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1.
J Med Internet Res ; 23(2): e22841, 2021 02 23.
Artigo em Inglês | MEDLINE | ID: mdl-33493130

RESUMO

BACKGROUND: Misdiagnosis, arbitrary charges, annoying queues, and clinic waiting times among others are long-standing phenomena in the medical industry across the world. These factors can contribute to patient anxiety about misdiagnosis by clinicians. However, with the increasing growth in use of big data in biomedical and health care communities, the performance of artificial intelligence (Al) techniques of diagnosis is improving and can help avoid medical practice errors, including under the current circumstance of COVID-19. OBJECTIVE: This study aims to visualize and measure patients' heterogeneous preferences from various angles of AI diagnosis versus clinicians in the context of the COVID-19 epidemic in China. We also aim to illustrate the different decision-making factors of the latent class of a discrete choice experiment (DCE) and prospects for the application of AI techniques in judgment and management during the pandemic of SARS-CoV-2 and in the future. METHODS: A DCE approach was the main analysis method applied in this paper. Attributes from different dimensions were hypothesized: diagnostic method, outpatient waiting time, diagnosis time, accuracy, follow-up after diagnosis, and diagnostic expense. After that, a questionnaire is formed. With collected data from the DCE questionnaire, we apply Sawtooth software to construct a generalized multinomial logit (GMNL) model, mixed logit model, and latent class model with the data sets. Moreover, we calculate the variables' coefficients, standard error, P value, and odds ratio (OR) and form a utility report to present the importance and weighted percentage of attributes. RESULTS: A total of 55.8% of the respondents (428 out of 767) opted for AI diagnosis regardless of the description of the clinicians. In the GMNL model, we found that people prefer the 100% accuracy level the most (OR 4.548, 95% CI 4.048-5.110, P<.001). For the latent class model, the most acceptable model consists of 3 latent classes of respondents. The attributes with the most substantial effects and highest percentage weights are the accuracy (39.29% in general) and expense of diagnosis (21.69% in general), especially the preferences for the diagnosis "accuracy" attribute, which is constant across classes. For class 1 and class 3, people prefer the AI + clinicians method (class 1: OR 1.247, 95% CI 1.036-1.463, P<.001; class 3: OR 1.958, 95% CI 1.769-2.167, P<.001). For class 2, people prefer the AI method (OR 1.546, 95% CI 0.883-2.707, P=.37). The OR of levels of attributes increases with the increase of accuracy across all classes. CONCLUSIONS: Latent class analysis was prominent and useful in quantifying preferences for attributes of diagnosis choice. People's preferences for the "accuracy" and "diagnostic expenses" attributes are palpable. AI will have a potential market. However, accuracy and diagnosis expenses need to be taken into consideration.


Assuntos
Inteligência Artificial , Diagnóstico , Preferência do Paciente , Médicos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , COVID-19 , China , Comportamento de Escolha , Técnicas e Procedimentos Diagnósticos/economia , Feminino , Gastos em Saúde , Humanos , Análise de Classes Latentes , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Pandemias , SARS-CoV-2 , Inquéritos e Questionários , Fatores de Tempo , Adulto Jovem
2.
Value Health ; 23(10): 1300-1306, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-33032773

RESUMO

OBJECTIVES: The National Institute for Health and Care Excellence (NICE) Diagnostics Assessment Programme (DAP) evaluates the cost-effectiveness of diagnostic technologies. A decision-making process benchmarking the incremental cost-effectiveness ratio (ICER) against a threshold while considering decision-modifying factors is common to NICE evaluations. This study investigated whether DAP decisions are consistent with the ICER thresholds described in the DAP manual, and to assess the impact of decision-modifying factors. METHODS: DAP evaluations published before March 2018 were reviewed, and the following items were extracted: diagnostic technologies evaluated, decision problems assessed, Diagnostics Advisory Committee (DAC) decisions, incremental quality-adjusted life years (QALYs), incremental costs, ICERs considered to be most plausible by the DAC, and decision justifications. RESULTS: All 30 evaluations were reviewed; 8 were excluded because the DAC concluded there was "insufficient evidence" for decision making. In the remaining 22 evaluations, 91 decision problems were identified for further analysis, of which 52, 15, and 24 received "recommended," "not recommended," and "not recommended-only in research" guidance, respectively. The overall consistency rate of the DAC decisions with the £20 000/QALY threshold was 73.6%. Diagnostic technologies that were not recommended, despite an ICER less than £20 000/QALY, were associated with a larger number of decision-modifying factors favoring the comparator, versus recommended diagnostic technologies with ICERs less than £20 000/QALY. For technologies with ICERs greater than £20 000/QALY, the number of decision-modifying factors was comparable for positive and negative recommendations. CONCLUSIONS: Most DAP decisions were consistent with the ICER threshold. However, cost-effectiveness was not the only determining factor in decision making; recommendations also considered patient- and healthcare-centric factors and uncertainty.


Assuntos
Análise Custo-Benefício/métodos , Técnicas e Procedimentos Diagnósticos/economia , Avaliação da Tecnologia Biomédica/métodos , Tomada de Decisões Gerenciais , Técnicas e Procedimentos Diagnósticos/normas , Humanos , Anos de Vida Ajustados por Qualidade de Vida , Medicina Estatal/organização & administração , Medicina Estatal/normas , Avaliação da Tecnologia Biomédica/normas , Reino Unido
3.
Eur J Cancer Care (Engl) ; 29(3): e13198, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-31825156

RESUMO

BACKGROUND: Early palliative care team consultation has been shown to reduce costs of hospital care. The objective of this study was to investigate the association between palliative care team (PCT) consultation and the content and costs of hospital care in patients with advanced cancer. MATERIAL AND METHODS: A prospective, observational study was conducted in 12 Dutch hospitals. Patients with advanced cancer and an estimated life expectancy of less than 1 year were included. We compared hospital care during 3 months of follow-up for patients with and without PCT involvement. Propensity score matching was used to estimate the effect of PCTs on costs of hospital care. Additionally, gamma regression models were estimated to assess predictors of hospital costs. RESULTS: We included 535 patients of whom 126 received PCT consultation. Patients with PCT had a worse life expectancy (life expectancy <3 months: 62% vs. 31%, p < .01) and performance status (p < .01, e.g., WHO status higher than 2:54% vs. 28%) and more often had no more options for anti-tumour therapy (57% vs. 30%, p < .01). Hospital length of stay, use of most diagnostic procedures, medication and other therapeutic interventions were similar. The total mean hospital costs were €8,393 for patients with and €8,631 for patients without PCT consultation. Analyses using propensity scores to control for observed confounding showed no significant difference in hospital costs. CONCLUSIONS: PCT consultation for patients with cancer in Dutch hospitals often occurs late in the patients' disease trajectories, which might explain why we found no effect of PCT consultation on costs of hospital care. Earlier consultation could be beneficial to patients and reduce costs of care.


Assuntos
Custos Hospitalares/estatística & dados numéricos , Tempo de Internação/economia , Neoplasias/terapia , Cuidados Paliativos , Encaminhamento e Consulta/estatística & dados numéricos , Idoso , Antineoplásicos/economia , Antineoplásicos/uso terapêutico , Estudos de Casos e Controles , Cuidados Críticos/economia , Cuidados Críticos/estatística & dados numéricos , Técnicas e Procedimentos Diagnósticos/economia , Técnicas e Procedimentos Diagnósticos/estatística & dados numéricos , Custos de Medicamentos/estatística & dados numéricos , Nutrição Enteral/economia , Nutrição Enteral/estatística & dados numéricos , Feminino , Estado Funcional , Hospitais para Doentes Terminais , Mortalidade Hospitalar , Humanos , Tempo de Internação/estatística & dados numéricos , Expectativa de Vida , Masculino , Pessoa de Meia-Idade , Neoplasias/diagnóstico , Neoplasias/economia , Países Baixos , Alta do Paciente , Pontuação de Propensão , Estudos Prospectivos , Respiração Artificial/economia , Respiração Artificial/estatística & dados numéricos , Taxa de Sobrevida
4.
Sensors (Basel) ; 20(6)2020 Mar 18.
Artigo em Inglês | MEDLINE | ID: mdl-32197330

RESUMO

Traditional motion capture systems are the current standard in the assessment of knee joint kinematics. These systems are, however, very costly, complex to handle, and, in some conditions, fail to estimate the varus/valgus and internal/external rotation accurately due to the camera setup. This paper presents a novel and comprehensive method to infer the full relative motion of the knee joint, including the flexion/extension, varus/valgus, and internal/external rotation, using only low cost inertial measurement units (IMU) connected to the upper and lower leg. Furthermore, sensors can be placed arbitrarily and only require a short calibration, making it an easy-to-use and portable clinical analysis tool. The presented method yields both adequate results and displays the uncertainty band on those results to the user. The proposed method is based on an fixed interval smoother relying on a simple dynamic model of the legs and judicially chosen constraints to estimate the rigid body motion of the leg segments in a world reference frame. In this pilot study, benchmarking of the method on a calibrated robotic manipulator, serving as leg analogue, and comparison with camera-based techniques confirm the method's accurateness as an easy-to-implement, low-cost clinical tool.


Assuntos
Fenômenos Biomecânicos/fisiologia , Técnicas Biossensoriais , Técnicas e Procedimentos Diagnósticos , Articulação do Joelho/fisiologia , Amplitude de Movimento Articular/fisiologia , Técnicas Biossensoriais/economia , Técnicas Biossensoriais/instrumentação , Técnicas Biossensoriais/métodos , Custos e Análise de Custo , Técnicas e Procedimentos Diagnósticos/economia , Técnicas e Procedimentos Diagnósticos/instrumentação , Humanos , Modelos Teóricos , Estatística como Assunto/instrumentação , Estatística como Assunto/métodos , Pesos e Medidas/instrumentação
5.
Ann Allergy Asthma Immunol ; 123(5): 468-475, 2019 11.
Artigo em Inglês | MEDLINE | ID: mdl-31419490

RESUMO

BACKGROUND: Nonprescription of penicillin-containing antibiotics in patients diagnosed with penicillin allergy is associated with morbidity and mortality. Adverse reactions to penicillins comprise type A and B reactions. OBJECTIVE: To assess the feasibility of penicillin allergy evaluation without penicillin skin testing (PST) for adult patients with type B reactions and the health and economic benefits of this process. METHODS: Inpatients at an Australian tertiary hospital between April 1, 2017, and April 30, 2018, with a diagnosis of type B penicillin allergy, requiring a penicillin-containing antibiotic for treatment, were included. All patients underwent clinical history review, PST, and drug provocation testing (DPT). RESULTS: Seventy-one patients were enrolled. Sixty-three reported a history of type B or unknown adverse reactions. No patients had a history of anaphylaxis requiring intubation or epinephrine within the last 10 years or a history suggesting Gell and Coombs type 2, 3, or 4 (severe) hypersensitivity reaction. Seven did not complete DPT because the treating team used a ß-lactam antibiotic other than amoxicillin. Fifty-four of 56 remaining patients (96%) completed 3-day DPT to amoxicillin with no adverse reaction. Two experienced mild cutaneous reactions. Penicillin allergy evaluation was significantly associated with reduced length of stay, reduced hospital expenditure on bed and second-line antibiotics, and reduced readmission rates. CONCLUSION: Penicillin allergy evaluation with DPT without PST may be feasible for all adult patients with a reported history of type B reactions to penicillins who do not have a history of anaphylaxis within the last 10 years or a type 2, 3, or 4 (severe) hypersensitivity reaction.


Assuntos
Amoxicilina/efeitos adversos , Antibacterianos/efeitos adversos , Hipersensibilidade a Drogas/diagnóstico , Idoso , Austrália , Técnicas e Procedimentos Diagnósticos/economia , Hipersensibilidade a Drogas/economia , Feminino , Humanos , Pacientes Internados , Masculino , Centros de Atenção Terciária
6.
Pharm Stat ; 18(5): 533-545, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31069929

RESUMO

Cost and burden of diagnostic testing may be reduced if fewer tests can be applied. Sequential testing involves selecting a sequence of tests, but only administering subsequent tests dependent on results of previous tests. This research provides guidance to choosing between single tests or the believe the positive (BP) and believe the negative (BN) sequential testing strategies, using accuracy (as measured by the Youden Index) as the primary determinant. Approximately 75% of the parameter combinations examined resulted in either BP or BN being recommended based on a higher accuracy at the optimal point. In about half of the scenarios BP was preferred, and the other half, BN, with the choice often a function of the value of the ratio of standard deviations of those without and with disease (b). Large values of b for the first test of the sequence tended to be associated with preference for BN as opposed to BP, while small values of b appear to favor BP. When there was no preference between sequences and/or single tests based on the Youden Index, cost of the sequence was considered. In this case, disease prevalence plays a large role in the selection of strategies, with lower values favoring BN and sometimes higher values favoring BP. The cost threshold for the sequential strategy to be preferred over a single, more accurate test, was often quite high. It appears that while sequential strategies most often increase diagnostic accuracy over a single test, sequential strategies are not always preferred.


Assuntos
Técnicas e Procedimentos Diagnósticos , Testes Diagnósticos de Rotina/métodos , Análise Custo-Benefício , Técnicas e Procedimentos Diagnósticos/economia , Testes Diagnósticos de Rotina/economia , Humanos , Reprodutibilidade dos Testes
7.
J Pak Med Assoc ; 69(Suppl 2)(6): S131-S136, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-31369543

RESUMO

OBJECTIVE: Tuberculosis (TB), along with the human immunodeficiency virus, is one of the leading causes of death from infectious diseases. Its prevalence has rendered the treatment of drug-resistant TB a major public health problem that threatens the progress made in TB care and control worldwide. Our objectives were to conduct a systematic review of the cost-effectiveness of treatment for multidrug-resistant and extensively drug-resistant TB (MDR-TB/XDR-TB) and to synthesise available data from scientific research. METHODS: Using English keywords, we searched for papers over reputable databases, such as Scopus, PubMed, Cochrane and Google Scholar, from Jan. 23 to Mar. 23, 2019. RESULTS: The search and screening yielded 13 articles, whose results were extracted and reviewed to draw conclusions on the cost-effectiveness of MDR-TB/XDR-TB treatment. The data extraction table used to cull and categorise the results comprised the characteristics of a given study, as well as its objectives, the perspectives used to guide the investigation, methods and results (outcome, sensitivity analysis). The measured outcome was the incremental cost-effectiveness ratio. CONCLUSIONS: The review indicated that MDR -TB/XDR-TB treatment can be very cost-effective in countries with low to high incomes, regardless of whether minimal or considerable disease burdens exist.


Assuntos
Antituberculosos/uso terapêutico , Tuberculose Extensivamente Resistente a Medicamentos/terapia , Hospitalização/economia , Antituberculosos/economia , Análise Custo-Benefício , Países em Desenvolvimento , Técnicas e Procedimentos Diagnósticos/economia , Eficiência , Tuberculose Extensivamente Resistente a Medicamentos/economia , Serviços de Alimentação/economia , Humanos , Anos de Vida Ajustados por Qualidade de Vida , Meios de Transporte/economia , Tuberculose Resistente a Múltiplos Medicamentos/economia , Tuberculose Resistente a Múltiplos Medicamentos/terapia
8.
Allergy ; 73(8): 1609-1621, 2018 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-29319184

RESUMO

BACKGROUND: Component-resolved diagnostics (CRD) are promising tools for diagnosing food allergy, offering the potential to determine specific phenotypes and to develop patient-tailored risk profiles. Nevertheless, the diagnostic accuracy of these tests varies across studies; thus, their clinical utility remains unclear. Therefore, we synthesized the evidence from studies investigating the diagnostic accuracy, risk assessment ability, and cost-effectiveness of CRD for food allergy. METHODS: We systematically searched 10 electronic databases and four clinical trial registries for studies published from January 2000 to February 2017. The quality of included studies was assessed using QUADAS-2. Due to heterogeneity, we narratively synthesized the evidence. RESULTS: Eleven studies met inclusion criteria, altogether recruiting 1098 participants. The food allergies investigated were cow's milk, hen's egg, peanut, hazelnut, and shrimp. The components with the highest diagnostic accuracy for each allergen, along with their sensitivity-specificity pairs, were as follows: Bos d 4 for cow's milk (62.0% and 87.5%), Gal d 1 for hen's egg (84.2% and 89.8% for heated egg, and 60.6% and 97.1% for raw egg), Ara h 6 for peanut (94.9% and 95.1%), Cor a 14 for hazelnut (100% and 93.8%), and Lit v 1 for shrimp (82.8% and 56.3%) allergy. CONCLUSION: Selected components of cow's milk, hen's egg, peanut, hazelnut, and shrimp allergen showed high specificity, but lower sensitivity. However, few studies exist for each component, and studies vary widely regarding the cutoff values used, making it challenging to synthesize findings across studies. Further research is needed to determine clinically appropriate cutoff values, risk assessment abilities, and cost-effectiveness of CRD approaches.


Assuntos
Técnicas e Procedimentos Diagnósticos/economia , Hipersensibilidade Alimentar/diagnóstico , Animais , Arachis/efeitos adversos , Corylus/efeitos adversos , Análise Custo-Benefício , Ovos/efeitos adversos , Hipersensibilidade Alimentar/imunologia , Humanos , Leite/efeitos adversos , Penaeidae/imunologia , Medição de Risco
9.
Circ J ; 82(10): 2462-2469, 2018 09 25.
Artigo em Inglês | MEDLINE | ID: mdl-30058605

RESUMO

In 2010, more than 200 million people were afflicted with peripheral arterial disease (PAD). Because it is atherosclerotic in etiology, it is not surprising that PAD is a leading cause of cardiovascular morbidity. Cardiovascular disease (CVD) risk can be decreased if ambulatory physical function is improved. However, physical function is limited by a mismatch between oxygen supply and demand in the legs, which results in exertional pain, leg weakness, and balance problems. Therefore, a key factor for improving physical function, and decreasing CVD outcomes, is ensuring oxygen supply meets the oxygen demand. The purpose of this review is to highlight and evaluate practical and minimally invasive tools for assessing PAD etiology, with a specific focus on tools suited to studies focusing on improving physical function and CVD outcomes. Specifically, the macrovascular, microvascular, and skeletal muscle pathology of PAD is briefly outlined. Subsequently, the tools for assessing each of these components is discussed, including, where available, the evidence to contextualize these tools to PAD pathology as well as physical function and CVD outcomes. The goal of this review is to guide researchers to the appropriate tools with respect to their methodological design.


Assuntos
Técnicas e Procedimentos Diagnósticos , Doença Arterial Periférica , Vasos Sanguíneos/patologia , Técnicas e Procedimentos Diagnósticos/economia , Técnicas e Procedimentos Diagnósticos/instrumentação , Técnicas e Procedimentos Diagnósticos/tendências , Humanos , Músculo Esquelético/metabolismo , Doença Arterial Periférica/diagnóstico , Doença Arterial Periférica/etiologia , Doença Arterial Periférica/fisiopatologia
10.
Int J Technol Assess Health Care ; 34(4): 419-424, 2018 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30025548

RESUMO

OBJECTIVES: Large numbers of new medical devices and diagnostics are developed and health services need to identify which ones offer real advantages. The National Institute for Health and Care Excellence (NICE) has introduced a system for assessing technologies that are often notified by companies, based on claims made for their benefits to patients, the National Health Service, and the environment. METHODS: Detailed scrutiny of claims made for the benefits of products and the corresponding evidence, seeking associations between these and the selection of products for full evaluation to produce NICE guidance. RESULTS: Between 2009 and 2015 a NICE committee considered 169 technologies, of which it selected 74 (44 percent) for full evaluation, based on the claims of benefit and the evidence available. An average of 7.5 claims were made per technology; the total number did not influence selection but presence of studies supporting all the claims (p < .001) or any of the claims (p < .05) had a positive influence, as did claims for quicker patient recovery (p < .001). A greater number of studies to support the claims made selection more likely (p < .001), as did cohort studies (p < .05) and surveys (p < .05) but, unexpectedly, not randomized trials. The Medical Device Directive class had no influence. CONCLUSIONS: This study presents categories of claims that may be useful to those developing new products and to others engaged in health technology assessment. It illustrates the importance of relevant evidence and of having a clear vision of the place of new products in care pathways from an early stage.


Assuntos
Técnicas e Procedimentos Diagnósticos/normas , Equipamentos e Provisões/normas , Medicina Estatal/organização & administração , Avaliação da Tecnologia Biomédica/organização & administração , Redução de Custos , Análise Custo-Benefício , Técnicas e Procedimentos Diagnósticos/economia , Equipamentos e Provisões/economia , Humanos , Segurança do Paciente , Reprodutibilidade dos Testes , Medicina Estatal/normas , Avaliação da Tecnologia Biomédica/normas , Reino Unido
11.
Trop Med Int Health ; 22(1): 21-31, 2017 01.
Artigo em Inglês | MEDLINE | ID: mdl-27770602

RESUMO

OBJECTIVE: The aim of this study was to estimate the incremental budget impact (IBI) of a rapid diagnostic test to detect G6PDd in male patients infected with Plasmodium vivax in the Brazilian Amazon, as compared with the routine protocol recommended in Brazil which does not include G6PDd testing. METHODS: The budget impact analysis was performed from the perspective of the Brazilian health system, in the Brazilian Amazon for the years 2013, 2014 and 2015. The analysis used a decision model to compare two scenarios: the first consisting of the routine recommended in Brazil which does not include prior diagnosis of dG6PD, and the second based on the use of RDT CareStart™ G6PD (CS-G6PD) in all male subjects diagnosed with vivax malaria. The expected implementation of the diagnostic test was 30% in the first year, 70% the second year and 100% in the third year. RESULTS: The analysis identified negative IBIs which were progressively smaller in the 3 years evaluated. The sensitivity analysis showed that the uncertainties associated with the analytical model did not significantly affect the results. CONCLUSION: A strategy based on the use of CS-G6PD would result in better use of public resources in the Brazilian Amazon.


Assuntos
Técnicas e Procedimentos Diagnósticos/economia , Deficiência de Glucosefosfato Desidrogenase/diagnóstico , Deficiência de Glucosefosfato Desidrogenase/epidemiologia , Malária Vivax/epidemiologia , Programas de Rastreamento/economia , Antimaláricos/uso terapêutico , Brasil/epidemiologia , Orçamentos , Técnicas de Apoio para a Decisão , Humanos , Malária Vivax/tratamento farmacológico , Masculino , Modelos Econométricos , Primaquina/uso terapêutico , Fatores de Tempo
12.
Value Health ; 20(8): 1210-1215, 2017 09.
Artigo em Inglês | MEDLINE | ID: mdl-28964454

RESUMO

BACKGROUND: Concerns about pathology testing such as the value provided by new tests and the potential for inappropriate utilization have led to a greater need to assess costs and benefits. Economic evaluations are a formal method of analyzing costs and benefits, yet for pathology tests, questions remain about the scope and quality of the economic evidence. OBJECTIVE: To describe the extent and quality of published evidence provided by economic evaluations of pathology tests from 2010 to 2015. METHODS: Economic evaluations relating to pathology tests from 2010 to 2015 were reviewed. Eight databases were searched for published studies, and details recorded for the country, clinical focus, type of testing, and consideration of sensitivity, specificity, and false test results. The reporting quality of studies was assessed using the Consolidated Health Economic Evaluation Reporting Standards checklist and cost-effectiveness ratios were analyzed for publication bias. RESULTS: We found 356 economic evaluations of pathology tests, most of which regarded developed countries. The most common economic evaluations were cost-utility analyses and the most common clinical focus was infectious diseases. More than half of the studies considered sensitivity and specificity, but few studies considered the impact of false test results. The average Consolidated Health Economic Evaluation Reporting Standards checklist score was 17 out of 24. Cost-utility ratios were commonly less than $10,000/quality-adjusted life-year or more than $200,000/quality-adjusted life-year. CONCLUSIONS: The number of economic evaluations of pathology tests has increased in recent years, but the rate of increase has plateaued. Furthermore, the quality of studies in the past 5 years was highly variable, and there is some question of publication bias in reporting cost-effectiveness ratios.


Assuntos
Técnicas e Procedimentos Diagnósticos/economia , Patologia Clínica/métodos , Anos de Vida Ajustados por Qualidade de Vida , Análise Custo-Benefício , Reações Falso-Positivas , Humanos , Patologia Clínica/economia , Projetos de Pesquisa , Sensibilidade e Especificidade
13.
Health Res Policy Syst ; 15(1): 89, 2017 Oct 17.
Artigo em Inglês | MEDLINE | ID: mdl-29041939

RESUMO

This article examines the current status and most important changes over time to the legislative framework on the health technology assessment-informed decision-making process on diagnostic and therapeutic 'methods' in Germany. The relevant information was obtained through documentary analysis covering the period 1990 to 2017. The findings show that, even if the outpatient care sector appears to be much more regulated than the inpatient sector (based on a strict separation of the two care settings), developments in Germany have led to a more tightened assessment framework, making the use of evidence a firm component in the decision-making process. Nevertheless, a comprehensive approach for a systematic assessment of diagnostic and therapeutic 'methods' still does not exist. Readjustments of current regulations in Germany, such as the existing 'Verbotsvorbehalt' (i.e. provision of a diagnostic and therapeutic 'method' possible unless actively delisted) in the inpatient care setting, as well as further developments at the European level are needed in order to create a system that ensures early access to innovation under controlled study conditions.


Assuntos
Tomada de Decisões , Técnicas e Procedimentos Diagnósticos/normas , Avaliação da Tecnologia Biomédica/organização & administração , Análise Custo-Benefício , Técnicas e Procedimentos Diagnósticos/economia , Medicina Baseada em Evidências , Alemanha , Humanos , Avaliação da Tecnologia Biomédica/economia , Avaliação da Tecnologia Biomédica/legislação & jurisprudência , Avaliação da Tecnologia Biomédica/normas
14.
Int J Technol Assess Health Care ; 32(1-2): 46-53, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-27002226

RESUMO

OBJECTIVES: There is little specific guidance on performing an early cost-effectiveness analysis (CEA) of medical tests. We developed a framework with general steps and applied it to two cases. METHODS: Step 1 is to narrow down the scope of analysis by defining the test's application, target population, outcome measures, and investigating current test strategies and test strategies if the new test were available. Step 2 is to collect evidence on the current test strategy. Step 3 is to develop a conceptual model of the current and new test strategies. Step 4 is to conduct the early-CEA by evaluating the potential (cost-)effectiveness of the new test in clinical practice. Step 5 involves a decision about the further development of the test. RESULTS: The first case illustrated the impact of varying the test performance on the headroom (maximum possible price) of an add-on test for patients with an intermediate-risk of having rheumatoid arthritis. Analyses showed that the headroom is particularly dependent on test performance. The second case estimated the minimum performance of a confirmatory imaging test to predict individual stroke risk. Different combinations of sensitivity and specificity were found to be cost-effective; if these combinations are attainable, the medical test developer can feel more confident about the value of further development of the test. CONCLUSIONS: A well-designed early-CEA methodology can improve the ability to develop (cost-)effective medical tests in an efficient manner. Early-CEAs should continuously integrate insights and evidence that arise through feedback, which may convince developers to return to earlier steps.


Assuntos
Análise Custo-Benefício/organização & administração , Técnicas e Procedimentos Diagnósticos/economia , Avaliação da Tecnologia Biomédica/organização & administração , Artrite Reumatoide/diagnóstico , Tomada de Decisões , Humanos , Modelos Econométricos , Recidiva , Sensibilidade e Especificidade , Acidente Vascular Cerebral/fisiopatologia , Fatores de Tempo
16.
Fed Regist ; 81(121): 41035-101, 2016 Jun 23.
Artigo em Inglês | MEDLINE | ID: mdl-27373013

RESUMO

This final rule implements requirements of section 216 of the Protecting Access to Medicare Act of 2014 (PAMA), which significantly revises the Medicare payment system for clinical diagnostic laboratory tests. This final rule also announces an implementation date of January 1, 2018 for the private payor rate-based fee schedule required by PAMA.


Assuntos
Técnicas e Procedimentos Diagnósticos/economia , Tabela de Remuneração de Serviços/economia , Tabela de Remuneração de Serviços/legislação & jurisprudência , Medicare/economia , Medicare/legislação & jurisprudência , Sistema de Pagamento Prospectivo/economia , Sistema de Pagamento Prospectivo/legislação & jurisprudência , Humanos , Estados Unidos
18.
Value Health ; 18(5): 721-34, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-26297101

RESUMO

BACKGROUND: Economic evaluations provide a unique opportunity to identify the optimal strategies for the diagnosis and management of traumatic brain injury (TBI), for which uncertainty is common and the economic burden is substantial. OBJECTIVE: The objective of this study was to systematically review and examine the quality of contemporary economic evaluations in the diagnosis and management of TBI. METHODS: Two reviewers independently searched MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials, NHS Economic Evaluation Database, Health Technology Assessment Database, EconLit, and the Tufts CEA Registry for comparative economic evaluations published from 2000 onward (last updated on August 30, 2013). Data on methods, results, and quality were abstracted in duplicate. The results were summarized quantitatively and qualitatively. RESULTS: Of 3539 citations, 24 economic evaluations met our inclusion criteria. Nine were cost-utility, five were cost-effectiveness, three were cost-minimization, and seven were cost-consequences analyses. Only six studies were of high quality. Current evidence from high-quality studies suggests the economic attractiveness of the following strategies: a low medical threshold for computed tomography (CT) scanning of asymptomatic infants with possible inflicted TBI, selective CT scanning of adults with mild TBI as per the Canadian CT Head Rule, management of severe TBI according to the Brain Trauma Foundation guidelines, management of TBI in dedicated neurocritical care units, and early transfer of patients with TBI with nonsurgical lesions to neuroscience centers. CONCLUSIONS: Threshold-guided CT scanning, adherence to Brain Trauma Foundation guidelines, and care for patients with TBI, including those with nonsurgical lesions, in specialized settings appear to be economically attractive strategies.


Assuntos
Lesões Encefálicas , Técnicas e Procedimentos Diagnósticos/economia , Medicina Baseada em Evidências/economia , Custos de Cuidados de Saúde , Fatores Etários , Lesões Encefálicas/diagnóstico , Lesões Encefálicas/economia , Lesões Encefálicas/terapia , Redução de Custos , Análise Custo-Benefício , Técnicas de Apoio para a Decisão , Técnicas e Procedimentos Diagnósticos/normas , Humanos , Modelos Econômicos , Valor Preditivo dos Testes , Tomografia Computadorizada por Raios X , Resultado do Tratamento
19.
Value Health ; 18(5): 587-96, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-26297086

RESUMO

BACKGROUND: Compared with new technologies, the redesign of care processes is generally considered less attractive to improve patient outcomes. Nevertheless, it might result in better patient outcomes, without further increasing costs. Because early initiation of treatment is of vital importance for patients with head and neck cancer (HNC), these care processes were redesigned. OBJECTIVES: This study aimed to assess patient outcomes and cost-effectiveness of this redesign. METHODS: An economic (Markov) model was constructed to evaluate the biopsy process of suspicious lesion under local instead of general anesthesia, and combining computed tomography and positron emission tomography for diagnostics and radiotherapy planning. Patients treated for HNC were included in the model stratified by disease location (larynx, oropharynx, hypopharynx, and oral cavity) and stage (I-II and III-IV). Probabilistic sensitivity analyses were performed. RESULTS: Waiting time before treatment start reduced from 5 to 22 days for the included patient groups, resulting in 0.13 to 0.66 additional quality-adjusted life-years. The new workflow was cost-effective for all the included patient groups, using a ceiling ratio of €80,000 or €20,000. For patients treated for tumors located at the larynx and oral cavity, the new workflow resulted in additional quality-adjusted life-years, and costs decreased compared with the regular workflow. The health care payer benefited €14.1 million and €91.5 million, respectively, when individual net monetary benefits were extrapolated to an organizational level and a national level. CONCLUSIONS: The redesigned care process reduced the waiting time for the treatment of patients with HNC and proved cost-effective. Because care improved, implementation on a wider scale should be considered.


Assuntos
Técnicas e Procedimentos Diagnósticos/economia , Neoplasias de Cabeça e Pescoço/diagnóstico , Neoplasias de Cabeça e Pescoço/economia , Custos de Cuidados de Saúde , Avaliação de Processos em Cuidados de Saúde/economia , Tempo para o Tratamento/economia , Listas de Espera , Anestesia Geral/economia , Anestesia Local/economia , Biópsia/economia , Análise Custo-Benefício , Neoplasias de Cabeça e Pescoço/terapia , Humanos , Cadeias de Markov , Modelos Econômicos , Imagem Multimodal/economia , Estadiamento de Neoplasias , Tomografia por Emissão de Pósitrons/economia , Valor Preditivo dos Testes , Avaliação de Programas e Projetos de Saúde , Anos de Vida Ajustados por Qualidade de Vida , Fatores de Tempo , Tomografia Computadorizada por Raios X/economia , Resultado do Tratamento , Fluxo de Trabalho
20.
Clin Chem Lab Med ; 53(7): 989-93, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-26030792

RESUMO

Recently, spectacular advances in diagnostic technologies, genomics, etc. offer unprecedented opportunities for widespread testing of asymptomatic individuals, in the hope that this testing will unravel early disease signs which could lead to preventative or more effective therapeutic measures. In particular, one commercial organization, Theranos, promises to revolutionize diagnostics by offering multi-analyte testing at low prices in commercial outlets, thus challenging the current paradigm of targeted and centralized diagnostic testing. In this paper, I analyze the Theranos technology and their promises, and contrast this information with the currently used technologies, to show that most of the company's claims are exaggerated. While it remains to be seen if this technology will revolutionize diagnostics, in this Opinion Paper, I also draw attention of associated issues, such as self-testing and self-interpretation of results, over-testing, over-diagnosis and over-treatment, along with their associated harms. As the public is bombarded daily with new and revolutionary health-related advances, it is time to balance the enthusiasm of the seemingly obvious huge gains, by also explaining the associated possible harms.


Assuntos
Técnicas e Procedimentos Diagnósticos , Técnicas e Procedimentos Diagnósticos/economia , Humanos , Fatores de Tempo
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