Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 10 de 10
Filter
1.
Rev. invest. clín ; 73(2): 94-99, Mar.-Apr. 2021. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1251869

ABSTRACT

ABSTRACT Background: The biology of some hematological diseases varies among different populations. No previous studies have evaluated the clinical behavior of mantle cell lymphoma (MCL) in México. Objective and Methods: This is a retrospective review of MCL cases seen in Mexico from January 2003 to June 2020. A total of 12 cases were identified. Results: There were nine males and three females; median age was 56 years. Eight patients had a high MCL international prognostic index score, one was intermediate, and three were low. Five patients had circulating malignant monoclonal cells. Initial treatment included rituximab, cyclophosphamide, daunorubicin, vincristine, and prednisone (R-CHOP) and CHOP. Subsequent treatment included hematopoietic stem cell transplantation in five patients; two were given maintenance therapy. Splenectomy was done in four patients. Median overall survival (OS) for all the patients has not been reached and exceeds 162 mos: OS at 162 mos was 56%. Achieving a complete remission (CR) after the first treatment was a significant prognostic factor, with a median OS exceeding 141 mos in patients achieving CR, and 16 mos among those not achieving CR (p = 0.0006). Conclusion: Some of MCL patients in Mexico have an indolent clinical course, particularly patients who achieve a CR to initial treatment and who undergo splenectomy.

2.
Rev. invest. clín ; 72(3): 159-164, May.-Jun. 2020. tab, graf
Article in English | LILACS | ID: biblio-1251850

ABSTRACT

ABSTRACT Background: The ideal treatment of coronavirus disease (COVID)-19 has yet to be defined, but convalescent plasma (CoPla) has been successfully employed. Objective: The objective of the study was to study the safety and outcomes of the administration of CoPla to individuals with severe COVID-19 in an academic medical center. Methods: Ten patients were prospectively treated with plasma from COVID-19 convalescent donors. Results: Over 8 days, the sequential organ failure assessment score dropped significantly in all patients, from 3 to 1.5 (p = 0.014); the Kirby index (PaO2/FiO2) score increased from 124 to 255, (p < 0.0001), body temperature decreased significantly from 38.1 to 36.9°C (p = 0.0058), and ferritin levels also dropped significantly from 1736.6 to 1061.8 ng/ml (p = 0.0001). Chest X-rays improved in 7/10 cases and in 6/10, computerized tomography scans also revealed improvement of the lung injury. Decreases in C-reactive protein and D-dimer levels were also observed. Three of five patients on mechanical ventilation support could be extubated, nine were transferred to conventional hospital floors, and six were sent home; two patients died. The administration of CoPla had no side effects and the 24-day overall survival was 77%. Conclusions: Although other treatments were also administered to the patients and as a result data are difficult to interpret, it seems that the addition of CoPla improved pulmonary function.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Young Adult , Pneumonia, Viral/therapy , Coronavirus Infections/therapy , Betacoronavirus/isolation & purification , Betacoronavirus/immunology , Plasma , Severity of Illness Index , Body Temperature , C-Reactive Protein/analysis , Biomarkers , Tomography, X-Ray Computed , Pilot Projects , Convalescence , Immunization, Passive , Treatment Outcome , Coronavirus Infections/drug therapy , Coronavirus Infections/diagnostic imaging , Combined Modality Therapy , Kaplan-Meier Estimate , Ferritins/blood , Pandemics , SARS-CoV-2 , COVID-19 , Lung/diagnostic imaging , Antibodies, Viral/blood
5.
Gac. méd. Méx ; 143(3): 249-251, mayo-jun. 2007. ilus
Article in Spanish | LILACS | ID: lil-568743

ABSTRACT

La micosis fungoides y el síndrome de Sezary están constituidos por un grupo de linfomas no Hodgkin indolentes, extranodales, con origen en linfocitos T; afectan la piel de manera primaria; son generalmente incurables y los pacientes tienen mal pronóstico porque la enfermedad es habitualmente refractaria a diversas modalidades terapéuticas. El trasplante de médula ósea alogénico es una opción terapéutica más. La alta mortalidad del acondicionamiento pretrasplante convencional ha hecho que se considere el trasplante alogénico con acondicionamiento de intensidad reducida como una opción viable para esta enfermedad. Se presenta el caso de una paciente con micosis fungoides a quien se hizo un trasplante hematopoyético con un esquema no mieloablativo y en quien se logró remisión completa sostenida de la enfermedad.


Sezary syndrome (SS) and mycosis fungoides (MF) are a group of non Hodgkin lymphomas that originate from T-lymphocytes and involve mostly the skin. These entities are generally non treatable and patient prognosis remains poor even with the advent of current treatment schedules. Complete remissions are seldom observed. For this reason, bone marrow transplant has been used as a treatment option. The high mortality associated with this procedure has turned reduced intensity conditioning stem cell transplant into a treatment option. This case study illustrates how stem cell transplant offers complete remission of this type of lymphomas.


Subject(s)
Humans , Female , Adult , Hematopoietic Stem Cell Transplantation , Mycosis Fungoides/surgery , Skin Neoplasms/surgery , Remission Induction
6.
Gac. méd. Méx ; 143(3): 231-235, mayo-jun. 2007. ilus, tab
Article in Spanish | LILACS | ID: lil-568746

ABSTRACT

En los últimos ocho años se han llevado a cabo, en diversas partes del país y en otros países en desarrollo, trasplantes de células hematopoyéticas alogénicas usando el “Método Mexicano” de acondicionamiento no ablativo que se desarrolló en nuestro país con base en otros métodos de acondicionamiento de intensidad reducida empleados en otras partes del mundo. Habiendo trasplantado ya más de 350 pacientes, se han hecho análisis de los resultados de acuerdo con los padecimientos que han motivado la práctica de los injertos. Los mejores resultados se han obtenido en pacientes con leucemia granulocítica crónica e hipoplasia medular, en tanto que los menos halagüeños se han obtenido en individuos con leucemia aguda linfoblástica, con resultados intermedios en pacientes trasplantados por leucemia aguda mieloblástica. La práctica de los trasplantes hematopoyéticos empleando el “Método Mexicano”, además de haber beneficiado a varios pacientes quienes no habrían podido trasplantarse, ha incidido en el incremento de la actividad académica relacionada con los trasplantes en el país.


In the past eight years, in Mexico and in other developing countries, over 350 patients have undergone allogeneic hematopoietic stem cell transplants using a non-myeloablative conditioning regimen developed in Mexico and based on international standards. The so called [quot ]Mexican method[quot ] to conduct allogeneic stem cell transplants is endowed with certain advantages which make it affordable and in turn, available to individuals living in resource-poor countries. The best results using this method have been observed among patients with stage 1 chronic myelogenous leukemia and aplastic anemia. The less favourable results have been observed among patients with acute lymphoblastic leukemia; mild to moderate results have been reported among patients with acute myelogenous leukemia. The [quot ]Mexican method[quot ] to conduct hematopoietic cells allografting has resulted not only in turning this method accessible to patients in developing countries, but also it has witnessed an increase in the academic activities of physicians from these countries involved in the field.


Subject(s)
Humans , Leukemia/surgery , Hematopoietic Stem Cell Transplantation/methods , Leukemia/mortality , Mexico , Survival Rate , Time Factors , Transplantation, Homologous
7.
Rev. invest. clín ; 57(3): 415-419, may.-jun. 2005. ilus
Article in English | LILACS | ID: lil-632461

ABSTRACT

The results of the treatment of 14 patients with promyelocytic leukemia (PML) treated with all trans-retinoic acid (ATRA), combined chemotherapy (CT) and prophylactic prednisone are reported; the median age was 30 years (range 7 - 49). A complete remission (CR) was obtained in 13 / 14 patients (93%). All patients were given ATRA fully as outpatients; the CR was achieved after the administration of ATRA in five patients, whereas in the remaining eight, CT was required to achieve it. There were no instances of the ATRA syndrome. One patient relapsed with a PML/RAR-a negative PML 575 days after achieving the CR, failed to respond again to ATRA and died. The median overall (OS) and disease free survival (DFS) has not been reached, being above 4,000 days, whereas the 12-month DFS was 93%, the three and five years DFS being 85%. The treatment employed differs from others in: Oral prednisone is used prophylactically, ATRA is given on an outpatient basis and adriamycin is used instead of other anthracyclines. The results are similar to those obtained in other centers worldwide and it is possible that the prophylactic administration of prednisone precluded the development of the full-blown ATRA syndrome in this group of patients.


Se informan los resultados del tratamiento en una sola institución de 14 pacientes con leucemia aguda promielocítica (LAPM) en quienes se empleó la combinación de ácido holotrans-retinoico (ATRA) quimioterapia combinada y prednisona profiláctica. La mediana de edad fue de 30 años (rango 7-49). Se obtuvo remisión completa (hematológica y molecular) (RC) en 13 pacientes (93%); a todos los pacientes se les administró el ATRA de manera ambulatoria. La RC se obtuvo con el ATRA en cinco pacientes; en los demás la RC se obtuvo después de habérseles administrado la quimioterapia con citarabina/adriamicina. No hubo ningún caso de síndrome de ATRA. Un paciente recayó con una LAPM PML/ RAR-a negativa, 575 días después de haber logrado la RC y falleció. Otro paciente recayó 20 meses después de haber logrado la RC y fue rescatado con el mismo esquema de tratamiento; permanece en segunda remisión molecular por más de seis años. La mediana de supervivencia (SV), tanto global como libre de recaídas de todo el grupo, no se ha alcanzado y es mayor de 4,000 días, en tanto que la SV a 12 meses fue de 93% y a tres y cinco años de 85%. El esquema de tratamiento usado difiere de otros en que se usa prednisona oral, se administra el ATRA de manera ambulatoria y se usa adriamicina y no otras antracidinas; los resultados son similares a los obtenidos con otros esquemas parecidos en otros sitios del mundo; es posible que el uso profiláctico de prednisona haya eliminado la ocurrencia del síndrome de ATRA.


Subject(s)
Adolescent , Adult , Child , Female , Humans , Male , Middle Aged , Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Leukemia, Promyelocytic, Acute/drug therapy , Tretinoin/therapeutic use , Administration, Oral , /administration & dosage , Combined Modality Therapy , Cytarabine/administration & dosage , Disease-Free Survival , Doxorubicin/administration & dosage , Follow-Up Studies , Leukocyte Count , Life Tables , Leukemia, Promyelocytic, Acute/blood , Leukemia, Promyelocytic, Acute/therapy , Methotrexate/administration & dosage , Mexico/epidemiology , Neoplasm Proteins/blood , Oncogene Proteins, Fusion/blood , Peripheral Blood Stem Cell Transplantation , Prospective Studies , Prednisone/administration & dosage , Remission Induction , Transplantation, Autologous , Tretinoin/administration & dosage , Biomarkers, Tumor/blood
9.
Gac. méd. Méx ; 140(4): 375-379, jul.-ago. 2004. ilus, tab
Article in Spanish | LILACS | ID: lil-632215

ABSTRACT

La gamapatía monoclonal de significado indeterminado (GMSI) se define como la presencia de una proteína sérica monoclonal a una concentración de 3 g por decilitro o menor; sin proteína monoclonal en la orina o solamente cantidades moderadas de cadenas ligeras monoclonales, sin lesiones líticas óseas, anemia, hipercalcemia, ni insuficiencia renal relacionada a la pro teína monoclonal y con una proporción de células plasmáticas en la médula ósea de 10% o menor. En poblaciones caucásicas, la GMSI afecta a 3% de la población mayor a 70 años, en tanto que en mestizos mexicanos esta proporción es considerablemente menor (0.7%); por otro lado, de todas las para proteinemias monoclonales en México, la GMSI representa sólo 2.4%. En un total de 9081 pacientes estudiados en el Centro de Hematología y Medicina Interna de Puebla en un período de 20 años, se identificaron 11 pacientes con GMSI. La mediana de edad es de 70 años, con márgenes de 43 a 83. Los pacientes han sido vigilados por periodos que oscilan entre 6y 3270 días (mediana 308). Dos pacientes desarrollaron mieloma múltiple 308 y 1687 días después de haberse identificado la GMSI. La mediana de supervivencia (SV) del grupo no se ha alcanzado y la SV a 32 70 días es de 91%. Después de discutir causas potenciales de error como son la falta de reporte y varios sesgos, parece que la GMSI, al igual que otros padecimientos inmunoproliferativos malignos, es probablemente menos frecuente en mestizos mexicanos que en individuos de origen caucásico. Es posible que hacer estudios rutinarios para identificar esta condición permita diagnosticar más casos.


Monoclonal gammopathy of undetermined significance (MGUS) is defined as presence of serum monoclonal protein at a concentration of 3 g per deciliter or less, no monoclonal protein or only moderate amounts of monoclonal light chains in urine, absence oflytic bone lesions, anemia, hypercalemia, and renal insufficiency related with monoclonal protein, and with a proportion of plasma cells in bone marrow of 10% or less. In Caucasian population, MGUS affects about 3% of individuals > 70 years of age, whereas in Mexican mestizos this figure is substantially lower (0.7%); on the other hand, MGUS represents in Mexico only 2.4% of all monoclonal gammopathies. In a total of 9081 individuals studied prospectively at the Centro de Hematología y Medicina Interna de Puebla throughout a 20-year period, 11 patients with MGUS were identified. Median age was 70 years (range 43-83 years). Patients have been followed in periods ranging from 6 to 3270 days (median, 308 days). Two patients evolved into overt multiple myeloma at 308 and 1687 days after diagnosis of MGUS. Overall median survival (SV) of the group has not been reached, whereas3270 days overall SV is 91%. After discussing underreporting, biasing, and other confounding factors, it would seem that MGUS, like other monoclonal gammopathies, is les sfrequent in Mexican mestizos than in Caucasians. Routine screening studies to identify the condition should result in increased numbers of patients.


Subject(s)
Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Monoclonal Gammopathy of Undetermined Significance/diagnosis , Monoclonal Gammopathy of Undetermined Significance/epidemiology , Mexico/epidemiology , Monoclonal Gammopathy of Undetermined Significance/complications , Paraproteins/analysis , Retrospective Studies
10.
Rev. invest. clín ; 53(2): 117-120, mar.-abr. 2001. ilus
Article in English | LILACS | ID: lil-314433

ABSTRACT

La heterocigosidad para la talasemia ß (talasemia menor) por sí misma no conduce a sobrecarga de hierro; sin embargo, cuando coexiste con un estado homocigoto para alguna de las multiciones (H63d o C282Y) del gene de la hemocromatosis hereditaria (gen HFE), puede presentarse spbrecarga de hierro. Se describe una familia en la que el propositus, siendo doble heterocigoto para talasemia ß y para la mutación H63D del gene HFE, desarrolló sobrecarga de hierro grave y, en consecuencia, insuficiencia hepatocelular crónica con hipertensión portal. Otros miembros de la familia, con sólo talasemia o la mutación H63D no han desarrollado sobrecarga de hierro. Se discuten brevemente algunos aspectos sobre la interacción entre la talasemia ß y la hemocromatosis hereditaria y se hacen especulaciones sobre la posibilidad de que otras mutaciones genéticas que conducen a sobrecarga de hierro familiar haya sido las responsables de la sobrecarga de hierro en esta familia.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , beta-Thalassemia , Family , Hemochromatosis , Heterozygote , Genes , Mutation
SELECTION OF CITATIONS
SEARCH DETAIL