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1.
Clin Lab ; 64(7): 1105-1112, 2018 Jul 01.
Article in English | MEDLINE | ID: mdl-30146832

ABSTRACT

BACKGROUND: The use of point-of-care testing (POCT) in different clinical applications is justified by the fact that the time to release the result is shortened, allowing the physician to define the diagnosis and most appropriate therapy in a shorter time. However, the negative aspects must also be highlighted and studied so that we can move forward with the use of these devices. These negative aspects include greater analytical imprecision compared to laboratory automation, the variability between different equipment from different manufacturers, the risk of inappropriate use, a low level of global regulation, higher costs compared with laboratory testing and cost ineffectiveness in terms of health care. Methods and. RESULTS: This review presents some clinical applications of POCT in different scenarios, such as for diabetes mellitus, infectious diseases, pediatrics, and chronic kidney disease, among others. CONCLUSIONS: We hope to see a global consensus on an acceptable quality standard for performing POCT that is adaptable, practical, and cost effective in primary care settings, ensuring patient safety, and minimizing the risk of harm.


Subject(s)
Point-of-Care Systems/standards , Point-of-Care Testing/standards , Communicable Diseases/diagnosis , Communicable Diseases/therapy , Cost-Benefit Analysis , Diabetes Mellitus/diagnosis , Diabetes Mellitus/therapy , Humans , Point-of-Care Systems/economics , Point-of-Care Systems/statistics & numerical data , Point-of-Care Testing/economics , Point-of-Care Testing/statistics & numerical data , Renal Insufficiency, Chronic/diagnosis , Renal Insufficiency, Chronic/therapy
2.
Clin Lab ; 64(1): 1-9, 2018 Jan 01.
Article in English | MEDLINE | ID: mdl-29479878

ABSTRACT

Point-of-Care Testing (POCT) has been highlighted in the health care sector in recent decades. On the other hand, due to its low demand, POCT is at a disadvantage compared to conventional equipment, since its cost is inversely proportional to the volume of use. In addition, for the implementation of POCT to succeed, it is essential to rely on the work of a multidisciplinary team. The awareness of health professionals of the importance of each step is perhaps the critical success factor. The trend towards the continuous advancement of the use of POCT and the great potential of its contributions reinforce the need to implement quality management tools, including performance indicators, to ensure their results. This review presents some advantages and disadvantages concerning POCT and the real need to use it. A worldwide call for the availability of easy-to-use health technologies that are increasingly closer to the final user is one of the main reasons for this focus.


Subject(s)
Clinical Laboratory Techniques/standards , Guidelines as Topic/standards , Point-of-Care Systems/standards , Point-of-Care Testing/standards , Clinical Laboratory Techniques/economics , Clinical Laboratory Techniques/methods , Cost-Benefit Analysis , Humans , Point-of-Care Systems/economics , Point-of-Care Testing/economics , Reproducibility of Results
3.
Rev. bras. hematol. hemoter ; 27(1): 31-36, jan.-mar. 2005. ilus, graf
Article in Portuguese | LILACS | ID: lil-414615

ABSTRACT

O Mieloma Mútiplo é uma doença de evolução heterogênea, na qual a maioria dos pacientes recai muito precocemente após o tratamento. Nesse contexto, o objetivo principal deste trabalho é relatar diferentes estratégias de análise do mieloma por citometria de fluxo e sua importância na associação com citogenética no diagnóstico de doença residual. Entre 2.450 casos de doenças onco-hematológicas estudados, de setembro de 1993 a agosto de 2004, foram diagnosticados 50 (2,0 por cento) Mieloma Múltiplo. Foram feitas análises morfológicas e, até o ano de 2000, as imunofenotipagens foram realizadas no citômetro de fluxo XL-MCL (Coulter) pela estratégia tamanho/complexidade, utilizando os anticorpos monoclonais CD19, CD20, CD38, CD45, CD56, HLA-DR, kappa e lambda de superfície e intracitoplasmáticas. A partir de 2001 passaram-se a utilizar painéis seqüenciais através do histograma CD138/Complexidade e anticorpos monoclonais CD19, CD38, CD56, CD117, kappa e lambda intracitoplasmáticas. Mais recentemente foram incluídos no painel os anticorpos CD45, HLA-DR e CD33. A análise do DNA foi realizada por citometria com auxílio do programa Multicycle em nove amostras, sendo que sete apresentaram população aneuplóide. O cariótipo com banda G foi realizado em 25 casos, e a pesquisa de deleção do 13q por FISH em 15. Alterações cromossômicas foram encontradas em 4 casos, sendo duas deleções de 13q confirmadas por FISH. A mudança na estratégia de gates associada à citogenética e ao estudo da cinética do ciclo do DNA permitem melhor identificação de células plasmáticas anômalas, avaliação do prognóstico e detecção de doença residual.


Subject(s)
Male , Female , Middle Aged , Humans , Cytogenetics , Flow Cytometry , Multiple Myeloma/diagnosis , Multiple Myeloma , Neoplasm, Residual
4.
LAES/HAES ; 13(73): 42,44,46,passim, out.-nov. 1991. ilus
Article in Portuguese | LILACS | ID: lil-126927

ABSTRACT

Os autores comentam a utilizaçäo da fluxocitometria no laboratório clínico e descrevem sua aplicaçäo, quando associada à reaçäo pela peroxidase, na contagem diferencial automatizada. As diferentes fases do processo, baseadas no Sistema H1 da Technicon, säo relatadas e os novos índices hematológicos obtidos através desta técnologia discutidos. Concluem que, apesar de seu alto custo, sua utilizaçäo oferece vantagens na triagem de hemogramas normais e na melhor análise de algumas doenças hematológicas


Subject(s)
Humans , Flow Cytometry , Medical Records Systems, Computerized , Hematologic Tests/methods , Hematologic Diseases/diagnosis , Hemoglobins/analysis , Lasers , Leukocyte Count , Platelet Count
5.
Rev. bras. patol. clín ; 25(3): 85-94, jul.-set. 1989. ilus
Article in Portuguese | LILACS | ID: lil-79699

ABSTRACT

Os autores comentam a utilizaçäo da fluxocitometria no laboratório clínico e descrevem sua aplicaçäo, quando associada a reaçäo pela peroxidase na contagem diferencial automatizada. As diferentes fases do processo, baseadas no sistema H1 da Technicon, säo relatadas e os novos índices hematológicos obtidos através desta tecnologia discutidosConcluem que, apesar de seu alto custo, sua utilizaçäo oferece vantagens na triagem de hemogramas normais e na melhor análise de algumas doenças hematológicas


Subject(s)
Flow Cytometry
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