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Clinical Article: Estudio de la toxicidad aguda del Cisplatino administrado por vía subconjuntival en conejos: Posible tratamiento para los tumores epiteliales de conjuntiva |
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María de los Ángeles Melgares Ramos, Miriam Ríos Hernández, Yanet Cepero, Licencida en Bioquímica, Alejandro Joan Figueroa, B Hugues Pan Am J Ophthalmol 2006, 5:16 (2 October 2006)
Animal studies have brought new expectations in the development of local chemotherapy for the treatment of patients with ocular cancer. To know the intermediate and mediate adverse reactions of some of the citostatics will open the breach in the treatment of malignant tumours with no need of radical surgery. At the National Institute of Oncology (INOR), a study performed on rabbits to determine the complications related to the administration of cisplatinum by subconjunctival location as an cistostatic agent for the treatment of epithelial tumours. As results of this, some oedema was observed and the moderated congestion of blood vessels in those eyes which received the trial product.
RESUMEN
Estudios en animales han abierto expectativas en el desarrollo de la quimioterapia local para el tratamiento de los pacientes con cáncer de presentación ocular. Conocer las reacciones adversas inmediatas y mediatas de algunos citostaticos, abre una brecha en el tratamiento de los tumores malignos sin tener que llegar a la realización de cirugías mutilantes. En el INOR realizamos un estudio en conejos para determinar las complicaciones inherentes a la administración de cisplatino por vía subconjuntival como agente citostático de primera línea para el tratamiento de los tumores epiteliales. Como resultado observamos algo de edema y congestión moderada de vasos sanguíneos en los ojos que le fueron administrados el producto prueba a las dosis referidas.
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Clinical Article: Osteoma de Coroides en el Institud Universitari Barraquer Barcelona - España |
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Elvis Ordóñez Oña, Alfredo Muiños Pan Am J Ophthalmol 2006, 5:14 (2 October 2006)
OBJECTIVE
To compare the results with publications of other authors on the subject.
METHOD
All the diagnosed cases of Osteoma of coroides in this center from their inauguration in 1941 to II of 2002 are reviewed that altogether add 17, but of 8, 1 because finally it was arrived at the diagnosis of Melanoma, 1 by coroiditis, 1 by Haemangioma and 5 doubtful ones are discarded there to consider that they did not have all the tests necessary to be considered like such; therefore the studied cases are 9, such that were diagnosed by oftalmoscopía and confirmed by ECHO, TAC or RMN and AGF.
RESULTS
In our study was the following thing:
- 67% go by visual alterations.
- The diagnosis between 2° and 3° is more frequent decades of life 67%.
- More frequent in women 67%.
- More frequent in an eye 78% (OI = 56%).
- 89% are of location to peripapilar.
- Only in 10% a diminution of the size is reported.
- Diminution of AV. In 40% with respect to the first visit, 56% stay equal.
- Average time of pursuit 3.30 years.
RESUMEN
El Osteoma coroideo es una tumoración benigna en la que el Tejido óseo sustituye a la coroides.
OBJETIVO
Comparar los resultados con las publicaciones de otros autores sobre el tema.
MÉTODO
Son revisados todos los casos diagnosticados de Osteoma de coroides en este centro desde su inauguración en el año 1941 hasta II de 2002 que en total suman 17, pero de ahí son descartados 8, 1 porque finalmente se llegó al diagnóstico de Melanoma, 1 por coroiditis, 1 por Haemangioma y 5 dudosos por considerar que no tenían todas las pruebas necesarias para ser considerados como tales; por lo tanto los casos estudiados son 9, los mismos que fueron diagnosticados por oftalmoscopía y confirmados por ECO, TAC o RMN y AGF.
RESULTADOS
En nuestro estudio se encontró lo siguiente:
- El 67% acude por alteraciones visuales.
- Es más frecuente el diagnóstico entre la 2° y 3° décadas de la vida 67%.
- Más frecuente en mujeres 67%.
- Más frecuente en un ojo 78% (OI= 56%).
- El 89% es de localización peripapilar.
- Sólo en el 10% se reporta una disminución del tamaño.
- Disminución de AV. En el 40% respecto a la primera visita, el 56% se mantiene igual.
- Tiempo medio de seguimiento 3,30 años.
THEY SUMMARIZE
The coroideo Osteoma is a benign tumoración in which the bony Weave replaces the coroides.
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Clinical Article: Incidence of Retinoblastoma from 1997 to 2005 in Guatemala |
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Chun Cheng Lin Yang, Lissette Aguilar de Wholers, Marlon Meza, Arturo Roberto Quevedo, Mónica Cardoza, Cesar Alejandro Recancof Pan Am J Ophthalmol 2006, 5:12 (2 October 2006)
Purpose:
To report the epidemiology of retinoblastoma (RB) in Guatemala.
Design:
Retrospective case series.
Methods:
All medical files of patients from the pediatric division of our center who were diagnosed with retinoblastoma (RB) in the past ten years (1995-2005) were reviewed. From each file, the gender, age of diagnosis, clinical manifestations, staging based on the Reese-Ellseworth classification, and the geographical origin of the patients were recorded in a data sheet.
Main Outcome Measures:
Incidence of retinoblastoma in Guatemala.
Results:
From January 1997 to March of 2005, sixty-eight (68) patients were diagnosed with RB. Thirty-five (52%) were male and thirty-three (48%) female. Mean age of diagnosis was 31 months. Forty-nine (72%) cases were unilateral and 19 (28%) had bilateral involvement. Sixty-seven percent of the cases were at advanced stages at the diagnosis.
Conclusion:
RB in Guatemala is diagnosed at advanced stages and the mean age of diagnosis is greater than the developed countries.
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Review: Tratamiento del melanoma coroideo. Nuevos conceptos |
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David E Pelayes, Jorge O Zarate Pan Am J Ophthalmol 2006, 5:6 (2 October 2006)
The indication of the enucleation for choroidal melanoma, has abruptly reduce in the recent decades, due to a replacement for less aggressive treatments.
All actual therapeutic alternatives are revised in relation to different publications which are focused in current treatment alternatives, this contains within its most important options Transpupillary Thermotherapy (TTT) for small melanomas, for medium melanomas braquitherapy (BT) or radiotherapy turns out to be very effective without differences as to the patient survival with regard to the enucleation. The local resections are an interesting indication for melanomas of anterior localization or with invasion to the ciliary body. It is important the combination of therapies to reduce tumor recurrences or to treat big sized melanomas with BT and TTT, local resection and TTT or BT. The enucleation is limited to big sized melanomas without visual possibilities or associated with complications such as neovascular glaucoma.
We must also consider, some of the new concepts in the phato biology and genetic of the melanomas which will allow us to determine in the short run, a part of the treatment, the prognosis and the regular control in these patients.
Resumen:
La indicación de la enucleación para melanomas coroideos disminuyó radicalmente en las últimas décadas, debido al reemplazo por tratamientos conservadores. Todas las alternativas terapéuticas actuales son revisadas en relación a diversas publicaciones, que tiene dentro de sus opciones más importantes, Termoterapia Trans Pupilar (TTT) para melanomas pequeños, en los melanomas medianos la braquiterapia (BT) o radioterapia resulta altamente efectiva, sin diferencias en la sobrevida del paciente en relación a la enucleación. Las resecciones locales son una interesante indicación para melanomas de ubicación anterior o con compromiso del cuerpo ciliar. Es importante la combinación de terapéuticas para disminuir las recurrencias o para tratar melanomas de gran tamaño como la BT con TTT, resecciones locales con TTT o BT. La enucleación esta limitada a melanomas de gran tamaño, sin posibilidades visuales o asociados a complicaciones como el glaucoma neovascular.
Consideraremos, algunos de los nuevos conceptos en la pato biología y genética de los melanomas que pensamos permitirá a corto plazo determinará en parte el tratamiento, el pronóstico y el seguimiento de estos pacientes.
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Article: Message from the Chairman of the Board: Comunicação do Prof. Dr. Rubens Belfort |
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Rubens Belfort Pan Am J Ophthalmol 2006, 5:3 (2 October 2006) |
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Article: Un Mensaje del Presidente: A Message from the President |
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Enrique Graue Pan Am J Ophthalmol 2006, 5:4 (1 October 2006) |
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Article: Mensaje de los Editores: A Message from the Editors: Mensagem Dos Editores |
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Mark J Mannis, Cristian Luco Pan Am J Ophthalmol 2006, 5:2 (1 October 2006) |
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