Dente/efeitos da radiação , Irradiação Corporal Total , Radiometria/métodos , Doses de Radiação
19.
AJR Am J Roentgenol ; 201(4): 787-94, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-24059367

RESUMO

OBJECTIVE: Cathartic bowel preparation is a major barrier for colorectal cancer screening. We examined noncathartic CT colonography (CTC) quality and performance using four similar bowel-tagging regimens in an asymptomatic screening cohort. SUBJECTS AND METHODS: This prospective study included 564 asymptomatic subjects who underwent noncathartic CTC without dietary modification but with 21 g of barium with or without iodinated oral contrast material (four regimens). The quality of tagging with oral agents was evaluated. A gastrointestinal radiologist evaluated examinations using primary 2D search supplemented by electronic cleansing (EC) and 3D problem solving. Results were compared with complete colonoscopy findings after bowel purgation and with retrospective unblinded evaluation in 556 of the 564 (99%) subjects. RESULTS: Of the 556 subjects, 7% (37/556) and 3% (16/556) of patients had 52 and 20 adenomatous polyps ≥ 6 and ≥ 10 mm, respectively. The addition of iodine significantly improved the percentage of labeled stool (p ≤ 0.0002) and specificity (80% vs 89-93%, respectively; p = 0.046). The overall sensitivity of noncathartic CTC for adenomatous polyps ≥ 6 mm was 76% (28/37; 95% CI, 59-88%), which is similar to the sensitivity of the iodinated regimens with most patients (sensitivity: 231 patients, 74% [14/19; 95% CI, 49-91%]; 229 patients, 80% [12/15; 95% CI, 52-96%]). The negative predictive value was 98% (481/490), and the lone cancer was detected (0.2%, 1/556). EC was thought to improve conspicuity of 10 of 21 visible polyps ≥ 10 mm. CONCLUSION: In this prospective study of asymptomatic subjects, the per-patient sensitivity of noncathartic CTC for detecting adenomas ≥ 6 mm was approximately 76%. Inclusion of oral iodine contrast material improves examination specificity and the percentage of labeled stool. EC may improve polyp conspicuity.


Assuntos
Sulfato de Bário , Pólipos do Colo/diagnóstico por imagem , Pólipos do Colo/epidemiologia , Colonografia Tomográfica Computadorizada/estatística & dados numéricos , Interpretação de Imagem Assistida por Computador/métodos , Programas de Rastreamento/estatística & dados numéricos , Adulto , Idoso , Catárticos , Estudos de Coortes , Meios de Contraste , Enema , Feminino , Humanos , Aumento da Imagem/métodos , Masculino , Pessoa de Meia-Idade , Prevalência , Reprodutibilidade dos Testes , Medição de Risco , Sensibilidade e Especificidade , Estados Unidos/epidemiologia
20.
J Am Acad Dermatol ; 69(4): 537-43, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23849563

RESUMO

BACKGROUND: Detailed rates of acute toxicity and skin infection during total skin electron beam therapy (TSEBT) for mycosis fungoides have not been reported in a large, modern series. OBJECTIVE: We sought to demonstrate the rates of acute toxicity and skin infection during TSEBT. METHODS: We retrospectively reviewed 89 consecutive courses of TSEBT. In all, 82 courses were prescribed a dose of 30 to 36 Gy and were included in the toxicity analysis. We recorded the types and grades of acute treatment toxicities and the incidence of infection during TSEBT for comparison with the previously documented baseline incidence of infection in mycosis fungoides. RESULTS: The most common toxicities included erythema/desquamation (76%), blisters (52%), hyperpigmentation (50%), and skin pain (48%). The worst reported toxicity grade per patient was grade 1 in 21%, grade 2 in 67%, and grade 3 in 10%, with no grade 4 or 5 toxicities. According to the previously reported rate, a total of 2.4 infections were expected for our cohort at baseline. The number with skin infection was 26 (32%) (relative risk 10.8, P < .01), and of these, 12 (15%) were culture confirmed (relative risk 5.0, P < .01). LIMITATIONS: This was a retrospective study design. CONCLUSION: The risk of cutaneous infection is significant during TSEBT.


Assuntos
Dermatomicoses/etiologia , Micose Fungoide/radioterapia , Radiodermite/epidemiologia , Dermatopatias Bacterianas/etiologia , Neoplasias Cutâneas/radioterapia , Irradiação Corporal Total/efeitos adversos , Doença Aguda , Adulto , Fatores Etários , Idoso , Análise de Variância , Estudos de Coortes , Dermatomicoses/epidemiologia , Dermatomicoses/fisiopatologia , Fracionamento da Dose de Radiação , Relação Dose-Resposta à Radiação , Elétrons , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Micose Fungoide/mortalidade , Micose Fungoide/patologia , Invasividade Neoplásica/patologia , Estadiamento de Neoplasias , Prognóstico , Radiodermite/diagnóstico , Dosagem Radioterapêutica , Estudos Retrospectivos , Medição de Risco , Índice de Gravidade de Doença , Fatores Sexuais , Dermatopatias Bacterianas/epidemiologia , Dermatopatias Bacterianas/fisiopatologia , Neoplasias Cutâneas/mortalidade , Neoplasias Cutâneas/patologia
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