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1.
Rev. argent. cardiol ; 90(1): 15-24, mar. 2022. tab, graf
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1407105

ABSTRACT

RESUMEN Introducción: Diferentes registros argentinos de insuficiencia cardíaca crónica (ICC) fueron generados en los últimos 25 años, en forma individual por la Sociedad Argentina de Cardiología (SAC) y la Federación Argentina de Cardiología (FAC), con diversa representatividad. Los últimos datos conocidos datan de 2013. El Registro OFFICE IC AR fue encarado en forma conjunta por la SAC y la FAC para conocer la realidad de la ICC en Argentina. Objetivos: Describir en forma amplia y comprensiva las características salientes de la ICC en Argentina, incluyendo las características de los pacientes, el uso de recursos diagnósticos y terapéuticos, la adherencia a las guías de práctica y el pronóstico a mediano y largo plazo. Material y Métodos: Estudio prospectivo de cohorte, de pacientes con ICC de al menos 6 meses de evolución, alejados de una internación por al menos 3 meses. Se recabaron datos clínicos y paraclínicos. Los pacientes fueron categorizados, de acuerdo a la fracción de eyección ventricular izquierda (FEVI), en IC con FE reducida, ICFER (≤40%); IC con FE en el rango medio, ICFErm, ahora denominada IC con FE levemente reducida, ICFElr (41%-49%), e IC con FE preservada, ICFEP (≥50%). En seguimiento de al menos 1 año se registró la incidencia de hospitalización por insuficiencia cardíaca (HIC), muerte cardiovascular (MCV) y muerte de todas las causas (MTC) Resultados: Entre noviembre de 2017 y enero de 2020, 100 cardiólogos de todo el país incluyeron 1004 pacientes con ICC; edad media 65,8 ± 12,4 años, 74,6% hombres, FEVI conocida en el 93,8%. El 68,4% tenía ICFER, el 16% ICFElr y el 15,6% ICFEP. Hubo alta prevalencia de comorbilidades, incluyendo diabetes y anemia en el 30%, e insuficiencia renal crónica en el 22%. Fue elevada la utilización de antagonistas neurohormonales (ANH): 89,5% betabloqueantes; 57,3% inhibidores o antagonistas del sistema renina angiotensina, 28,9% sacubitril valsartán y 78,6% antialdosterónicos. En 69% se utilizó triple terapia. Su empleo fue mayor en la ICFER, pero elevado incluso en la ICFEP. En una mediana de seguimiento de 1,7 años la incidencia anual de MCV/HIC fue 12,8%, la de MCV 6,6% y la de MTC 8,4%, sin diferencia entre las distintas categorías de FEVI. Conclusiones: En el primer registro conjunto de ICC SAC-FAC se verificó elevada prevalencia de ICFER, alta prevalencia de comorbilidades, uso frecuente de ANH y pronóstico acorde a los registros internacionales.


ABSTRACT Background: Several Argentine registries on chronic heart failure (CHF) have been generated over the past 25 years, either individually by the Argentine Society of Cardiology (SAC) or the Argentine Federation of Cardiology (FAC), with different representativeness. The last known data are from 2013. The OFFICE IC AR registry was jointly undertaken by the SAC and FAC to know the reality of CHF in Argentina. Objective: The aim of this registry was to extensively and comprehensively describe the outstanding characteristics of CHF in Argentina, including patient characteristics, use of diagnostic and therapeutic resources, adherence to practice guidelines and mid-and long-term prognosis. Methods: This was a prospective cohort study of patients with at least 6-month evolution CHF and not hospitalized for at least the past 3 months. Clinical and paraclinical data were collected. Patients were categorized according to left ventricular ejection fraction (LVEF), into HF with reduced EF, HFrEF (≤40 %), HF with midrange EF, now termed HF with mildly reduced EF, HFmrEF (41%-49%), and HF with preserved EF, HFpEF (≥50%). The incidence of hospitalization for HF (HHF), cardiovascular mortality (CVM) and all-cause mortality (ACM) was recorded for at least 1-year follow-up. Results: Between November 2017 and January 2020, 100 cardiologists from all over the country included 1004 patients with CHF. Mean age was 65.8 ± 12.4 years, 74.6% were men, and 93.8% had known LVEF. In 68.4% of cases, patients had HFrEF, 16% HFmrEF and 15.6% HFpEF. A high prevalence of comorbidities was found, including diabetes and anemia in 30% of cases, and chronic renal failure in 22%. There was high use of neurohormonal antagonists (NHA): 89.5% betablockers, 57.3% renin-angiotensin system inhibitors or antagonists, 28.9% sacubitril-valsartan and 78.6% aldosterone antagonists. Triple therapy was used in 69% of patients, with higher prescription in HFrEF, but elevated even on HFpEF. At a median follow-up of 1.7 years, the annual incidence of CVM/HHF was 12.8%, CVM 6.6% and ACM 8.4%, without statistical differences between the different LVEF categories. Conclusions: This first SAC-FAC joint CHF registry verified a high prevalence of HFrEF, a high prevalence of comorbidities, frequent use of NHA and prognosis according to international registries.

2.
Rev. argent. cardiol ; 89(4): 285-292, ago. 2021. tab, graf
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1356893

ABSTRACT

RESUMEN Introducción: La enfermedad por coronavirus (COVID-19) ha causado una de las mayores pandemias conocidas al día de la fecha. La Sociedad Argentina de Cardiología (SAC) y la Federación Argentina de Cardiología (FAC) elaboraron el primer Registro Argentino de Complicaciones Cardiovasculares en pacientes con COVID-19 (RACCOVID-19), con el propósito de relevar, a nivel nacional, su impacto en la evolución hospitalaria de estos pacientes. Objetivos: Documentar la aparición de complicaciones cardiovasculares en pacientes internados por COVID-19 y evaluar predictores de riesgo de dichas complicaciones y su impacto pronóstico. Material y Métodos: Se incluyen datos de 2750 pacientes en 50 centros de 11 provincias del país, desde el 18 de mayo hasta el 31 de octubre de 2020. Resultados: La edad promedio fue de 57±18 años y hubo predominio de sexo masculino (60,2%). La tasa de complicaciones cardiovasculares fue del 15,3%. La insuficiencia cardíaca (43,5%), las arritmias (33,5%) y el daño miocárdico (31,1%) fueron las complicaciones más frecuentes. La mortalidad fue del 19,3%. Un modelo de predicción de sobrevida en la etapa hospitalaria incluyó las siguientes variables: edad, sexo masculino, valores de hematocrito y creatinina al ingreso, existencia de antecedentes patológicos, formas de presentación de COVID-19 graves y presencia de complicaciones cardiovasculares. Conclusiones: El registro RACCOVID-19 mostró una tasa de complicaciones cardiovasculares del 15,3%. La mortalidad total del registro fue del 19,3% y las complicaciones cardiovasculares junto con otras variables de presentación, así como la gravedad del cuadro clínico de COVID-19, forman parte de un perfil de riesgo clínico asociado a mayor mortalidad.


ABSTRACT Background: Coronavirus disease (COVID-19) has caused one of the largest pandemics known to date. The Argentine Society of Cardiology (SAC) and the Argentine Federation of Cardiology (FAC) have developed the First Argentine Registry of Cardiovascular Complications in COVID-19 patients (RACCOVID-19) with the purpose of performing a nationwide review of their impact in the in-hospital evolution of these patients. Objectives: The aim of this study was to record cardiovascular complications in hospitalized patients for COVID-19, and to evaluate risk predictors of these complications and their prognostic impact. Methods: A total of 2750 patients from 50 centers in 11 provinces of the country were included from May 18 to October 31, 2020. Results: Mean age was 57±18 years, with a prevalence of male gender (60.2%). Cardiovascular complications occurred in 15.3% of cases. Heart failure (43.5%), arrhythmias (33.5%) and myocardial injury (31.1%) were the most relevant complications. Mortality was 19.3%, and a predictive model of in-hospital survival included age, male gender, admission hematocrit and creatinine, history of previous diseases, severe forms of COVID-19 presentation and cardiovascular complications. Conclusions: The RACCOVID-19 registry showed 15.3% of cardiovascular complications. Overall mortality was 19.3% and cardiovascular complications together with other presentation variables as well as the clinical severity of COVID-19, are part of a clinical risk profile associated with higher mortality.

3.
Rev. argent. cardiol ; 88(3): 216-221, mayo 2020. tab
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1250972

ABSTRACT

RESUMEN Introducción: La pandemia por Covid-19 llevó a la necesidad de tomar medidas de contención masivas, pero llevó a una disminución de consultas, estudios diagnósticos y tratamientos y en internaciones por eventos cardiovasculares, encefalovasculares y cáncer. Objetivo: Conocer el acceso a la atención médica e información sanitaria en pacientes con enfermedades cardiovasculares durante el aislamiento social obligatorio y preventivo en Argentina. Resultados: Se evaluaron 1487 encuestas. La edad media fue de 56,17 (DE ± 14,0) y el 66,8% de los encuestados eran de sexo femenino. El 38,9% residían en Gran Buenos Aires; el 27,1%, en la Ciudad Autónoma de Buenos Aires. La principal enfermedad cardiovascular reportada como más frecuente fue la hipertensión arterial (52,1%); el 42% dijo haber necesitado atención médica; y el 57,9% no pudo acceder, lo que, en el 68,2%, se debió al sistema de salud. Solo el 16,4% no requirió asistencia por miedo al COVID-19. El 72% necesitó recetas, y el 13% no las consiguió. Accedieron con normalidad a vacunación el 41,4%. El aislamiento social obligatorio fue cumplido por el 92,4%. Finalmente, el 54,6% se sintió desprotegidos por el sistema de salud. Conclusiones: Creemos que es de vital importancia garantizar el acceso de la población con enfermedades cardiovasculares crónicas, al sistema de salud con el fin de adecuar los controles y minimizar las internaciones por descompensación, dado que se trata de una población de riesgo.


ABSTRACT Background: The COVID -19 pandemic led to the implementation of massive lockdown measures producing a reduction in consultations, diagnostic tests, treatments and admissions for cardiovascular and cerebrovascular events and cancer. Objective: The aim of this study was to determine the access to medical care and health care information in patients with cardiovascular diseases during social, preventive, and mandatory confinement in Argentina. Results: A total of 1,487 surveys were analyzed. Mean age was 56.17 ± 14.0 years; 66.8% of survey respondents were women, 38.9% lived in the Greater Buenos Aires area and 27.1 % in the Autonomous City of Buenos Aires. The most commonly reported main cardiovascular disease was hypertension (52.1%); 42% required medical care and 57.9% could not access to consultation due to issues related with the health system in 68.2% of cases. Only 16.4% did not request medical care for fear of becoming infected with COVID-19. Seventy-two percent required prescriptions and 13% did not obtain them. Access to vaccination was normal in 41.4% of respondents. Social mandatory isolation was respected in 92.4% of cases. Finally, 54.6% of the surveyed population felt unprotected by the health system. Conclusions: We believe that access of the population with chronic cardiovascular diseases to the health system should be warranted in order to adapt monitoring and minimize hospitalization due to decompensation in this high-risk population.

4.
Rev. argent. cardiol ; 88(2): 142-148, mar. 2020. tab, graf
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1250952

ABSTRACT

RESUMEN Introducción: El síndrome de T3 baja se asocia con niveles elevados de interleucinas y citoquinas circulantes, lo que refuerza la hipótesis de una estrecha relación entre el sistema neuroendocrino y ciertos mecanismos inflamatorios e inmunológicos, involucrados en la insuficiencia cardíaca. Objetivo: Evaluar la evolución de pacientes ingresados por insuficiencia cardíaca descompensada según niveles de T3 al ingreso, y eventos durante la hospitalización y en el seguimiento. Material y métodos: Estudio prospectivo, observacional, analítico de 524 pacientes internados por primera vez con diagnóstico de insuficiencia cardíaca descompensada. Se evaluó la mortalidad intrahospitalaria, y al seguimiento y readmisiones de acuerdo con niveles de T3 normal o disminuida al ingreso. Se excluyeron 91 pacientes con distiroidismo conocido, hipotiroidismo o hipertiroidismo, cirugía tiroidea previa, sepsis o síndrome coronario agudo. Se realizó un análisis de subgrupo de pacientes según recibieran crónicamente amiodarona y se evaluaron variables pronosticas. Resultados: De 433 pacientes analizados, el 40,0% presentaban bajos niveles de T3 (BT3). La edad, albúmina, TFG y edad mayor de 75 años, fueron predictores independientes de BT3. Si bien se observó un aumento en ambos grupos en la adecuación de tratamientos recomendados por las guías, el grupo de BT3 mostró significativamente tasas menores de estos con respecto a aquellos con T3 normal (BT3 vs. NT3: betabloqueantes 81,5% vs. 89,4%, p = 0,02; IECA/ARAII 78,5% vs. 87,9% p <0,001; antialdosterónicos 29,2% vs. 40,5% p = 0,019). La mortalidad hospitalaria fue mayor en BT3 (5,8% vs. 1,5%) sin diferencias en readmisiones o mortalidad en el seguimiento. Del subgrupo de pacientes sin amiodarona al ingreso (353), 37,8% tenían BT3. Se halló que los pacientes de este subgrupo presentaron diferencias significativas en cuanto a mortalidad intrahospitalaria y mortalidad en seguimiento (5,3% en BT3 vs. 0,9% NT3; p = 0,03 y 40,2% vs. 26,6%; p = 0,023), respectivamente. Conclusiones: Los pacientes ingresados por insuficiencia cardíaca descompensada con T3 baja al ingreso representarían un subgrupo de pacientes con enfermedad más grave y peor pronóstico durante la internación.


ABSTRACT Background: Low T3 syndrome is associated with elevated circulating levels of cytokines and interleukins, reinforcing the hypothesis of a close relation between the neuroendocrine system and certain inflammatory and immunological mechanisms involved in heart failure. Objective: To assess the progress of patients admitted for decompensated heart failure according to T3 levels on admission, and events during hospitalization and follow-up. Materials and methods: It was a prospective, observational, analytical study of 524 patients hospitalized for the first time with a diagnosis of decompensated heart failure. In-hospital and follow-up mortality and readmissions were evaluated according to normal or low T3 levels on admission. Ninety-one patients with known dysthyroidism, hypo or hyperthyroidism, previous thyroid surgery, sepsis or acute coronary syndrome were excluded. A subgroup analysis of patients receiving chronic amiodarone therapy was conducted, and prognostic variables were evaluated. Results: Of the 433 patients analyzed, 40.0% had low T3 (LT3) levels. Age, albumin level, age >75 years, and glomerular filtration rate (GFR) were independent predictors of LT3. While adaptation of guideline-recommended treatments increased in both groups, treatment rates in the LT3 group were significantly lower than those in the normal T3 (NT3) group (LT3 vs. NT3: Betablockers 81.5% vs. 89.4%, p=0.02; ACEI/ARA II 78.5% vs. 87.9%, p=0.001; anti-aldosterone agents 29.2% vs. 40.5%; p=0.019). Hospital mortality was higher in the LT3 group (5.8 vs. 1.5%), with no difference in rehospitalizations or mortality rates at follow-up. Of the subgroup of patients without amiodarone on admission (353), 37.8% had LT3. Patients in this subgroup were found to have significant differences in follow-up and in-hospital mortality (5.3% in LT3 vs. 0.9% in NT3, p=0.03, and 40.2% vs. 26.6%, p=0.023) respectively. Conclusions: Decompensated heart failure patients with LT3 on admission would represent a subgroup with more severe disease and worse prognosis during hospitalization.

5.
Eur J Endocrinol ; 170(1): R17-30, 2014 Jan.
Article in English | MEDLINE | ID: mdl-24128429

ABSTRACT

There is a well-known controversy among scientific societies regarding the recommendation to screen for thyroid dysfunction (TD) during pregnancy. Although several studies have shown an association between maternal subclinical hypothyroidism and/or hypothyroxinemia with obstetric problems and/or neurocognitive impairment in the offspring, there is only limited evidence on the possible positive effects of thyroxine (T4) treatment in such cases. Despite the scarcity of this evidence, there is a widespread agreement among clinicians on the need for treatment of clinical hypothyroidism during pregnancy and the risks that could arise due to therapeutic abstention. As maternal TD is a quite prevalent condition, easily diagnosed and for which an effective and safe treatment is available, some scientific societies have proposed to assess thyroid function during the first trimester of pregnancy and ideally before week 10 of gestational age. Given the physiologic changes of thyroid function during pregnancy, hormone assessment should be performed using trimester-specific reference values ideally based on locally generated data as geographic variations have been detected. Screening of TD should be based on an initial determination of TSH performed early during the first trimester and only if abnormal should it be followed by either a free or total T4 measurement. Furthermore, adequate iodine supplementation during pregnancy is critical and if feasible it should be initiated before the woman attempts to conceive.


Subject(s)
Evidence-Based Medicine , Hypothyroidism/diagnosis , Practice Guidelines as Topic , Pregnancy Complications/diagnosis , Prenatal Diagnosis , Thyroid Gland/physiopathology , Adult , Female , Health Policy , Hormone Replacement Therapy/adverse effects , Humans , Hypothyroidism/blood , Hypothyroidism/drug therapy , Hypothyroidism/physiopathology , Maternal Serum Screening Tests , Pregnancy , Pregnancy Complications/blood , Pregnancy Complications/drug therapy , Pregnancy Complications/physiopathology , Pregnancy Trimester, First , Thyrotropin/blood , Thyroxine/adverse effects , Thyroxine/blood , Thyroxine/therapeutic use
8.
Med. clín (Ed. impr.) ; 139(11): e1-e11, nov. 2012.
Article in Spanish | IBECS | ID: ibc-105461

ABSTRACT

Existe una conocida controversia entre distintas sociedades científicas respecto a la recomendación o no de que se realice un cribado universal para la detección de disfunción tiroidea (DT) durante la gestación. Aunque varios estudios asocian el hipotiroidismo subclínico o la hipotiroxinemia con problemas obstétricos y/o con alteraciones neurocognitivas de la prole, no hay evidencia sobre los posibles efectos positivos de su tratamiento con tiroxina. Sin embargo, existe un acuerdo generalizado sobre la necesidad del tratamiento del hipotiroidismo clínico durante la gestación y los riesgos que podría ocasionar la abstención terapéutica. Por tratarse de una enfermedad frecuente, de fácil diagnóstico y para la que se dispone de un tratamiento efectivo y exento de riesgos, la Sociedad Española de Endocrinología y Nutrición (Grupo de Trabajo de Trastornos por Deficiencia de Yodo y Disfunción Tiroidea) y la Sociedad Española de Ginecología y Obstetricia recomiendan que se evalúe precozmente (antes de la semana 10) la función tiroidea a todas las mujeres embarazadas. Dada la compleja fisiología de la función tiroidea durante la gestación, la valoración de las hormonas debe realizarse utilizando valores de referencia para cada trimestre y para cada zona con las técnicas de laboratorio propias. Para el cribado, bastaría con la determinación de tirotropina y solo si esta está alterada, debería analizarse también la tiroxina libre o total. Debe recordarse también que una adecuada nutrición de yodo desde antes y durante el embarazo es fundamental para contribuir a la normalidad de la función tiroidea materno-fetal (AU)


Subject(s)
Humans , Female , Pregnancy , Thyroid Diseases/epidemiology , Pregnancy Complications/prevention & control , Mass Screening/methods , Thyroid Function Tests , Thyroid Hormones/analysis
9.
Endocrinol Nutr ; 59(9): 547-60, 2012 Nov.
Article in English, Spanish | MEDLINE | ID: mdl-23099114

ABSTRACT

There is a controversy among different scientific societies in relation to the recommendations on whether universal screening for the detection of thyroid dysfunction during gestation should be performed or not. Although various studies have shown an association between subclinical hypothyroidism or hypothyroxinemia with obstetric problems and/or neurocognitive impairment in the offspring, no evidence on the possible positive effects of treatment of such conditions with thyroxin has been demonstrated so far. However, there is a general agreement about the need for treatment of clinical hypothyroidism during pregnancy and the risks of not doing so. Because it is a common, easily diagnosed and effectively treated disorder without special risk, the working Group of Iodine Deficiency Disorders and Thyroid Dysfunction of the Spanish Society of Endocrinology and Nutrition and Spanish Society of Gynaecology and Obstetrics recommends an early evaluation (before week 10) of thyroid function in all pregnant women. Given the complex physiology of thyroid function during pregnancy, hormone assessment should be performed according to reference values for each gestational trimester and generated locally in each reference laboratory. Thyrotropin determination would be sufficient for screening purposes and only if it is altered, free thyroxin or total thyroxin would be required. Adequate iodine nutrition is also highly recommended before and during pregnancy to contribute to a normal thyroid function in the pregnant women and fetus.


Subject(s)
Pregnancy Complications/diagnosis , Thyroid Diseases/diagnosis , Female , Humans , Iodine/administration & dosage , Nutritional Status , Pregnancy , Pregnancy Complications/drug therapy , Thyroid Diseases/drug therapy , Thyroid Gland/physiopathology
10.
Med Clin (Barc) ; 139(11): 509.e1-509.e11, 2012 Nov 03.
Article in Spanish | MEDLINE | ID: mdl-22981085

ABSTRACT

There is a controversy among different scientific societies in relation to the recommendations on whether universal screening for the detection of thyroid dysfunction during gestation should be performed or not. Although various studies have shown an association between subclinical hypothyroidism or hypothyroxinemia with obstetric problems and/or neurocognitive impairment in the offspring, no evidence on the possible positive effects of treatment of such conditions with thyroxin has been demonstrated so far. However, there is a general agreement about the need for treatment of clinical hypothyroidism during pregnancy and the risks of not doing so. Because it is a common, easily diagnosed and effectively treated disorder without special risk, the working Group of Iodine Deficiency Disorders and Thyroid Dysfunction of the Spanish Society of Endocrinology and Nutrition and Spanish Society of Gynaecology and Obstetrics recommends an early evaluation (before week 10) of thyroid function in all pregnant women. Given the complex physiology of thyroid function during pregnancy, hormone assessment should be performed according to reference values for each gestational trimester and generated locally in each reference laboratory. Thyrotropin determination would be sufficient for screening purposes and only if it is altered, free thyroxin or total thyroxin would be required. Adequate iodine nutrition is also highly recommended before and during pregnancy to contribute to a normal thyroid function in the pregnant women and fetus.


Subject(s)
Hyperthyroidism/diagnosis , Hypothyroidism/diagnosis , Mass Screening , Pregnancy Complications/diagnosis , Prenatal Care , Biomarkers/blood , Diet , Female , Humans , Hyperthyroidism/blood , Hyperthyroidism/drug therapy , Hypothyroidism/blood , Hypothyroidism/drug therapy , Hypothyroidism/prevention & control , Iodine/therapeutic use , Pregnancy , Pregnancy Complications/blood , Pregnancy Complications/drug therapy , Pregnancy Complications/prevention & control , Prenatal Nutritional Physiological Phenomena , Thyrotropin/blood , Thyroxine/blood , Thyroxine/therapeutic use , Trace Elements/therapeutic use
11.
In. Pan Américan Health Organization. AIDS: Profile of an epidemic. Washington, D.C, Pan Américan Health Organization, 1989. p.37-44. (PAHO. Scientific Públication, 514).
Monography in English | LILACS | ID: lil-368071
12.
In. Organización Panamericana de la Salud. SIDA: perfil de una epidemia. Washington, D.C, Organización Panamericana de la Salud, 1989. p.37-44, mapas, tab. (OPS. Publicacion Cientifica, 514).
Monography in Spanish | LILACS | ID: lil-130358
14.
Bol. Oficina Sanit. Panam ; 105(5/6): 496-503, nov.-dic. 1988.
Article in Spanish | LILACS | ID: lil-367071

ABSTRACT

The first AIDS in Colombia was diagnosed in 1983. Starting the next year Colombia made AIDS a notifiable disease, instituted compulsory screening of blood donors nationwide, and undertook serologic studies on the prevalence of HIV infection. Between January 1984 and December 1987, 178 AIDS cases were reported to the Ministry of Health. Their location, with limited numbers of cases coming from most major cities, suggests that the human immunodeficiency virus (HIV) is widely distributed in Colombia. Most of those afflicted have been homosexuals, though limited heterosexual transmission to prostitutes has also accurred. Regarding HIV-1 antibodies, the highest seroprevalences (5.6 percent in females, 22.5 percent in males) were found among high risk individuals who participated in a free AIDS testing program. High prevalences (0.6 and 3.9 in females, 14.6 and 15.9 percent in males) were also found in patients (primarily females prostitutes and male homosexuals) attending sexually transmitted disease clinics in several urban áreas and in Bogoa, respectively. Lesser seroprevalences (5 percent in male homosexuals and 0 percent in female prostitutes, health service employee, and prisioners) were found by a survey in the moderate-sized eastern city of Villavicencio. Overall, it appears that the number of AIDS cases in Colombia has doubled or tripled each year since reporting began in 1984, a pattern


Subject(s)
Epidemiology , Acquired Immunodeficiency Syndrome/epidemiology , Colombia
15.
Buenos Aires; s.n; 1968. 65 p. ilus, tab, graf.
Monography in Spanish | BINACIS | ID: biblio-1205583

ABSTRACT

Se describe en el presente trabajo el efecto de la presión sobre materiales antigénicos obtenidos a partir de las formas de cultivo del Tripanosoma Cruzi (Crithidias). El antígeno fue preparado en el refrigerador celular de Ribi-Sorvall, a temperatura menor de 10°C y en una atmosfera de gases inertes. Para el estudio de los antígenos se usó la fijación de complemento, la prueba intradérmica y la capacidad protectora en el ratón. La curva más típica de fijación de complemento fue obtenido con el sobrenadante del antígeno roto a menos de 10000 PSI. La reacción intradérmica más intensa se obtuvo con el sedimento del antígeno preparado a 20000 PSI. Los mejores resultados en cuanto a la capacidad protectora se obtuvieron con el homogeneizado total roto a una presión menor de 10000 PSI. El antígeno usado como vacuna demostró no ser tóxica para el ratón, conejo y humano. Los ratones vacunados e infectados con dosis altamente mortales de tripanosomas cruzi virulentos sobreviven entre el 85 al 100 por ciento. La supervivencia dependió tanto de la cantidad de vacuna suministrada como del número de Tripanosoma Cruzi virulentos utilizadas en la infección. Los ratones inmunizados e infectados mostraron una parasitemia más leve cuanto mayor fue la dosis de antígeno que recibieron. La histopatología de los ratones vacunados y no infectados no mostró grandes alteraciones en relación a los controles normales... (TRUNCADO)


Subject(s)
Animals , Mice , Antigens, Protozoan/immunology , Antigens, Protozoan/isolation & purification , Chagas Disease/immunology , Intradermal Tests , Complement Fixation Tests , Protozoan Vaccines/immunology
16.
Buenos Aires; s.n; 1968. 65 p. ilus, tab, graf. (83627).
Monography in Spanish | BINACIS | ID: bin-83627

ABSTRACT

Se describe en el presente trabajo el efecto de la presión sobre materiales antigénicos obtenidos a partir de las formas de cultivo del Tripanosoma Cruzi (Crithidias). El antígeno fue preparado en el refrigerador celular de Ribi-Sorvall, a temperatura menor de 10°C y en una atmosfera de gases inertes. Para el estudio de los antígenos se usó la fijación de complemento, la prueba intradérmica y la capacidad protectora en el ratón. La curva más típica de fijación de complemento fue obtenido con el sobrenadante del antígeno roto a menos de 10000 PSI. La reacción intradérmica más intensa se obtuvo con el sedimento del antígeno preparado a 20000 PSI. Los mejores resultados en cuanto a la capacidad protectora se obtuvieron con el homogeneizado total roto a una presión menor de 10000 PSI. El antígeno usado como vacuna demostró no ser tóxica para el ratón, conejo y humano. Los ratones vacunados e infectados con dosis altamente mortales de tripanosomas cruzi virulentos sobreviven entre el 85 al 100 por ciento. La supervivencia dependió tanto de la cantidad de vacuna suministrada como del número de Tripanosoma Cruzi virulentos utilizadas en la infección. Los ratones inmunizados e infectados mostraron una parasitemia más leve cuanto mayor fue la dosis de antígeno que recibieron. La histopatología de los ratones vacunados y no infectados no mostró grandes alteraciones en relación a los controles normales... (TRUNCADO)(AU)


Subject(s)
Animals , Mice , Chagas Disease/immunology , Complement Fixation Tests , Intradermal Tests , Protozoan Vaccines/immunology , Antigens, Protozoan/isolation & purification , Antigens, Protozoan/immunology
19.
Article | PAHO-IRIS | ID: phr-17794

ABSTRACT

The first AIDS in Colombia was diagnosed in 1983. Starting the next year Colombia made AIDS a notifiable disease, instituted compulsory screening of blood donors nationwide, and undertook serologic studies on the prevalence of HIV infection. Between January 1984 and December 1987, 178 AIDS cases were reported to the Ministry of Health. Their location, with limited numbers of cases coming from most major cities, suggests that the human immonodeficiency virus (HIV) is widely distributed in Colombia. Most of those afflicted have been homosexuals, though limited heterosexual transmission to prostitutes has also accurred. Regarding HIV-1 antibodies, the highest seroprevalences (5.6 percent in females, 22.5 percent in males) were found among high risk individuals who participated in a free AIDS testing program. High prevalences (0.6 and 3.9 in females, 14.6 and 15.9 percent in males) were also found in patients (primarily females prostitutes and male homosexuals) attending sexually transmitted disease clinics in several urban areas and in Bogoa, respectively. Lesser seroprevalences (5 percent in male homosexuals and 0 percent in female prostitutes, health service employee, and prisioners) were found by a survey in the moderate-sized eastern city of Villavicencio. Overall, it appears that the number of AIDS cases in Colombia has doubled or tripled each year since reporting began in 1984, a pattern


Subject(s)
Acquired Immunodeficiency Syndrome , Epidemiology , Colombia
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