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1.
Reprod Sci ; 26(10): 1329-1335, 2019 10.
Article in English | MEDLINE | ID: mdl-29576000

ABSTRACT

PURPOSE: To evaluate the technical feasibility of performing a uterine autotransplantation in the nonhuman primate while preserving the uterine and ovarian vascular pedicles. METHODS: Eight (n = 8) female baboons at a primate research facility underwent a uterine autotransplant procedure with preservation of the vascular pedicles. The uterine arteries were separated from their amorphous tissue and skeletonized toward the internal iliac arteries bilaterally. A segment of the internal iliac artery was removed bilaterally along with both uterine arteries. Both ovarian veins were preserved to assist with the reperfusion of the uterine organ. Due to larger vascular pedicles in one of the primates, the uterine arteries were separated and reattached directly via end-to-end anastomosis. In another baboon, the deep uterine vein was used as a vascular pedicle rather than the ovarian vein on the left side due to adequate size and visualization. RESULTS: Immediate tissue reperfusion occurred intraoperatively in 5 of the animals, with slower perfusion in 3 of the animals. Average warm ischemia time was 43.8 minutes while the average cold ischemia time was 174 minutes (2 hours, 54 minutes). Average total surgical time was 5.9 hours. All animals were sheltered into separate cages and monitored for behavior changes and food and drink consumption. Three of the primates expired immediately postoperatively, 2 from severe dehydration and 1 from gastric aspiration. CONCLUSIONS: This pilot study describes a modified surgical approach for uterine transplants in the nonhuman primate. This surgical technique may be applicable to living and deceased donor uterine transplantation.


Subject(s)
Gynecologic Surgical Procedures/methods , Ovary/surgery , Transplantation, Autologous/methods , Uterus/transplantation , Animals , Female , Hysterectomy/methods , Ovary/blood supply , Papio , Pilot Projects , Uterus/blood supply
3.
Rev. invest. clín ; 57(2): 244-251, mar.-abr. 2005. graf, tab
Article in Spanish | LILACS | ID: lil-632477

ABSTRACT

In the last few years, there have been developments In many aspects of liver transplantation. Improvements in surgical techniques and immunosuppression markedly increased the success rates of liver transplantation. This success has lead to increasing numbers of recipients. However, the availability of cadaveric organs for transplantation has not been changed in the last 10 years, resulting in a growing discrepancy between donors and recipients. Thus, it is necessary to properly select the best candidates for a successful liver transplant. This article will review the indications and contraindications for liver transplantation in the Model for End Stage Liver Disease (MELD) score era.


En los últimos años han existido avances importantes en el trasplante hepático. La evolución en la cirugía hepática y la aparición de mejores inmunosupresores han incrementado de manera importante el éxito en el trasplante hepático. Este éxito ha aumentado el número de receptores; sin embargo, al mismo tiempo el número de órganos ha permanecido estable en los últimos 10 años, teniendo como resultado un incremento en la disparidad entre donadores y receptores. Por lo tanto es necesario conocer quiénes son los mejores candidatos para un trasplante hepático. En este artículo se revisarán las indicaciones y contraindicaciones en el trasplante hepático en la era de la clasificación de MELD (por sus siglas en inglés Model for End Stage Liver Disease).


Subject(s)
Humans , Liver Transplantation , Patient Selection , Cholangitis, Sclerosing/surgery , Hepatitis/surgery , Liver Cirrhosis, Biliary/surgery , Liver Diseases/surgery , Liver Failure/surgery , Liver Neoplasms/surgery , Liver Transplantation
4.
Rev Invest Clin ; 57(2): 244-51, 2005.
Article in Spanish | MEDLINE | ID: mdl-16524065

ABSTRACT

In the last few years, there have been developments in many aspects of liver transplantation. Improvements in surgical techniques and immunosuppression markedly increased the success rates of liver transplantation. This success has lead to increasing numbers of recipients. However, the availability of cadaveric organs for transplantation has not been changed in the last 10 years, resulting in a growing discrepancy between donors and recipients. Thus, it is necessary to properly select the best candidates for a successful liver transplant. This article will review the indications and contraindications for liver transplantation in the Model for End Stage Liver Disease (MELD) score era.


Subject(s)
Liver Transplantation , Patient Selection , Cholangitis, Sclerosing/surgery , Contraindications , Hepatitis/surgery , Humans , Liver Cirrhosis, Biliary/surgery , Liver Diseases/surgery , Liver Failure/surgery , Liver Neoplasms/surgery
5.
Mol Biotechnol ; 22(2): 191-211, 2002 Oct.
Article in English | MEDLINE | ID: mdl-12405266

ABSTRACT

The delineation of the molecular basis of cancer allows for the possibility of specific intervention at the molecular level for therapeutic purposes. To a large extent, the genetic lesions associated with malignant transformation and progression are being identified. Thus, not only in the context of inherited genetic diseases, but also for many acquired disorders, characteristic aberrancies of patterns of gene expression may be precisely defined. It is therefore clear that elucidation of the genetic basis of inherited and acquired diseases has rendered gene therapy both a novel and rational approach for these disorders. To this end, three main strategies have been developed: mutation compensation, molecular chemotherapy, and genetic immunopotentiation. Mutation compensation relies on strategies to ablate activated oncogenes at the level of DNA (triplex), messenger RNA (antisense or ribozyme), or protein (intracellular single-chain antibodies), and augment tumor suppressor gene expression. This article will review in detail practical procedures to generate a single-chain intracellular antibody (scFv). We will emphasize in this article the different steps in our protocol that we have employed to develop scFvs to a variety of target proteins.


Subject(s)
Antibodies/therapeutic use , Genetic Engineering , Genetic Therapy , Antibodies/genetics , Humans , Methods
6.
Gac. méd. Méx ; 134(2): 135-44, mar.-abr. 1998. tab
Article in Spanish | LILACS | ID: lil-232738

ABSTRACT

Las derivaciones portosistémicas de bajo diámetro (DPBD) para el tratamiento de la hipertensión portal hemorrágica, han surgido como consecuencia del desarrollo de prótesis vasculares (PTFE), que permiten la utilización de diámetros pequeños (8 a 10 milímitros). Se presenta la experiencia en un período de seis años, en la Clínica de Hipertención Portal del INNSZ, en pacientes con buena función hepática (Child-Pugh A-B) y que fueron operados electivamente (N = 31). Edad promedio 47.5 (margen 17.71). Veintisiete pacientes cirróticos, uno con fibrosis portal y tres con hipertensión idiopática. Veintidos en clase A de Child y cinco en clase B. Mortalidad operatoria: 4 por ciento. Recurrencia de hemorragia: 14 por ciento. Encefalopatía posoperatoria en 14 de 27, correspondiendo a grado 1 en 10 casos, controlada con facilidad. En tres casos se encontró encefalopatía grado III - IV (11 por ciento). El estudio angiográfico posoperatorio demostró permeabilidad de la derivación en 81 por ciento de los casos y disminución de diámetro de la porta en 33 por ciento, así como dos obstrucciones (7 por ciento). En 77 por ciento de los casos hubo adecuada calidad de vida posoperatoria. Sobrevida Kaplan-Meier). 86 por ciento al año y 56 por ciento a cinco años. Estas operaciones son una buena alternativa para los pacientes candidatos a cirugía en los cuales no es posible realizar una derivación selectiva o devascularización con transección esofágica


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Portasystemic Shunt, Surgical/mortality , Evaluation Study , Follow-Up Studies , Hypertension, Portal/surgery , Hypertension, Portal/mortality , Liver Circulation , Patient Selection , Polytetrafluoroethylene , Risk Factors , Survival Rate
7.
Cir. & cir ; 65(5): 136-40, sept.-oct. 1997.
Article in Spanish | LILACS | ID: lil-217423

ABSTRACT

Se presenta la experiencia a largo plazo (5 años) con una variante de la transección esofágica en la operación de Sugiura-Futagawa. La variante coloca un surgete continuo en toda la circunferencia de el cilindro mucosos sin abrirlo, que oblitera los plexos varicosos. Fueron operados treinta pacientes, quince del sexo femenino, con edad promedio de 43 años. Veintiséis pacientes en Child-Pugh A y cuatro en B. Dieciocho con cirrosisi hepática, siete con hipertensión idiopática y una fibrosis portal congénita. La mortalidad operatoria fue de 6 por ciento y la recurrencia de hemorragia del 10 por ciento. En un caso se presentó fístula (3 por ciento) y un caso de dehiscencia (3 por ciento) con escape controlado. Un caso de estenosis postoperatoria que requirió dilatación. La frecuencia de fístula y estenosis con la transección propuesta es inferior a la reportada en la literatura de transecciones, con frecuencia equiparable de recurrencia de hemorragia


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Liver Cirrhosis/physiopathology , Esophageal Diseases/etiology , Esophageal Diseases/surgery , Hemorrhage/surgery , Hypertension, Portal/surgery , Esophageal and Gastric Varices/surgery
8.
La Paz; 2000. 74 p. nexos.
Thesis in Spanish | LIBOCS, LIBOSP | ID: biblio-1312048

ABSTRACT

Hoy en dia la funcion de distribucion en el campo del Mercadeo, es parte muy importante para cualquier empresa; de ella depende para que el flujo de mercaderia (producto) y/o servicio llegue en las condiciones deseadas al cliente o usuario en forma eficiente y eficaz. El presente trabajo trata sobre este tema de la distribucion de la corporacion boliviana de bebidas s.a.(C.B.B.S.A.) en las ciudades de La Paz y El Alto.

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