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2.
Article in Portuguese | LILACS | ID: biblio-1552136

ABSTRACT

A COVID-19 é uma doença respiratória aguda provocada pela infecção do vírus SARS-CoV-2, que pode causar uma grave insuficiência respiratória hipoxêmica, complicações e mortes, principalmente na população com condições crônicas de saúde. Os mecanismos pelos quais a obesidade pode aumentar a gravidade da COVID-19 incluem mecanismos físicos, inflamação crônica e uma função imunológica prejudicada. Além disso, o índice de massa corporal elevado é um fator de risco para várias condições médicas que têm sido sugeridas para aumentar o risco de gravidade da COVID-19. Objetivo: analisar a associação entre o índice de massa corporal e desfechos clínicos dos casos confirmados de COVID-19. Metodologia: Estudo transversal, com coleta de dados de prontuários, conduzido de março de 2020 a dezembro 2021. Foram analisados os registros de prontuários, exames bioquímicos e de imagem de pacientes internados com COVID-19 em três hospitais da cidade de Francisco Beltrão (PR). As variáveis analisadas foram o diagnóstico nutricional, idade, sexo, necessidade de internação em UTI, comorbidades, dias de hospitalização, complicações, exames laboratoriais e desfecho. Os critérios para inclusão no estudo foram, pacientes hospitalizados com diagnóstico para COVID-19, com presença de diagnóstico nutricional relatado. Resultados: No ano de 2020 foram analisados 292 prontuários e no ano de 2021 foram 860 prontuários. Destes, somente 413 possuíam diagnóstico nutricional, sendo assim incluídos no presente estudo. Foram classificados como peso normal 78 (18,9%), com sobrepeso 153 (37%)e como obeso 182 (44,1%) participantes. A maior prevalência de obesidade foi encontrada no sexo feminino (52,5%), portadores de diabetes (27,6%), pacientes com estado geral comprometido (67,9%), que apresentaram complicações pulmonares (54,5%) e arritmias (23%). A média de idade encontrada em pacientes com obesidade foi mais jovem (55,54) em comparação com os classificados com sobrepeso (59,08) e normal (62,51). Observou-se que quanto maior o IMC menor foram os valores encontrados para idade (rho = -0,190), leucócitos (rho = -0,109), ureia (rho = -0,145) e D-dímero (rho = -0,155). Conclusão: Este estudo fornece evidências de que o sobrepeso e/ou obesidade então associadas a um pior quadro clínico durante a internação dos pacientes com COVID-19. Em relação a frequência de óbito, não houve diferença estatística em relação ao diagnóstico nutricional.


COVID-19 is an acute respiratory disease caused by SARS-CoV-2 virus infection, which can cause severe hypoxemic respiratory failure, complications, and deaths, especially in the population with chronic health conditions. The mechanisms by which obesity may increase the severity of COVID-19 include physical mechanisms, chronic inflammation, and impaired immune function. In addition, high body mass index is a risk factor for several medical conditions that have been suggested to increase the risk of COVID-19 severity. Objective: to analyze the association between body mass index and clinical outcomes of confirmed cases of COVID-19. Methodology: Cross-sectional study, with data collection from medical records, conducted from March 2020 to December 2021. The records of medical records, biochemical and imaging tests of patients hospitalized with COVID-19 in three hospitals in the city of Francisco Beltrão (PR) were analyzed. The variables analyzed were nutritional diagnosis, age, gender, need for ICU admission, comorbidities, days of hospitalization, complications, laboratory tests and outcome. The inclusion criteria for the study were, hospitalized patients with diagnosis for COVID-19, with presence of nutritional diagnosis reported. Results: In the year 2020, 292 medical records were analyzed and in the year 2021 there were 860 medical records. Of these, only 413 had nutritional diagnosis, thus being included in this study. Were classified as normal weight 78 (18.9%), overweight 153 (37%), and obese 182 (44.1%) participants. The highest prevalence of obesity was found in females (52.5%), patients with diabetes (27.6%), patients with impaired general condition (67.9%), who presented pulmonary complications (54.5%) and arrhythmias (23%). The mean age found in obese patients was younger (55.54) compared to those classified as overweight (59.08) and normal (62.51). It was observed that the higher the BMI the lower were the values found for age (rho = -0.190), leukocytes (rho = -0.109), urea (rho = -0.145) and D-dimer (rho = -0.155). Conclusion: This study provides evidence that overweight and/or obesity then associated with a worse clinical picture during hospitalization of patients with COVID-19. Regarding the frequency of death, there was no statistical difference in relation to nutritional diagnosis.


COVID-19 es una enfermedad respiratoria aguda causada por la infección por el virus SARS-CoV-2, que puede provocar insuficiencia respiratoria hipoxémica grave, complicaciones y muertes, especialmente en poblaciones con enfermedades crónicas. Los mecanismos por los cuales la obesidad puede aumentar la gravedad de la COVID-19 incluyen mecanismos físicos, inflamación crónica y función inmune deteriorada. Además, un índice de masa corporal alto es un factor de riesgo para varias afecciones médicas que, según se ha sugerido, aumentan el riesgo de gravedad del COVID-19. Objetivo: analizar la asociación entre el índice de masa corporal y los resultados clínicos de casos confirmados de COVID-19. Metodología: Estudio transversal, con recolección de datos de historias clínicas, realizado de marzo de 2020 a diciembre de 2021. Se analizaron historias clínicas, exámenes bioquímicos y de imagen de pacientes hospitalizados con COVID-19 en tres hospitales de la ciudad de Francisco Beltrão (PR). Las variables analizadas fueron diagnóstico nutricional, edad, sexo, necesidad de ingreso a UCI, comorbilidades, días de internación, complicaciones, exámenes de laboratorio y evolución. Los criterios de inclusión en el estudio fueron pacientes hospitalizados con diagnóstico de COVID-19, con presencia de diagnóstico nutricional informado. Resultados: En 2020 se analizaron 292 historias clínicas y en 2021 se analizaron 860 historias clínicas. De ellos, sólo 413 tenían diagnóstico nutricional, por lo que fueron incluidos en el presente estudio. 78 (18,9%) participantes fueron clasificados como normopeso, 153 (37%) como sobrepeso y 182 (44,1%) como obesidad. La mayor prevalencia de obesidad se encontró en el sexo femenino (52,5%), pacientes con diabetes (27,6%), pacientes con estado general comprometido (67,9%), quienes presentaron complicaciones pulmonares (54,5%) y arritmias (23%). La edad promedio encontrada en los pacientes con obesidad fue menor (55,54) en comparación con los clasificados como con sobrepeso (59,08) y normales (62,51). Se observó que a mayor IMC, menores son los valores encontrados para edad (rho = -0,190), leucocitos (rho = -0,109), urea (rho = -0,145) y dímero D (rho = -0,155). Conclusión: Este estudio proporciona evidencia de que el sobrepeso y/u obesidad se asocia con una peor condición clínica durante la hospitalización de pacientes con COVID-19. En cuanto a la frecuencia de muerte, no hubo diferencia estadística en relación al diagnóstico nutricional.


Subject(s)
Humans , Male , Female , Body Mass Index , Retrospective Studies , Clinical Laboratory Techniques/methods , COVID-19/epidemiology , Nutrition Assessment , Medical Records/statistics & numerical data , Overweight , COVID-19/complications , COVID-19/mortality , Hospitalization , Obesity
3.
Rev. cuba. salud pública ; Rev. cuba. salud pública;49(4)dic. 2023.
Article in Spanish | LILACS, CUMED | ID: biblio-1569936

ABSTRACT

Introducción: Garantizar la obtención de resultados analíticos de calidad en el trabajo de los laboratorios clínicos resulta de vital importancia, de ahí se infiere la necesidad de formar profesionales competentes que dominen y pongan en práctica la normativa nacional e internacional vigente relacionada con la calidad, el papel de la función calidad es hacer que ésta sea un aspecto inseparable del desempeño y la responsabilidad de cada empleado. Objetivo: Establecer el procedimiento para el desarrollo de la gestión de la función calidad en los laboratorios clínicos docentes. Métodos: Se realizó una investigación en sistemas y servicios de salud, en la cual se aplicaron técnicas y herramientas propias de la ciencia aplicada de la calidad. Resultados: Diseño de un procedimiento, con su representación en forma de diagrama de flujo con la explicación de los pasos incluidos en él, posteriormente se describe el procedimiento para garantizar su adecuación y aplicabilidad en cualquier institución que así lo considere pertinente. Conclusiones: El procedimiento diseñado para el desarrollo de la función calidad establece la secuencia lógica de pasos a seguir para lograr su implementación(AU)


Introduction: Guaranteeing procurement of quality analytical results in the work of clinical laboratories is of vital importance, hence the need to train competent professionals who master and put into practice the current national and international regulations related to quality. The role of the quality function is to make this an inseparable aspect of the performance and responsibility of each employee. Objective: To establish the procedure for the development of quality function management in teaching clinical laboratories. Methods: Research was carried out on health systems and services, in which techniques and tools from applied quality science were applied. Results: Design of a procedure was achieved with representation in the form of a flow chart with the explanation of the steps included in it. Then the procedure is described to guarantee adequacy and applicability in any institution that considers it relevant. Conclusions: The procedure designed for the development of the quality function establishes the logical sequence of steps to follow to achieve its implementation(AU)


Subject(s)
Humans , Male , Female , Quality Control , Clinical Laboratory Techniques/methods , Health Services
6.
Med. infant ; 30(2): 172-180, Junio 2023. ilus, tab
Article in Spanish | LILACS, UNISALUD, BINACIS | ID: biblio-1443724

ABSTRACT

Los intervalos de referencia (IR) dependen de la población y de las características metrológicas del procedimiento de medida utilizado. A pesar de las recomendaciones internacionales, son pocos los laboratorios que establecen sus propios IR para cada magnitud por la dificultad para conseguir voluntarios de referencia y el elevado costo económico asociado. La International Federation of Clinical Chemistry and Laboratory Medicine (IFCC) acepta la adopción de IR bibliográficos o su cálculo por métodos indirectos dado su bajo costo y fácil obtención. Existen varias fuentes confiables de IR bibliográficos para el hemograma. No obstante, para el recuento plaquetario, es una práctica común de los laboratorios emplear el rango de valores de 150-450.109 /L independiente de la metodología utilizada y grupo etario. El objetivo de este trabajo fue revisar los IR bibliográficos disponibles para el recuento plaquetario y estimarlo empleando el método indirecto de Hoffmann a partir de nuestra población. Los métodos indirectos se basan en aplicar criterios de exclusión y cálculos matemáticos sobre los resultados de una base de datos de laboratorio. Nuestros IR para el recuento plaquetario se comparan con los bibliográficos, que han sido establecidos por técnicas de muestreo directo. Por este motivo y dado que no existen estudios poblacionales que lo avalen, sería apropiado reemplazar el rango de 150-450.109 / L. Estos límites podrían seguir empleándose como puntos de corte o niveles de decisión médica para definir, según la clínica y otros resultados de laboratorio, los pacientes que ameritan un seguimiento posterior (AU)


Reference ranges (RR) depend on the population and the metrological characteristics of the measurement procedure used. Despite international recommendations, few laboratories establish their own RRs for each magnitude because of the difficulty in obtaining reference volunteers and the associated high economic cost. The International Federation of Clinical Chemistry and Laboratory Medicine (IFCC) accepts the use of literaturebased RRs or RRs calculated by indirect methods because of their low cost and easy collection. There are several reliable sources of literature-based RRs for the Cell Blood Count. However, for platelet count, it is common laboratory practice to use the range of 150-450,109 /L regardless of the methodology used and age group. The aim of this study was to review the available literature regarding RRs for platelet count and to establish it using the indirect Hoffmann method in our population. Indirect methods are based on applying exclusion criteria and mathematical calculations on the results of a laboratory database. Our RRs for platelet counts are compared with those in the literature, which have been established by direct sampling techniques. Therefore, and given that there are no population studies to support these findings, it would be appropriate to replace the 150-450,109 /L range. These limits may continue to be used as cut-off points or medical decision levels to define, according to clinical manifestations and other laboratory results, patients who warrant further follow-up (AU)


Subject(s)
Humans , Infant, Newborn , Infant , Child, Preschool , Child , Adolescent , Platelet Count/methods , Reference Standards , Reference Values , Clinical Laboratory Techniques/methods , Laboratories, Hospital
8.
Zhonghua ganzangbing zazhi ; Zhonghua ganzangbing zazhi;(12): 466-470, 2023.
Article in Chinese | WPRIM | ID: wpr-986154

ABSTRACT

Hepatitis type E virus (HEV) infection is a common cause of acute viral hepatitis in China, and its etiological diagnosis relies on laboratory detection. Therefore, this article introduces the HEV RNA, HEV antigen, anti-HEV IgM, and IgG detection methods and their diagnostic application value. In addition, it also discusses the current international diagnostic standard and HEV infection presentation.


Subject(s)
Humans , RNA, Viral , Hepatitis Antibodies , Clinical Laboratory Techniques/methods , Hepatitis E virus , Immunoglobulin M , Hepatitis
9.
Article in Chinese | WPRIM | ID: wpr-969835

ABSTRACT

The laboratory diagnostic strategy for human immunodeficiency virus (HIV) is a process to accurately detect HIV patients through a combination of available HIV tests. Laboratory tests for HIV infection are mainly serological antibody and antigen testing and HIV RNA testing. With the update of testing reagents, the sensitivity and specificity have improved substantially and the window period of detection has shortened, but there is a risk of false positives. Various guidelines have recommended different diagnostic strategies for different target populations and different prevalence regions to guide patients to confirm the diagnosis and receive standardized antiretroviral therapy as early as possible. How to refer to the diagnostic strategies, reduce false positives and shorten the window period while increasing the detection rate is an urgent issue for laboratories to address. This article describes the characteristics and advantages and disadvantages of testing methods related to HIV infection from the perspective of laboratory diagnostic strategies, as well as the impact of the development of treatments on diagnostic strategies, in order to provide theoretical support for the practical application of HIV diagnostic strategies.


Subject(s)
Humans , HIV , HIV Infections/diagnosis , Sensitivity and Specificity , Clinical Laboratory Techniques/methods , Quality Control
10.
Rev. cuba. pediatr ; 952023. tab
Article in Spanish | LILACS, CUMED | ID: biblio-1441833

ABSTRACT

Introducción: Las cardiopatías congénitas son causa frecuente de insuficiencia cardíaca mientras las cardiopatías adquiridas resultan menos frecuentes. La expresión clínica difiere en gran manera de la población adulta y representa la emergencia cardiovascular más frecuente en pediatría. El diagnóstico es completamente clínico, y el tratamiento está encaminado a corregir la causa que la origina. Objetivo: Actualizar conceptos, fisiopatología, manifestaciones clínicas, y tratamiento de la insuficiencia cardíaca en pediatría. Métodos: Se revisaron las bases de datos Medline, PubMed, SciELO y plataforma Springerlink, disponibles desde Infomed; desde el año 2000 hasta 2020, en idioma español e inglés. Análisis y síntesis de la información: La insuficiencia cardíaca es un síndrome clínico resultado de disfunción ventricular, sobrecarga de presión o volumen, independiente o en combinación, que conlleva a signos y síntomas característicos. La identificación de su causa, el diagnóstico precoz y el tratamiento oportuno mejoraran el pronóstico de los pacientes aquejados. Conclusiones: La insuficiencia cardíaca en edad pediátrica representa una compleja afección de causas multifactoriales. El diagnóstico puede hacerse con el método clínico, complementándose con los diferentes exámenes. El tratamiento médico farmacológico o no, se encamina a tratar la causa, además de nuevas terapias en desarrollo prometedoras en el futuro(AU)


Introduction: Congenital heart disease is a frequent cause of heart failure while acquired heart disease is less frequent. The clinical expression differs greatly from the adult population and represents the most frequent cardiovascular emergency in pediatrics. Diagnosis is completely clinical and treatment is aimed at correcting the cause. Objective: To update concepts, pathophysiology, clinical manifestations and treatment of heart failure in pediatrics. Methods: The databases Medline, PubMed, SciELO and Springerlink platform, available from Infomed, were reviewed from 2000 to 2020, in Spanish and English. Analysis and synthesis of the information: Heart failure is a clinical syndrome resulting from ventricular dysfunction, pressure or volume overload, independently or in combination, leading to characteristic signs and symptoms. Identification of its cause, early diagnosis and timely treatment improve the prognosis of afflicted patients. Conclusions: Heart failure in pediatric age represented a complex condition with multifactorial causes. The diagnosis can be made with the clinical method, complemented with different examinations. Pharmacological or non-pharmacological medical treatment is aimed at treating the cause, in addition to promising new therapies under development in the future(AU)


Subject(s)
Humans , Infant , Child, Preschool , Heart Defects, Congenital/etiology , Heart Failure/etiology , Heart Failure/physiopathology , Heart Failure/therapy , Heart Failure/epidemiology , Serial Publications , Extracorporeal Membrane Oxygenation/instrumentation , Clinical Laboratory Techniques/methods , Heart Auscultation , Heart Failure/classification
11.
Arq. ciências saúde UNIPAR ; 27(3): 1164-1172, 2023.
Article in Portuguese | LILACS | ID: biblio-1425449

ABSTRACT

O Lúpus Eritematoso Sistêmico (LES) é uma patologia crônica, de origem autoimune e inflamatória. As diversas manifestações clínicas existentes em pacientes acometidos pelo LES, sejam elas sistêmicas ou órgãos-alvo, possibilitam variados diagnósticos diferenciais. Dentre as manifestações clínicas que possibilitam estes diagnósticos está o acometimento cutâneo, com vasta variabilidade de apresentação. Da mesma forma, a sífilis também possui apresentação cutânea, tornando possível o diferencial de diagnóstico com outras patologias, inclusive o próprio LES. O presente estudo tem como objetivo relatar um caso de sífilis mimetizando lúpus eritematoso sistêmico, descrever o quadro clínico apresentado pelo paciente, bem como as ferramentas utilizadas para diagnóstico, e a posterior abordagem terapêutica. O caso relatado refere-se a um paciente de 29 anos, do sexo masculino, procedente de Campos Novos (SC), que apresentou um quadro clínico e laboratorial de lúpus-like induzido por uma infecção aguda de sífilis. A resolução completa de critérios inflamatórios de LES ocorreu após tratamento correto da doença infecciosa, com total melhora clínica e sorológica.


Systemic lupus erythematosus (SLE) is a chronic autoimmune inflammatory disease. The various clinical manifestations in SLE patients, both systemic and in target organs, allow for various differential diagnoses. Among the clinical manifestations that aid in diagnosis are the cutaneous injuries, which have a wide range of presentations. Syphilis also has cutaneous manifestations, which aid in the differential diagnosis from other pathologies, including SLE. The present study aims to report a case of syphilis mimicking SLE, describe the clinical condition presented by the patient, the tools used for diagnosis, and the therapeutic approach. The case reported refers to a 29- year-old male patient from Campos Novos (SC), who showed a clinical and laboratory lupus-like condition induced by an acute syphilis infection. The full resolution of SLE inflammatory criteria occurred following appropriate treatment for the infectious disease, with complete clinical and serological improvement.


El lupus eritematoso sistémico (LES) es una enfermedad inflamatoria autoinmune crónica. Las diversas manifestaciones clínicas de los pacientes con LES, tanto sistémicas como en órganos diana, permiten realizar varios diagnósticos diferenciales. Entre las manifestaciones clínicas que ayudan al diagnóstico se encuentran las lesiones cutáneas, que tienen una amplia gama de presentaciones. La sífilis también tiene manifestaciones cutáneas, que ayudan al diagnóstico diferencial con otras patologías, incluido el LES. El presente estudio tiene como objetivo comunicar un caso de sífilis que simula un LES, describir el cuadro clínico presentado por la paciente, las herramientas utilizadas para el diagnóstico y el abordaje terapéutico. El caso relatado se refiere a un paciente masculino de 29 años, natural de Campos Novos (SC), que presentó un cuadro clínico y de laboratorio semejante al lupus, inducido por una infección aguda por sífilis. La resolución completa de los criterios inflamatorios del LES ocurrió tras el tratamiento adecuado de la enfermedad infecciosa, con mejoría clínica y serológica completa.


Subject(s)
Humans , Male , Adult , Syphilis/diagnosis , Syphilis/pathology , Syphilis/therapy , Lupus Erythematosus, Systemic/diagnosis , Lupus Erythematosus, Systemic/pathology , Lupus Erythematosus, Systemic/therapy , Skin Manifestations , Adaptation, Biological , Communicable Diseases/pathology , Communicable Diseases/therapy , Clinical Laboratory Techniques/methods , Case Reports as Topic , Infections/diagnosis
12.
Arch. argent. pediatr ; 120(5): 336-339, oct. 2022. tab
Article in English, Spanish | LILACS, BINACIS | ID: biblio-1391180

ABSTRACT

Frenar la propagación de la enfermedad por el coronavirus 2019 (COVID-19, por su sigla en inglés) es fundamental, y se puede realizar mediante técnicas de detección rápidas y efectivas. El objetivo fue comparar la precisión diagnóstica de un test rápido de antígeno (TRAg,) con la reacción en cadena de polimerasa con retrotranscripción (RT-qPCR, por su sigla en inglés) y describir los umbrales de amplificación (Ct, por su sigla en inglés). Participaron niños de 1 mes a 11 años que tuvieran menos de 7 días de síntomas, sin resultado detectable en los últimos 90 días, e inmunocompetentes. Se incluyeron 1855 pacientes con una prevalencia de COVID-19 del 4,7 %. La sensibilidad global del TRAg fue del 60,2 % y su especificidad, del 99,8 %; en niños mayores de 5 años los valores fueron de 69,8 % y 99,8 %, respectivamente. Los valores de Ct de las muestras discordantes fueron más altos. En conclusión, la precisión diagnóstica muestra que TRAg tiene una especificidad similar a la RT-qPCR, pero una sensibilidad considerablemente menor, sobre todo en niños de menos de 5 años.


Stopping the spread of coronavirus disease 2019 (COVID-19) is critical and can be achieved through rapid and effective detection techniques. Our objective was to compare the diagnostic accuracy of rapid antigen tests (RAgT) and reverse transcription quantitative polymerase chain reaction (RT-qPCR) and to describe amplification cycle thresholds (Cts). Participants were children aged 1 month to 11 years with symptoms for less than 7 days, who did not have a detectable result in the past 90 days, and were immunocompetent. A total of 1855 patients were included; the prevalence of COVID-19 was 4.7%. For the RAgT, overall sensitivity was 60.2% and specificity, 99.8%; in children older than 5 years, values were 69.8% and 99.8%, respectively. Ct values for discordant samples were higher. To conclude, the diagnostic accuracy indicated that the specificity of RAgT is similar to that of RT-qPCR, but its sensitivity is notably lower,especially in children younger than 5 years.


Subject(s)
Humans , Infant , Child, Preschool , Child , SARS-CoV-2 , COVID-19/diagnosis , Cross-Sectional Studies , Sensitivity and Specificity , Clinical Laboratory Techniques/methods , Real-Time Polymerase Chain Reaction , COVID-19 Testing
14.
Prensa méd. argent ; Prensa méd. argent;108(4): 223-227, 20220600. tab
Article in English | LILACS, BINACIS | ID: biblio-1381891

ABSTRACT

Dado que el SARS-CoV-2 causa alteraciones en los parámetros hematológicos, muchos estudios se han concentrado en esta área y los han correlacionado con la gravedad de la enfermedad. Se revisó en un estudio retrospectivo de casos graves de COVID-19, en el cual se contabilizaron y documentaron los datos de hemoglobina (Hb) y glóbulos blancos (WBC) de pacientes reclutados en el período de marzo a julio de 2021. Retrospectivamente, los datos extraídos fueron sobre el nivel de Hb y los recuentos de glóbulos blancos de los informes de laboratorio tanto al ingreso como cuando alta de los pacientes. Se calcularon las frecuencias de anemia o eritrocitopenia (Hb <12 g/dL) y leucocitosis (WBC >11×103/µL) en la población estudiada. De 3637 casos de SARS-COV-2, 250 pacientes con condiciones graves de COVID-19 según la definición de la OMS, ingresaron en la UCI o fallecieron, De 250, 80 (32%) ingresaron a UCI, y el resto 170 casos (68%) fallecieron. Mientras que la edad media de los pacientes fue de 55,46±17,49 años, los pacientes con la condición grave tuvieron significativamente mayor edad que aquellos con la condición leve-moderada (edad media de 50,68 frente a 68,59; P: <0,01). El número medio de glóbulos blancos (WBC) fue de 8,88±7,29 x109/L en todos los pacientes con SARS-COV-2, que es significativamente mayor en los casos graves en comparación con aquellos con enfermedad leve-moderada (10,56 frente a 8,95; P: <0,01). El nivel de Hb (<12 g/dL) fue más bajo en el COVID-19 grave que en otros grupos; sin embargo, no fue estadísticamente significativo. El aumento del número de glóbulos blancos y la disminución de la Hb durante la hospitalización de pacientes con SARS-COV-2, puede predecir un mal resultado. Llegamos a la conclusión de que no sólo el número medio de glóbulos blancos era significativamente mayor en los casos severos también la leucocitosis fue un hallazgo común; lo que indica que un mayor número de glóbulos blancos probablemente puede predecir un mal resultado. Asimismo, el nivel de La Hb fue mayor en el grupo leve-moderado; sin embargo, no fue estadísticamente significativo.


SARS-CoV-2 cause alterations in the hematological parameters and many studies have concentrated on this area and correlated these with severity of disease. A retrospective study of severe cases of COVID-19 were reviewed. The data of hemoglobin (Hb) and white blood cells (WBCs) were accounted and documented. Patients recruited at period from March to July, 2021. Retrospectively, data extracted on the Hb level and WBC counts from Lab reports both at admission and when patients discharge. The frequencies of anemia or erythrocytopenia (Hb <12 g/dL) and leukocytosis (WBC >11×103/µL) was calculated in the studied population. Of 3637 SARS-COV-2 cases, 250 patients with severe conditions of COVID-19 as de ne by WHO, which were either admitted to ICU or died. Of 250, 80(32%) were entered to ICU, and the rest 170 cases (68%) who died. While the mean age of the patients was 55.46±17.49 years, patients with the severe condition were signi cantly older than those with the mildmoderate condition (mean age of 50.68 vs. 68.59; P: <0.01). The mean number of white blood cells (WBC) was 8.88±7.29 x109/L in all SARS-COV-2 patients, which is signi cantly higher in the severe cases compared to those with the mild-moderate disease (10.56 vs. 8.95; P: <0.01). The Hb level (<12 g/ dL) was lower in the severe COVID-19 than other groups; however, it was not statistically signi cant. Increased number of WBCs and dropped Hb level during hospitalization of SARS-COV-2 patients may predict a poor outcome. We concluded that not only the mean number of WBCs was signi cantly higher in the severe cases also leukocytosis was a common nding; indicating that an increased number of WBCs may probably predict a poor outcome. Also, the level of Hb was higher in the mild-moderate group; however, it was not statistically signi cant.


Subject(s)
Humans , Adolescent , Adult , Middle Aged , Hemoglobins/analysis , Clinical Laboratory Techniques/methods , Patient Acuity , SARS-CoV-2/immunology , COVID-19/immunology , Leukocytes
15.
São Paulo; s.n; s.n; 2022. 117 p. tab, graf.
Thesis in Portuguese | LILACS | ID: biblio-1416836

ABSTRACT

As variabilidades genotípicas que determinam algumas alterações fenotípicas e metabólicas podem ter seu diagnostico falho se baseado apenas nos dados genômicos. Na hipercolesterolemia familial (HF) pode-se observar que os dados de variantes nos genes da LDLR, PCSK9, APOB e LDLRAP1 sugeridos pelos consensos atuais para confirmar o diagnóstico, tem mostrado serem insuficientes, mostrando baixa porcentagem de confirmação, mesmo nos dos casos em que características fenotípicas apresentam dados sugestivos importantes. A complementação no auxílio diagnóstico com dados epigenéticos tem sido sugerida em muitas doenças, principalmente nas crônicos degenerativos. A metilação do DNA pode estar envolvida no mecanismo que regulam vários processos metabólicos, entre os quais os envolvidos na expressão de proteínas e neste estudo os que estão envolvidos no metabolismo do colesterol, que poderia explicar fenótipos hipercolesterolemicos sem demonstração clara de variantes nos genes de consenso. O objetivo do presente estudo foi comparar o perfil de metilação dos genes LDLR, PCSK9 e LDLRAP1 entre pacientes com diagnóstico de Hipercolesterolemia Familial confirmado através de variantes genéticas descritas na literatura e pacientes sem diagnóstico confirmado. Além da comparação com indíviduos normolipidêmicos. A seleção dos indivíduos foi realizada na Seção de Dislipidemia do Instituto Dante Pazzanese de Cardiologia (IDPC), do Departamento de Análises Clínicas e Toxicológicas da Universidade Federal do Rio Grande do Norte (UFRN), da Universidade Estadual de Campinas (UNICAMP) e da Faculdade de Medicina de São José do Rio Preto (FAMERP). Através dos critérios MEDPED foram selecionados 133 pacientes para a realização do sequenciamento de um painel de genes relacionados ao fenótipo de HF e a homeostasia do colesterol a fim de confirmar o diagnóstico. Todos os pacientes tiveram o DNA purificado, que foi submetido ao tratamento com bissulfito, amplificado, purificado, desnaturado e sequenciado no sistema PyroMark Q24. Avaliou-se o perfil de metilação, em sítio CpG dos genes da LDLR, PCSK9 e LDLR AP1. A análise estatística foi realizada utilizando o software SPSS v.19, GraphPad Prism, versão 1.03 e o e o software R. 4.1.0. Os pacientes foram classificados em Grupo I: Pacientes com diagnóstico molecular confirmado pelo estudo fenotípico e genotipico (n=40); Grupo II: Pacientes fenotipicamente determinados como hipercolesterolemico, mas sem diagnóstico molecular confirmado pelo estudo genomico (n=93); Grupo III: indivíduos fenotipicamente determinados normolipidêmicos de acordo com a V Diretriz Brasileira de Dislipidemia (n=23). A análise comparativa entre os grupos I x II e II x III, demonstrou diferença estatísta significativa em 13 sítios CpG do total de 28 sítios CpG analisados nos três genes. Além disso, foi possível concluir que alterações nos sítios CpG presentes no gene LDLR influenciaram na presença de xantomas e arco córneo. Houve correlação positiva entre a idade e perfil de metilação do gene PCSK9, assim como, alterações nos sítios CpG deste gene influenciaram na presença de arco córneo e IAM. Além disso, alterações no sítio CPG presente no gene LDLRAP1 influenciou no desenvolvimento de DAC, IAM e RM, além da presença de xantelasma


The genotypic variabilities that determine some phenotypic and metabolic alterations can be misdiagnosed if based only on genomic data. In familial hypercholesterolemia (FH) it can be observed that the data of variants in the genes of LDLR, PCSK9, APOB and LDLR AP1 suggested by the current consensus to confirm the diagnosis, has shown to be insufficient, showing a low percentage of confirmation, even in the cases in which phenotypic characteristics present important suggestive data. Complementing the diagnostic aid with epigenetic data has been suggested in many diseases, especially in chronic degenerative diseases. DNA methylation may be involved in the mechanisms that regulate several metabolic processes, including those involved in the expression of proteins that ,in this study, are involved in cholesterol metabolism, which could explain hypercholesterolemic phenotypes without a clear demonstration of variants in consensus genes. The aim of the present study was to compare the methylation profile of LDLR, PCSK9 and LDLRAP1 genes between patients with a diagnosis of Familial Hypercholesterolemia confirmed through genetic variants described in the literature and patients without a confirmed diagnosis. In addition to the comparison with normolipidemic individuals. The selection of individuals was carried out at the Dyslipidemia Section of the Instituto Dante Pazzanese de Cardiologia (IDPC), in the Department of Clinical and Toxicological Analyzes of the Federal University of Rio Grande do Norte (UFRN), in the State University of Campinas (UNICAMP) and in the Faculdade of Medicine of São José do Rio Preto (FAMERP). Through the MEDPED criteria, 133 patients were selected to perform the sequencing of a panel of genes related to the FH phenotype and cholesterol homeostasis in order to confirm the diagnosis. All patients had their DNA purified, which were subjected to bisulfite treatment, amplified, purified, denatured and sequenced on the PyroMark Q24 system. The methylation profile in the CpG site of the LDLR, PCSK9 and LDLRAP1 genes were evaluated. Statistical analysis were performed using SPSS v.19 software, GraphPad Prism, version 1.03 and R. 4.1.0 software. Patients were classified into Group I: Patients with a molecular diagnosis confirmed by phenotypic and genotypic studies (n=40); Group II: Patients phenotypically determined to be hypercholesterolemic, but without a molecular diagnosis confirmed by the genomic study (n=93); Group III: phenotypically determined normolipidemic individuals according to the V Brazilian Dyslipidemia Directive (n=23). The comparative analysis between groups I x II and II x III showed a statistically significant difference in 13 CpG sites of the total of 28 CpG sites analyzed in the three genes of the project. Furthermore, it was possible to conclude that alterations in the CpG sites present in the LDLR gene influenced the presence of xanthomas and arc corneum. There was a positive correlation between age and PCSK9 gene methylation profile, as well as changes in the CpG sites of this gene influenced the presence of arc corneum and AMI. In addition, alterations in the site present in the LDLRAP1 gene are influencing the development of CAD, AMI and MR, in addition to the presence of xanthelasma


Subject(s)
Humans , Male , Female , DNA/analysis , Proprotein Convertase 9/analysis , Hyperlipoproteinemia Type II/diagnosis , Coronary Artery Disease/classification , Clinical Laboratory Techniques/methods , Molecular Diagnostic Techniques/methods , Diagnosis
16.
Rev. cuba. med ; 60(3): e1679, 2021.
Article in Spanish | LILACS, CUMED | ID: biblio-1347521

ABSTRACT

La desproporcional y alta frecuencia de órdenes médicas de anticuerpos frente al citoplasma del neutrófilo (ANCA, por sus siglas en inglés) dirigidas a nuestros laboratorios clínicos evidencia el sobreuso de la prueba de ANCA. El uso indiscriminado de esta aumenta los gastos sin beneficio de salud. El laboratorio clínico es el eslabón de la cadena diagnóstica que más siente el uso excesivo de las solicitudes de ANCA, básicamente porque genera resultados falsos positivos que comprometen la utilidad clínica de la prueba, además de recargar innecesariamente el trabajo diario del laboratorio. La prueba de ANCA es una herramienta diagnóstica muy útil para las vasculitis sistémicas primarias, pero su valor en situaciones no vasculíticas así como en otras condiciones inflamatorias y en enfermedades infecciosas o tumorales, no ha sido demostrado.1,2 El descubrimiento de los ANCA cambió...(AU)


Subject(s)
Humans , Antibodies, Antineutrophil Cytoplasmic , Clinical Laboratory Techniques/methods , Systemic Vasculitis , Fluorescence
17.
Rev. cuba. oftalmol ; 34(2): e1094, 2021.
Article in Spanish | LILACS, CUMED | ID: biblio-1341462

ABSTRACT

La catarata senil es la primera causa de ceguera reversible en el mundo y la cirugía constituye el único método para solucionar esta enfermedad, con alto nivel de seguridad y elevada mejoría en calidad visual y de vida. Por ser una afectación que ocurre en pacientes de la tercera edad, con frecuencia presentan enfermedades sistémicas como hipertensión arterial, diabetes mellitus, enfermedades cardiovasculares, entre otras. Hasta esta fecha se indican exámenes de laboratorio de rutina en el preoperatorio que para algunas instituciones son innecesarios por el bajo riesgo de esta técnica quirúrgica. Se realizó una búsqueda bibliográfica en Pubmed, Cochrane y Google Académico con el objetivo de revisar lo relacionado con la necesidad de efectuar estos exámenes de laboratorio como rutina antes de la cirugía de catarata. Existen pocos artículos referentes al tema, por lo que se seleccionaron los de mayor evidencia científica. Se pudo concluir que no hay evidencia sobre los requerimientos y necesidades de estudios de laboratorio en el preoperatorio, ya que sus resultados no aportan la capacidad de predecir la morbilidad o de cambiar la conducta relacionada con el proceder quirúrgico o anestésico(AU)


Senile cataract is the leading cause of reversible blindness worldwide. Surgery is the only method available to heal this condition, with a high level of safety and considerable improvement in visual quality and quality of life. Being as it is a condition occurring in elderly patients, systemic diseases such as hypertension, diabetes mellitus and cardiovascular diseases, among others, are usually present. Routine preoperative laboratory tests are customarily indicated which some institutions consider unnecessary due to the low risk of this surgical procedure. A bibliographic search was conducted in PubMed, Cochrane and Google Scholar with the purpose of reviewing published information about the need to conduct these laboratory tests as routine practice before cataract surgery. Since few papers about the topic were available, a selection was made of the ones providing the most relevant scientific evidence. It was concluded that no evidence exists about the requirements of and need for preoperative laboratory studies, since their results do not contribute to the ability to predict morbidity or change the conduct related to the surgical or anesthetic procedure(AU)


Subject(s)
Humans , Surgical Procedures, Operative/adverse effects , Cataract Extraction/methods , Clinical Laboratory Techniques/methods , Quality of Life , Total Quality Management
18.
Rev. cuba. med. trop ; 73(1): e603, tab, graf
Article in Spanish | LILACS, CUMED | ID: biblio-1280332

ABSTRACT

. Introducción: Con los primeros casos de COVID-19 en Cuba era necesario el reconocimiento temprano de los pacientes con riesgo de evolucionar hacia formas graves de la enfermedad. Objetivo: Describir el comportamiento clínico de la COVID-19 en pacientes hospitalizados en el Instituto de Medicina Tropical "Pedro Kourí" e identificar factores asociados a la gravedad. Métodos: Se presentaron los primeros 73 casos de COVID-19 hospitalizados en el Instituto de Medicina Tropical Pedro Kourí desde el 11 de marzo al 5 mayo de 2020. Los pacientes se clasificaron en dos grupos: graves y con enfermedad ligera. Se compararon variables clínicas, demográficas, de laboratorio e imagenológicas en el momento del ingreso, y su posible asociación con la gravedad de la enfermedad. Resultados: Hubo siete pacientes graves (9,6 por ciento), cinco fallecieron. La edad > 60 años, tener más de una comorbilidad, hipertensión arterial y asma bronquial, fueron más frecuentes en pacientes graves. La fiebre más de seis días (p= 0,00), disnea (p= 0,00), presencia de estertores húmedos (p= 0,00), frecuencia respiratoria > 24/min (p= 0,00) y valores de linfocitos < 0,8 x109/L (p= 0,00), de ferritina > 500µg/L (p =0,00), proteína C reactiva ( 10μg/L (p= 0,01) y LDH ( 500 U/L (p= 0,01) se relacionaron con la gravedad. El 18,2 por ciento de las radiografías de tórax mostró alteraciones, con predominio de focos de condensación inflamatoria bilateral. Las complicaciones más frecuentes fueron: distrés respiratorio, choque, sepsis bacteriana y afecciones cardíacas. Conclusiones: Existen características clínicas y de laboratorio, identificables al ingreso, que están relacionadas con la gravedad de la enfermedad; lo que puede ser útil para la estratificación del riesgo y el manejo adecuado de los pacientes(AU)


Introduction: Upon appearance of the first COVID-19 cases in Cuba, early identification of patients at risk of developing severe forms of the disease became a necessity. Objective: Describe the clinical behavior of COVID-19 in patients admitted to Pedro Kourí Tropical Medicine Institute and identify factors associated to severity. Methods: A presentation was made of the first 73 COVID-19 cases admitted to Pedro Kourí Tropical Medicine Institute from 11 March to 5 May 2020. The patients were divided into two groups: severe and mild disease. A comparison was made of clinical, demographic, laboratory and imaging variables at admission, and their possible association to disease severity. Results: Seven patients (9.6%) were critically ill; five died. Age > 60 years, more than one comorbidity, arterial hypertension and bronchial asthma were more common among critical patients. Fever for more than six days (p= 0.00), dyspnea (p= 0.00), presence of humid stertors (p= 0.00), respiratory rate > 24/min (p= 0.00) and lymphocytes < 0.8 x109/l (p= 0.00), ferritin > 500 µg/L (p =0.00), C-reactive protein 10 μg/l (p= 0.01) and LDH 500 U/l (p= 0.01) were related to disease severity. 18.2 percent of the chest radiographs showed alterations, with a predominance of bilateral foci of inflammatory condensation. The most common complications were respiratory distress, shock, bacterial sepsis and heart disorders. Conclusions: Some clinical and laboratory characteristics identifiable at admission may be associated to disease severity, which makes them useful for risk stratification and the appropriate management of patients(AU)


Subject(s)
Humans , Clinical Laboratory Techniques/methods , COVID-19/complications , COVID-19/diagnosis , COVID-19/drug therapy , Cuba , Laboratory Critical Values
19.
Brasília; Brasil. Ministério da Saúde; 2021.
Monography in Portuguese | LILACS, ColecionaSUS | ID: biblio-1373214

ABSTRACT

O presente guia tem como finalidade auxiliar e orientar a atuação dos integrantes do Sistema Nacional de Laboratórios de Saúde Pública (Sislab), instituído pela Portaria GM/MS n. 2.031, de 23 de setembro de 2004, que, entre suas competências, define o Sislab como um sistema organizado em sub-redes por agravos ou programas, de forma hierarquizada por grau de complexidade, e que se configura dentro dos princípios do Sistema Único de Saúde (SUS).


Subject(s)
Clinical Laboratory Techniques/methods , Public Health Laboratory Services , Public Health Surveillance/methods , Brazil
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