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2.
Rev. Paul. Pediatr. (Ed. Port., Online) ; 37(2): 252-256, Apr.-June 2019. tab, graf
Artigo em Inglês | LILACS | ID: biblio-1013282

RESUMO

ABSTRACT Objective: To highlight the importance of the new classification criteria for the macrophage activation syndrome (MAS) in systemic juvenile idiopathic arthritis in order to reduce morbidity and mortality outcome related to this disease. Case description: A 12-year-old female patient with diagnosis of systemic juvenile idiopathic arthritis under immunosuppression therapy for two years developed cough, acute precordial chest pain, tachypnea, tachycardia and hypoxemia for two days. Chest tomography showed bilateral laminar pleural effusion with bibasilar consolidation. The electrocardiogram was consistent with acute pericarditis and the echocardiogram showed no abnormalities. Laboratory exams revealed anemia, leukocytosis and increased erythrocyte sedimentation rate, as well as C-reactive protein rate and serum biomarkers indicative of myocardial injury. Systemic infection and/or active systemic juvenile idiopathic arthritis were considered. She was treated with antibiotics and glucocorticoids. However, 10 days later she developed active systemic disease (fever, evanescent rash and myopericarditis with signs of heart failure) associated with macrophage activation syndrome, according to the 2016 Classification Criteria for Macrophage Activation Syndrome in Systemic Juvenile Idiopathic Arthritis. She was treated for five days with pulse therapy, using glucocorticoids, immunoglobulin and cyclosporine A, with improvement of all clinical signs and laboratory tests. Comments: Myopericarditis with signs of heart failure associated with MAS is a rare clinical presentation of systemic juvenile idiopathic arthritis. Macrophage activation syndrome occurs mainly during periods of active systemic juvenile idiopathic arthritis and may be triggered by infection. Knowledge about this syndrome is crucial to reduce morbidity and mortality.


RESUMO Objetivo: Destacar a importância do conhecimento sobre os novos critérios de classificação para síndrome de ativação macrofágica (SAM) na artrite idiopática juvenil sistêmica para reduzir a morbidade e mortalidade desse desfecho. Descrição do caso: Adolescente do sexo feminino de 12 anos de idade, em terapia imunossupressora por diagnóstico de artrite idiopática juvenil sistêmica há 2 anos, com quadro de tosse, dor precordial aguda, taquipneia, taquicardia e hipoxemia há 2 dias. A tomografia de tórax evidenciou efusão pleural laminar bilateral com consolidação bibasal. O eletrocardiograma foi compatível com pericardite aguda, e o ecocardiograma foi normal. Os exames laboratoriais revelaram anemia, leucocitose e aumento da velocidade de hemossedimentação, proteína C-reativa e marcadores séricos de lesão miocárdica. Infecção sistêmica e/ou doença sistêmica em atividade foram consideradas. A paciente foi tratada com antibióticos e glicocorticoide. Entretanto, dez dias depois, evoluiu com doença sistêmica em atividade (febre, exantema e miopericardite com insuficiência cardíaca) associada à SAM, de acordo com o 2016 Classification Criteria for Macrophage Activation Syndrome in Systemic Juvenile Idiopathic Arthritis, e necessitou de cinco dias de pulsoterapia com glicocorticoide, imunoglobulina e ciclosporina A, com melhora de todos os parâmetros clínicos e laboratoriais. Comentários: A miopericardite com sinais de insuficiência cardíaca associada à SAM é uma apresentação clínica rara da artrite idiopática juvenil sistêmica, que ocorre principalmente em períodos de atividade sistêmica da doença e pode ser deflagrada por infecções. O conhecimento sobre essa síndrome é fundamental para reduzir morbidade e mortalidade desse grave desfecho.


Assuntos
Humanos , Feminino , Criança , Ciclosporina/administração & dosagem , Glucocorticoides/administração & dosagem , Artrite Juvenil/complicações , Artrite Juvenil/diagnóstico , Artrite Juvenil/fisiopatologia , Artrite Juvenil/imunologia , Dor no Peito/diagnóstico , Dor no Peito/etiologia , Tomografia Computadorizada por Raios X/métodos , Resultado do Tratamento , Imunoglobulinas Intravenosas/administração & dosagem , Pulsoterapia/métodos , Eletrocardiografia/métodos , Síndrome de Ativação Macrofágica/etiologia , Síndrome de Ativação Macrofágica/fisiopatologia , Síndrome de Ativação Macrofágica/sangue , Síndrome de Ativação Macrofágica/terapia , Imunossupressores/administração & dosagem , Leucocitose/diagnóstico , Leucocitose/etiologia
3.
Rev Paul Pediatr ; 37(2): 252-256, 2019.
Artigo em Inglês, Português | MEDLINE | ID: mdl-30810692

RESUMO

OBJECTIVE: To highlight the importance of the new classification criteria for the macrophage activation syndrome (MAS) in systemic juvenile idiopathic arthritis in order to reduce morbidity and mortality outcome related to this disease. CASE DESCRIPTION: A 12-year-old female patient with diagnosis of systemic juvenile idiopathic arthritis under immunosuppression therapy for two years developed cough, acute precordial chest pain, tachypnea, tachycardia and hypoxemia for two days. Chest tomography showed bilateral laminar pleural effusion with bibasilar consolidation. The electrocardiogram was consistent with acute pericarditis and the echocardiogram showed no abnormalities. Laboratory exams revealed anemia, leukocytosis and increased erythrocyte sedimentation rate, as well as C-reactive protein rate and serum biomarkers indicative of myocardial injury. Systemic infection and/or active systemic juvenile idiopathic arthritis were considered. She was treated with antibiotics and glucocorticoids. However, 10 days later she developed active systemic disease (fever, evanescent rash and myopericarditis with signs of heart failure) associated with macrophage activation syndrome, according to the 2016 Classification Criteria for Macrophage Activation Syndrome in Systemic Juvenile Idiopathic Arthritis. She was treated for five days with pulse therapy, using glucocorticoids, immunoglobulin and cyclosporine A, with improvement of all clinical signs and laboratory tests. COMMENTS: Myopericarditis with signs of heart failure associated with MAS is a rare clinical presentation of systemic juvenile idiopathic arthritis. Macrophage activation syndrome occurs mainly during periods of active systemic juvenile idiopathic arthritis and may be triggered by infection. Knowledge about this syndrome is crucial to reduce morbidity and mortality.


Assuntos
Artrite Juvenil , Dor no Peito , Ciclosporina/administração & dosagem , Glucocorticoides/administração & dosagem , Leucocitose , Síndrome de Ativação Macrofágica , Artrite Juvenil/complicações , Artrite Juvenil/diagnóstico , Artrite Juvenil/imunologia , Artrite Juvenil/fisiopatologia , Dor no Peito/diagnóstico , Dor no Peito/etiologia , Criança , Eletrocardiografia/métodos , Feminino , Humanos , Imunoglobulinas Intravenosas/administração & dosagem , Imunossupressores/administração & dosagem , Leucocitose/diagnóstico , Leucocitose/etiologia , Síndrome de Ativação Macrofágica/sangue , Síndrome de Ativação Macrofágica/etiologia , Síndrome de Ativação Macrofágica/fisiopatologia , Síndrome de Ativação Macrofágica/terapia , Pulsoterapia/métodos , Tomografia Computadorizada por Raios X/métodos , Resultado do Tratamento
4.
Appl Physiol Nutr Metab ; 42(9): 916-923, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28475846

RESUMO

The aim of this study was to investigate the effects of resistance exercise training (RET) on oxidative stress, systemic inflammatory markers, and muscle wasting in Walker-256 tumor-bearing rats. Male (Wistar) rats were divided into 4 groups: sedentary controls (n = 9), tumor-bearing (n = 9), exercised (n = 9), and tumor-bearing exercised (n = 10). Exercised and tumor-bearing exercised rats were exposed to resistance exercise of climbing a ladder apparatus with weights tied to their tails for 6 weeks. The physical activity of control and tumor-bearing rats was confined to the space of the cage. After this period, tumor-bearing and tumor-bearing exercised animals were inoculated subcutaneously with Walker-256 tumor cells (11.0 × 107 cells in 0.5 mL of phosphate-buffered saline) while control and exercised rats were injected with vehicle. Following inoculation, rats maintained resistance exercise training (exercised and tumor-bearing exercised) or sedentary behavior (control and tumor-bearing) for 12 more days, after which they were euthanized. Results showed muscle wasting in the tumor-bearing group, with body weight loss, increased systemic leukocytes, and inflammatory interleukins as well as muscular oxidative stress and reduced mTOR signaling. In contrast, RET in the tumor-bearing exercised group was able to mitigate the reduced body weight and muscle wasting with the attenuation of muscle oxidative stress and systemic inflammatory markers. RET also prevented loss of muscle strength associated with tumor development. RET, however, did not prevent the muscle proteolysis signaling via FBXO32 gene messenger RNA expression in the tumor-bearing group. In conclusion, RET performed prior tumor implantation prevents cachexia development by attenuating tumor-induced systemic pro-inflammatory condition with muscle oxidative stress and muscle damage.


Assuntos
Caquexia/prevenção & controle , Carcinoma 256 de Walker/terapia , Leucocitose/prevenção & controle , Debilidade Muscular/prevenção & controle , Músculo Esquelético/fisiopatologia , Estresse Oxidativo , Condicionamento Físico Animal , Animais , Biomarcadores/sangue , Biomarcadores/metabolismo , Caquexia/etiologia , Caquexia/imunologia , Carcinoma 256 de Walker/metabolismo , Carcinoma 256 de Walker/patologia , Carcinoma 256 de Walker/fisiopatologia , Citocinas/sangue , Regulação Neoplásica da Expressão Gênica , Mediadores da Inflamação/sangue , Leucocitose/etiologia , Leucocitose/imunologia , Masculino , Proteínas Musculares/genética , Proteínas Musculares/metabolismo , Debilidade Muscular/etiologia , Debilidade Muscular/imunologia , Músculo Esquelético/imunologia , Músculo Esquelético/metabolismo , Músculo Esquelético/patologia , Distribuição Aleatória , Ratos Wistar , Proteínas Ligases SKP Culina F-Box/genética , Proteínas Ligases SKP Culina F-Box/metabolismo , Serina-Treonina Quinases TOR/genética , Serina-Treonina Quinases TOR/metabolismo , Carga Tumoral , Aumento de Peso , Redução de Peso
5.
Cir Cir ; 85(6): 471-477, 2017.
Artigo em Espanhol | MEDLINE | ID: mdl-27955857

RESUMO

BACKGROUND: Diverticular disease is common in industrialized countries. Computed tomography has been used as the preferred diagnostic method; although different scales haves been described to classify the disease, none of them encompass total disease aspects and behaviour. OBJETIVE: To analyze the patients with acute diverticulitis confirmed by computed tomography at the ABC Medical Center Campus Observatorio from January 1, 2010 to December 31, 2012, in whom pericolic free air in the form of bubbles was identified by computed tomography and if this finding can be considered as a prognostic factor for the disease. METHODS: A series of 124 patients was analyzed who had acute diverticulitis confirmed by computed tomography, in order to identify the presence of pericolic bubbles. RESULTS: Of the 124 patients, 29 presented with pericolic bubbles detected by computed tomography; of these, 62.1% had localized peritoneal signs at the time of the initial assessment, (P<.001); leukocytosis (13.33 vs 11.16, P<.001) and band count (0.97 vs 0.48, P<.001) was higher in this group. Patients with pericolonic bubbles had a longer hospital stay (5.5days vs 4.3days, P<.001) and started and tolerated liquids later (4.24days vs. 3.02days, P<.001) than the group of patients without this finding. CONCLUSIONS: The presence of pericolic bubbles in patients with acute diverticulitis can be related to a more aggressive course of the disease.


Assuntos
Ar , Doença Diverticular do Colo/diagnóstico por imagem , Tomografia Computadorizada por Raios X , Doença Aguda , Idoso , Tratamento Conservador , Doença Diverticular do Colo/complicações , Doença Diverticular do Colo/cirurgia , Doença Diverticular do Colo/terapia , Nutrição Enteral , Feminino , Humanos , Tempo de Internação/estatística & dados numéricos , Leucocitose/etiologia , Masculino , Pessoa de Meia-Idade , Cavidade Peritoneal/diagnóstico por imagem , Peritonite/diagnóstico , Peritonite/etiologia , Prognóstico , Estudos Retrospectivos , Índice de Gravidade de Doença
6.
Nutrition ; 32(5): 546-52, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-26777439

RESUMO

OBJECTIVE: Iron deficiency is likely the most common nutritional deficiency worldwide; low iron concentrations have been related to alterations in immune system functions; therefore, the aim of this study was to determine the effect of low serum iron (LSI) concentrations on the production of proinflammatory cytokines by peripheral blood leukocytes in 8- to 12-y-old children from a local community. METHODS: We obtained 120 blood samples and determined full blood counts and serum iron concentrations. An LSI and a control group, paired by age and sex were established using serum iron <60 µg/dL as the cutoff point. Ferritin and C-reactive protein concentrations were quantified. Serum interferon (IFN)-γ and tumor necrosis factor (TNF)-α concentrations were measured in these groups by enzyme-linked immunosorbent assay. A second blood sample was taken from children in both groups to isolate peripheral blood mononuclear cells (PBMCs) and measure IFN-γ and TNF-α production by unstimulated and lipopolysaccharide/phorbol myristate acetate/ionomycin-stimulated leukocytes in vitro. RESULTS: Of the participants in the present study, 17.5% (21 children) presented LSI, as well as decreased ferritin concentrations. Differential counts from total blood samples showed a significant increase in leukocyte numbers in the LSI group, along with increased neutrophil frequencies and numbers but decreased lymphocyte frequencies. Decreased serum IFN-γ concentrations and decreased in vitro production of IFN-γ by PBMCs were found in the LSI group. CONCLUSIONS: The results of the present study suggest that low iron levels alter leukocyte subpopulations in circulation and have a detrimental effect on leukocyte production of proinflammatory cytokines after an antigenic challenge.


Assuntos
Anemia Ferropriva/fisiopatologia , Doenças Assintomáticas , Fenômenos Fisiológicos da Nutrição Infantil , Interferon gama/metabolismo , Leucócitos Mononucleares/imunologia , Leucocitose/etiologia , Fator de Necrose Tumoral alfa/metabolismo , Anemia Ferropriva/sangue , Anemia Ferropriva/imunologia , Anemia Ferropriva/metabolismo , Contagem de Células Sanguíneas , Proteína C-Reativa/análise , Ionóforos de Cálcio/farmacologia , Criança , Feminino , Ferritinas/sangue , Humanos , Interferon gama/biossíntese , Interferon gama/sangue , Ionomicina/farmacologia , Ferro/sangue , Leucócitos Mononucleares/efeitos dos fármacos , Leucócitos Mononucleares/metabolismo , Lipopolissacarídeos/farmacologia , Masculino , México , Mitógenos/farmacologia , Acetato de Tetradecanoilforbol/análogos & derivados , Acetato de Tetradecanoilforbol/farmacologia , Fator de Necrose Tumoral alfa/biossíntese , Fator de Necrose Tumoral alfa/sangue
7.
Int J Gynaecol Obstet ; 132(1): 17-9, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26431590

RESUMO

OBJECTIVE: To determine the clinical characteristics that indicate the presence of tubo-ovarian abscess (TOA) among patients with severe pelvic inflammatory disease (PID). METHODS: An observational cohort study was performed from October 2011 to March 2013. The study included all patients with a diagnosis of TOA and PID admitted to a university hospital in Mexico. A complete medical history and physical examination were performed, and laboratory studies were reviewed. A logistic regression analysis was performed on variables with statistical significance. RESULTS: Overall, 26 patients with PID and TOA (TOA group) and 26 with PID without TOA (PID group) were included in the study. Significant differences between patients with TOA and PID were found with regard to the patients' age (39.3years vs 33.1years; P=0.04), educational level (only elementary, 13 [50%] vs 5 [19%]; P=0.14), presentation with fever (23 [88%] vs 16 [62%]; P=0.025), white blood cell count (21.8×10(9)/L vs 14.9×10(9)/L; P<0.001), number of deliveries (2.2 vs 1.1; P=0.01), and presence of diarrhea (16 [62%] vs 5 [19%]; P<0.001). The triad of fever, leukocytosis, and diarrhea was positively related to the presence of TOA. CONCLUSION: The triad of fever, leukocytosis, and diarrhea should alert clinicians to the possibility of TOA formation in patients with PID.


Assuntos
Abscesso/diagnóstico , Doenças das Tubas Uterinas/diagnóstico , Doenças Ovarianas/diagnóstico , Doença Inflamatória Pélvica/diagnóstico , Abscesso/complicações , Adolescente , Adulto , Fatores Etários , Estudos de Coortes , Diarreia/etiologia , Doenças das Tubas Uterinas/complicações , Feminino , Febre/etiologia , Humanos , Leucocitose/etiologia , Modelos Logísticos , México , Pessoa de Meia-Idade , Doenças Ovarianas/complicações , Doença Inflamatória Pélvica/complicações , Adulto Jovem
9.
Actual. osteol ; 12(2): 142-146, 2016. ilus
Artigo em Espanhol | LILACS, UNISALUD, BINACIS | ID: biblio-1373454

RESUMO

El síndrome TAR (Thrombocytopenia with Absent Radius) es una patología congénita autosómica recesiva infrecuente, caracterizada por trombocitopenia con aplasia de radio bilateral. Incluye malformaciones esqueléticas, renales, hematológicas y cardíacas. Su base genética todavía no está clara. Presentamos el caso de una paciente sin diagnóstico previo de síndrome TAR que llega a la consulta, tras haber sido evaluada por varios profesionales médicos, para el diagnóstico y el tratamiento de trastornos hematológicos, que finalmente estuvieron asociados a su síndrome congénito. (AU)


Thrombocytopenia with Absent Radius (TAR) is a rare autosomic recessive disease characterized by thrombocytopenia and bilateral radial aplasia, which includes skeletal, hematologic, renal and cardiac abnormalities. The genetics bases of this syndrome remain unclear. We report here a patient without a previous diagnosis of TAR syndrome who was seen in the clinic, after being evaluated by several medical professionals for diagnosis and treatment of blood disorders, which eventually were associated with the congenital syndrome. (AU)


Assuntos
Humanos , Feminino , Adulto , Rádio (Anatomia)/anormalidades , Trombocitopenia/complicações , Síndrome , Trombocitopenia/genética , Trombocitopenia/patologia , Trombocitopenia/sangue , Diagnóstico Diferencial , Leucocitose/etiologia
10.
Cir Cir ; 83(1): 65-9, 2015.
Artigo em Espanhol | MEDLINE | ID: mdl-25982612

RESUMO

BACKGROUND: The intestinal obstruction secondary to internal hernia is a diagnostic challenge. The absence of specific symptoms and signs during clinical examination often lead to underestimation of the severity and early surgical treatment. The purpose of this article is to review the clinical presentation of two patients with internal hernia, describe the clinical, biochemical and radiological findings, with emphasis on the L-lactate as an early serum marker of intestinal ischemia. CLINICAL CASES: Case 1: female, 44 years history of urolithiasis and 2 cesarean sections. Case 2: female, 86 year old with a history of open cholecystectomy, incisional and bilateral inguinal hernia repair with mesh placement. Both admitted with abdominal pain and intestinal obstruction data. The only significant laboratory finding was elevation of L-lactate. The abdominal films showed air-fluid levels, dilated loops of small intestine and colon. Abdominal contrast tomography showed free abdominal fluid id, internal hernia and torque of mesentery. In both cases, exploratory laparotomy was performed with bowel resection of ischemic segments, with uneventful recovery. CONCLUSIONS: Intestinal ischemia secondary to internal hernia is difficult lt to diagnose. In patients with a high suspicion, signs of intestinal obstruction by plain radiography, the elevation of L-lactate, could help in the early diagnosis of intestinal ischemia and immediate surgical treatment.


Assuntos
Doenças do Colo/complicações , Hérnia Abdominal/complicações , Hérnia/complicações , Doenças do Íleo/complicações , Obstrução Intestinal/sangue , Intestinos/irrigação sanguínea , Lactatos/sangue , Isquemia Mesentérica/etiologia , Anormalidade Torcional/sangue , Dor Abdominal/etiologia , Adulto , Idoso de 80 Anos ou mais , Anastomose Cirúrgica , Biomarcadores , Doenças do Colo/cirurgia , Colostomia , Feminino , Hérnia Inguinal/cirurgia , Herniorrafia , Humanos , Doenças do Íleo/cirurgia , Obstrução Intestinal/etiologia , Intestinos/cirurgia , Laparotomia , Leucocitose/etiologia , Mesentério , Pneumatose Cistoide Intestinal/etiologia , Complicações Pós-Operatórias/sangue , Complicações Pós-Operatórias/etiologia , Telas Cirúrgicas , Anormalidade Torcional/etiologia
11.
Rev. bras. pesqui. méd. biol ; Braz. j. med. biol. res;47(6): 492-498, 06/2014. tab, graf
Artigo em Inglês | LILACS | ID: lil-709444

RESUMO

The effect of an adventure sprint race (ASR) on T-cell proliferation, leukocyte count and muscle damage was evaluated. Seven young male runners completed an ASR in the region of Serra do Espinhaço, Brazil. The race induced a strong leukocytosis (6.22±2.04×103 cells/mm3 before vs 14.81±3.53×103 cells/mm3 after the race), marked by a significant increase of neutrophils and monocytes (P<0.05), but not total lymphocytes, CD3+CD4+ or CD3+CD8+ cells. However, the T-cell proliferative response to mitogenic stimulation was increased (P=0.025) after the race, which contradicted our hypothesis that ASR, as a high-demand competition, would inhibit T-cell proliferation. A positive correlation (P=0.03, r=0.79) was observed between the proliferative response of lymphocytes after the race and the time to complete the race, suggesting that the proliferative response was dependent on exercise intensity. Muscle damage was evident after the race by increased serum levels of aspartate amino transferase (24.99±8.30 vs 50.61±15.76 U/L, P=0.003). The results suggest that humoral factors and substances released by damaged muscle may be responsible for lymphocyte activation, which may be involved in muscle recovery and repair.


Assuntos
Adulto , Humanos , Masculino , Proliferação de Células/fisiologia , Leucocitose/imunologia , Músculo Esquelético/lesões , Resistência Física/imunologia , Corrida/lesões , Linfócitos T/imunologia , Alanina Transaminase/sangue , Aspartato Aminotransferases/sangue , Citometria de Fluxo , Terapia de Imunossupressão , Contagem de Leucócitos , Leucocitose/etiologia , Monócitos/imunologia , Músculo Esquelético/imunologia , Neutrófilos/imunologia , Resistência Física/fisiologia , Corrida/fisiologia , Linfócitos T Citotóxicos/fisiologia , Linfócitos T Auxiliares-Indutores/fisiologia , Fatores de Tempo
12.
Braz J Med Biol Res ; 47(6): 492-8, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24676476

RESUMO

The effect of an adventure sprint race (ASR) on T-cell proliferation, leukocyte count and muscle damage was evaluated. Seven young male runners completed an ASR in the region of Serra do Espinhaço, Brazil. The race induced a strong leukocytosis (6.22±2.04×10(3) cells/mm3 before vs 14.81±3.53×10(3) cells/mm3 after the race), marked by a significant increase of neutrophils and monocytes (P<0.05), but not total lymphocytes, CD3+ CD4+ or CD3+ CD8+ cells. However, the T-cell proliferative response to mitogenic stimulation was increased (P=0.025) after the race, which contradicted our hypothesis that ASR, as a high-demand competition, would inhibit T-cell proliferation. A positive correlation (P=0.03, r=0.79) was observed between the proliferative response of lymphocytes after the race and the time to complete the race, suggesting that the proliferative response was dependent on exercise intensity. Muscle damage was evident after the race by increased serum levels of aspartate amino transferase (24.99±8.30 vs 50.61±15.76 U/L, P=0.003). The results suggest that humoral factors and substances released by damaged muscle may be responsible for lymphocyte activation, which may be involved in muscle recovery and repair.


Assuntos
Proliferação de Células/fisiologia , Leucocitose/imunologia , Músculo Esquelético/lesões , Resistência Física/imunologia , Corrida/lesões , Linfócitos T/imunologia , Adulto , Alanina Transaminase/sangue , Aspartato Aminotransferases/sangue , Citometria de Fluxo , Humanos , Terapia de Imunossupressão , Contagem de Leucócitos , Leucocitose/etiologia , Masculino , Monócitos/imunologia , Músculo Esquelético/imunologia , Neutrófilos/imunologia , Resistência Física/fisiologia , Corrida/fisiologia , Linfócitos T Citotóxicos/fisiologia , Linfócitos T Auxiliares-Indutores/fisiologia , Fatores de Tempo
13.
Hematology Am Soc Hematol Educ Program ; 2014(1): 457-60, 2014 Dec 05.
Artigo em Inglês | MEDLINE | ID: mdl-25696894

RESUMO

Patients presenting with new or recurrent acute leukemia, particularly of the myeloid lineage, with WBC counts exceeding 100 × 10(9)/L are often considered for leukocytapheresis, especially if they are experiencing symptoms of leukostasis. These symptoms are thought to occur because of blast aggregates and WBC thrombi in the circulation, which reduce blood flow. Leukostasis may cause various complications, including hyperviscosity syndrome, vascular occlusion resulting in intracranial hemorrhages and respiratory failure, and perivascular leukemic infiltrates. Leukostasis occurs more commonly with a high WBC count and with leukemias of monocytoid lineage such as acute myelomonocytic leukemia, which is a reflection of the nature of the leukemic blasts. Leukocytapheresis is used in an effort to quickly decrease a patient's circulating blast count, which can both prevent the development of leukostasis and provide symptomatic relief of leukostasis. However, the impact of leukocytapheresis on early- and long-term mortality is controversial, with several studies producing conflicting results. In this chapter, the pathophysiology of leukostasis, performance of leukocytapheresis, and efficacy of this treatment are reviewed.


Assuntos
Leucaférese , Leucemia/complicações , Leucocitose/etiologia , Leucocitose/terapia , Doença Aguda , Humanos , Troca Plasmática , Resultado do Tratamento
14.
Parasitol Res ; 112(6): 2151-7, 2013 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23494155

RESUMO

This study compared the course of infection by Ancylostoma caninum and Ancylostoma braziliense in mixed-breed dogs infected with L3 larvae. Dogs infected with A. caninum eliminated more eggs than did those infected with A. braziliense. A total of 38 % of A. caninum and 44 % of A. braziliense larvae were recovered as adult worms. There were no marked clinical abnormalities in dogs with either infection. A. caninum was associated with anemia and an increased number of circulating neutrophils, whereas infection with A. braziliense led to a decrease in the number of leukocytes. The humoral response against excreted and secreted antigens from adult worms was more sensitive and specific than the response induced with the crude antigen. No immune response was observed for either crude or excreted-secreted (ES) antigens from larvae of either species. A nonspecific response against the crude antigen of A. braziliense was found at 0 and 7 days postinfection and maintained throughout the infection period. However, antibody titers against ES antigens were elevated in A. caninum infection at patency and death, showing that this antigen has a higher specificity. The immune response elicited by infection with A. braziliense in dogs has not been described previously. No significant differences were observed in the infection processes of the two Ancylostoma species, except for the higher number of eggs eliminated from dogs infected with A. caninum, which may indicate a better evolutionary adaptation of the parasite to its host in comparison with A. braziliense.


Assuntos
Ancilostomíase/patologia , Ancilostomíase/parasitologia , Doenças do Cão/patologia , Doenças do Cão/parasitologia , Ancylostoma/patogenicidade , Ancilostomíase/complicações , Ancilostomíase/imunologia , Anemia/etiologia , Animais , Anticorpos Anti-Helmínticos/sangue , Modelos Animais de Doenças , Cães , Fezes/parasitologia , Leucocitose/etiologia , Neutropenia/etiologia , Contagem de Ovos de Parasitas
15.
Arch. pediatr. Urug ; 84(3): 205-209, 2013. tab
Artigo em Espanhol | LILACS | ID: lil-754191

RESUMO

Se presentan dos casos de tos convulsa con leucocitosis elevada e hipertensión pulmonar que se beneficiaron de exsanguinotransfusión. Casos clínicos: se trató de un recién nacido de 27 días y una lactante de 2 meses que tuvieron diagnóstico clínico y de laboratorio de tos convulsa. La hiperleucocitosis en aumento y el hallazgo de hipertensión pulmonar en el ecocardiograma unido a la necesidad de asistencia ventilatoria mecánica con necesidades elevadas de O2 planteó la necesidad de realizar exsanguinotransfusión. La técnica se realizó en ambos casos sin inconvenientes y la evolución fue favorable. Discusión: la tos convulsa, al igual que en varias partes del mundo, constituye un problema para los lactantes pequeños, no protegidos por la inmunización. Una de las complicaciones es el desarrollo de cifras altas de leucocitos y de hipertensión pulmonar. La reducción de la masa leucocitaria a través de leucorreducción o exsanguinotransfusión se aconsejan en estos casos. No encontramos descripciones previas de su uso en nuestro medio...


Assuntos
Humanos , Recém-Nascido , Lactente , Transfusão de Sangue , Hipertensão Pulmonar/etiologia , Leucocitose/etiologia , Coqueluche/complicações , Coqueluche/mortalidade , Coqueluche/terapia , Imunização
16.
Arch. pediatr. Urug ; 84(3): 205-209, 2013. ilus
Artigo em Espanhol | BVSNACUY | ID: bnu-17593

RESUMO

Se presentan dos casos de tos convulsa con leucocitosis elevada e hipertensión pulmonar que se beneficiaron de exsanguinotransfusión. Casos clínicos: se trató de un recién nacido de 27 días y una lactante de 2 meses que tuvieron diagnóstico clínico y de laboratorio de tos convulsa. La hiperleucocitosis en aumento y el hallazgo de hipertensión pulmonar en el ecocardiograma unido a la necesidad de asistencia ventilatoria mecánica con necesidades elevadas de O2 planteó la necesidad de realizar exsanguinotransfusión. La técnica se realizó en ambos casos sin inconvenientes y la evolución fue favorable. Discusión: la tos convulsa, al igual que en varias partes del mundo, constituye un problema para los lactantes pequeños, no protegidos por la inmunización. Una de las complicaciones es el desarrollo de cifras altas de leucocitos y de hipertensión pulmonar. La reducción de la masa leucocitaria a través de leucorreducción o exsanguinotransfusión se aconsejan en estos casos. No encontramos descripciones previas de su uso en nuestro medio.


Assuntos
Humanos , Recém-Nascido , Lactente , Coqueluche/complicações , Coqueluche/mortalidade , Coqueluche/terapia , Leucocitose/etiologia , Hipertensão Pulmonar/etiologia , Transfusão de Sangue , Imunização
17.
J Pediatr ; 161(6): 1169-71, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-22985722

RESUMO

This prospective multicenter study of 200 patients with fever-associated status epilepticus (FSE), of whom 136 underwent a nontraumatic lumbar puncture, confirms that FSE rarely causes cerebrospinal fluid (CSF) pleocytosis. CSF glucose and protein levels were unremarkable. Temperature, age, seizure focality, and seizure duration did not affect results. CSF pleocytosis should not be attributed to FSE.


Assuntos
Convulsões Febris/líquido cefalorraquidiano , Estado Epiléptico/líquido cefalorraquidiano , Biomarcadores/líquido cefalorraquidiano , Proteínas do Líquido Cefalorraquidiano/metabolismo , Criança , Glucose/líquido cefalorraquidiano , Humanos , Leucócitos/metabolismo , Leucocitose/líquido cefalorraquidiano , Leucocitose/etiologia , Estudos Prospectivos , Convulsões Febris/fisiopatologia , Punção Espinal , Estado Epiléptico/etiologia
18.
Cir Cir ; 80(6): 516-22, 2012.
Artigo em Espanhol | MEDLINE | ID: mdl-23336145

RESUMO

BACKGROUND: in Mexico, the management of abdominal penetrating trauma doesn't follow the algorithms of Trauma Center level I, because of our limitations, and laparotomies are inevitable in this context. Is possible use some grade of leukocytosis suspect in-trabdominal lesion? METHODS: study retrospective, descriptive and analytic that inclu-ded patients with abdominal penetrating trauma that suffered exploratory laparotomy. We excluded patients' whit severe damage to soft tissues in extremities, thoracic affection, fractures, or da-mage in nervous system. We divided the patients into 2 groups: group I (therapeutic laparotomy) and group II (non-therapeutic laparotomy). Dependent variables were; age, gender, type of injury, number of lesions, peripheral lesions, time between injury and, from a laboaratory blood sample, leukocytosis mean, percentage of neutrophils, leukocytosis ≥ 12,500 /mm(3), and hemoperitoneum. We compared variables between two groups and use Pearson's χ(2) test and T-Student, and percentages as summary of measures. RESULTS: we included 231 patients, group I with 159 patients and group II with 72 patients. Leukocytosis global was 13.2 mil/mm(3) and neutrophil range of 70.3%. 26% of patients did not have leukocytosis at arrival and evaluation, however they were laparotomized because of present peritoneal irritation. Leukocytosis ≥ 12.5 mil/mm(3) was statistically significant in patients with intrabdominal lesions (74.2% vs 27.7%, p < 0.001). CONCLUSIONS: leukocytosis ≥ 12.5 mil/mm(3) could be an early serum marker abdominal penetrating trauma.


Assuntos
Traumatismos Abdominais/sangue , Leucocitose/etiologia , Peritônio/lesões , Cuidados Pré-Operatórios , Vísceras/lesões , Ferimentos Penetrantes/sangue , Traumatismos Abdominais/diagnóstico , Traumatismos Abdominais/epidemiologia , Traumatismos Abdominais/cirurgia , Adolescente , Adulto , Feminino , Hemoperitônio/epidemiologia , Hemoperitônio/etiologia , Humanos , Laparotomia/métodos , Laparotomia/estatística & dados numéricos , Tempo de Internação/estatística & dados numéricos , Contagem de Leucócitos , Masculino , México/epidemiologia , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Estudos Retrospectivos , Centros de Traumatologia/estatística & dados numéricos , Triagem , Vísceras/cirurgia , Ferimentos por Arma de Fogo/sangue , Ferimentos por Arma de Fogo/diagnóstico , Ferimentos por Arma de Fogo/epidemiologia , Ferimentos por Arma de Fogo/cirurgia , Ferimentos Penetrantes/diagnóstico , Ferimentos Penetrantes/epidemiologia , Ferimentos Penetrantes/cirurgia , Ferimentos Perfurantes/sangue , Ferimentos Perfurantes/diagnóstico , Ferimentos Perfurantes/epidemiologia , Ferimentos Perfurantes/cirurgia , Adulto Jovem
19.
J Infect Dev Ctries ; 5(4): 260-9, 2011 Apr 26.
Artigo em Inglês | MEDLINE | ID: mdl-21537067

RESUMO

INTRODUCTION: Eosinophilia and anemia are very common hematological alterations in the tropics but population-based studies scrutinizing their value for diagnosing parasitic infections are rare. METHODOLOGY: A cross-sectional study was conducted in a rural district in northeast Brazil where parasitic infections are common. Stool and blood samples were collected and individuals were clinically examined for the presence of ectoparasites. RESULTS: In total, 874 individuals were examined. Infection with intestinal helminths occurred in 70% (95% CI 67 - 75), infestation with ectoparasites in 45% (95% CI 42 - 49) and co-infection with both helminths and ectoparasites was found in 33% (95% CI 29% - 36%) of all inhabitants. Eosinophil counts ranged from 40/µl to 13.800/µl (median: 900/µl). Haemoglobin levels ranged from 4.8 g/dl to 16.8 g/dl (median: 12.5 g/dl), and anemia was present in 24% of the participants. Leukocytosis was found in 13%, eosinophilia in 74%, and hypereosinophilia in 44% of the participants. Eosinophilia was more pronounced in individuals co-infected with intestinal helminths and ectoparasites (p < 0.001) and correctly predicted parasitic infection in 87% (95% CI 84%-90.7%) of all cases. CONCLUSIONS: Eosinophilia is strongly associated with the presence of intestinal helminthiases and accentuated by co-infestation with ectoparasites. Our study confirms in a population with high prevalence of intestinal helminthiases and ectoparasites that eosinophilia can be used to accurately diagnose current parasitic infection and initiate treatment.


Assuntos
Anemia/epidemiologia , Ectoparasitoses/complicações , Ectoparasitoses/epidemiologia , Eosinofilia/epidemiologia , Helmintíase/complicações , Helmintíase/epidemiologia , Leucocitose/epidemiologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Anemia/etiologia , Brasil/epidemiologia , Criança , Pré-Escolar , Comorbidade , Estudos Transversais , Ectoparasitoses/patologia , Eosinofilia/etiologia , Fezes/parasitologia , Feminino , Helmintíase/patologia , Testes Hematológicos , Humanos , Lactente , Leucocitose/etiologia , Masculino , Pessoa de Meia-Idade , População Rural , Adulto Jovem
20.
Int J Gynecol Cancer ; 20(7): 1154-9, 2010 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-21495217

RESUMO

OBJECTIVE: The aim of the study was to evaluate blood leukocyte counts in patients with uterine cervical neoplasia. METHODS: Patients treated at a university hospital were reviewed retrospectively. Disease progression was monitored, beginning in 1990 to 2002, for at least 5 years. Blood count parameters included absolute leukocyte, neutrophil and lymphocyte counts, leukocytosis (white blood cells > 10³/µL), neutrophilia (neutrophils ≥ 70% of leukocytes), lymphopenia (lymphocytes ≤ 15% of leukocytes), and the neutrophil-lymphocyte ratio (NLR), categorized as less than 5 or 5 or greater. RESULTS: A total of 315 patients were enrolled: 182 (57.8%) with preinvasive neoplasia (cervical intraepithelial neoplasia [CIN] group), 95 (30.1%) with stages I to II (early group), and 38 patients (12.1%) with stages III to IV neoplasia (advanced group). Neutrophil and lymphocyte counts were elevated and reduced, respectively, at advanced stages compared with the CIN group (P < 0.05). Leukocytosis, neutrophilia, lymphopenia, and an NLR of 5 or greater were more frequent at advanced stages compared with the CIN and early-stage groups (P < 0.05). Moreover, neutrophilia was also significantly more frequent at early stage compared with the CIN group. The advanced group with neutrophilia had increased frequency of recidivism and metastasis than patients in the CIN group with neutrophilia (P < 0.05). CONCLUSIONS: Patients with advanced cervical cancer had significantly higher frequency of leukocyte alterations, although they may occur apart from the preinvasive stages. Overall, neutrophilia was the best indicator of cancer invasiveness.


Assuntos
Carcinoma de Células Escamosas/secundário , Leucocitose/etiologia , Displasia do Colo do Útero/secundário , Neoplasias do Colo do Útero/patologia , Carcinoma de Células Escamosas/patologia , Feminino , Humanos , Contagem de Leucócitos , Leucocitose/patologia , Linfopenia/etiologia , Linfopenia/patologia , Invasividade Neoplásica , Estadiamento de Neoplasias , Neutrófilos/patologia , Prognóstico , Estudos Retrospectivos , Taxa de Sobrevida , Neoplasias do Colo do Útero/sangue , Displasia do Colo do Útero/patologia
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