Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 56
Filtrar
1.
Ir J Med Sci ; 192(2): 575-589, 2023 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-35616834

RESUMEN

BACKGROUND: Improvements in early detection, screening and treatment of cancer have resulted in a significant improvement in cancer mortality and an increase in the number of cancer survivors globally. Accordingly, a significant rise in the number of cancer survivors in Ireland has been observed. The surveillance of survivors of gastrointestinal malignancies in Ireland is heterogeneous and represents an unmet need for standardisation. AIMS: There are currently no national guidelines in Ireland to guide follow-up practices for these patients. The aim of this study was to establish homogeneity nationally with respect to follow-up of these patients by medical oncologists. METHODS/RESULTS: A consensus group consisting of Irish oncologists with an interest in gastrointestinal malignancies was created to address this issue, and determined that it would be reasonable to adopt the NCCN guidelines for this purpose, but that this recommendation would not be prescriptive, and should be individualised to each patient. CONCLUSION: We hope that this initiative may help to homogenise survivorship practices in this cohort of Irish patients, and may support the implementation of survivorship initiatives by the National Cancer Control Programme (NCCP).


Asunto(s)
Supervivientes de Cáncer , Neoplasias Gastrointestinales , Humanos , Sobrevivientes , Neoplasias Gastrointestinales/diagnóstico , Neoplasias Gastrointestinales/terapia , Irlanda
2.
J Rheumatol ; 50(3): 390-399, 2023 03.
Artículo en Inglés | MEDLINE | ID: mdl-36243417

RESUMEN

OBJECTIVE: To develop Canadian recommendations for the screening, monitoring, and treatment of uveitis associated with juvenile idiopathic arthritis (JIA). METHODS: Recommendations were developed using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE)-ADOLOPMENT approach. A working group of 14 pediatric rheumatologists, 6 ophthalmologists, 2 methodologists, and 3 caregiver/patient representatives reviewed recent American College of Rheumatology (ACR)/Arthritis Foundation (AF) recommendations and worked in pairs to develop evidence-to-decision (EtD) tables. A survey to assess agreement and recommendations requiring group discussion was completed. EtD tables were presented, discussed, and voted upon at a virtual meeting, to produce the final recommendations. A health equity framework was applied to all aspects of the adolopment process including the EtD tables, survey responses, and virtual meeting discussion. RESULTS: The survey identified that 7 of the 19 recommendations required rigorous discussion. Seventy-five percent of working group members attended the virtual meeting to discuss controversial topics as they pertained to the Canadian environment, including timing to first eye exam, frequency of screening, escalation criteria for systemic and biologic therapy, and the role of nonbiologic therapies. Equity issues related to access to care and advanced therapeutics across Canadian provinces and territories were highlighted. Following the virtual meeting, 5 recommendations were adapted, 2 recommendations were removed, and 1 was developed de novo. CONCLUSION: Recommendations for JIA-associated uveitis were adapted to the Canadian context by a working group of pediatric rheumatologists, ophthalmologists with expertise in the management of uveitis, and parent/patient input, taking into consideration cost, equity, and access.


Asunto(s)
Artritis Juvenil , Reumatología , Uveítis , Niño , Humanos , Artritis Juvenil/diagnóstico , Canadá , Uveítis/complicaciones
3.
Med Educ ; 57(4): 337-348, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-36181382

RESUMEN

BACKGROUND/PURPOSE: Despite widespread use of Electronic Health Records (EHR), the promise of benefits has not been clearly realised due, in part, to inadequate physician training. Training for EHR use is a highly complex intervention that occurs in a dynamic socio-technical health system. The purpose of this study was to describe and critically assess the interplay between educational activities and organisational factors that influenced EHR training and implementation across two different hospitals. METHODS: Based in a socio-technical framework, a comparative qualitative case study was undertaken as well suited to real-world processes. Semi-structured interviews were completed (n = 43), representing administrative leaders, staff physicians, residents and EHR trainers from two Canadian academic hospitals. Thematic analysis was employed for analysis. RESULTS: Similar findings were noted at both hospitals despite different implementation strategies. Despite mandatory training, physicians described limited transferability of training to the workplace. Factors contributing to this included standardised vendor modules (lacking specificity for their clinical context); variable EHR trainer expertise; limited post-launch training; and insufficient preparation for changes to workflow. They described learning while caring for patients and using workarounds. Strong emotional responses were described, including anger, frustration, anxiety and fear of harming patients. CONCLUSIONS: Training physicians for effective EHR utilisation requires organisational culture transformation as EHRs impacts all aspects of clinical workflows. Analytic thinking to consider workflows, ongoing post-launch training and the recognition of the interdependency of multiple factors are critical to preparing physicians to provide effective clinical care, and potentially reducing burnout. A list of key considerations is provided for educational leaders.


Asunto(s)
Registros Electrónicos de Salud , Médicos , Humanos , Canadá , Médicos/psicología , Hospitales , Escolaridad
4.
J Clin Endocrinol Metab ; 106(12): e5195-e5207, 2021 11 19.
Artículo en Inglés | MEDLINE | ID: mdl-34232311

RESUMEN

CONTEXT: Osteoporotic fractures are an important cause of morbidity in children with glucocorticoid-treated rheumatic disorders. OBJECTIVE: This work aims to evaluate the incidence and predictors of osteoporotic fractures and potential for recovery over six years following glucocorticoid (GC) initiation in children with rheumatic disorders. METHODS: Children with GC-treated rheumatic disorders were evaluated through a prospective inception cohort study led by the Canadian STeroid-induced Osteoporosis in the Pediatric Population (STOPP) Consortium. Clinical outcomes included lumbar spine bone mineral density (LS BMD), vertebral fractures (VF), non-VF, and vertebral body reshaping. RESULTS: A total of 136 children with GC-treated rheumatic disorders were enrolled (mean age 9.9 years, SD 4.4). The 6-year cumulative fracture incidence was 16.3% for VF, and 10.1% for non-VF. GC exposure was highest in the first 6 months, and 24 of 38 VF (63%) occurred in the first 2 years. Following VF, 16 of 19 children (84%) had complete vertebral body reshaping. Increases in disease activity and body mass index z scores in the first year and declines in LS BMD z scores in the first 6 months predicted incident VF over the 6 years, while higher average daily GC doses predicted both incident VF and non-VF. LS BMD z scores were lowest at 6 months (mean -0.9, SD 1.2) and remained low by 6 years even when adjusted for height z scores (-0.6, SD 0.9). CONCLUSION: VF occurred early and were more common than non-VF in children with GC-treated rheumatic disorders. Eighty-four percent of children with VF underwent complete vertebral body reshaping, whereas vertebral deformity persisted in the remainder of children. On average, LS BMD z scores remained low at 6 years, consistent with incomplete recovery.


Asunto(s)
Densidad Ósea , Glucocorticoides/efectos adversos , Osteoporosis/epidemiología , Fracturas Osteoporóticas/epidemiología , Enfermedades Reumáticas/tratamiento farmacológico , Fracturas de la Columna Vertebral/epidemiología , Cuerpo Vertebral/fisiopatología , Adolescente , Canadá/epidemiología , Niño , Preescolar , Femenino , Estudios de Seguimiento , Humanos , Incidencia , Lactante , Recién Nacido , Estudios Longitudinales , Masculino , Osteoporosis/inducido químicamente , Osteoporosis/patología , Fracturas Osteoporóticas/inducido químicamente , Fracturas Osteoporóticas/patología , Pronóstico , Estudios Prospectivos , Enfermedades Reumáticas/patología , Factores de Riesgo , Fracturas de la Columna Vertebral/inducido químicamente , Fracturas de la Columna Vertebral/patología
5.
Nutr Res ; 92: 139-149, 2021 08.
Artículo en Inglés | MEDLINE | ID: mdl-34311227

RESUMEN

A number of studies have demonstrated that patients with autoimmune disease have lower levels of vitamin D prompting speculation that vitamin D might suppress inflammation and immune responses in children with juvenile idiopathic arthritis (JIA).  The objective of this study was to compare vitamin D levels in children with JIA at disease onset with healthy children. We hypothesized that children and adolescents with JIA have lower vitamin D levels than healthy children and adolescents. Data from a Canadian cohort of children with new-onset JIA (n= 164, data collection 2007-2012) were compared to Canadian Health Measures Survey (CHMS) data (n=4027, data collection 2007-2011). We compared 25-hydroxy vitamin D (25(OH)D) concentrations with measures of inflammation, vitamin D supplement use, milk intake, and season of birth. Mean 25(OH)D level was significantly higher in patients with JIA (79 ± 3.1 nmol/L) than in healthy controls (68 ± 1.8 nmol/L P <.05). Patients with JIA more often used vitamin D containing supplements (50% vs. 7%; P <.05). The prevalence of 25(OH)D deficiency (<30 nmol/L) was 6% for both groups. Children with JIA with 25(OH)D deficiency or insufficiency (<50 nmol/L) had higher C-reactive protein levels. Children with JIA were more often born in the fall and winter compared to healthy children. In contrast to earlier studies, we found vitamin D levels in Canadian children with JIA were higher compared to healthy children and associated with more frequent use of vitamin D supplements. Among children with JIA, low vitamin D levels were associated with indicators of greater inflammation.


Asunto(s)
Artritis Juvenil/sangre , Suplementos Dietéticos , Inflamación , Parto , Estaciones del Año , Deficiencia de Vitamina D/sangre , Vitamina D/sangre , Animales , Artritis Juvenil/complicaciones , Artritis Juvenil/inmunología , Enfermedades Autoinmunes , Proteína C-Reactiva/metabolismo , Canadá/epidemiología , Estudios de Casos y Controles , Niño , Preescolar , Estudios de Cohortes , Femenino , Humanos , Recién Nacido , Inflamación/etiología , Inflamación/metabolismo , Masculino , Leche , Vitamina D/análogos & derivados , Vitamina D/uso terapéutico , Deficiencia de Vitamina D/complicaciones , Deficiencia de Vitamina D/tratamiento farmacológico , Deficiencia de Vitamina D/inmunología
6.
Breast Cancer Res Treat ; 189(1): 269-283, 2021 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-34125341

RESUMEN

PURPOSE: Pregnancy-associated breast cancer (PABC) is defined as breast cancer diagnosed during the gestational period (gp-PABC) or in the first postpartum year (pp-PABC). Despite its infrequent occurrence, the incidence of PABC appears to be rising due to the increasing propensity for women to delay childbirth. We have established the first retrospective registry study of PABC in Ireland to examine specific clinicopathological characteristics, treatments, and maternal and foetal outcomes. METHODS: This was a national, multi-site, retrospective observational study, including PABC patients treated in 12 oncology institutions from August 2001 to January 2020. Data extracted included information on patient demographics, tumour biology, staging, treatments, and maternal/foetal outcomes. Survival data for an age-matched breast cancer population over a similar time period was obtained from the National Cancer Registry of Ireland (NCRI). Standard biostatistical methods were used for analyses. RESULTS: We identified 155 patients-71 (46%) were gp-PABC and 84 (54%) were pp-PABC. The median age was 36 years. Forty-four patients (28%) presented with Stage III disease and 25 (16%) had metastatic disease at diagnosis. High rates of triple-negative (25%) and HER2+ (30%) breast cancer were observed. We observed an inferior 5-year overall survival (OS) rate in our PABC cohort compared to an age-matched breast cancer population in both Stage I-III (77.6% vs 90.9%) and Stage IV disease (18% vs 38.3%). There was a low rate (3%) of foetal complications. CONCLUSION: PABC patients may have poorer survival outcomes. Further prospective data are needed to optimise management of these patients.


Asunto(s)
Neoplasias de la Mama , Complicaciones Neoplásicas del Embarazo , Adulto , Neoplasias de la Mama/epidemiología , Neoplasias de la Mama/terapia , Femenino , Humanos , Irlanda/epidemiología , Periodo Posparto , Embarazo , Complicaciones Neoplásicas del Embarazo/epidemiología , Complicaciones Neoplásicas del Embarazo/terapia , Estudios Retrospectivos
7.
Pediatr Rheumatol Online J ; 19(1): 83, 2021 Jun 05.
Artículo en Inglés | MEDLINE | ID: mdl-34090474

RESUMEN

BACKGROUND: Current evidence suggests that many adolescents with juvenile idiopathic arthritis (JIA) do not successfully transfer to adult care, which can result in adverse health outcomes. Although a growing number of clinical programs have been designed to support healthcare transition, there is a lack of psychometrically sound instruments to evaluate their impact on development of transition-related knowledge and skills in youth with JIA. The purpose of this study was to develop and validate RACER (Readiness for Adult Care in Rheumatology), a self-administered instrument designed to measure stages of readiness for key transition-related skills in adolescents with JIA. METHODS: A phased approach was used to develop and evaluate the validity and reliability of RACER. Phase 1 A was a consensus conference with 19 key stakeholders to inform instrument domains and items. Phase 1B determined initial content validity using a sample of 30 adolescents with JIA and 15 clinical and research experts. Finally, Phase 2 was a prospective cohort study with repeated measures to evaluate the internal consistency, test-retest reliability, construct validity and responsiveness of the instrument within a sample of adolescents with JIA. RESULTS: In Phase 1 A, initial item generation yielded a total of 242 items across six domains from the consensus conference, which was subsequently reduced to a 32-item instrument. Phase 1B established the content validity of the instrument in adolescents with JIA. In the Phase 2 study, with a sample of 96 adolescents, the RACER instrument exhibited good internal consistency in five of its six subscales (Cronbach's α > 0.7), and strong test-retest reliability between the first two administrations (ICC = 0.83). It also showed robust convergent validity by highly correlating with measures of self-management (SMSAG, rho = 0.73) and transition (TRANSITION-Q, rho = 0.76). The RACER was not correlated with unrelated measures (discriminant validity; PedsQL, rho = 0.14). The RACER scores increased significantly over time as expected, supporting measure responsiveness. CONCLUSIONS: The RACER is a reliable and valid instrument which is sensitive to change for assessing transition readiness in adolescents with JIA.


Asunto(s)
Artritis Juvenil/terapia , Autoinforme , Transición a la Atención de Adultos , Adolescente , Femenino , Humanos , Masculino , Estudios Prospectivos , Reumatología , Adulto Joven
8.
Pediatr Rheumatol Online J ; 19(1): 97, 2021 Jun 29.
Artículo en Inglés | MEDLINE | ID: mdl-34187498

RESUMEN

BACKGROUND: Physical activity (PA) patterns in children with juvenile idiopathic arthritis (JIA) over time are not well described. The aim of this study was to describe associations of physical activity (PA) with disease activity, function, pain, and psychosocial stress in the 2 years following diagnosis in an inception cohort of children with juvenile idiopathic arthritis (JIA). METHODS: In 82 children with newly diagnosed JIA, PA levels, prospectively determined at enrollment, 12 and 24 months using the Physical Activity Questionnaire for Children (PAQ-C) and Adolescents (PAQ-A) raw scores, were evaluated in relation to disease activity as reflected by arthritis activity (Juvenile Arthritis Disease Activity Score (JADAS-71)), function, pain, and psychosocial stresses using a linear mixed model approach. Results in the JIA cohort were compared to normative Pediatric Bone Mineral Accrual Study data derived from healthy children using z-scores. RESULTS: At enrollment, PA z-score levels of study participants were lower than those in the normative population (median z-score - 0.356; p = 0.005). At enrollment, PA raw scores were negatively associated with the psychosocial domain of the Juvenile Arthritis Quality of Life Questionnaire (r = - 0.251; p = 0.023). There was a significant decline in PAQ-C/A raw scores from baseline (median and IQR: 2.6, 1.4-3.1) to 24 months (median and IQR: 2.1, 1.4-2.7; p = 0.003). The linear mixed-effect model showed that PAQ-C/A raw scores in children with JIA decreased as age, disease duration, and ESR increased. The PAQ-C/A raw scores of the participants was also negatively influenced by an increase in disease activity as measured by the JADAS-71 (p <  0.001). CONCLUSION: Canadian children with newly diagnosed JIA have lower PA levels than healthy children. The decline in PA levels over time was associated with disease activity and higher disease-specific psychosocial stress.


Asunto(s)
Artritis Juvenil/complicaciones , Artritis Juvenil/psicología , Ejercicio Físico , Estrés Psicológico/etiología , Adolescente , Niño , Estudios de Cohortes , Femenino , Humanos , Estudios Longitudinales , Masculino , Factores de Tiempo
9.
J Rheumatol ; 48(5): 760-766, 2021 05.
Artículo en Inglés | MEDLINE | ID: mdl-33060303

RESUMEN

OBJECTIVES: This study aimed to expand knowledge about soluble low-density lipoprotein receptor-related protein 1 (sLRP1) in juvenile idiopathic arthritis (JIA) by determining associations of sLRP1 levels in nonsystemic JIA patients with clinical and inflammatory biomarker indicators of disease activity. METHODS: Plasma sLRP1 and 44 inflammation-related biomarkers were measured at enrollment and 6 months later in a cohort of 96 newly diagnosed Canadian patients with nonsystemic JIA. Relationships between sLRP1 levels and indicators of disease activity and biomarker levels were analyzed at both visits. RESULTS: At enrollment, sLRP1 levels correlated negatively with age and active joint counts. Children showed significantly higher levels of sLRP1 than adolescents (mean ranks: 55.4 and 41.9, respectively; P = 0.02). Participants with 4 or fewer active joints, compared to those with 5 or more active joints, had significantly higher sLRP1 levels (mean ranks: 56.2 and 40.7, respectively; P = 0.006). At enrollment, considering the entire cohort, sLRP1 correlated negatively with the number of active joints (r = -0.235, P = 0.017). In the entire cohort, sLRP1 levels at enrollment and 6 months later correlated with 13 and 6 pro- and antiinflammatory biomarkers, respectively. In JIA categories, sLRP1 correlations with inflammatory markers were significant in rheumatoid factor-negative polyarticular JIA, oligoarticular JIA, enthesitis-related arthritis, and psoriatic arthritis at enrollment. Higher sLRP1 levels at enrollment increased the likelihood of absence of active joints 6 months later. CONCLUSION: Plasma sLRP1 levels correlate with clinical and biomarker indicators of short-term improvement in JIA disease activity, supporting sLRP1 as an upstream biomarker of potential utility for assessing JIA disease activity and outcome prediction.


Asunto(s)
Artritis Juvenil , Artritis Psoriásica , Adolescente , Artritis Juvenil/diagnóstico , Canadá , Niño , Humanos , Lipoproteínas LDL , Proteína 1 Relacionada con Receptor de Lipoproteína de Baja Densidad
10.
BMC Biol ; 18(1): 112, 2020 09 02.
Artículo en Inglés | MEDLINE | ID: mdl-32878624

RESUMEN

Modified nucleic acids, also called xeno nucleic acids (XNAs), offer a variety of advantages for biotechnological applications and address some of the limitations of first-generation nucleic acid therapeutics. Indeed, several therapeutics based on modified nucleic acids have recently been approved and many more are under clinical evaluation. XNAs can provide increased biostability and furthermore are now increasingly amenable to in vitro evolution, accelerating lead discovery. Here, we review the most recent discoveries in this dynamic field with a focus on progress in the enzymatic replication and functional exploration of XNAs.


Asunto(s)
Replicación del ADN , Evolución Molecular , Ácidos Nucleicos/química , Ácidos Nucleicos/uso terapéutico , ADN/química , ADN/uso terapéutico , ARN/química , ARN/uso terapéutico
11.
Cancers (Basel) ; 12(7)2020 Jul 16.
Artículo en Inglés | MEDLINE | ID: mdl-32708702

RESUMEN

Cancer clinical trials (CCTs) are critical to translation and development of better therapies to improve outcomes. CCTs require adequate patient involvement but accrual rates are low globally. Several known barriers impede participation and knowing how subpopulations differ in understanding of CCTs can foster targeted approaches to aid accrual and advance cancer treatments. We conducted the first nationwide survey of 1089 patients attending 14 Irish cancer centres, assessing understanding of fundamental concepts in CCT methodology and factors that influence participation, to help tailor patient support for accrual to CCTs. Two-thirds (66%) of patients reported never having been offered a CCT and only 5% of those not offered asked to participate. Misunderstanding of clinical equipoise was prevalent. There were differences in understanding of randomisation of treatment by age (p < 0.0001), ethnicity (p = 0.035) and marital status (p = 0.013), and 58% of patients and 61% previous CCT participants thought that their doctor would ensure better treatment in CCTs. Females were slightly more risk averse. Males indicated a greater willingness to participate in novel drug trials (p = 0.001, p = 0.003). The study identified disparities in several demographics; older, widowed, living in provincial small towns and fewer years-educated patients had generally poorer understanding of CCTs, highlighting requirements for targeted support in these groups.

12.
Br J Clin Pharmacol ; 86(12): 2507-2518, 2020 12.
Artículo en Inglés | MEDLINE | ID: mdl-32415720

RESUMEN

AIMS: To assess safety, tolerability, pharmacokinetics (PK), pharmacodynamics (PD) and immunogenicity of CNTO 7160, an anti-interleukin-33 receptor (IL-33R) monoclonal antibody, in healthy subjects and patients with asthma or atopic dermatitis (AD). METHODS: In Part 1 of this Phase I, randomized, double-blind, placebo-controlled study, healthy subjects (n = 68) received single ascending intravenous (IV) CNTO 7160 dose (0.001 to 10 mg/kg) or placebo. In Part 2, patients with mild asthma (n = 24) or mild AD (n = 15) received 3 biweekly IV CNTO 7160 doses (3 or 10 mg/kg) or placebo. RESULTS: CNTO 7160 was generally well tolerated, with 1 serious adverse event of severe cellulitis reported (AD, CNTO 7160, 3 mg/kg). CNTO 7160 exhibited nonlinear PK (0.01-10 mg/kg). Mean clearance decreased with increasing dose (2.43 to 18.03 mL/d/kg). CNTO 7160 PK was similar between healthy subjects and patients with asthma or AD (3 or 10 mg/kg). Free sIL-33R suppression was rapid and dose dependent. Ex vivo inhibition of p38 phosphorylation of basophils was dose-dependent (1-10 mg/kg) and sustained inhibition (≥75%) was observed at higher doses (3 or 10 mg/kg). PK/PD modelling and simulation suggests that 1 mg/kg IV every 2 weeks provides adequate systemic drug exposure for sustained inhibition of p38 phosphorylation of basophils. Despite confirmation of target engagement, no apparent CNTO 7160 clinical activity was observed in patients (asthma or AD). CONCLUSION: This first-in-human study provides PK, PD and safety data, supporting further clinical investigation of CNTO 7160 in patients with asthma and AD.


Asunto(s)
Anticuerpos Monoclonales , Asma , Dermatitis Atópica , Proteína 1 Similar al Receptor de Interleucina-1 , Anticuerpos Monoclonales/uso terapéutico , Asma/tratamiento farmacológico , Dermatitis Atópica/tratamiento farmacológico , Relación Dosis-Respuesta a Droga , Método Doble Ciego , Voluntarios Sanos , Humanos
13.
Rheumatology (Oxford) ; 59(5): 1066-1075, 2020 05 01.
Artículo en Inglés | MEDLINE | ID: mdl-32321162

RESUMEN

OBJECTIVE: To identify discrete clusters comprising clinical features and inflammatory biomarkers in children with JIA and to determine cluster alignment with JIA categories. METHODS: A Canadian prospective inception cohort comprising 150 children with JIA was evaluated at baseline (visit 1) and after six months (visit 2). Data included clinical manifestations and inflammation-related biomarkers. Probabilistic principal component analysis identified sets of composite variables, or principal components, from 191 original variables. To discern new clinical-biomarker clusters (clusters), Gaussian mixture models were fit to the data. Newly-defined clusters and JIA categories were compared. Agreement between the two was assessed using Kruskal-Wallis analyses and contingency plots. RESULTS: Three principal components recovered 35% (three clusters) and 40% (five clusters) of the variance in patient profiles in visits 1 and 2, respectively. None of the clusters aligned precisely with any of the seven JIA categories but rather spanned multiple categories. Results demonstrated that the newly defined clinical-biomarker lustres are more homogeneous than JIA categories. CONCLUSION: Applying unsupervised data mining to clinical and inflammatory biomarker data discerns discrete clusters that intersect multiple JIA categories. Results suggest that certain groups of patients within different JIA categories are more aligned pathobiologically than their separate clinical categorizations suggest. Applying data mining analyses to complex datasets can generate insights into JIA pathogenesis and could contribute to biologically based refinements in JIA classification.


Asunto(s)
Artritis Juvenil/sangre , Artritis Juvenil/fisiopatología , Mediadores de Inflamación/sangre , Adolescente , Factores de Edad , Artritis Juvenil/epidemiología , Biomarcadores/sangre , Canadá/epidemiología , Niño , Análisis por Conglomerados , Estudios de Cohortes , Minería de Datos , Femenino , Humanos , Incidencia , Masculino , Distribución Normal , Estudios Prospectivos , Medición de Riesgo , Índice de Severidad de la Enfermedad , Factores Sexuales , Síndrome
14.
ACR Open Rheumatol ; 2(3): 138-146, 2020 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-31997575

RESUMEN

OBJECTIVE: To identify barriers and facilitators to the uptake of information from research by parents of children with juvenile idiopathic arthritis (JIA). METHODS: Parents of children with JIA participated in focus group and telephone interviews at four Canadian pediatric rheumatology centers. The semistructured interviews focused on perceptions about JIA research, how new information about JIA was obtained and used, and what information was of most interest. Transcripts were analyzed using a general inductive approach. RESULTS: Twenty-eight parents participated in the study. Parents were very interested in research that addresses the outcomes of JIA and side effects of medications. Parents communicated an expectation that information from research be communicated to them by their child's pediatric rheumatologist as part of clinical care. Parents felt that it would be helpful to have information available to them in a variety of formats including written, video, and online. The timing of information delivery is an important factor, with parents being most interested and engaged in learning about new information about JIA at diagnosis and disease flares. We found that parents were overall unaware of new findings from JIA research and therefore may not be optimally utilizing this potentially helpful information in the care of their children. CONCLUSION: This study has led to an understanding of Canadian parents' perceptions about research and existing gaps in the translation of research knowledge. This information will facilitate the development, implementation, and evaluation of future knowledge translation interventions aimed at improving the uptake of research information in the care of children with JIA.

15.
Rheumatology (Oxford) ; 59(9): 2402-2411, 2020 09 01.
Artículo en Inglés | MEDLINE | ID: mdl-31919503

RESUMEN

OBJECTIVE: To identify early predictors of disease activity at 18 months in JIA using clinical and biomarker profiling. METHODS: Clinical and biomarker data were collected at JIA diagnosis in a prospective longitudinal inception cohort of 82 children with non-systemic JIA, and their ability to predict an active joint count of 0, a physician global assessment of disease activity of ≤1 cm, and inactive disease by Wallace 2004 criteria 18 months later was assessed. Correlation-based feature selection and ReliefF were used to shortlist predictors and random forest models were trained to predict outcomes. RESULTS: From the original 112 features, 13 effectively predicted 18-month outcomes. They included age, number of active/effused joints, wrist, ankle and/or knee involvement, ESR, ANA positivity and plasma levels of five inflammatory biomarkers (IL-10, IL-17, IL-12p70, soluble low-density lipoprotein receptor-related protein 1 and vitamin D), at enrolment. The clinical plus biomarker panel predicted active joint count = 0, physician global assessment ≤ 1, and inactive disease after 18 months with 0.79, 0.80 and 0.83 accuracy and 0.84, 0.83, 0.88 area under the curve, respectively. Using clinical features alone resulted in 0.75, 0.72 and 0.80 accuracy, and area under the curve values of 0.81, 0.78 and 0.83, respectively. CONCLUSION: A panel of five plasma biomarkers combined with clinical features at the time of diagnosis more accurately predicted short-term disease activity in JIA than clinical characteristics alone. If validated in external cohorts, such a panel may guide more rationally conceived, biologically based, personalized treatment strategies in early JIA.


Asunto(s)
Artritis Juvenil/diagnóstico , Interleucinas/sangre , Proteína 1 Relacionada con Receptor de Lipoproteína de Baja Densidad/sangre , Índice de Severidad de la Enfermedad , Vitamina D/sangre , Adolescente , Articulación del Tobillo/patología , Área Bajo la Curva , Artritis Juvenil/sangre , Artritis Juvenil/patología , Biomarcadores/sangre , Canadá , Niño , Preescolar , Femenino , Humanos , Interleucina-10/sangre , Interleucina-12/sangre , Interleucina-17/sangre , Articulación de la Rodilla/patología , Estudios Longitudinales , Masculino , Valor Predictivo de las Pruebas , Estudios Prospectivos , Articulación de la Muñeca/patología
16.
Arthritis Care Res (Hoboken) ; 72(7): 897-906, 2020 07.
Artículo en Inglés | MEDLINE | ID: mdl-31074591

RESUMEN

OBJECTIVE: Undervaluing the effectiveness of conventional treatments may lead to overtreatment with biologic medications in children with juvenile idiopathic arthritis (JIA). Using data from a nationwide inception cohort and strict methods to control bias, the aim of our study was to estimate the real-world effectiveness of simple JIA treatment strategies recommended in current guidelines. METHODS: Children with JIA who were recruited at 16 Canadian centers from 2005 to 2010 were followed for up to 5 years. For each child, all observed treatment changes over time were assessed by independent physicians using prospectively collected data and published response criteria. Success was defined as attainment of inactive disease or maintenance of this state when stepping down treatment; minimally active disease was deemed acceptable for children with polyarticular JIA. Success rates were calculated for treatments tried ≥25 times, and logistic regression analysis identified features associated with success. RESULTS: A total of 4,429 treatment episodes were observed in 1,352 children. Nonsteroidal antiinflammatory drug (NSAID) monotherapy was attempted 697 times, mostly as initial treatment when <5 joints were involved, with a 54.4% success rate (95% confidence interval [95% CI] 50.3-58.6). NSAIDs plus joint injections had a 64.7% success rate (95% CI 59.8-69.7). Adding methotrexate to NSAIDs and/or joint injections (attempted 566 times) had a 60.5% success rate (95% CI 55.7-65.3). In adjusted analyses, each additional active joint reduced chances of success for treatment with NSAIDs (odds ratio [OR] 0.90 [95% CI 0.85-0.94]) and for methotrexate combinations (OR 0.96 [95% CI 0.94-0.99]). Each additional year after disease onset reduced chances of success for treatment with methotrexate combinations (OR 0.83 [95% CI 0.72-0.95]). CONCLUSION: These real-world effectiveness estimates show that conventional nonbiologic treatment strategies that are recommended in current guidelines are effective in achieving treatment targets in many children with JIA.


Asunto(s)
Artritis Juvenil/tratamiento farmacológico , Antiinflamatorios no Esteroideos/uso terapéutico , Canadá , Niño , Preescolar , Estudios de Cohortes , Femenino , Glucocorticoides/uso terapéutico , Humanos , Inmunosupresores/uso terapéutico , Inyecciones Intraarticulares , Masculino , Metotrexato/uso terapéutico
17.
JMIR Res Protoc ; 8(8): e13214, 2019 Aug 23.
Artículo en Inglés | MEDLINE | ID: mdl-31444876

RESUMEN

BACKGROUND: Cancer survivorship in Ireland is increasing in both frequency and longevity. However, a significant proportion of cancer survivors are overweight. This has negative implications for long-term health outcomes, including increased risk of subsequent and secondary cancers. There is a need to identify interventions, which can improve physical and psychological outcomes that are practical in modern oncology care. Mobile health (mHealth) interventions demonstrate potential for positive health behavior change, but there is little evidence for the efficacy of mobile technology to improve health outcomes in cancer survivors. OBJECTIVE: This study aims to investigate whether a personalized mHealth self-management lifestyle program is acceptable to participants and can improve physical and psychological outcomes of a subgroup of cancer survivors with increased health risks related to lifestyle behaviors. METHODS: A sample of 123 cancer survivors (body mass index >25 kg/m2) was randomly assigned to the control (n=61) or intervention (n=62) group. The intervention group attended a 4-hour tailored lifestyle information session with a physiotherapist, dietician, and clinical psychologist to support self-management of health behavior. Over the following 12 weeks, participants engaged in personalized goal setting to incrementally increase physical activity (with feedback and review of goals through short message service text messaging contact). Objective measures of health behavior (ie, physical activity) were collected using Fitbit (Fitbit, Inc). Data on anthropometric, physiological, dietary behavior, and psychological measures were collected at baseline (T0), 12 weeks (T1; intervention end), and 24 weeks (T2; follow-up). Semistructured interviews were conducted to explore the retrospective acceptability of the Moving On program from the perspective of the recipients. RESULTS: This paper details the protocol for the Moving On study. The project was funded in August 2017. Enrolment started in December 2017. Data collection completed in September 2018. Data analysis is underway, and results are expected in winter 2019. CONCLUSIONS: The results of this study will determine the efficacy and acceptability of an mHealth intervention using behavior change techniques to promote health behaviors that support physical health and well-being in cancer survivors and will therefore have implications for health care providers, patients, health psychologists, and technologists. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/13214.

18.
J Rheumatol ; 46(6): 628-635, 2019 06.
Artículo en Inglés | MEDLINE | ID: mdl-30647178

RESUMEN

OBJECTIVE: To estimate the probability of early remission with conventional treatment for each child with juvenile idiopathic arthritis (JIA). Children with a low chance of remission may be candidates for initial treatment with biologics or triple disease-modifying antirheumatic drugs (DMARD). METHODS: We used data from 1074 subjects in the Research in Arthritis in Canadian Children emphasizing Outcomes (ReACCh-Out) cohort. The predicted outcome was clinically inactive disease for ≥ 6 months starting within 1 year of JIA diagnosis in patients who did not receive early biologic agents or triple DMARD. Models were developed in 200 random splits of 75% of the cohort and tested on the remaining 25% of subjects, calculating expected and observed frequencies of remission and c-index values. RESULTS: Our best Cox logistic model combining 18 clinical variables a median of 2 days after diagnosis had a c-index of 0.69 (95% CI 0.67-0.71), better than using JIA category alone (0.59, 95% CI 0.56-0.63). Children in the lowest probability decile had a 20% chance of remission and 21% attained remission; children in the highest decile had a 69% chance of remission and 73% attained remission. Compared to 5% of subjects identified by JIA category alone, the model identified 14% of subjects as low chance of remission (probability < 0.25), of whom 77% failed to attain remission. CONCLUSION: Although the model did not meet our a priori performance threshold (c-index > 0.70), it identified 3 times more subjects with low chance of remission than did JIA category alone, and it may serve as a benchmark for assessing value added by future laboratory/imaging biomarkers.


Asunto(s)
Antirreumáticos/uso terapéutico , Artritis Juvenil/tratamiento farmacológico , Productos Biológicos/uso terapéutico , Adolescente , Artritis Juvenil/diagnóstico , Niño , Preescolar , Femenino , Humanos , Modelos Logísticos , Masculino , Pronóstico , Inducción de Remisión , Índice de Severidad de la Enfermedad , Insuficiencia del Tratamiento , Resultado del Tratamiento
19.
Appl Physiol Nutr Metab ; 44(7): 736-743, 2019 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-30500268

RESUMEN

Physical activity is promoted for optimal health but may carry risks for children who require medically necessary activity restrictions. The sensitivity, specificity, and reliability of the Get Active Questionnaire (GAQ) for identifying children needing special considerations during physical activity was evaluated among parents of 207 children aged 3 to 14 years (97 (47%) female, mean age of 8.4 ± 3.7 years). GAQ responses were compared with reports obtained directly from the treating physician (n = 192/207) and information in the medical chart (clinic notes/physician letter, n = 111/207). Parent GAQ responses (either "No to all questions" or "Yes to 1 or more questions") agreed with physician (κ = 0.16, p = 0.003) and medical record (κ = 0.15, p = 0.003) reports regarding the need for special consideration during physical activity (Yes/No). Sensitivity was 71% (20/28) and specificity was 59% (96/164), with few false-negative responses. The GAQ was most effective for rheumatology and cardiology patients. False positives were 29% to 46%, except among chronic pain (80%) and rehabilitation (75%) patients. Test-retest reliability was moderate (Cronbach's α = 0.70) among 57 parents who repeated the GAQ 1 week later. The GAQ effectively identified children not requiring physical activity restrictions and those with medical conditions similar to those of concern among adults. Additional questions from a qualified exercise professional, as recommended for a "Yes" response on the GAQ, should reduce the false-positive burden. Indicating the timeframe of reference for each question and including an option to describe other special considerations (e.g., medication, supervision) are recommended.


Asunto(s)
Ejercicio Físico/fisiología , Encuestas y Cuestionarios , Adolescente , Cardiología , Niño , Preescolar , Reacciones Falso Negativas , Femenino , Humanos , Masculino , Registros Médicos , Médicos , Reproducibilidad de los Resultados , Reumatología , Sensibilidad y Especificidad
20.
Pediatr Radiol ; 49(1): 23-36, 2019 01.
Artículo en Inglés | MEDLINE | ID: mdl-30225645

RESUMEN

Pyogenic arthritis, pyoderma gangrenosum and acne (PAPA) syndrome is a rare autosomal-dominant autoinflammatory disease of incomplete penetrance and variable expression. PAPA syndrome is the result of a mutation in the proline serine threonine phosphatase-interacting protein 1 (PSTPIP1/CD2BP1) gene located on chromosome 15, which results in an abnormal overproduction of the pro-inflammatory cytokine interleukin-1ß (IL-1). This syndrome clinically manifests as early onset of recurrent episodes of acute aseptic inflammation of the joints, generally occurring in the first two decades of life, followed by manifestation of characteristic skin lesions in the third decade, after an obvious decline in the joint symptoms. Although uncommon, the potential clinical implications of PAPA syndrome warrant an appropriate diagnosis in a timely fashion.


Asunto(s)
Acné Vulgar/diagnóstico por imagen , Acné Vulgar/genética , Artritis Infecciosa/diagnóstico por imagen , Artritis Infecciosa/genética , Piodermia Gangrenosa/diagnóstico por imagen , Piodermia Gangrenosa/genética , Adolescente , Diagnóstico Diferencial , Humanos , Masculino , Síndrome
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...