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1.
Farm. hosp ; 47(4): 155-160, Julio - Agosto 2023. tab
Artigo em Inglês, Espanhol | IBECS | ID: ibc-223572

RESUMO

La esclerosis múltiple es una enfermedad desmielinizante crónica del sistema nervioso central y discapacitante a largo plazo. Existen diferentes tratamientos modificadores de la enfermedad. Estos pacientes, a pesar de ser generalmente jóvenes, tienen una elevada comorbilidad y riesgo de polimedicación por su compleja sintomatología y discapacidad. Objetivo principal determinar el tipo de tratamiento modificador de la enfermedad en los pacientes atendidos en servicios de farmacia de hospitales españoles. Objetivos secundarios Conocer los tratamientos concomitantes, determinar la prevalencia de la polifarmacia, identificar la prevalencia de interacciones y analizar la complejidad farmacoterapéutica. Método estudio observacional, transversal y multicéntrico. Se incluyeron todos los pacientes con diagnóstico de esclerosis múltiple y tratamiento modificador de la enfermedad activo a los que se atendió en las consultas de pacientes externos o en los hospitales de día durante la segunda semana de febrero 2021. Se recogieron: el tratamiento modificador, las comorbilidades y los tratamientos concomitantes para determinar el patrón de multimorbilidad, polifarmacia, complejidad farmacoterapéutica (Medication Regimen Complexity Index) e interacciones medicamentosas. Resultados se incluyeron 1.407 pacientes de 57 centros de 15 Comunidades Autónomas. La forma de presentación de la enfermedad más frecuente fue la forma remitente recurrente (89,3%). El tratamiento modificador de la enfermedad más prescrito fue dimetilfumarato (19,1%), seguido de teriflunomida (14,0%). De los tratamientos modificadores parenterales, los 2 más prescritos fueron el acetato de glatiramero y el natalizumab con un 11,1 y 10,8% respectivamente. El 24,7% de los pacientes tenían una comorbilidad y el 39,8% al menos 2 comorbilidades. El 13,3% pertenecía al menos a uno de los patrones definidos de multimorbilidad y el 16,5% pertenecían a 2 o más patrones. ... (AU)


Multiple sclerosis is a chronic demyelinating disease of the central nervous system and long-term disabling. Different disease-modifying treatments are available. These patients, despite being generally young, have high comorbidity and risk of polymedication due to their complex symptomatology and disability.Objective primaryTo determine the type of disease-modifying treatment in patients seen in Spanish hospital pharmacy departments.Secondary objectivesTo determine concomitant treatments, determine the prevalence of polypharmacy, identify the prevalence of interactions and analyse pharmacotherapeutic complexity.MethodObservational, cross-sectional, multicentre study. All patients with a diagnosis of multiple sclerosis and active disease-modifying treatment who were seen in outpatient clinics or day hospitals during the second week of February 2021 were included. Modifying treatment, comorbidities and concomitant treatments were collected to determine multimorbidity pattern, polypharmacy, pharmacotherapeutic complexity (Medication Regimen Complexity Index) and drug-drug interactions.Results1,407 patients from 57 centres in 15 autonomous communities were included. The most frequent form of disease presentation was the relapsing remitting form (89.3%). The most prescribed disease-modifying treatment was dimethyl fumarate (19.1%), followed by teriflunomide (14.0%). Of the parenteral disease-modifying treatments, the two most prescribed were glatiramer acetate and natalizumab with 11.1% and 10.8%. 24.7% of the patients had one comorbidity and 39.8% had at least 2 comorbidities. 13.3% belonged to at least one of the defined patterns of multimorbidity and 16.5% belonged to 2 or more patterns. The concomitant treatments prescribed were psychotropic drugs (35.5%); antiepileptic drugs (13.9%) and antihypertensive drugs and drugs for cardiovascular pathologies (12.4%). ... (AU)


Assuntos
Humanos , Esclerose Múltipla/tratamento farmacológico , Esclerose Múltipla/terapia , Multimorbidade , Polimedicação , Interações Medicamentosas , Espanha , Estudos Transversais/métodos , Estudos Multicêntricos como Assunto/métodos
3.
Hum Brain Mapp ; 43(4): 1179-1195, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-34904312

RESUMO

To acquire larger samples for answering complex questions in neuroscience, researchers have increasingly turned to multi-site neuroimaging studies. However, these studies are hindered by differences in images acquired across multiple sites. These effects have been shown to bias comparison between sites, mask biologically meaningful associations, and even introduce spurious associations. To address this, the field has focused on harmonizing data by removing site-related effects in the mean and variance of measurements. Contemporaneously with the increase in popularity of multi-center imaging, the use of machine learning (ML) in neuroimaging has also become commonplace. These approaches have been shown to provide improved sensitivity, specificity, and power due to their modeling the joint relationship across measurements in the brain. In this work, we demonstrate that methods for removing site effects in mean and variance may not be sufficient for ML. This stems from the fact that such methods fail to address how correlations between measurements can vary across sites. Data from the Alzheimer's Disease Neuroimaging Initiative is used to show that considerable differences in covariance exist across sites and that popular harmonization techniques do not address this issue. We then propose a novel harmonization method called Correcting Covariance Batch Effects (CovBat) that removes site effects in mean, variance, and covariance. We apply CovBat and show that within-site correlation matrices are successfully harmonized. Furthermore, we find that ML methods are unable to distinguish scanner manufacturer after our proposed harmonization is applied, and that the CovBat-harmonized data retain accurate prediction of disease group.


Assuntos
Córtex Cerebral/anatomia & histologia , Córtex Cerebral/diagnóstico por imagem , Processamento de Imagem Assistida por Computador , Estudos Multicêntricos como Assunto , Neuroimagem , Conjuntos de Dados como Assunto , Humanos , Processamento de Imagem Assistida por Computador/métodos , Processamento de Imagem Assistida por Computador/normas , Aprendizado de Máquina , Modelos Teóricos , Estudos Multicêntricos como Assunto/métodos , Estudos Multicêntricos como Assunto/normas , Neuroimagem/métodos , Neuroimagem/normas
4.
Hum Brain Mapp ; 43(1): 555-565, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-33064342

RESUMO

To identify neuroimaging biomarkers of alcohol dependence (AD) from structural magnetic resonance imaging, it may be useful to develop classification models that are explicitly generalizable to unseen sites and populations. This problem was explored in a mega-analysis of previously published datasets from 2,034 AD and comparison participants spanning 27 sites curated by the ENIGMA Addiction Working Group. Data were grouped into a training set used for internal validation including 1,652 participants (692 AD, 24 sites), and a test set used for external validation with 382 participants (146 AD, 3 sites). An exploratory data analysis was first conducted, followed by an evolutionary search based feature selection to site generalizable and high performing subsets of brain measurements. Exploratory data analysis revealed that inclusion of case- and control-only sites led to the inadvertent learning of site-effects. Cross validation methods that do not properly account for site can drastically overestimate results. Evolutionary-based feature selection leveraging leave-one-site-out cross-validation, to combat unintentional learning, identified cortical thickness in the left superior frontal gyrus and right lateral orbitofrontal cortex, cortical surface area in the right transverse temporal gyrus, and left putamen volume as final features. Ridge regression restricted to these features yielded a test-set area under the receiver operating characteristic curve of 0.768. These findings evaluate strategies for handling multi-site data with varied underlying class distributions and identify potential biomarkers for individuals with current AD.


Assuntos
Alcoolismo/diagnóstico por imagem , Córtex Cerebral/diagnóstico por imagem , Aprendizado de Máquina , Imageamento por Ressonância Magnética , Estudos Multicêntricos como Assunto , Neuroimagem , Putamen/diagnóstico por imagem , Córtex Cerebral/patologia , Humanos , Imageamento por Ressonância Magnética/métodos , Imageamento por Ressonância Magnética/normas , Estudos Multicêntricos como Assunto/métodos , Estudos Multicêntricos como Assunto/normas , Neuroimagem/métodos , Neuroimagem/normas , Putamen/patologia , Reprodutibilidade dos Testes
5.
Hum Brain Mapp ; 43(1): 255-277, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-32596977

RESUMO

The ENIGMA group on Generalized Anxiety Disorder (ENIGMA-Anxiety/GAD) is part of a broader effort to investigate anxiety disorders using imaging and genetic data across multiple sites worldwide. The group is actively conducting a mega-analysis of a large number of brain structural scans. In this process, the group was confronted with many methodological challenges related to study planning and implementation, between-country transfer of subject-level data, quality control of a considerable amount of imaging data, and choices related to statistical methods and efficient use of resources. This report summarizes the background information and rationale for the various methodological decisions, as well as the approach taken to implement them. The goal is to document the approach and help guide other research groups working with large brain imaging data sets as they develop their own analytic pipelines for mega-analyses.


Assuntos
Transtornos de Ansiedade/diagnóstico por imagem , Córtex Cerebral/diagnóstico por imagem , Interpretação Estatística de Dados , Metanálise como Assunto , Estudos Multicêntricos como Assunto , Neuroimagem , Humanos , Estudos Multicêntricos como Assunto/métodos , Estudos Multicêntricos como Assunto/normas , Neuroimagem/métodos , Neuroimagem/normas
7.
J Med Internet Res ; 23(9): e29511, 2021 09 20.
Artigo em Inglês | MEDLINE | ID: mdl-34542417

RESUMO

Recent literature supports the efficacy and efficiency of telemedicine in improving various health outcomes despite the wide variability in results. Understanding site-specific issues in the implementation of telemedicine trials for broader replication and generalizability of results is needed. Lessons can be learned from existing trials, and a blueprint can guide researchers to conduct these challenging studies using telemedicine more efficiently and effectively. This viewpoint presents relevant challenges and solutions for conducting multisite telemedicine trials using 7 ongoing and completed studies funded by the Patient-Centered Outcomes Research Institute portfolio of large multisite trials to highlight the challenges in implementing telemedicine trials. Critical issues of ensuring leadership and buy-in, appropriate funding, and diverse and representative trials are identified and described, as well as challenges related to clinical, informatics, regulatory, legal, quality, and billing. The lessons learned from these studies were used to create a blueprint of key aspects to consider for the design and implementation of multisite telemedicine trials.


Assuntos
Telemedicina , Ensaios Clínicos como Assunto/métodos , Humanos , Estudos Longitudinais , Estudos Multicêntricos como Assunto/métodos , Pesquisadores
8.
Hum Brain Mapp ; 42(16): 5278-5287, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34402132

RESUMO

Multisite magnetic resonance imaging (MRI) is increasingly used in clinical research and development. Measurement biases-caused by site differences in scanner/image-acquisition protocols-negatively influence the reliability and reproducibility of image-analysis methods. Harmonization can reduce bias and improve the reproducibility of multisite datasets. Herein, a traveling-subject (TS) dataset including 56 T1-weighted MRI scans of 20 healthy participants in three different MRI procedures-20, 19, and 17 subjects in Procedures 1, 2, and 3, respectively-was considered to compare the reproducibility of TS-GLM, ComBat, and TS-ComBat harmonization methods. The minimum participant count required for harmonization was determined, and the Cohen's d between different MRI procedures was evaluated as a measurement-bias indicator. The measurement-bias reduction realized with different methods was evaluated by comparing test-retest scans for 20 healthy participants. Moreover, the minimum subject count for harmonization was determined by comparing test-retest datasets. The results revealed that TS-GLM and TS-ComBat reduced measurement bias by up to 85 and 81.3%, respectively. Meanwhile, ComBat showed a reduction of only 59.0%. At least 6 TSs were required to harmonize data obtained from different MRI scanners, complying with the imaging protocol predetermined for multisite investigations and operated with similar scan parameters. The results indicate that TS-based harmonization outperforms ComBat for measurement-bias reduction and is optimal for MRI data in well-prepared multisite investigations. One drawback is the small sample size used, potentially limiting the applicability of ComBat. Investigation on the number of subjects needed for a large-scale study is an interesting future problem.


Assuntos
Encéfalo/anatomia & histologia , Encéfalo/diagnóstico por imagem , Processamento de Imagem Assistida por Computador/métodos , Imageamento por Ressonância Magnética , Estudos Multicêntricos como Assunto , Neuroimagem , Adulto , Humanos , Processamento de Imagem Assistida por Computador/instrumentação , Processamento de Imagem Assistida por Computador/normas , Imageamento por Ressonância Magnética/instrumentação , Imageamento por Ressonância Magnética/métodos , Imageamento por Ressonância Magnética/normas , Estudos Multicêntricos como Assunto/instrumentação , Estudos Multicêntricos como Assunto/métodos , Estudos Multicêntricos como Assunto/normas , Neuroimagem/instrumentação , Neuroimagem/métodos , Neuroimagem/normas
10.
J Clin Neurosci ; 89: 216-222, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-34119270

RESUMO

BACKGROUND AND PURPOSE: In this post-hoc analysis using acute dual study dataset, the impacts of cerebral microbleeds (MBs) after mild stroke on clinical outcome were investigated. METHODS: The number of MBs on admission was categorized as 1) no MBs, 2) MBs 1-4, 3) MBs 5-9, and 4) MBs ≥ 10. The efficacy outcome was defined as neurological deterioration and stroke recurrence within 14 days. Safety outcomes included ICH and/or SAH as well as extracranial hemorrhages. RESULTS: Of the 1102 patients, 780 (71%) had no MBs on admission, while 230 (21%) had MBs 1-4, 48 (4%) had MBs 5-9, and 44 (4%) had MBs ≥ 10. The number of MBs was not associated with the neurological deterioration and/or stroke recurrence (p = 0.934), ICH and/or SAH (p = 0.743), and extracranial hemorrhage (p = 0.205). Favorable outcome was seem in 84% in the No MBs group, 83% in the MBs 1-4, 94% in the MBs 5-9, and 85% in the MBs ≥ 10 (p = 0.304). Combined cilostazol and aspirin therapy did not alter any rates of efficacy and safety outcomes among the no MBs, MBs 1-4, MBs 5-9, and MBs ≥ 10 groups compared to aspirin alone (all p > 0.05). By multivariate regression analysis, a history of ICH and diastolic blood pressure were the independent parameters to all of the MBs criteria (presence, MBs ≥ 5, and MBs ≥ 10). CONCLUSIONS: MBs did not alter the clinical outcome at 3 months of onset. Elevated diastolic blood pressure and a history of ICH were the essential parameters related to the MBs.


Assuntos
Terapia Antiplaquetária Dupla/métodos , Microvasos , Estudos Multicêntricos como Assunto/métodos , Inibidores da Agregação Plaquetária/administração & dosagem , Ensaios Clínicos Controlados Aleatórios como Assunto/métodos , Acidente Vascular Cerebral/tratamento farmacológico , Idoso , Aspirina/administração & dosagem , Aspirina/efeitos adversos , Hemorragia Cerebral/induzido quimicamente , Hemorragia Cerebral/diagnóstico por imagem , Cilostazol/administração & dosagem , Cilostazol/efeitos adversos , Feminino , Humanos , Imageamento por Ressonância Magnética/métodos , Masculino , Microvasos/diagnóstico por imagem , Microvasos/efeitos dos fármacos , Pessoa de Meia-Idade , Inibidores da Agregação Plaquetária/efeitos adversos , Estudos Prospectivos , Estudos Retrospectivos , Fatores de Risco , Acidente Vascular Cerebral/diagnóstico por imagem , Resultado do Tratamento
11.
Neuroimage ; 237: 118203, 2021 08 15.
Artigo em Inglês | MEDLINE | ID: mdl-34048898

RESUMO

Functional localizers are invaluable as they can help define regions of interest, provide cross-study comparisons, and most importantly, allow for the aggregation and meta-analyses of data across studies and laboratories. To achieve these goals within the non-human primate (NHP) imaging community, there is a pressing need for the use of standardized and validated localizers that can be readily implemented across different groups. The goal of this paper is to provide an overview of the value of localizer protocols to imaging research and we describe a number of commonly used or novel localizers within NHPs, and keys to implement them across studies. As has been shown with the aggregation of resting-state imaging data in the original PRIME-DE submissions, we believe that the field is ready to apply the same initiative for task-based functional localizers in NHP imaging. By coming together to collect large datasets across research group, implementing the same functional localizers, and sharing the localizers and data via PRIME-DE, it is now possible to fully test their robustness, selectivity and specificity. To do this, we reviewed a number of common localizers and we created a repository of well-established localizer that are easily accessible and implemented through the PRIME-RE platform.


Assuntos
Mapeamento Encefálico , Imageamento por Ressonância Magnética , Processos Mentais , Estudos Multicêntricos como Assunto , Neurociências , Primatas , Córtex Sensório-Motor , Animais , Comportamento Animal/fisiologia , Mapeamento Encefálico/métodos , Mapeamento Encefálico/normas , Processos Mentais/fisiologia , Estudos Multicêntricos como Assunto/métodos , Estudos Multicêntricos como Assunto/normas , Neurociências/métodos , Neurociências/normas , Córtex Sensório-Motor/diagnóstico por imagem , Córtex Sensório-Motor/fisiologia
12.
Stroke ; 52(8): e499-e516, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-34039035

RESUMO

Stroke is a leading cause of the adult disability epidemic in the United States, with a major contribution from poststroke cognitive impairment and dementia (PSCID), the rates of which are disproportionally high among the health disparity populations. Despite the PSCID's overwhelming impact on public health, a knowledge gap exists with regard to the complex interaction between the acute stroke event and highly prevalent preexisting brain pathology related to cerebrovascular and Alzheimer disease or related dementia. Understanding the factors that modulate PSCID risk in relation to index stroke event is critically important for developing personalized prognostication of PSCID, targeted interventions to prevent it, and for informing future clinical trial design. The DISCOVERY study (Determinants of Incident Stroke Cognitive Outcomes and Vascular Effects on Recovery), a collaborative network of thirty clinical performance clinical sites with access to acute stroke populations and the expertise and capacity for systematic assessment of PSCID will address this critical challenge. DISCOVERY is a prospective, multicenter, observational, nested-cohort study of 8000 nondemented ischemic and hemorrhagic stroke patients enrolled at the time of index stroke and followed for a minimum of 2 years, with serial cognitive evaluations and assessments of functional outcome, with subsets undergoing research magnetic resonance imaging and positron emission tomography and comprehensive genetic/genomic and fluid biomarker testing. The overall scientific objective of this study is to elucidate mechanisms of brain resilience and susceptibility to PSCID in diverse US populations based on complex interplay between life-course exposure to multiple vascular risk factors, preexisting burden of microvascular and neurodegenerative pathology, the effect of strategic acute stroke lesions, and the mediating effect of genomic and epigenomic variation.


Assuntos
Disfunção Cognitiva/epidemiologia , Demência Vascular/epidemiologia , Projetos de Pesquisa , Acidente Vascular Cerebral/epidemiologia , Ensaios Clínicos como Assunto/métodos , Disfunção Cognitiva/diagnóstico por imagem , Disfunção Cognitiva/etiologia , Demência Vascular/diagnóstico por imagem , Demência Vascular/etiologia , Humanos , Estudos Multicêntricos como Assunto/métodos , Estudos Observacionais como Assunto/métodos , Estudos Prospectivos , Acidente Vascular Cerebral/complicações , Acidente Vascular Cerebral/diagnóstico por imagem
14.
Am J Hematol ; 96(6): 690-697, 2021 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-33735453

RESUMO

Surrogate endpoints are being used more frequently in randomized controlled trials, even though they do not consistently corelate with patient outcomes. We systemically evaluated the use of surrogate endpoints in multiple myeloma randomized controlled trials over the past 15 years. We searched three databases (Pubmed, Embase, Cochrane) for multiple myeloma randomized controlled trials from January 1, 2005 to December 30, 2019. The primary outcome of our study was the proportion of randomized controlled trials that used overall survival as their primary endpoint. Secondary outcomes included the use of surrogate endpoints, and trends over time, and whether they differed based on study sponsorship. We included 151 randomized controlled trials in our analysis. The primary endpoint was overall survival (OS) in 17 (11.3%) of studies, progression free survival (PFS) or event-defined endpoints in 91 studies (60.3%) and response-based endpoints in 44 studies (29.1%). Quality of life was a primary endpoint in only three studies (2%). The use of OS as a primary endpoint decreased from 28.5% of trials from 2005 to 2009 to 5.5% from 2015 to 2019. There has been a decrease in the clinically meaningful endpoint of OS over the past 15 years in multiple myeloma randomized controlled trials. Use of quality of life as a primary endpoint remains exceedingly low. It remains paramount to recognize that the use of surrogate endpoints is imperfect, and care based upon them requires constant physician and patient re-analysis.


Assuntos
Mieloma Múltiplo/terapia , Ensaios Clínicos Controlados Aleatórios como Assunto/métodos , Biomarcadores , Ensaios Clínicos Fase II como Assunto/métodos , Ensaios Clínicos Fase III como Assunto/métodos , Humanos , Estudos Multicêntricos como Assunto/métodos , Mieloma Múltiplo/tratamento farmacológico , Mieloma Múltiplo/mortalidade , Mieloma Múltiplo/patologia , Neoplasia Residual , Intervalo Livre de Progressão , Qualidade de Vida , Análise de Sobrevida , Fatores de Tempo
15.
Am Heart J ; 236: 49-58, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33621541

RESUMO

BACKGROUND: Current guidelines recommend administering dual antiplatelet therapy (DAPT) for 12 months to patients with acute coronary syndromes (ACS) and without contraindications after drug-eluting stent (DES) implantation. A recent study reported that 3 months of DAPT followed by ticagrelor monotherapy is effective and safe in ACS patients undergoing DES implantation compared with the standard duration of DAPT. However, it is unclear whether antiplatelet monotherapy with ticagrelor alone versus ticagrelor plus aspirin reduces the incidence of clinically relevant bleeding without increasing the risk of major adverse cardiovascular and cerebrovascular events (MACCEs) in ACS patients undergoing percutaneous coronary intervention (PCI) with DES implantation guided by either intravascular ultrasound (IVUS) or angiography who have completed a 1-month course of DAPT with aspirin plus ticagrelor. METHODS: The IVUS-ACS and ULTIMATE-DAPT is a prospective, multicenter, randomized, controlled trial designed to determine (1) whether IVUS-guided versus angiography-guided DES implantation in patients with ACS reduces the risk of target vessel failure (TVF) at 12 months and (2) whether ticagrelor alone versus ticagrelor plus aspirin reduces the risk of clinically relevant bleeding without increasing the risk of MACCE 1-12 months after the index PCI in ACS patients undergoing DES implantation guided by either IVUS or angiography. This study will enroll 3486 ACS patients eligible for DES implantation, as confirmed by angiographic studies. The patients who meet the inclusion criteria and none of the exclusion criteria will be randomly assigned in a 1:1 fashion to the IVUS- or angiography-guided group (first randomization). All enrolled patients will complete a 1-month course of DAPT with aspirin plus ticagrelor after the index PCI. Patients with no MACCEs or major bleeding (≥Bleeding Academic Research Consortium (BARC) 3b) within 30 days will be randomized in a 1:1 fashion to either the ticagrelor plus matching placebo (SAPT)group or ticagrelor plus aspirin (DAPT)group for an additional 11 months (second randomization). The primary endpoint of the IVUS-ACS trial is TVF at 12 months, including cardiac death, target vessel myocardial infarction (TVMI), or clinically driven target vessel revascularization (CD-TVR). The primary superiority endpoint of the ULTIMATE-DAPT trial is clinically relevant bleeding, defined as BARC Types 2, 3, or 5 bleeding, and the primary non-inferiority endpoint of the ULTIMATE-DAPT trial is MACCE, defined as cardiac death, myocardial infarction, ischemic stroke, CD-TVR, or definite stent thrombosis occurring 1-12 months in the second randomized population. CONCLUSION: The IVUS-ACS and ULTIMATE-DAPT trial is designed to test the efficacy and safety of 2 different antiplatelet strategies in ACS patients undergoing PCI with DES implantation guided by either IVUS or angiography. This study will provide novel insights into the optimal DAPT duration in ACS patients undergoing PCI and provide evidence on the clinical benefits of IVUS-guided PCI in ACS patients.


Assuntos
Síndrome Coronariana Aguda/terapia , Aspirina , Duração da Terapia , Hemorragia , Intervenção Coronária Percutânea , Complicações Pós-Operatórias/prevenção & controle , Ensaios Clínicos Controlados Aleatórios como Assunto/métodos , Ticlopidina , Adulto , Aspirina/administração & dosagem , Aspirina/efeitos adversos , Angiografia Coronária/métodos , Stents Farmacológicos , Terapia Antiplaquetária Dupla/métodos , Feminino , Hemorragia/induzido quimicamente , Hemorragia/prevenção & controle , Humanos , Masculino , Estudos Multicêntricos como Assunto/métodos , Avaliação de Processos e Resultados em Cuidados de Saúde , Intervenção Coronária Percutânea/efeitos adversos , Intervenção Coronária Percutânea/instrumentação , Intervenção Coronária Percutânea/métodos , Inibidores da Agregação Plaquetária/administração & dosagem , Inibidores da Agregação Plaquetária/efeitos adversos , Complicações Pós-Operatórias/etiologia , Risco Ajustado/métodos , Cirurgia Assistida por Computador/métodos , Ticlopidina/administração & dosagem , Ticlopidina/efeitos adversos , Ultrassonografia de Intervenção/métodos
16.
BMJ Open ; 11(1): e044190, 2021 01 28.
Artigo em Inglês | MEDLINE | ID: mdl-33509851

RESUMO

INTRODUCTION: In current medical practice of curative treatment for non-metastatic oesophageal cancer, surgery on principle is carried out by oesophagectomy after neoadjuvant treatment. However, oesophagectomy is often associated with postoperative morbidity and mortality. Taking into account that modern neoadjuvant therapy is effective and many of patients show no vital tumour cells in the operative specimens, we aim to perform a scoping review as part of the development phase for a prospectively planned multicentre randomised controlled trial investigating 'surgery as needed vs surgery on principle in patients with postneoadjuvant complete response of oesophageal cancer' (Prospective trial registration number DRKS00022801). This scoping approach will allow us to finally define and/or adapt the research question including the design and methodology of the randomised controlled trial taking into account the findings for example, research gaps and/or pitfalls in the currently available study pool addressing this or very similar questions. METHODS AND ANALYSIS: To identify relevant research, we will conduct searches in the electronic databases Medline, Web of Science Core Collection, Cochrane Library and Science Direct. We will also check references of relevant studies and perform a cited reference research (forward citation tracking). Titles and abstracts of the records identified by the searches will be screened and full texts of all potentially relevant articles will be obtained. We will consider randomised trials and non-randomised controlled studies. Data extraction tables will be set up, including study and patients' characteristics, aim of study and reported outcomes. We will summarise the data using tables and figures (eg, bubble plots) to present the research landscape and to describe potential clusters and/or gaps to support the planning of a randomised trial in this patient population. ETHICS AND DISSEMINATION: Ethical approval is not required for this scoping review. Study findings will be shared by publication in a peer-reviewed journal and by presentation to key stakeholders on scientific meetings.


Assuntos
Neoplasias Esofágicas/terapia , Esofagectomia/métodos , Estudos Multicêntricos como Assunto/métodos , Terapia Neoadjuvante , Ensaios Clínicos Controlados Aleatórios como Assunto/métodos , Neoplasias Esofágicas/diagnóstico por imagem , Neoplasias Esofágicas/cirurgia , Feminino , Humanos , Masculino , Avaliação de Resultados em Cuidados de Saúde/métodos , Literatura de Revisão como Assunto
17.
BMC Nephrol ; 22(1): 2, 2021 01 06.
Artigo em Inglês | MEDLINE | ID: mdl-33407230

RESUMO

BACKGROUND: Inherited cystic kidney disease is a spectrum of disorders in which clusters of renal cysts develop as the result of genetic mutation. The exact methods and pipelines for defining genetic mutations of inherited cystic kidney disease are not clear at this point. This 3-year, prospective, multicenter, cohort study was designed to set up a cohort of Korean patients with inherited cystic kidney disease, establish a customized genetic analysis pipeline for each disease subtype, and identify modifying genes associated with the severity of the disease phenotype. METHODS/DESIGN: From May 2020 to May 2022, we aim to recruit 800 patients and their family members to identify pathogenic mutations. Patients with more than 3 renal cysts in both kidneys are eligible to be enrolled. Cases of simple renal cysts and acquired cystic kidney disease that involve cyst formation as the result of renal failure will be excluded from this study. Demographic, laboratory, and imaging data as well as family pedigree will be collected at baseline. Renal function and changes in total kidney volume will be monitored during the follow-up period. Genetic identification of each case of inherited cystic kidney disease will be performed using a targeted gene panel of cystogenesis-related genes, whole exome sequencing (WES) and/or family segregation studies. Genotype-phenotype correlation analysis will be performed to elucidate the genetic effect on the severity of the disease phenotype. DISCUSSION: This is the first nationwide cohort study on patients with inherited cystic kidney disease in Korea. We will build a multicenter cohort to describe the clinical characteristics of Korean patients with inherited cystic kidney disease, elucidate the genotype of each disease, and demonstrate the genetic effects on the severity of the disease phenotype. TRIAL REGISTRATION: This cohort study was retrospectively registered at the Clinical Research Information Service ( KCT0005580 ) operated by the Korean Center for Disease Control and Prevention on November 5th, 2020.


Assuntos
Doenças Renais Císticas/genética , Medicina de Precisão , Projetos de Pesquisa , Estudos de Coortes , Humanos , Estudos Multicêntricos como Assunto/métodos , Estudos Prospectivos , Fatores de Tempo
19.
Neurochirurgie ; 67(1): 69-75, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31351079

RESUMO

INTRODUCTION: Medulloblastoma (MB) is the most common malignant brain tumour in children. Despite significant progress in its management, a proportion of children relapse; tumour recurrence still carries a poor prognosis. While surgery is a mainstay of the management of primary MB, its role in recurrent MB is unclear. The objective of this literature review is to explore current practice and potential benefits of surgery in recurrent MB. MATERIAL AND METHODS: We reviewed all articles published in PubMed and Scholar from 1990 to 2018 with the following terms: "medulloblastoma" AND "recurrence" AND "neurosurgical procedures". Among 69 articles, 12 were directly relevant. RESULTS: A total of 581 cases of recurrent MB were identified from published series. Median time from diagnosis to relapse was 20.4months. The majority of relapses involved disseminated craniospinal disease and only one-fifth relapses was located in the posterior fossa. The outcome was consistently poor, with a median survival of 12.4% and a median survival time after relapse of 18.5months. In the HIP-SIOP-PNET4 study, surgery at relapse was performed in 25% of cases and was associated with improved prognosis in solitary posterior fossa recurrence. CONCLUSION: Recurrent medulloblastoma is often fatal in children who have previously received radiotherapy. The role of surgery in improving survival is unclear, but there is some evidence that resection of a focal single posterior fossa recurrence can bring survival benefit. The value of biopsy lies in the optimisation and selection of appropriate targeted therapy and in excluding a second malignancy.


Assuntos
Neoplasias Cerebelares/cirurgia , Meduloblastoma/cirurgia , Recidiva Local de Neoplasia/cirurgia , Procedimentos Neurocirúrgicos/métodos , Adolescente , Neoplasias Cerebelares/diagnóstico , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Meduloblastoma/diagnóstico , Estudos Multicêntricos como Assunto/métodos , Recidiva Local de Neoplasia/diagnóstico , Procedimentos Neurocirúrgicos/tendências , Prognóstico , Estudos Prospectivos , Ensaios Clínicos Controlados Aleatórios como Assunto/métodos
20.
CNS Neurosci Ther ; 27(2): 149-162, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-33352000

RESUMO

BACKGROUND: Mild cognitive impairment (MCI) is a neurocognitive state between normal cognitive aging and dementia, with evidence of neuropsychological changes but insufficient functional decline to warrant a diagnosis of dementia. Individuals with MCI are at increased risk for progression to dementia; and an appreciable proportion display neuropsychiatric symptoms (NPS), also a known risk factor for dementia. Cerebrovascular disease (CVD) is thought to be an underdiagnosed contributor to MCI/dementia. The Ginkgo biloba extract, EGb 761® , is increasingly being used for the symptomatic treatment of cognitive disorders with/without CVD, due to its known neuroprotective effects and cerebrovascular benefits. AIMS: To present consensus opinion from the ASian Clinical Expert group on Neurocognitive Disorders (ASCEND) regarding the role of EGb 761® in MCI. MATERIALS & METHODS: The ASCEND Group reconvened in September 2019 to present and critically assess the current evidence on the general management of MCI, including the efficacy and safety of EGb 761® as a treatment option. RESULTS: EGb 761® has demonstrated symptomatic improvement in at least four randomized trials, in terms of cognitive performance, memory, recall and recognition, attention and concentration, anxiety, and NPS. There is also evidence that EGb 761® may help delay progression from MCI to dementia in some individuals. DISCUSSION: EGb 761® is currently recommended in multiple guidelines for the symptomatic treatment of MCI. Due to its beneficial effects on cerebrovascular blood flow, it is reasonable to expect that EGb 761® may benefit MCI patients with underlying CVD. CONCLUSION: As an expert group, we suggest it is clinically appropriate to incorporate EGb 761® as part of the multidomain intervention for MCI.


Assuntos
Disfunção Cognitiva/tratamento farmacológico , Disfunção Cognitiva/epidemiologia , Gerenciamento Clínico , Extratos Vegetais/uso terapêutico , Ásia/epidemiologia , Disfunção Cognitiva/diagnóstico , Ginkgo biloba , Humanos , Estudos Multicêntricos como Assunto/métodos , Estudos Multicêntricos como Assunto/normas , Ensaios Clínicos Controlados Aleatórios como Assunto/métodos , Ensaios Clínicos Controlados Aleatórios como Assunto/normas , Resultado do Tratamento
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