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1.
Transplant Proc ; 45(4): 1331-4, 2013 May.
Artigo em Inglês | MEDLINE | ID: mdl-23726565

RESUMO

Liver transplantation success is limited by the availability of donors. To overcome this limitation, anti-core-positive donors are increasingly being accepted, but underutilization of this resource still occurs. We performed the current study to determine the prevalence of anti-core-positive donors in our region and to describe the management of these donors and their recipients. Between January 2005 and July 2011, the national transplant database included 2,262 registered liver donors among whom 106 (4.7%) were anti-core-positive including 59 (56%) discarded and 47 (44%) implanted organs. A median of 14.5 offers (range 4-60) were rejected before harvesting and implanting the accepted grafts. The only difference between the implanted and the discarded grafts was found for the alanine aminotransferase level, which was higher among the discarded ones (50 ± 59 UI/L vs 25 ± 16, P < .05). Among 40 recipients included in the study, 5 (12.5%) did not receive any prophylaxis; 18 (45%) a nucleos(t)ide analog 11 (25.5%), heptitis B immunoglobulin and nucleos(t)ide analogs and 6 (15%) pretransplant hepatitis B vaccination. Over a mean follow-up of 871 ± 585 days, 4 de novo hepatitis B cases were identified at 545, 720, 748, and 1,080 days posttransplantation. None of these patients had received any prophylaxis. In all cases entecavir successfully controlled viral replication. We believe that better utilization of these donors and careful management of their recipients represent safe strategies to expand the liver donor pool in Argentina.


Assuntos
Antígenos de Superfície da Hepatite B/sangue , Transplante de Fígado , Doadores de Tecidos , Alanina Transaminase/sangue , Argentina , Feminino , Sobrevivência de Enxerto , Humanos , Masculino , Pessoa de Meia-Idade
2.
Med. intensiva ; 17(2): 53-9, 2000. ilus, tab
Artigo em Espanhol | LILACS | ID: lil-273724

RESUMO

Introducción: Poco sabemos respecto de qué ocurre en el área miocárdica contusa y qué alteraciones son capaces de objetivarse con los estudios diagnósticos en disponibilidad durante la urgencia. Muchas veces, las discrepancias existentes entre tantos estudios, hacen dificultoso el diagnóstico de contusión miocárdica especialmente dentro del contexto de un enfermo crítico. ¿Los cirujanos pediatras y emergentólogos sospechamos ésta patología ante todo traumatismo torácico de alto impacto cuya cinemática lesional interese el área cardíaca?. ¿Existen algoritmos pediátricos de diagnóstico y tratamiento que ayuden a soslayar retrasos terapeúticos en la atención inicial hospitalaria?. Probablemente la primera dificultad con que nos encontremos sea establecer el diagnóstico inicial de lesión cardíaca y el mismo deberá basarse principalmente en el mecanismo lesional, la clínica y el ECG que sumado a la disnea y al dolor anginoso señalan un posible traumatismo cardíaco. Material y métodos: Presentamos 3 pacientes que fueron atendidos e internados en el Departamento de Urgencia del Hospital de Niños Ricardo Gutierrez, por presentar diferentes grados de contusiones cardíacas, una con taponamiento pericárdico. Para la realización del siguiente estudio se utilizó como herramienta de "triage inicial" el Indice de Trauma Pediátrico (ITP) y se clasificó las contusiones cardíacas según la escala orgánica de lesiones cardíacas propuesta por el Comité de Clasificación de Lesiones Orgánicas de la Asociación Americana de Cirugía del Trauma. La predicción de mortalidad fue estimada utilizando el Injury Severity Scale (ISS). El criterio inicial de tratamiento se efectuó siguiendo las normas de reanimación, señaladas en el manual ATLS del American College of Surgeons y el AITP del Programa Cappa, con un algoritmo propio de manejo adaptado a la disponibilidad de recursos institucionales. Resultados: Las causas que originaron dichas lesiones fueron en 2 casos accidentes de tránsito y caída, aplastamiento en la restante. Las edades de los niños fueron: 14 años, 3 años y 1 año y 7 meses. El ITP al ingreso fue de 3 en 2 pacientes y 7 en el restante, mientras que los ISS sumaron 16, 28 y 32 puntos respectivamente. Las lesiones acompañantes observadas fueron contusiones pulmonares, traumatismo hepatoesplénico, craneoencefálico y fracturas múltiples. Solamente 1 de nuestros pacientes requirió drenaje quirúrgico por taponamiento cardíaco al cual se le realizó una ventana pericárdica...


Assuntos
Humanos , Masculino , Feminino , Adolescente , Lactente , Pré-Escolar , Algoritmos , Tamponamento Cardíaco/diagnóstico , Traumatismos Cardíacos/diagnóstico , Ferimentos não Penetrantes/mortalidade , Acidentes por Quedas , Acidentes de Trânsito , Eletrocardiografia , Tamponamento Cardíaco/terapia , Índices de Gravidade do Trauma , Traumatismos Cardíacos/complicações , Traumatismos Cardíacos/fisiopatologia , Ferimentos não Penetrantes/complicações
3.
Med. intensiva ; 17(2): 53-9, 2000. ilus, tab
Artigo em Espanhol | BINACIS | ID: bin-11521

RESUMO

Introducción: Poco sabemos respecto de qué ocurre en el área miocárdica contusa y qué alteraciones son capaces de objetivarse con los estudios diagnósticos en disponibilidad durante la urgencia. Muchas veces, las discrepancias existentes entre tantos estudios, hacen dificultoso el diagnóstico de contusión miocárdica especialmente dentro del contexto de un enfermo crítico. ¿Los cirujanos pediatras y emergentólogos sospechamos ésta patología ante todo traumatismo torácico de alto impacto cuya cinemática lesional interese el área cardíaca?. ¿Existen algoritmos pediátricos de diagnóstico y tratamiento que ayuden a soslayar retrasos terapeúticos en la atención inicial hospitalaria?. Probablemente la primera dificultad con que nos encontremos sea establecer el diagnóstico inicial de lesión cardíaca y el mismo deberá basarse principalmente en el mecanismo lesional, la clínica y el ECG que sumado a la disnea y al dolor anginoso señalan un posible traumatismo cardíaco. Material y métodos: Presentamos 3 pacientes que fueron atendidos e internados en el Departamento de Urgencia del Hospital de Niños Ricardo Gutierrez, por presentar diferentes grados de contusiones cardíacas, una con taponamiento pericárdico. Para la realización del siguiente estudio se utilizó como herramienta de "triage inicial" el Indice de Trauma Pediátrico (ITP) y se clasificó las contusiones cardíacas según la escala orgánica de lesiones cardíacas propuesta por el Comité de Clasificación de Lesiones Orgánicas de la Asociación Americana de Cirugía del Trauma. La predicción de mortalidad fue estimada utilizando el Injury Severity Scale (ISS). El criterio inicial de tratamiento se efectuó siguiendo las normas de reanimación, señaladas en el manual ATLS del American College of Surgeons y el AITP del Programa Cappa, con un algoritmo propio de manejo adaptado a la disponibilidad de recursos institucionales. Resultados: Las causas que originaron dichas lesiones fueron en 2 casos accidentes de tránsito y caída, aplastamiento en la restante. Las edades de los niños fueron: 14 años, 3 años y 1 año y 7 meses. El ITP al ingreso fue de 3 en 2 pacientes y 7 en el restante, mientras que los ISS sumaron 16, 28 y 32 puntos respectivamente. Las lesiones acompañantes observadas fueron contusiones pulmonares, traumatismo hepatoesplénico, craneoencefálico y fracturas múltiples. Solamente 1 de nuestros pacientes requirió drenaje quirúrgico por taponamiento cardíaco al cual se le realizó una ventana pericárdica...(AU)


Assuntos
Humanos , Masculino , Feminino , Adolescente , Lactente , Pré-Escolar , Traumatismos Cardíacos/diagnóstico , Algoritmos , Tamponamento Cardíaco/diagnóstico , Ferimentos não Penetrantes/mortalidade , Tamponamento Cardíaco/terapia , Eletrocardiografia , Acidentes por Quedas , Acidentes de Trânsito , Ferimentos não Penetrantes/complicações , Índices de Gravidade do Trauma , Traumatismos Cardíacos/complicações , Traumatismos Cardíacos/fisiopatologia
4.
Rev. cir. infant ; 6(1): 41-3, mar. 1996. ilus
Artigo em Espanhol | LILACS | ID: lil-172555

RESUMO

Se presenta un caso inusual de atresia de esófago tipo VII de la clasificación de Kluth y Rehbein. Se comentan los problemas diagnósticos , la forma de estudio, el tratamiento realizado y los resultados postoperatorios.


Assuntos
Atresia Esofágica/cirurgia , Atresia Esofágica/classificação , Atresia Esofágica/diagnóstico
5.
Rev. cir. infant ; 6(1): 41-3, mar. 1996. ilus
Artigo em Espanhol | BINACIS | ID: bin-22118

RESUMO

Se presenta un caso inusual de atresia de esófago tipo VII de la clasificación de Kluth y Rehbein. Se comentan los problemas diagnósticos , la forma de estudio, el tratamiento realizado y los resultados postoperatorios.


Assuntos
Atresia Esofágica/cirurgia , Atresia Esofágica/classificação , Atresia Esofágica/diagnóstico
6.
Int J Card Imaging ; 11(4): 273-5, 1995 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-8596066

RESUMO

Nonsurgical closure of femoral artery pseudoaneurysm (PSA), using ultrasound guidance and compression with the ultrasound probe or a C-clamp, has been previously described. We report a patient in whom a different compression device was used (the Femostop) which also allows direct ultrasound visualization of the PSA and femoral vessels at the site of compression. This resulted in adequate PSA with preservation of flow in both artery and vein throughout the procedure.


Assuntos
Aneurisma/terapia , Angioplastia Coronária com Balão/efeitos adversos , Artéria Femoral/diagnóstico por imagem , Técnicas Hemostáticas/instrumentação , Ultrassonografia Doppler , Aneurisma/diagnóstico por imagem , Aneurisma/etiologia , Feminino , Artéria Femoral/patologia , Veia Femoral/diagnóstico por imagem , Humanos , Pessoa de Meia-Idade , Pressão , Fluxo Sanguíneo Regional
7.
Rev. cir. infant ; 4(4): 175-8, dic. 1994. ilus
Artigo em Espanhol | LILACS | ID: lil-154740

RESUMO

Sobre un total de 24 pacientes con diagnóstico de bronquiectasias en el Servicio de Neumonología del Hospital de Clínicas "José de San Martín" entre 1987 y 1994, 9 fueron sometidos a tratamiento quirúrgico (37,5 por ciento ).Se analizan las indicaciones quirúrgicas ,las localizaciones más frecuentes de las lesiones y los resultados obtenidos.Las bronquiectasias se clasificaron de acuerdo a la evaluación clínica en formas leves,moderadas y graves según el tiempo de evolución y la extensión de las lesiones.Los pacientes que fueron sometidos a cirugía tuvieron como antecedentes más destacables neumonías a repetición y asma bronquial. La lesión se delimitó en casi todos los casos con la TAC, no siendo necesario realizar una broncografía en todos los casos, como muchos autores sugieren. Seis de los 9 operados (66 por ciento ) comenzaron con síntomas antes del año de edad y el tiempo promedio entr el comienzo de los síntomas y la cirugía fue de 4 años.En 7 pacientes se indicó lobectomía o segmentectomía por presentar lesiones localizadas , no evolutivas al resto del parénquima y sin respuesta al tratamiento médico. Los otros dos pacientes operados presentaban severas lesiones de todo el pulmón y se les realizó neumonectomía.Todos los niños mejoraron después de la operación


Assuntos
Pediatria , Pneumonectomia
8.
Rev. cir. infant ; 4(4): 175-8, dic. 1994. ilus
Artigo em Espanhol | BINACIS | ID: bin-23520

RESUMO

Sobre un total de 24 pacientes con diagnóstico de bronquiectasias en el Servicio de Neumonología del Hospital de Clínicas "José de San Martín" entre 1987 y 1994, 9 fueron sometidos a tratamiento quirúrgico (37,5 por ciento ).Se analizan las indicaciones quirúrgicas ,las localizaciones más frecuentes de las lesiones y los resultados obtenidos.Las bronquiectasias se clasificaron de acuerdo a la evaluación clínica en formas leves,moderadas y graves según el tiempo de evolución y la extensión de las lesiones.Los pacientes que fueron sometidos a cirugía tuvieron como antecedentes más destacables neumonías a repetición y asma bronquial. La lesión se delimitó en casi todos los casos con la TAC, no siendo necesario realizar una broncografía en todos los casos, como muchos autores sugieren. Seis de los 9 operados (66 por ciento ) comenzaron con síntomas antes del año de edad y el tiempo promedio entr el comienzo de los síntomas y la cirugía fue de 4 años.En 7 pacientes se indicó lobectomía o segmentectomía por presentar lesiones localizadas , no evolutivas al resto del parénquima y sin respuesta al tratamiento médico. Los otros dos pacientes operados presentaban severas lesiones de todo el pulmón y se les realizó neumonectomía.Todos los niños mejoraron después de la operación


Assuntos
Pediatria , Pneumonectomia
9.
Artigo em Espanhol | MEDLINE | ID: mdl-1344182

RESUMO

Five different kinds of sutures which can be used for closure of the rectal stump in Hartmann's operation are evaluated in the same animal. They are compared at six different phases of the cicatrization process: 7-30-45-60-90 and 150 days. In the analysis, the degree of complete cicatrization is considered as well as the thickness of the cicatriced tissue, and other factors such as persistence of suture material and the result of it. All of the sutures involved accomplished the goal of a good joint of the planes of intestinal suture. Although, two of them, the metal stapler and Polyglactin (Vicryl) in extramucosal surgery fulfill almost in an ideal way the goals concerning security, rare reaction to suture material, and consequently less thickness in the cicatriced tissue (2 x 2 and 1 x 1 mm respectively) as well as complete cicatrization in ninety days. Stapler is performed quicker and in a more aseptic way, but the scar resulting from Polyglactin is smaller. In separate extramucosal points, silk produces a more important tissue reaction with a thicker scar (3 x 3 mm) coming to an end in 150 days. "Albert Lembert" type suture is really far away from being a good mean because it creates an important tissue reaction with a thick scar (3 x 3 mm), with late consolidation (150 days) and granulomatous reaction. Resorbable stapler--Polisorb--has a considerable volume and it causes an important tissue reaction which determines a very thick (4.5 x 4.5 mm) and "unfinished" scar within 150 days; really far away for practical use.


Assuntos
Polímeros , Reto/cirurgia , Grampeamento Cirúrgico/métodos , Suturas , Absorção , Animais , Cães , Estudos de Avaliação como Assunto , Fatores de Tempo
10.
Artigo em Espanhol | BINACIS | ID: bin-50978

RESUMO

Five different kinds of sutures which can be used for closure of the rectal stump in Hartmanns operation are evaluated in the same animal. They are compared at six different phases of the cicatrization process: 7-30-45-60-90 and 150 days. In the analysis, the degree of complete cicatrization is considered as well as the thickness of the cicatriced tissue, and other factors such as persistence of suture material and the result of it. All of the sutures involved accomplished the goal of a good joint of the planes of intestinal suture. Although, two of them, the metal stapler and Polyglactin (Vicryl) in extramucosal surgery fulfill almost in an ideal way the goals concerning security, rare reaction to suture material, and consequently less thickness in the cicatriced tissue (2 x 2 and 1 x 1 mm respectively) as well as complete cicatrization in ninety days. Stapler is performed quicker and in a more aseptic way, but the scar resulting from Polyglactin is smaller. In separate extramucosal points, silk produces a more important tissue reaction with a thicker scar (3 x 3 mm) coming to an end in 150 days. [quot ]Albert Lembert[quot ] type suture is really far away from being a good mean because it creates an important tissue reaction with a thick scar (3 x 3 mm), with late consolidation (150 days) and granulomatous reaction. Resorbable stapler--Polisorb--has a considerable volume and it causes an important tissue reaction which determines a very thick (4.5 x 4.5 mm) and [quot ]unfinished[quot ] scar within 150 days; really far away for practical use.

11.
Artigo em Espanhol | BINACIS | ID: bin-37881

RESUMO

Five different kinds of sutures which can be used for closure of the rectal stump in Hartmanns operation are evaluated in the same animal. They are compared at six different phases of the cicatrization process: 7-30-45-60-90 and 150 days. In the analysis, the degree of complete cicatrization is considered as well as the thickness of the cicatriced tissue, and other factors such as persistence of suture material and the result of it. All of the sutures involved accomplished the goal of a good joint of the planes of intestinal suture. Although, two of them, the metal stapler and Polyglactin (Vicryl) in extramucosal surgery fulfill almost in an ideal way the goals concerning security, rare reaction to suture material, and consequently less thickness in the cicatriced tissue (2 x 2 and 1 x 1 mm respectively) as well as complete cicatrization in ninety days. Stapler is performed quicker and in a more aseptic way, but the scar resulting from Polyglactin is smaller. In separate extramucosal points, silk produces a more important tissue reaction with a thicker scar (3 x 3 mm) coming to an end in 150 days. [quot ]Albert Lembert[quot ] type suture is really far away from being a good mean because it creates an important tissue reaction with a thick scar (3 x 3 mm), with late consolidation (150 days) and granulomatous reaction. Resorbable stapler--Polisorb--has a considerable volume and it causes an important tissue reaction which determines a very thick (4.5 x 4.5 mm) and [quot ]unfinished[quot ] scar within 150 days; really far away for practical use.

12.
Biochem Pharmacol ; 38(4): 671-6, 1989 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-2537085

RESUMO

Some characteristics of the hydrolysis of O,O-dimethyl-2,2 dichlorovinyl phosphate (DDVP) by human serum are reported and compared with the hydrolysis of O,O-diethyl-4-nitrophenyl phosphate (paraoxon) which is a substrate for Paraoxonase, a known "A"-esterase of human serum. When incubated with human serum, DDVP was losing its inhibitory power toward acetylcholinesterase (AChE). The loss of DDVP followed first order kinetics and was proportional to serum dilution. The disappearance of DDVP after incubation with human serum was not due to protein binding. Apparent Km and Vm for the hydrolysis of DDVP were 7.1 mM and 143 nmol.min-1.ml-1. The pH sensitivity, EDTA inhibitory and Ca2+ requirements of DDVP-ase were similar to those of Paraoxonase. DDVP inhibited the Paraoxonase activity and paraoxon inhibited the DDVP-ase activity. Ca2+, Ag+ and Hg2+ were better inhibitors of the Paraoxonase than the DDVP-ase. The rate of heat inactivation was also different; at 55 degrees Paraoxonase inactivated almost completely within 10 min, while DDVP-ase lost only about 10% activity over 1 hr. Consequently, DDVP-ase and Paraoxonase can be differentiated by means of heat sensitivity. The DDVP-ase was normally distributed in a population of 60 individuals, while Paraoxonase is known to show a marked polymorphism.


Assuntos
Diclorvós/metabolismo , Esterases/sangue , Monoéster Fosfórico Hidrolases/sangue , Arildialquilfosfatase , Ligação Competitiva , Cátions/farmacologia , Ácido Edético/farmacologia , Temperatura Alta , Concentração de Íons de Hidrogênio , Técnicas In Vitro , Cinética , Especificidade por Substrato
13.
Artigo em Inglês | MEDLINE | ID: mdl-2581861

RESUMO

Antithrombin III (AT III) abnormalities can be characterized by means of crossed immunoelectrophoresis. In the past, it was thought that the abnormalities could be demonstrated only if heparin is present in the system. Now some conditions (AT III Trento, for example) are known to show an abnormal pattern only in the absence of heparin. This indicates that some of the changes are heparin-independent. Furthermore, it could be demonstrated that in some cases the abnormality is present only in serum (AT III Vicenza, for example). Therefore, the test should be carried out as a screening procedure both in plasma and serum and in the presence or absence of heparin in every case of suspected AT III abnormality.


Assuntos
Antitrombinas , Antitrombina III , Proteínas Antitrombina , Heparina , Humanos , Imunoeletroforese Bidimensional
14.
Artigo em Inglês | MEDLINE | ID: mdl-2414189

RESUMO

A hereditary deficiency of AT III is described in 14 subjects belonging to three different kindreds. There is no consanguineity in any of the families investigated. The pattern of inheritance of defect appears autosomal dominant. Seven of the affected subjects presented thrombotic episodes (deep vein thrombosis, splanchnic thrombosis, pulmonary embolization). The main laboratory features were: normal routine clotting tests, decreased AT III activity in all assay systems and concomitantly reduced AT III antigen levels. Crossed immunoelectrophoresis showed only reduced peaks with respect to normal in both plasma and serum. No correlation was found between age of patients and AT III levels.


Assuntos
Deficiência de Antitrombina III , Transtornos da Coagulação Sanguínea/genética , Adulto , Contraimunoeletroforese , Feminino , Genes Dominantes , Heterozigoto , Humanos , Masculino , Pessoa de Meia-Idade , Linhagem , Embolia Pulmonar/etiologia , Tromboflebite/etiologia
15.
Boll Soc Ital Biol Sper ; 58(12): 766-72, 1982 Jun 30.
Artigo em Inglês | MEDLINE | ID: mdl-7104100

RESUMO

Regional cerebral blood flow (CBF) was measured in 15 healthy young volunteers in psycho-sensorial rest by the 32 probes Xe133 inhalation system. The mean hemispheric values are in good agreement with those reported in literature and obtained with a limited number of probes. The regional values of the flow in the gray matter are higher in the basal-temporal and frontal regions. This regional pattern is not evident for the other considered parameters (flow in the white matter, mean flow, "weight" of the gray matter).


Assuntos
Circulação Cerebrovascular , Radioisótopos de Xenônio , Adulto , Feminino , Humanos , Masculino , Métodos , Valores de Referência , Fluxo Sanguíneo Regional
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