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1.
Colomb. med ; 54(3)sept. 2023.
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1534294

RESUMO

Background: Among the chronic myeloproliferative neoplasms (MPNs) not associated with BCR-ABL mutations are polycythemia vera, primary myelofibrosis, and essential thrombocythemia. These diseases are caused by mutations in genes, such as the JAK2, MPL, and CALR genes, which participate in regulating the JAK-STAT signaling pathway. Objective: This study aimed to establish the frequencies of mutations in the JAK2, MPL, and CALR genes in a group of Colombian patients with a negative clinical diagnosis of BCR-ABL chronic myeloproliferative neoplasms. Methods: The JAK2 V617F and MPL W515K mutations and deletions or insertions in exon 9 of the CALR gene were analyzed in 52 Colombian patients with polycythemia vera, primary myelofibrosis, and essential thrombocythemia. Results: The JAK2V617F mutation was carried by 51.9% of the patients, the CALR mutation by 23%, and the MPL mutation by 3.8%; 23% were triple-negative for the mutations analyzed. In these neoplasms, 6 mutation types in CALR were identified, one of which has not been previously reported. Additionally, one patient presented a double mutation in both the CALR and JAK2 genes. Regarding the hematological results for the mutations, significant differences were found in the hemoglobin level, hematocrit level, and platelet count among the three neoplasms. Conclusion: Thus, this study demonstrates the importance of the molecular characterization of the JAK2, CALR and MPL mutations in Colombian patients (the genetic context of which remains unclear in the abovementioned neoplasms) to achieve an accurate diagnosis, a good prognosis, adequate management, and patient survival.


Antecedentes: Entre las neoplasias mieloproliferativas crónicas no asociadas con mutaciones BCR-ABL se encuentran la policitemia vera, la mielofibrosis primaria y la trombocitemia esencial. Estas enfermedades están causadas por mutaciones en genes, como los genes JAK2, MPL y CALR, que participan en la regulación de la vía de señalización JAK-STAT. Objetivo: Establecer las frecuencias de mutaciones en los genes JAK2, MPL y CALR en un grupo de pacientes colombianos con diagnóstico clínico negativo de NMP BCR-ABL. Metodos: Se analizaron las mutaciones y deleciones o inserciones JAK2 V617F y MPL W515K en el exón 9 del gen CALR en 52 pacientes colombianos con policitemia vera, mielofibrosis primaria y trombocitemia esencial. Resultados: La mutación JAK2V617F la portaban el 51.9% de los pacientes, la mutación CALR el 23.0% y la mutación MPL el 3.8%; El 23.0% fueron triple negativos para las mutaciones analizadas. En estas neoplasias se identificaron seis tipos de mutación en CALR, uno de los cuales no ha sido reportado previamente. Además, un paciente presentó una doble mutación tanto en el gen CALR como en el JAK2. En cuanto a los resultados hematológicos para las mutaciones, se encontraron diferencias significativas en el nivel de hemoglobina, el nivel de hematocrito y el recuento de plaquetas entre las tres neoplasias. Conclusiones: Así, este estudio demuestra la importancia de la caracterización molecular de las mutaciones JAK2, CALR y MPL en pacientes colombianos (cuyo contexto genético aún no está claro en las neoplasias antes mencionadas) para lograr un diagnóstico certero, un buen pronóstico, un manejo adecuado y una mejoría del paciente. supervivencia.

2.
Artigo em Espanhol | LILACS, CUMED | ID: biblio-1530101

RESUMO

Introducción: La trombocitemia esencial es una neoplasia mieloproliferativa crónica caracterizada por una trombocitosis mantenida en sangre periférica y una hiperplasia de megacariocitos maduros en médula ósea, con características histológicas y moleculares específicas. Objetivo: Caracterizar los pacientes adultos con trombocitemia esencial en el Instituto de Hematología e Inmunología. Métodos: Se realizó un estudio observacional, descriptivo, longitudinal y retrospectivo. El universo estuvo conformado por 40 pacientes adultos con trombocitemia esencial diagnosticados y tratados con trombocitemia esencial, en el Instituto de Hematología e Inmunología desde enero del 2010 hasta enero del 2020. Los datos se almacenaron en una base de datos confeccionada con el programa SPSS v.25.0 para Windows, a partir de la cual fueron procesados. Resultados: El promedio de edad al diagnóstico fue 52,2 años y una mediana de 51 años. El 80 % correspondió al sexo femenino y el 62,5 % de los pacientes tenían el color de la piel blanca. El 85 % de los pacientes presentaron recuento de plaquetas en el rango entre 450-1500 ( 109/L. El 52,1 % de los casos presentó aumento de la enzima lactato deshidrogenasa y la mutación del JAK2V617F representó el 67,5 %. La supervivencia global en años fue 35,5 y la supervivencia libre de enfermedad fue 32,5 años. Conclusiones: Los pacientes adultos con trombocitemia esencial tienen una supervivencia global y libre de enfermedad significativamente elevada, con baja incidencia de eventos trombóticos y el tratamiento empleado de primera línea se relacionó con la respuesta hematológica estable de los pacientes.


Introduction: Essential thrombocythemia is a chronic myeloproliferative neoplasm characterized by thrombocytosis maintained in peripheral blood and hyperplasia of mature megakaryocytes in bone marrow, with specific histological and molecular characteristics. General: To characterize of adult patients with essential thrombocythemia in the Institute of Hematology and Immunology. Methods: An observational, descriptive, longitudinal and retrospective study was conducted. The universe consisted of 40 adult patients diagnosed and treated with essential thrombocythemia at the Institute of Hematology and Immunology from January 2010 to January 2020. The data obtained were stored in a database made with the program SPSS v 25.0 for Windows, from which they were processed. Results: The average age at diagnosis was 52,2 years and a median of 51 years. 80% occurred in females and 62,5% of patients were white. 85% of the patients had platelet counts in therange between 450-1500 ( 109/L. An increase in the enzyme lactate dehydrogenase was observed in 52,1% of the cases, and the JAK2V617Fmutationaccountedfor 67,5%. The overall survival in years was 35,5 and the disease-free survival was 32.5 years. Conclusions: Adult patients with essential thrombocythemia have significantly increased overall and disease-free survival, with low incidence of thrombotic events and first-line treatment was associated with stable hematological response of patients.


Assuntos
Humanos
3.
Ginecol. obstet. Méx ; 91(10): 788-797, ene. 2023. tab, graf
Artigo em Espanhol | LILACS-Express | LILACS | ID: biblio-1557825

RESUMO

Resumen ANTECEDENTES: La coexistencia de neoplasias mieloproliferativas durante el embarazo puede derivar en complicaciones para la madre y el feto, de ahí la indispensable necesidad de detectarlas oportunamente. CASO CLÍNICO: Paciente de 30 años, primigesta. En el control prenatal se detectó una elevación significativa de plaquetas y leucocitos. Luego de descartar un proceso infeccioso e interconsulta con el hematólogo se le indicó un antiagregante plaquetario. El embarazo transcurrió sin complicaciones de tipo trombótico o hemorrágico y finalizó mediante cesárea a las 40 semanas, indicada por falta de progresión del trabajo de parto. Posteriormente se inició el tratamiento específico para la enfermedad y seguimiento. METODOLOGÍA: La búsqueda de artículos publicados durante los últimos 20 años se efectuó en las bases de datos PubMed y Clínical Key con los MeSH "essential thrombocytemia AND pregnancy", "hematological neoplasms AND pregnancy". RESULTADOS: Se obtuvieron 14 artículos de los que se excluyeron 3 por no incluir a mujeres embarazadas. La revisión final fue de 11 artículos. CONCLUSIONES: El seguimiento correcto del control prenatal permite advertir las complicaciones médicas independientes del embarazo. Cuando así sucede es posible la intervención oportuna y la participación de otros especialistas que confirmen el diagnóstico para, en conjunto, tomen la mejor decisión en beneficio de la madre y su hijo por nacer.


Abstract BACKGROUND: The coexistence of myeloproliferative neoplasms during pregnancy may lead to maternal and fetal complications, and early detection is essential. CLINICAL CASE: A 30-year-old primigravida. Prenatal examination revealed a significant increase in platelets and leukocytes. After exclusion of an infectious process and consultation with the haematologist, she was prescribed an antiplatelet agent. The pregnancy proceeded without thrombotic or haemorrhagic complications and was terminated by caesarean section at 40 weeks, indicated for lack of progress in labour. Specific treatment of the disease and follow-up were then initiated. METHODOLOGY: Articles published in the last 20 years were searched in PubMed and Clinical Key databases using MeSH "essential thrombocythemia AND pregnancy", "haematological neoplasms AND pregnancy". RESULTS: We obtained 14 articles, of which 3 were excluded because they did not include pregnant women. The final review consisted of 11 articles. CONCLUSIONS: Correct follow-up of antenatal care can warn of medical complications independent of pregnancy. In this case, timely intervention and involvement of other specialists is possible to confirm the diagnosis and make the best joint decision for the benefit of the mother and her unborn child.

4.
Artigo em Espanhol | LILACS, CUMED | ID: biblio-1441607

RESUMO

Introducción: La frecuencia de la mutación JAK2V617F se estima entre el 50 y 60 por ciento en pacientes con trombocitemia esencial y mielofibrosis primaria. El 30 por ciento de los pacientes con policitemia vera y mielofibrosis primaria. Entre 2-4 por ciento de los pacientes con trombocitemia esencial presentan pérdida de heterocigosidad. Objetivos: Evaluar la influencia de la carga alélica de la mutación JAK2V617F y su relación con variables clínico-hematológicas en el diagnóstico de estas enfermedades en pacientes cubanos. Métodos: Se realizó un estudio retrospectivo, descriptivo y longitudinal en el Instituto de Hematología e Inmunología entre 2010 y 2020. Se incluyeron todos los pacientes con sospecha de trombocitemia esencial y mielofibrosis primaria con muestras de ADN válidas. Se les cuantificó la carga alélica de la mutación por PCR en tiempo real. Resultados: Se detectó la mutación en 66,7 por ciento de los diagnosticados con trombocitemia esencial y mielofibrosis primaria. El 62,5 por ciento de los pacientes con mielofibrosis primaria fueron homocigotos a la mutación, mientras que en la trombocitemia esencial solo el 20,8 por ciento. La diferencia de medias de cargas alélicas entre ambas enfermedades fue estadísticamente significativa. No se encontraron diferencias significativas en la comparación de las variables clínicas y hematológicas en estas enfermedades ni asociación con la carga alélica con excepción de las plaquetas en la mielofibrosis primaria. Conclusiones: El estudio estuvo limitado por la escasa muestra de pacientes, pero se corresponde con otras investigaciones que sostienen el concepto de que la presentación fenotípica de las neoplasias mieloproliferativasestá influenciada por la carga mutacional del JAK2V617F(AU)


Introduction: The frequency of the JAK2V617F mutation is estimated to be between 50 percent and 60 percent in patients with essential thrombocythemia and primary myelofibrosis. 30 percent of patients with polycythemia vera and primary myelofibrosis and 2-4 percent of patients with essential thrombocythemia show loss of heterozygosity. Objectives: To evaluate the influence of the allelic load of the JAK2V617F mutation in the diagnosis of these diseases in Cuban patients and its relationship with clinical-hematological variables. Methodology: A retrospective, descriptive and longitudinal study was carried out at the Institute of Hematology and Immunology between 2010 and 2020. All patients with suspected essential thrombocythemia and primary myelofibrosis with valid DNA samples were included. The allelic load of the mutation was quantified by real-time PCR. Results: The mutation was detected in 66.7 percent of those diagnosed with essential thrombocythemia and primary myelofibrosis. 62.5 percent of the patients with primary myelofibrosis were homozygous for the mutation, while in essential thrombocythemia only 20.8 percent. The difference in mean allelic loads between both diseases was statistically significant. No significant differences were found in the comparison of clinical and hematological variables in these diseases or association with allelic load, with the exception of platelets in primary myelofibrosis. Conclusions: The study was limited by the small sample of patients, but it corresponds to other investigations that support the concept that the phenotypic presentation of myeloproliferative neoplasms is influenced by the mutational load of JAK2V617F(AU)


Assuntos
Humanos
5.
Med. clín (Ed. impr.) ; 158(11): 503-508, junio 2022. tab
Artigo em Inglês | IBECS | ID: ibc-204667

RESUMO

Purpose:To assess whether subjects with Philadelphia negative myeloproliferative neoplasms (Ph-MPNs) show differences in the presence of vascular, cardiac or renal target organ damage (TOD) and other vascular function parameters as compared to individuals without this condition.Methods:An observational study was conducted. Fifty-seven subjects diagnosed with Ph-MPNs used as cases and 114 subjects without Ph-MPNs as controls. We matched the subjects with and without Ph-MPNs using the propensity scores in a 1:2 ratio using the variables gender, type 2 diabetes mellitus, high blood pressure, hyperlipidaemia and smoking. Vascular, cardiac and renal TOD were established according to the criteria of the European Society of Hypertension and Cardiology guidelines. Arterial stiffness was also assessed using the cardio-ankle vascular index (CAVI).Results:Mean age was 63.50±11.70 and 62.90±8.32 years in subjects with and without Ph-MPNs, 32 females (56%) in the first group and 62 (54%) in the second. Subjects with Ph-MPNs have a higher percentage of carotid injury than subjects without Ph-MPNs (35.1% vs. 21.1%) and higher albumin/creatinine ratio. In the logistic regression analysis, subjects with Ph-MPNs had an OR=2.382 (IC95% 1.066–5.323) for carotid injury versus those without haematological disease.Conclusions:Subjects with Ph-MPNs have twice the risk of by carotid injury than those without haematological disease. (AU)


Objetivo:Evaluar si los sujetos con neoplasias mieloproliferativas Filadelfia negativos (NMPs-FN) muestran diferencias en cuanto a presencia de lesión de órgano diana (LOD) vascular, cardiaca o renal y en otros parámetros de función vascular con respecto a los individuos sin esta patología.Métodos:Se realizó un estudio observacional. Se incluyeron 57 sujetos con diagnóstico de NMPs-FN utilizados como casos y 114 sujetos sin NMPs-FN como controles. Emparejamos a los sujetos con y sin NMPs-FN con la técnica de Propensity Score en la proporción 1:2, utilizando las variables sexo, diabetes mellitus tipo2, hipertensión arterial, hiperlipemia y consumo de tabaco. La LOD vascular, cardiaca y renal se estableció siguiendo los criterios de las guías de las sociedades europeas de hipertensión y cardiología. La rigidez arterial también se evaluó con el índice vascular corazón-tobillo (CAVI).Resultados:La edad media fue de 63,50±11,70 y 62,90±8,32 años en los sujetos con y sin NMPs, 32 mujeres (56%) en el primer grupo y 62 (54%) en el segundo. Los sujetos con NMPs-FN tienen un mayor porcentaje de lesión carotídea que los sujetos sin NMPs-FN (35,1% frente al 21,1%) y un mayor ratio albúmina/creatinina. En el análisis de regresión logística, los sujetos con NMPs-FN tenían un OR=2,382 (IC95%: 1,066 a 5,323) para la lesión carotídea frente a los que no presentaban enfermedad hematológica.Conclusiones:Los sujetos con NMPs-FN presentan el doble de riesgo de lesión de órgano diana vascular que los sujetos que no presentaban enfermedad hematológica. (AU)


Assuntos
Humanos , Diabetes Mellitus Tipo 2 , Transtornos Mieloproliferativos/complicações , Transtornos Mieloproliferativos/diagnóstico , Pontuação de Propensão , Rigidez Vascular
6.
Rev. clín. esp. (Ed. impr.) ; 222(3): 169-173, mar. 2022. tab, graf
Artigo em Espanhol | IBECS | ID: ibc-204637

RESUMO

Objetivos: Describir la proporción de pacientes con policitemia vera (PV) o trombocitemia esencial (TE) y trombosis previa al diagnóstico que presentaban eritrocitosis o trombocitosis antes de la trombosis. Pacientes y métodos: Revisión retrospectiva de 63 pacientes con PV y 130 con TE. Resultados: En PV, encontramos eritrocitosis previa en 7 (11,1%) de los 17 casos (27%) con trombosis previa al diagnóstico. En TE, encontramos trombocitosis previa en 10 (7,7%) de los 25 casos (19,2%) con trombosis previa al diagnóstico. La mediana de tiempo entre el hallazgo analítico y la trombosis fue de 8,2 meses y 11,8 meses para PV y TE, respectivamente. En ambas entidades, los pacientes con trombosis previa al diagnóstico tenían una supervivencia significativamente menor. Conclusión: Una proporción significativa de pacientes con trombosis previa al diagnóstico de PV y TE presenta eritrocitosis o trombocitosis previa al episodio de trombosis, lo que permitiría anticipar el diagnóstico y el tratamiento (AU)


Objectives: This work aims to describe the proportion of patients with polycythemia vera (PV) or essential thrombocythemia (ET) and thrombosis prior to the diagnosis who had erythrocytosis or thrombocytosis prior to thrombosis. Patients and methods: This is a retrospective review of 63 patients with PV and 130 with ET. Results: In regard to PV, we found prior erythrocytosis in 7 (11.1%) of the 17 cases (27%) with thrombosis prior to diagnosis. In ET, we found prior thrombocytosis in 10 (7.7%) of the 25 cases (19.2%) with thrombosis prior to diagnosis. The median time between the laboratory finding and thrombosis was 8.2 months and 11.8 months for PV and TE, respectively. In both entities, patients with thrombosis prior to diagnosis had significantly lower survival. Conclusion: A significant proportion of patients with thrombosis prior to the diagnosis of PV and ET present erythrocytosis or thrombocytosis prior to the episode of thrombosis. This could allow for anticipating diagnosis and treatment (AU)


Assuntos
Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Diagnóstico Precoce , Policitemia Vera/diagnóstico , Trombocitemia Essencial/diagnóstico , Trombocitose , Trombose , Policitemia , Trombocitemia Essencial/terapia , Policitemia Vera/terapia , Estudos Retrospectivos
7.
Med Clin (Barc) ; 158(11): 503-508, 2022 06 10.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-34399987

RESUMO

PURPOSE: To assess whether subjects with Philadelphia negative myeloproliferative neoplasms (Ph-MPNs) show differences in the presence of vascular, cardiac or renal target organ damage (TOD) and other vascular function parameters as compared to individuals without this condition. METHODS: An observational study was conducted. Fifty-seven subjects diagnosed with Ph-MPNs used as cases and 114 subjects without Ph-MPNs as controls. We matched the subjects with and without Ph-MPNs using the propensity scores in a 1:2 ratio using the variables gender, type 2 diabetes mellitus, high blood pressure, hyperlipidaemia and smoking. Vascular, cardiac and renal TOD were established according to the criteria of the European Society of Hypertension and Cardiology guidelines. Arterial stiffness was also assessed using the cardio-ankle vascular index (CAVI). RESULTS: Mean age was 63.50±11.70 and 62.90±8.32 years in subjects with and without Ph-MPNs, 32 females (56%) in the first group and 62 (54%) in the second. Subjects with Ph-MPNs have a higher percentage of carotid injury than subjects without Ph-MPNs (35.1% vs. 21.1%) and higher albumin/creatinine ratio. In the logistic regression analysis, subjects with Ph-MPNs had an OR=2.382 (IC95% 1.066-5.323) for carotid injury versus those without haematological disease. CONCLUSIONS: Subjects with Ph-MPNs have twice the risk of by carotid injury than those without haematological disease.


Assuntos
Diabetes Mellitus Tipo 2 , Transtornos Mieloproliferativos , Rigidez Vascular , Idoso , Feminino , Humanos , Pessoa de Meia-Idade , Transtornos Mieloproliferativos/complicações , Transtornos Mieloproliferativos/diagnóstico , Pontuação de Propensão
8.
Rev Clin Esp (Barc) ; 222(3): 169-173, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34657827

RESUMO

OBJECTIVES: This work aims to describe the proportion of patients with polycythemia vera (PV) or essential thrombocythemia (ET) and thrombosis prior to the diagnosis who had erythrocytosis or thrombocytosis prior to the thrombosis. PATIENTS AND METHODS: This is a retrospective review of 63 patients with PV and 130 with ET. RESULTS: In regard to PV, we found prior erythrocytosis in 7 (11.1%) of the 17 cases (27%) with thrombosis prior to diagnosis. In ET, we found prior thrombocytosis in 10 (7.7%) of the 25 cases (19.2%) with thrombosis prior to diagnosis. The median time between the laboratory finding and thrombosis was 8.2 months and 11.8 months for PV and TE, respectively. In both entities, patients with thrombosis prior to diagnosis had significantly lower survival. CONCLUSION: A significant proportion of patients with thrombosis prior to the diagnosis of PV and ET present with erythrocytosis or thrombocytosis prior to the episode of thrombosis. This could allow for anticipating diagnosis and treatment.


Assuntos
Policitemia Vera , Trombocitemia Essencial , Trombocitose , Trombose , Diagnóstico Precoce , Humanos , Policitemia Vera/diagnóstico , Policitemia Vera/terapia , Trombocitemia Essencial/diagnóstico , Trombocitemia Essencial/terapia , Trombocitose/diagnóstico , Trombocitose/etiologia , Trombocitose/terapia , Trombose/diagnóstico , Trombose/etiologia
9.
Gac Med Mex ; 158(Supl 1): 17-25, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-37734042

RESUMO

Essential thrombocythemia (ET) is a chronic Philadelphia-negative myeloproliferative neoplasm that has its main involvement in the megakaryopoietic lineage, generating sustained thrombocytosis in peripheral blood and an increase in the number of mature megakaryocytes in the bone marrow. In addition to marked thrombocytosis, it is characterized by increased thrombotic or hemorrhagic risk and the presence of constitutional symptoms. Patients with ET have a low but known risk of disease progression to myelofibrosis and/or acute leukemia. The diagnosis is made based on the 2016 WHO criteria. At present, available treatments for patients with ET are mainly aimed at minimizing the risk of thrombosis and/or bleeding.


La trombocitemia esencial (TE) es una neoplasia mieloproliferativa crónica Filadelfia negativa que tiene su principal involucro en la línea megacariopoyética, generando trombocitosis sostenida en la sangre periférica y un incremento en el número de megacariocitos maduros en médula ósea. Además de una marcada trombocitosis, se caracteriza por un mayor riesgo trombótico o hemorrágico y la presencia de síntomas constitucionales. Los pacientes con TE tienen un riesgo bajo, pero conocido, de evolución de la enfermedad a mielofibrosis y/o leucemia aguda. El diagnóstico se realiza con base en los criterios de la Organización Mundial de la Salud del 2016. Los tratamientos actualmente disponibles para los pacientes con TE están dirigidos principalmente a minimizar el riesgo de trombosis y/o hemorragia.

10.
Rev. cuba. anestesiol. reanim ; 20(3): e729, 2021.
Artigo em Espanhol | LILACS, CUMED | ID: biblio-1351989

RESUMO

La trombocitemia esencial forma parte del grupo de neoplasias mieloproliferativas. Se caracteriza por síntomas microvasculares y vasomotores, recuento plaquetario superior a 450 x 109/l, proliferación megacariocítica con morfología grande y madura, ausencia de proliferación eritroide y granulocítica, demostración de JAK2V617F u otro marcador clonal y ausencia de evidencia de trombocitosis reactiva. Se reporta el manejo anestésico en una paciente donde las principales consideraciones están relacionadas con la prevención de eventos hemorrágicos y trombóticos. La suspensión de la aspirina, el mantenimiento del tratamiento con hidroxiurea, la preparación con ácido tranexámico, el uso pre y posoperatorio de fraxiparina, hidratación adecuada, uso de medias elásticas en miembros inferiores, deambulación precoz, buena hemostasia quirúrgica y disponibilidad de concentrados de plaquetas son los elementos fundamentales en la conducción anestésica de esta paciente(AU)


Essential thrombocythemia is part of the group of myeloproliferative neoplasms. It is characterized by microvascular and vasomotor symptoms, platelet count over 450x109/L, megakaryocytic proliferation with large and mature morphology, absence of erythroid and granulocytic proliferation, demonstration of JAK2V617F or other clonal marker, and absence of evidence of reactive thrombocytosis. Anesthetic management is reported in a patient, whose case's main considerations are related to the prevention of hemorrhagic and thrombotic events. Aspirin suspension, maintenance of hydroxyurea treatment, preparation with tranexamic acid, pre- and post-operative use of fraxiparin, adequate hydration, use of elastic stockings in lower limbs, early ambulation, good surgical hemostasis, as well as availability of platelet concentrates are the fundamental elements in the anesthetic management of this patient(AU)


Assuntos
Humanos , Feminino , Pessoa de Meia-Idade , Contagem de Plaquetas , Trombocitemia Essencial/complicações , Hemostasia Cirúrgica , Ácido Tranexâmico/uso terapêutico , Meias de Compressão , Anestésicos/uso terapêutico
11.
Artigo em Espanhol | LILACS-Express | LILACS | ID: biblio-1390264

RESUMO

RESUMEN La transformación cavernomatosa de vena porta es una condición caracterizada por la formación de una red de venas colaterales dilatadas a lo largo de una vena porta previamente trombosada. Es considerada una entidad de baja frecuencia y se presenta más comúnmente en población pediátrica. Presentamos el caso de una mujer adulta con diagnóstico de transformación cavernomatosa de vena porta, originado como consecuencia de una trombocitemia esencial oculta. Como medida terapéutica a la hipertensión portal se realizó una ligadura endoscópica de várices gastroesofágicas en múltiples oportunidades sin resultados positivos. No se practicó derivación portosistémica por la presencia de abundantes colaterales. Finalmente, se realizó una esplenectomía, posterior a lo cual se logró evidenciar una trombocitemia esencial. La paciente evolucionó con múltiples complicaciones médico-quirúrgicas, que la llevaron a una falla multisistémica y posterior fallecimiento. No existen datos de prevalencia regional ni se han reportado casos de transformación cavernomatosa de vena porta asociado a trombocitemia esencial por lo que consideramos de gran importancia dar a conocer este caso, de modo a poder ayudar a establecer con mayor precisión y rapidez el diagnóstico y tratamiento de esta rara entidad.


ABSTRACT Cavernous transformation of the portal vein is a condition characterized by the formation of a network of dilated collateral veins along a previously thrombosed portal vein. It is considered a low-frequency entity and occurs more commonly in the pediatric population. We present the case of an adult woman with a diagnosis of cavernous transformation of the portal vein, originated as a consequence of occult essential thrombocythemia. As a therapeutic measure for portal hypertension, endoscopic ligation of gastroesophageal varices was performed on multiple occasions without positive results. Portosystemic bypass was not performed due to the presence of abundant collaterals. Finally, a splenectomy was performed, after which essential thrombocythemia was evidenced. The patient evolved with multiple medical-surgical complications, which led to multisystem failure and subsequent death. There are no regional prevalence data, nor have there been reports of cavernous transformation of the portal vein associated with essential thrombocythemia, for which reason we consider of great importance to make this case known, in order to help establish the diagnosis and treatment of this rare entity with greater precision and speed.

12.
Rev. colomb. anestesiol ; 48(4): e302, Oct.-Dec. 2020. graf
Artigo em Inglês | LILACS, COLNAL | ID: biblio-1149789

RESUMO

Patients with Essential Thrombocythemia pose a variety of anesthetic challenges including a heightened risk of perioperative thrombosis. This condition is also associated with perioperative hemorrhage, risk for developing heparin induced thrombocytopenia type 2 during cardiac surgery and digital gangrene from radial artery catheterization.


Los pacientes con trombocitemia esencial plantean una variedad de desafíos anestésicos, incluido un mayor riesgo de trombosis perioperatoria. Esta condición también se asocia con hemorragia perioperatoria, riesgo de desarrollar trombocitopenia tipo 2 inducida por heparina durante la cirugía cardíaca y gangrena digital por cateterismo de la arteria radial.


Assuntos
Humanos , Trombocitopenia , Trombose , Cateterismo , Trombocitemia Essencial , Cirurgia Torácica , Artéria Radial , Hemorragia , Anestésicos
13.
Clin Investig Arterioscler ; 32(3): 126-128, 2020.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-31980199

RESUMO

We present the case is presented of an acute coronary syndrome in a 30-year-old patient with essential thrombocythaemia. Acute coronary syndromes occur in 9% of cases in these patients, and their management constitutes a challenge for the cardiologist, specifically in terms of choosing the most appropriate antiplatelet therapy and its duration, taking into account that these patients have a high thrombotic risk, as well as a considerable haemorrhagic risk.


Assuntos
Síndrome Coronariana Aguda/diagnóstico , Inibidores da Agregação Plaquetária/administração & dosagem , Trombocitemia Essencial/diagnóstico , Síndrome Coronariana Aguda/tratamento farmacológico , Síndrome Coronariana Aguda/etiologia , Adulto , Humanos , Masculino , Inibidores da Agregação Plaquetária/efeitos adversos , Trombocitemia Essencial/complicações , Trombocitemia Essencial/tratamento farmacológico , Trombose/etiologia , Trombose/prevenção & controle
14.
Acta méd. colomb ; 44(2): 82-90, abr.-jun. 2019. tab
Artigo em Espanhol | LILACS | ID: biblio-1038138

RESUMO

Resumen Introducción: la carga sintomática de pacientes con neoplasias mieloproliferativas crónicas Filadélfia negativas (NMC-PhN) afecta la calidad de vida (CV). Existen escalas para evaluar la magnitud de los síntomas, una de ellas, MPN-SAF-10. En nuestra región existe escasa información sobre CV de pacientes con NMC-PhN. Objetivos: estimar el puntaje de calidad de vida con la escala MPN-SAF-10 en pacientes con NMC-PhN atendidos en el Hospital de San José (Bogotá, Colombia) y explorar asociaciones entre el tiempo de tratamiento, carga de complicaciones y el efecto en la CV. Material y métodos: estudio de corte transversal analítico para evaluar CV basada en carga sintomática de pacientes con NMC-PhN del Hospital de San José (Bogotá, Colombia). Se realizó análisis descriptivo y estratificado de calidad de vida, tratamiento citorreductor y de diferentes complicaciones, así como pruebas de asociación de los puntajes de riesgo de cada enfermedad con sus respectivos puntajes de CV. Resultados: en 64 pacientes la escala MPN-SAF-10 documentó medianas de puntajes globales de CV de 3 (RIC 1-6), MPN-SAF-10 de 20 (RIC 8-32). Un 49% de los pacientes tuvo algún grado de alteración (30% moderada y 19% severa), sin diferencias entre las tres enfermedades. Los puntajes de CV no variaron entre las NMC-PhN. El tratamiento y duración del mismo no se correlacionaron con la escala de MPN-SAF-10 (hidroxiúrea r: - 0.27; ruxolitinib r: 0.12). Conclusiones: en pacientes con NMC-PhN, la evaluación de CV con la escala MPN-SAF-10 evidencia algún grado de afectación a pesar del tratamiento; ésta es útil para objetivar dicha afectación y debe implementarse en la práctica clínica. (Acta Med Colomb 2019; 44: 82-90).


Abstract Introduction: the symptomatic burden of patients with Philadelphia negative chronic myelopro liferative neoplasms (NMC-PhN) affects the quality of life (QL). There are scales to evaluate the magnitude of the symptoms; one of them, MPN-SAF-10. In our region there is scarce information on QL of patients with NMC-PhN. Objectives: To estimate the quality of life score with the MPN-SAF-10 scale in patients with NMC-PhN treated at Hospital de San José (Bogotá, Colombia) and to explore associations between treatment time, complication load and the effect on the QL. Material and methods: Analytical cross-sectional study to evaluate QL based on symptomatic load of patients with NMC-PhN from Hospital de San José (Bogotá, Colombia). A descriptive and stratified analysis of quality of life, cytoreductive treatment and different complications was carried out, as well as association tests of the risk scores of each disease with their respective QL scores. Results: in 64 patients the MPN-SAF-10 scale documented medians of global QL scores of 3 (RIC 1-6), MPN-SAF-10 of 20 (RIC 8-32). 49% of the patients had some degree of alteration (30% moderate and 19% severe), without differences between the three diseases. The QL scores did not vary between the NMC-PhN. The treatment and its duration did not correlate with the MPN-SAF-10 scale (Hydroxyurea r: - 0.27, Ruxolitinib r: 0.12). Conclusions: in patients with NMC-PhN, the evaluation of QL with the MPN-SAF-10 scale shows some degree of affectation despite the treatment; this is useful to objectify this affectation and should be implemented in clinical practice. (Acta Med Colomb 2019; 44: 82-90).


Assuntos
Humanos , Masculino , Feminino , Adulto , Doenças Mieloproliferativas-Mielodisplásicas , Policitemia Vera , Qualidade de Vida , Mielofibrose Primária , Trombocitemia Essencial
15.
Rev Clin Esp (Barc) ; 219(8): 440-444, 2019 Nov.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-30971335

RESUMO

OBJECTIVES: To analyse the possible correlation between molecular changes in the JAK2, MPL and CALR genes, the morphological pattern of bone marrow and the clinical-haematologic profile of patients. PATIENTS AND METHODS: We conducted a retrospective study that included 140 patients diagnosed with Philadelphia-negative myeloproliferative neoplasia (Ph-MPN) in a single centre. RESULTS: In essential thrombocythaemia (ET), the patients with the JAK2 V617F mutation presented more leucocytes and neutrophils than patients who presented the CALR mutation, who had more platelets and a greater need for cytoreductive therapy. These findings support the fact that the mutational state in ET appears to define subtypes of patients with substantially different clinical courses and prognoses. In myelofibrosis, the mutational state appears to influence the histopathological changes found in the bone marrow biopsy, which did not occur in polycythaemia vera or ET.

16.
Acta méd. colomb ; 42(1): 35-41, ene.-mar. 2017. tab, graf
Artigo em Espanhol | LILACS, COLNAL | ID: biblio-886337

RESUMO

Resumen Introducción y objetivos: las neoplasias mieloproliferativas crónicas (NMPC) son relativamente raras, con incidencias que varían entre 0.47-1.03/100 000 habitantes. Se presenta el primer informe del trabajo del registro colombiano de NMPC, cuyo objetivo es describir las características clínicas de estos pacientes en nuestro país. Material y métodos: estudio descriptivo observacional, multicéntrico, retrospectivo y prospectivo en ocho centros del país, de abril de 2013 a diciembre de 2014. Las variables cualitativas se presentan con frecuencias absolutas y relativas; y las cuantitativas se resumen en medidas de tendencia central y dispersión. Resultados: once centros fueron aprobados, ocho ingresaron pacientes. En los primeros 179 casos reportados, 50% eran hombres, la edad promedio al diagnóstico 58.7 años (rango 19-92). Noventa y tres muestran trombocitemia esencial (TE); 55, policitemia vera (PV); y 31, mielofibrosis (MF). El 41% tenía esplenomegalia al diagnóstico; el 20% tuvo complicaciones trombóticas; y 12.85%, sangrado. Sólo en 57.5% se realizó JAK; de ellos, en 53.5% fue positivo, en especial sólo 60% de las PV. El 8% de los casos no tenía estudio de médula ósea, el 29.3% tiene algún grado de fibrosis. El hallazgo más frecuente fue hiperplasia megacariocítica en 59.78%. Más de 50% de pacientes estaban sintomáticos al diagnóstico. Sólo el 11% no recibió tratamiento farmacológico; los más frecuentes fueron hidroxiurea en 149 casos y ASA en 79. Con promedio de seguimiento de 52.6 meses; el 97.21% de los pacientes están vivos. Conclusiones: los hallazgos sugieren que algunas características de las NMPC podrían ser diferentes a lo reportado en otras series, lo que valida la importancia del esfuerzo de recoger información local.


Abstract Introduction and objectives: chronic MPNs are relatively rare, with incidences varying between 0.47-1.03 / 100 000 inhabitants. The first report of the work of the Colombian registry of chronic MPNs, whose objective is to describe the clinical characteristics of these patients in our country, is presented. Materials and methods: descriptive observational, multicenter, retrospective and prospective study in eight centers of the country, from April 2013 to December 2014. Qualitative variables are presented with absolute and relative frequencies, and the quantitative ones are summarized in measures of central tendency and dispersion. Results: eleven centers were approved; 8 admitted patients. In the first 179 cases reported, 50% were men; the average age at diagnosis was 58.7 years (range 19-92). Ninety-three present essential thrombocythemia (ET); 55, polycythemia vera (PV); and 31, myelofibrosis (MF). 41% had splenomegaly at diagnosis; 20% had thrombotic complications, and 12.85%, bleeding. JAK was performed in only 57.5%. Of them, in 53.5% was positive, especially in only 60% of the PV. 8% of the cases had no bone marrow study; 29.3% had some degree of fibrosis. The most frequent finding was megakaryocytic hyperplasia in 59.78%. More than 50% of patients were symptomatic at diagnosis. Only 11% did not receive pharmacological treatment, being the most frequent hydroxyurea in 149 cases and ASA in 79, with an average follow-up of 52.6 months. 97.21% of patients are alive. Conclusions: the findings suggest that some characteristics of chronic MPNs could be different from those reported in other series, which validates the importance of the effort to collect local information.


Assuntos
Humanos , Masculino , Feminino , Transtornos Mieloproliferativos , Policitemia Vera , Sistema de Registros , Mielofibrose Primária , Trombocitemia Essencial , Mutação
17.
Rev. ANACEM (Impresa) ; 9(1): 15-19, jun. 2015. ilus, graf
Artigo em Espanhol | LILACS | ID: biblio-998195

RESUMO

INTRODUCCIÓN: La hiperkalemia representa una emergencia médica frecuentemente manejada en servicios de urgencia. Identificar una pseudohiperkalemia en pacientes que presentan recuentos plaquetarios elevados permite evitar terapias innecesarias e iatrogenia que pueden tener consecuencias potencialmente fatales. PRESENTACIÓN DEL CASO: Mujer de 73 años, con enfermedad renal crónica (ERC) etapa-3a (etiología no precisada). En consulta neurológica por crisis isquémica transitoria (abril 2011), se demostró hiperkalemia de 6,0 mEq/L (suero), tasa de filtración glomerular(TFG) de 51 mL/min y trombocitosis de 1.113.000 plaquetas/mm3. Se trata la hiperkalemia con furosemida y dieta pobre en potasio. Inició hidroxiurea indicada por hematología. En control nefrológico (diciembre 2012) presenta hiperkalemia de 7,5 mEq/L (suero), TFG de 37 ml/min y trombocitosis de 1.052.000 plaquetas/mm3. Electrocardiograma (ECG), sin signos de cardiotoxicidad acordes al nivel de kalemia. Se sospechó pseudohiperkalemia secundaria a trombocitosis esencial (PSTE), se suspendió atenolol, furosemida y se continuó hidroxiurea. En febrero de 2013 presentó kalemia de 6,1 mEq/L (suero), trombocitosis de 713.000 plaquetas/mm3 y TFG de 31 mL/min. En mayo de 2014 la kalemia en suero fue de 5,5 mEq/L y en plasma de 5,2 mEq/L; trombocitosis de 503.000plaquetas/mm3 y TFG de 23 ml/min, confirmándose la PSTE. DISCUSIÓN: Hiperkalemia asociada a trombocitosis exige descartar PSTE. La regresión de la kalemia junto con la trombocitosis y ECG sin alteraciones en hiperkalemia, apoyan este diagnóstico. Su confirmación exige demostrar una hiperpotasemia mayor en suero que en plasma (0,36 +/-0,18 meq/L). Tratar una pseudohiperkalemia, puede generar iatrogenia (hipokalemia y/o hemoconcentración que aumenta riesgo de trombosis). Se descarta hiperkalemia secundaria a ERC con TFG>15ml/min


INTRODUCTION: Hyperkalemia is a medical emergency often managed in emergency services. Identifying a pseudohiperkalemia in patients with high platelet counts will avoid unnecessary iatrogenic therapies, which can have potentially fatal consequences. CASE REPORT: 73 year old woman, with chronic kidney disease (CKD) stage-3a (unknown etiology). In neurological consultation by transient ischemic attack (april 2011) it was evidenced a hyperkalemia of 6.0 mEq/L (serum), glomerular filtration rate (GFR) of 51 mL/min and thrombocytosis of 1,113,000 platelets/mm3. Hyperkalemia is treated with furosemide and potassium poor diet. Started on hydroxyurea indicated by hematology. Nephrology consultant (december 2012) realized hyperkalemia of 7.5 mEq/L (serum), GFR of 37mL/min and thrombocytosis of 1,052,000 platelets/mm3. EKG with no sign of cardiotoxicity was found in relation to potassium serum level. A pseudohyperkalemia secondary to essential thrombocytosis (PSET) was suspected. Atenolol and furosemide were discontinued and hidroxiurea was continued. In February 2013 potassium serum level was 6.1 mEq/L, platelet count: 713,000/ mm3 and GFR: 31 mL/min. In may 2014 serum potassium was 5.5 mEq/L and plasma potassium was 5.2 mEq/L; platelet count: 503,000//mm3 and GFR: 23 mL/min, confirming PSET. DISCUSSION: Hiperkalemia associated with thrombocytosis requires to rule out PSET. Regression of serum potassium with platelet count and the abscense of EKG changes with simultaneous hyperkalemia, support this diagnosis. Confirmation of PSTE diagnosis needs to demonstrate a potassium serum level greater than in plasma (0.36 +/- 0.18 mEq/L). Treating a pseudohiperkalemia can generate iatrogenia (hypokalemia and/or hemoconcentration, increasing the risk of thrombosis). A hyperkalemia secondary to CKD is ruled out with GFR >15mL/min


Assuntos
Humanos , Feminino , Idoso , Trombocitose/complicações , Hiperpotassemia/complicações , Hiperpotassemia/diagnóstico , Contagem de Plaquetas , Diagnóstico Diferencial , Eletrocardiografia , Hiperpotassemia/sangue
18.
Med Clin (Barc) ; 144(6): 247-53, 2015 Mar 15.
Artigo em Espanhol | MEDLINE | ID: mdl-25192581

RESUMO

BACKGROUND AND OBJECTIVE: Two prognostic models to predict overall survival and thrombosis-free survival have been proposed: International Prognostic Score for Essential Thrombocythemia (IPSET) and IPSET-Thrombosis, respectively, based on age, leukocytes count, history of previous thrombosis, the presence of cardiovascular risk factors and the JAK2 mutational status. The aim of the present study was to assess the clinical and biological characteristics at diagnosis and during evolution in essential thrombocythemia (ET) patients as well as the factors associated with survival and thrombosis and the usefulness of these new prognostic models. PATIENTS AND METHODS: We have evaluated the clinical data and the mutation status of JAK2, MPL and calreticulin of 214 ET patients diagnosed in a single center between 1985 and 2012, classified according to classical risk stratification, IPSET and IPSET-Thrombosis. RESULTS: With a median follow-up of 6.9 years, overall survival was not associated with any variable by multivariate analysis. Thrombotic history and leukocytes>10×10(9)/l were associated with thrombosis-free survival (TFS). In our series, IPSET prognostic systems of survival and thrombosis did not provide more clinically relevant information regarding the classic risk of thrombosis stratification. CONCLUSION: Thrombotic history and leukocytosis>10×10(9)/l were significantly associated with lower TFS, while the prognostic IPSET-Thrombosis system did not provide more information than classical thrombotic risk assessment.


Assuntos
Trombocitemia Essencial/diagnóstico , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Feminino , Seguimentos , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Retrospectivos , Medição de Risco , Fatores de Risco , Análise de Sobrevida , Trombocitemia Essencial/complicações , Trombocitemia Essencial/mortalidade , Trombose/epidemiologia , Trombose/etiologia , Adulto Jovem
19.
Med Clin (Barc) ; 141(6): 260-4, 2013 Sep 21.
Artigo em Espanhol | MEDLINE | ID: mdl-23490491

RESUMO

Essential thrombocythemia is a chronic myeloproliferative neoplasm characterized by sustained thrombocytosis, bone marrow megakaryocytic hyperplasia and an increased risk of thrombosis and hemorrhage. The goal of treatment is to prevent the development of vascular complications without increasing the risk of transformation. Patients aged>60 years or a history of thrombosis have a high risk of thrombosis while those with a platelet count>1,500 x 10(9)/l have a higher risk of hemorrhage. Patients with low-risk essential thrombocythemia can be managed appropriately with low-dose of acetylsalicylic acid or even observation only, while patients with a high-risk disease are candidates to receive cytoreductive treatment, hydroxyurea being the first choice therapy. Anagrelide is the most suitable option for patients with resistance or intolerance to hydroxyurea. All patients must be submitted to a rigorous control of cardiovascular risk factors.


Assuntos
Trombocitemia Essencial/tratamento farmacológico , Adulto , Fatores Etários , Idoso , Anticoagulantes/efeitos adversos , Anticoagulantes/uso terapêutico , Aspirina/efeitos adversos , Aspirina/uso terapêutico , Transformação Celular Neoplásica/genética , Progressão da Doença , Feminino , Hemorragia/induzido quimicamente , Hemorragia/etiologia , Hemorragia/prevenção & controle , Heparina de Baixo Peso Molecular/efeitos adversos , Heparina de Baixo Peso Molecular/uso terapêutico , Humanos , Hidroxiureia/uso terapêutico , Complicações Intraoperatórias/prevenção & controle , Janus Quinase 2/genética , Leucemia Mieloide Aguda/etiologia , Leucemia Mieloide Aguda/prevenção & controle , Expectativa de Vida , Masculino , Pessoa de Meia-Idade , Mutação de Sentido Incorreto , Inibidores da Agregação Plaquetária/efeitos adversos , Inibidores da Agregação Plaquetária/uso terapêutico , Mutação Puntual , Gravidez , Complicações Hematológicas na Gravidez , Mielofibrose Primária/etiologia , Quinazolinas/uso terapêutico , Fatores de Risco , Trombocitemia Essencial/complicações , Trombocitemia Essencial/genética , Trombofilia/tratamento farmacológico , Trombofilia/etiologia
20.
Medisan ; 16(7): 1149-1153, jul. 2012.
Artigo em Espanhol | LILACS | ID: lil-644715

RESUMO

Se describe el caso clínico de una fémina de 35 años de edad, quien acudió a la consulta de Hematología del Hospital Provincial Docente Clinicoquirúrgico "Saturnino Lora Torres" de Santiago de Cuba, por presentar decaimiento, insomnio, así como sospecha de anemia y trastornos de la coagulación por antecedentes de sangrado intraabdominal, además de sensación de quemazón en las falanges distales de los dedos de las manos. Los resultados de los exámenes efectuados confirmaron la presencia de neoplasia hematológica mieloproliferativa crónica (trombocitemia esencial). Luego del plan terapéutico inicial con hidroxiurea y Aspirina®, se indicó tratamiento con interferón alfa- 2b recombinante, con lo cual las cifras de plaquetas disminuyeron paulatinamente.


The case report of a 35 year-old female who visited the Hematology Department from "Saturnino Lora Torres" Provincial Clinical Surgical Teaching Hospital in Santiago de Cuba, because of weakness, insomnia, as well as anemia suspicion and clotting disorders due to a history of intraabdominal bleeding, besides burning sensation in the distal phalanges of the hand fingers is described. The results of the laboratory tests confirmed the presence of chronic hematologic myeloproliferative neoplasm (essential thrombocythemia). After the initial therapeutic plan with hydroxiurea and Aspirin®, treatment was indicated with recombinant alpha-2b interferon, with which the number of platelets decreased gradually.

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