20 results on '"Orbit Evisceration"'
Search Results
2. Estudo comparativo entre as esferas de silicone gelatinosas e rígidas em cavidade eviscerada de coelho.
- Author
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KANAMURA, MAYUMI SHIROTA, PADOVANI, CARLOS ROBERTO, PEREIRA, ELENIZE JAMAS, MAMPRIM, MARIA JAQUELINE, and SCHELLINI, SILVANA ARTIOLI
- Subjects
SCLERA surgery ,RABBITS ,OPHTHALMIC surgery ,BIOCOMPATIBILITY ,BIOMEDICAL materials - Abstract
Copyright of Arquivos Brasileiros de Oftalmologia is the property of Arquivos Brasileiros de Oftalmologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2012
- Full Text
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3. Implante de resina fotocurável para evisceração produzido por impressora tridimensional
- Author
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Patricia Akaishi, Ricardo Mörschbächer, Hamilton Moreira, and Rodrigo Beraldi Kormann
- Subjects
Male ,Time Factors ,Polymers ,medicine.medical_treatment ,Orbital implants ,Orbit evisceration ,Biocompatible Materials ,chemistry.chemical_compound ,lcsh:Ophthalmology ,Reference Values ,Materials Testing ,Postoperative Period ,Biocompatible materials ,Evisceration (ophthalmology) ,Rehabilitation ,biology ,Printing, three-dimensional ,General Medicine ,Middle Aged ,Resinas acrílicas/uso terapêutico ,Treatment Outcome ,Doenças orbitárias/reabilitação ,Printing, Three-Dimensional ,Female ,Acrylic resins/therapeutic use ,Eye Evisceration ,Orbit/surgery ,Orbital Implants ,Adult ,Biocompatibility ,Prosthesis Design ,Exenteração orbitária ,Implantes orbitários ,Impressão tridimensional ,medicine ,Humans ,Creatinine ,Órbita/cirurgia ,business.industry ,Reproducibility of Results ,Orbit Evisceration ,Orbital diseases/rehabilitation ,Ophthalmology ,chemistry ,lcsh:RE1-994 ,Materiais biocompatíveis ,biology.protein ,Creatine kinase ,Implant ,sense organs ,business ,Nuclear medicine - Abstract
Purpose: To evaluate the biocompatibility of three-dimensional (3D) printed orbital spheres for evisceration. Materials: A total of 10 consecutive patients (eight females and two males; mean age, 46.8 ± 14.2 years) underwent evisceration of blind painful eyes. 3D spherical implants produced by a rapid prototype machine were used to restore orbital volume. The implants were produced from a commercially available photocurable resin (Fullcure®). Systemic toxicity was evaluated by comparing serum biochemical measurements (creatine phosphokinase, aspartate aminotransferase, alanine aminotransferase, albumin, creatinine, urea, alkaline phosphatase, and C-reactive protein) before and at 12 months after surgery. Local toxicity was assessed by the evaluation of signs of socket inflammation at the first postoperative month. Changes in implant size were determined by computed tomography scans at 2 and 12 months after surgery. Results: The postoperative evaluations were uneventful. The biochemical evaluation showed no significant changes after surgery. None of the patients presented signs of orbital implant inflammation, infection, exposure, or extrusion. Computed tomography scan evaluations revealed no changes in implant size. Conclusion: To the best of our knowledge, this is the first phase-1 clinical study to certify the biocompatibility of the Fullcure resin for orbital implants in humans. The 3D printing technology permits fast and accurate production of implants for this purpose. RESUMO Objetivos: Avaliar a biocompatibilidade das esferas produzidas por impressora tridimensional em evisceração. Pacientes e métodos: Evisceração por olho cego doloroso foi realizada em 10 pacientes consecutivos (8 mulheres, idade média: 46.8 ± 14.2 anos). Os implantes esféricos foram produzidos pelo sistema de prototipagem rápida utilizando dados tridimensionais computadorizados. O material utilizado para produção dos implantes foi a resina fotocurável Fullcure®. A avaliação da toxicidade sistêmica do material foi realizada por meio da dosagem de marcadores bioquímicos (creatina fosfoquinase, aspartato aminotransferase, alanina aminotransferase, albumina, creatinina, ureia, fosfatase alcalina, e proteína C-reactiva) antes da cirurgia e aos 12 meses de pós-operatorio. A avaliação da toxicidade local foi realizada por meio do registro qualitativo dos sinais inflamatórios no lado operado durante o primeiro mês de pós-operatório. O tamanho dos implantes foi medido em tomografias computadorizadas (CT) aos 2 e 12 meses de pós-operatório. Resultados: A avaliação bioquímica mostrou que os marcadores estudados não sofreram alterações significativas após a cirurgia. Nenhum paciente apresentou sinais de inflamação atípica, infecção, exposição ou extrusão. A avaliação tomográfica não demonstrou mudanças nos tamanhos dos implantes. Conclusão: O presente trabalho é o primeiro estudo clínico realizado para atestar a biocompatibilidade dos implantes orbitais de resina fotocurável Fullcure. A produção dos implantes pela técnica de impressão tridimensional, utilizando essa resina, permite a disponibilização rápida e acurada do produto final
- Published
- 2018
4. Uso da biomembrana de látex em cavidade exenterada: relato de caso The use of latex biomembrane in exenteration: case report
- Author
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Fernando Fugimoto, Ana Carolina Jervásio, Alexandre Kazuo Misawa, Renato Garcia, and Suzana Matayoshi
- Subjects
Relatos de casos ,Case reports ,Latex ,lcsh:Ophthalmology ,Neoplasias palpebrais ,lcsh:RE1-994 ,Hevea ,Orbit evisceration ,Látex ,Exenteração orbitária ,Eyelid neoplasms - Abstract
A membrana de látex é um material extraído da Hevea brasiliensis, e devido às suas propriedades neoangiogênicas, de adesão celular e formação de matriz extracelular, é utilizada em recobrimentos de úlceras, meringoplastias e outras feridas, com sucesso. Neste caso descrevemos seu uso, inédito, na ferida pós-exenteração orbitária por carcinoma basocelular em paciente do sexo masculino, 72 anos, procedente da Bahia com lesão na pálpebra do olho esquerdo há dois anos com prurido, sangramento, lacrimejamento, e dor. Ao exame oftalmológico do olho esquerdo evidenciou-se lesão ulcerada de pálpebra superior e canto medial, hiperemia conjuntival, afilamento corneano, catarata, perfuração ocular. Sem alterações significativas à direita. A tomografia de órbitas revelou lesão expansiva palpebral com invasão pré-septal, osso frontal e lâmina papirácea à esquerda. Realizada exenteração total com curativo de biomembrana de látex; troca a cada 24 horas nos primeiros sete dias e a cada 48 horas nos outros sete dias. Retirou-se a biomembrana de látex por não ter sido evidenciada granulação, o que só ocorreu após um mês e quinze dias. A exenteração orbitária consiste na retirada de todo o conteúdo da órbita, incluindo olho e partes moles. É considerada total quando as pálpebras são incluídas, e subtotal quando as mesmas são preservadas. Existem várias técnicas de reconstrução da cavidade exenterada: como granulação espontânea, enxerto de pele, retalho frontal, retalho miocutâneo, entre outros. Neste caso utilizamos curativo com biomembrana de látex, material que se mostrou eficaz no recobrimento de outros tecidos cruentos como úlceras, mas sem o mesmo sucesso em nossa experiência. Mais estudos são necessários para que possamos concluir as vantagens e desvantagens do uso da biomembrana de látex na área da oftalmologia.The latex biomembrane is a material from Hevea brasiliensis and has angiogenic properties, cellular adhesion and extracellular matrix formation. It has been used for the treatment of ulcers in the inferior extremities caused by diabetes, chronic vascular insufficiency and timpanic perforations. In this study we report a case of biomembrane use to promote granulation in the orbital cavity after exenteration in a male, 72 years, who came into our service with a left eyelid lesion for two years. The ocular examination revealed a hyperemic conjunctiva, corneal thinning, cataract and ocular perforation in the left eye. The right eye had no alterations. There was an expansive and ulcerated lesion with orbital septum, frontal bone and lamina papiracea invasion confirmed by tomography. A total exenteration of the cavity was made and the biomembrane was applied to the affected site. Changes were made every 24 hours in the first seven days, and every other day in the following seven days. The biomembrane had to be taken from the patient because no granulation could be seen. Just one occurred and a half month later. Exenteration is a procedure in which all of the orbital content is removed. If the eyelids are included it is called total exenteration. There are many exenteration techniques as spontaneous granulation, skin grafts, miocutaneous flap, etc. In this case we used a material which has been successfully applied for other wounds, but with no efficiency in our experience. More studies are necessary so that we can present benefits to our patients in the ophthalmologic area with the latex biomembrane.
- Published
- 2007
5. Exenteração: estudo retrospectivo Exenteration: a retrospective study
- Author
-
Milena Atique-Tacla, Luis Paves, Max Domingues Pereira, and Paulo Gois Manso
- Subjects
lcsh:Ophthalmology ,Neoplasias oculares ,squamous cell ,lcsh:RE1-994 ,Enucleação ocular ,Carcinoma ,Neoplasm invasiveness ,Eye enucleation ,Orbit evisceration ,Carcinoma de células escamosas ,Eye neoplasms ,Exenteração orbitária ,Invasividade neoplásica - Abstract
OBJETIVO: Avaliar as características clínicas e epidemiológicas de pacientes submetidos à exenteração da órbita. MÉTODOS: Foram analisados retrospectivamente os prontuários de 21 pacientes submetidos à exenteração entre agosto de 1998 e maio de 2003. Foram avaliados dados referentes a idade, sexo, raça, local de origem da lesão, acuidade visual pré-operatória, tempo de evolução da doença, cirurgias prévias, complicações pós-operatórias, diagnóstico histopatológico e uso de tratamento adjuvante antes e/ou após a cirurgia. RESULTADOS: A idade média dos pacientes (12 homens e 9 mulheres) foi de 58,5 anos, sendo a maioria caucasianos. Todos os pacientes apresentavam neoplasias malignas primárias, sendo 12 de origem palpebral, 6 conjuntivais e 3 orbitárias. O carcinoma espinocelular foi a doença mais freqüente (52,4%). Dos 21 pacientes, 28,57% foram submetidos à cirurgia prévia relacionada à lesão que levou à exenteração. CONCLUSÃO: A maioria dos pacientes analisados apresentava tumores que geralmente se iniciam como lesões pequenas, mas que podem se disseminar para a cavidade orbitária na ausência de tratamento adequado.PURPOSE: To review all cases of orbit exenteration performed at the Orbit Sector, Ophthalmology Department - Federal University of São Paulo, from 1998 to 2003. METHODS: We reviewed conditions leading to orbital exenteration in 21 patients at the Orbit Sector of Unifesp-EPM from August 1998 to May 2003. Data regarding sex, age, race, primary lesion site, visual acuity at the moment of diagnosis, previous surgeries related to the exenteration, type of performed surgery, histopathologic diagnosis, postoperative complications and use of adjuvant treatment were collected. RESULTS: 21 patient charts were retrospectively analyzed. Ages ranged from 5 to 91 years (mean of 58.5 years). Of these, 12 were male and 9 were female, most of them Caucasian. All lesions that led to exenteration were malignant neoplasias; however, none were metastatic. Lesions originated from eyelids in twelve patients, from bulbar conjunctiva in six and from the orbit in three. Cases were also classified as squamous cell carcinoma (eleven cases), basal cell carcinoma (four cases), sebaceous gland carcinoma (two cases), rhabdomyosarcoma (two cases), mucoepidermoid carcinoma (one case) and adnexal microcistic carcinoma (one case). Visual acuity at the moment of diagnosis ranged from 20/40 to no light perception. Only six patients had been submitted to previous surgeries related to the exenteration. After surgery, three patients suffered graft necrosis, one presented ethmoidal sinus fistula to the orbit and one presented orbital socket shrinkage. Six patients needed postoperative radiotherapy and two had been previously submitted to chemotherapy. CONCLUSION: Most patients analyzed in our study presented lesions that are usually small in the beginning; however, they can disseminate to the orbit in the absence of adequate treatment.
- Published
- 2006
6. Avaliação das dimensões orbitárias de coelhos após enucleação e evisceração
- Author
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Silvana Artioli Schellini, Romualdo Rossa, Claudia Akemi Shiratori, and Universidade Estadual Paulista (Unesp)
- Subjects
Tomografia computadorizada por raios X ,genetic structures ,medicine.diagnostic_test ,business.industry ,medicine.medical_treatment ,Órbita ,Enucleation ,Orbit evisceration ,Tomography, x-ray computed ,Computed tomography ,General Medicine ,Anatomy ,Exenteração orbitária ,eye diseases ,Coelhos ,Ophthalmology ,Orbital implant ,Enucleação ocular ,Eye enucleation ,medicine ,Rabbits ,business ,Orbit ,Evisceration (ophthalmology) ,Órbita/crescimento & desenvolvimento - Abstract
Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:44:29Z No. of bitstreams: 1 S0004-27492005000200015.pdf: 762987 bytes, checksum: bb4167931198b5797d871a54c59b194f (MD5) Made available in DSpace on 2013-08-22T18:44:29Z (GMT). No. of bitstreams: 1 S0004-27492005000200015.pdf: 762987 bytes, checksum: bb4167931198b5797d871a54c59b194f (MD5) Previous issue date: 2005-04-01 Made available in DSpace on 2013-09-30T18:21:58Z (GMT). No. of bitstreams: 2 S0004-27492005000200015.pdf: 762987 bytes, checksum: bb4167931198b5797d871a54c59b194f (MD5) S0004-27492005000200015.pdf.txt: 21668 bytes, checksum: 26171167159b23e5f0d4537d9ab1b15d (MD5) Previous issue date: 2005-04-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:36:45Z No. of bitstreams: 2 S0004-27492005000200015.pdf: 762987 bytes, checksum: bb4167931198b5797d871a54c59b194f (MD5) S0004-27492005000200015.pdf.txt: 21668 bytes, checksum: 26171167159b23e5f0d4537d9ab1b15d (MD5) Made available in DSpace on 2014-05-20T13:36:45Z (GMT). No. of bitstreams: 2 S0004-27492005000200015.pdf: 762987 bytes, checksum: bb4167931198b5797d871a54c59b194f (MD5) S0004-27492005000200015.pdf.txt: 21668 bytes, checksum: 26171167159b23e5f0d4537d9ab1b15d (MD5) Previous issue date: 2005-04-01 OBJETIVO: Avaliar o volume orbitário de coelhos recém-nascidos, enucleados ou eviscerados, sem ou com reposição do volume orbitário por esferas de polietileno poroso de 10 mm, usando a tomografia computadorizada, o teste de deslocamento de água e a medida da abertura orbitária por Image-J. MÉTODOS: Estudo experimental, usando 48 coelhos albinos, com idade de 42 dias, submetidos à evisceração ou enucleação, com implante de esfera de polietileno poroso de 10 mm de diâmetro ou sem implante. O lado esquerdo não foi submetido à cirurgia e foi usado como controle. Após 1, 3 e 6 meses, foram sacrificados quatro animais de cada grupo. Os crânios foram preparados para estudo do osso seco por maceração da peça, e analisados em relação ao volume orbitário por tomografia computadorizada, teste de deslocamento de água e avaliação da abertura orbitária usando o software Image-J. RESULTADOS: O volume das órbitas enucleadas ou evisceradas, com ou sem o uso do implante não apresentaram diferenças estatisticamente significativas (p
- Published
- 2005
7. Avaliação das dimensões orbitárias de coelhos após enucleação e evisceração Rabbit orbital measure evaluations after enucleation and evisceration
- Author
-
Claudia Akemi Shiratori, Silvana Artioli Schellini, and Romualdo Rossa
- Subjects
Tomografia computadorizada por raios X ,lcsh:Ophthalmology ,lcsh:RE1-994 ,Enucleação ocular ,Órbita ,Eye enucleation ,Orbit evisceration ,Tomography, x-ray computed ,Rabbits ,Exenteração orbitária ,Orbit ,Coelhos - Abstract
OBJETIVO: Avaliar o volume orbitário de coelhos recém-nascidos, enucleados ou eviscerados, sem ou com reposição do volume orbitário por esferas de polietileno poroso de 10 mm, usando a tomografia computadorizada, o teste de deslocamento de água e a medida da abertura orbitária por Image-J. MÉTODOS: Estudo experimental, usando 48 coelhos albinos, com idade de 42 dias, submetidos à evisceração ou enucleação, com implante de esfera de polietileno poroso de 10 mm de diâmetro ou sem implante. O lado esquerdo não foi submetido à cirurgia e foi usado como controle. Após 1, 3 e 6 meses, foram sacrificados quatro animais de cada grupo. Os crânios foram preparados para estudo do osso seco por maceração da peça, e analisados em relação ao volume orbitário por tomografia computadorizada, teste de deslocamento de água e avaliação da abertura orbitária usando o software Image-J. RESULTADOS: O volume das órbitas enucleadas ou evisceradas, com ou sem o uso do implante não apresentaram diferenças estatisticamente significativas (pPURPOSE: To assess orbital volume in weaned rabbits, submitted to enucleation and evisceration, with orbital volume reconstitution using porous polyethylene (PP) spheres, analyzed by computed tomography, by the water displacement test and external orbital measures using Image-J software. METHODS: This experimental randomized study consisted of 48 albino rabbits, with 42 days of life, submitted to enucleation (EN) and evisceration (EV), with (WI) or without (NI) implantation of a 10 mm PP sphere. After 1 month (M1), 3 months (M2) and 6 months (M3), 4 animals of each group were sacrificed. The skulls were prepared for dry bone study using the maceration technique. The orbital volume was calculated by computed tomography and by the water displacement test. The results suggest that orbital development in rabbits above 42 days of life is not different regarding evisceration or enucleation, or when an orbital implant is used. The water displacement test showed similar results compared with computed tomography, making a morphometric method in experimental studies worthwhile.
- Published
- 2005
8. Melanoma em cavidade anoftálmica secundária a evisceração: relato de 2 casos e revisão da literatura Malignant melanoma in anophthalmic socket post-evisceration: case reports and literature review
- Author
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Patricia Mitiko Santello Akaishi, Valéria Mariano Kitagawa, Fernando Chahud, and Antonio Augusto Velasco e Cruz
- Subjects
Adult ,Adulto ,Neoplasias uveais ,Orbit evisceration ,Anophthalmos ,Revisão ,Review ,Exenteração orbitária ,Anoftalmia ,Uveal neoplasms ,lcsh:Ophthalmology ,lcsh:RE1-994 ,Case report ,Melanoma ,Relato de caso - Abstract
Os autores relatam 2 casos de pacientes com melanoma em cavidade anoftálmica secundária a eviscerações ocorridas há 30 e 60 anos. Em ambos os casos a análise histopatológica mostrou que o tumor estava aderido a remanescentes esclerais. A implicação desses casos foi discutida no contexto das indicações de evisceração e enucleação.We report 2 cases of malignant melanoma in anophthalmic sockets of patients who had undergone eviscerations 30 and 60 years ago. The histopathologic analysis showed that the tumors were adherent to scleral remnants. The implications of these cases were discussed in the context of the indications of evisceration and enucleation.
- Published
- 2004
9. [Conjunctival squamous cell carcinoma requiring orbital exenteration: case report]
- Author
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Larissa Horikawa, Satto, Mariangela Esther Alencar, Marques, and Silvana Artioli, Schellini
- Subjects
Male ,Antimetabolites, Antineoplastic ,Carcinoma, Squamous Cell ,Humans ,Orbital Neoplasms ,Conjunctival Neoplasms ,Fluorouracil ,Neoplasm Recurrence, Local ,Combined Modality Therapy ,Orbit Evisceration ,Aged - Abstract
A case of a squamous cell carcinoma of the conjunctiva is presented. The lesion was removed with recurrence in another conjunctival site. The patient received cycles of 5-Fluorouracil as adjuvant treatment to the surgical removal and presented unfavorable evolution, requiring orbital exenteration. Comments are made on the use of antimitotic drugs in the management of these lesions.
- Published
- 2011
10. [Cystic orbital teratoma: clinicopathologic study: case report]
- Author
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Iluska Fagundes, Andrade, Mônica F Pombo, Hilarião, Ricardo Carvalho, Rocha, Eduardo Ferrari, Marback, and Roberto Lorens, Marback
- Subjects
Infant, Newborn ,Teratoma ,Humans ,Orbital Neoplasms ,Female ,Orbit Evisceration - Abstract
We report on a case of an congenital orbital tumor of impressive size, occurring in a newborn. The patient underwent orbital exenteration with a histopathologic diagnosis of cystic teratoma. The clinicopathological aspects of such a rare disease are commented.
- Published
- 2006
11. [The use of latex biomembrane in exenteration: case report]
- Author
-
Fernando, Fugimoto, Ana Carolina, Jervásio, Alexandre Kazuo, Misawa, Renato, Garcia, and Suzana, Matayoshi
- Subjects
Male ,Time Factors ,Treatment Outcome ,Latex ,Carcinoma, Basal Cell ,Hevea ,Humans ,Membranes, Artificial ,Eyelid Neoplasms ,Orbit Evisceration ,Aged - Abstract
The latex biomembrane is a material from Hevea brasiliensis and has angiogenic properties, cellular adhesion and extracellular matrix formation. It has been used for the treatment of ulcers in the inferior extremities caused by diabetes, chronic vascular insufficiency and timpanic perforations. In this study we report a case of biomembrane use to promote granulation in the orbital cavity after exenteration in a male, 72 years, who came into our service with a left eyelid lesion for two years. The ocular examination revealed a hyperemic conjunctiva, corneal thinning, cataract and ocular perforation in the left eye. The right eye had no alterations. There was an expansive and ulcerated lesion with orbital septum, frontal bone and lamina papiracea invasion confirmed by tomography. A total exenteration of the cavity was made and the biomembrane was applied to the affected site. Changes were made every 24 hours in the first seven days, and every other day in the following seven days. The biomembrane had to be taken from the patient because no granulation could be seen. Just one occurred and a half month later. Exenteration is a procedure in which all of the orbital content is removed. If the eyelids are included it is called total exenteration. There are many exenteration techniques as spontaneous granulation, skin grafts, miocutaneous flap, etc. In this case we used a material which has been successfully applied for other wounds, but with no efficiency in our experience. More studies are necessary so that we can present benefits to our patients in the ophthalmologic area with the latex biomembrane.
- Published
- 2006
12. [Orbital fat evaluation after enucleation and evisceration in rabbits]
- Author
-
Claudia Akemi, Shiratori, Silvana Artioli, Schellin, Mariângela E Alencar, Marques, Carlos Roberto, Padovani, and Carlos Roberto Pereira, Padovani
- Subjects
Time Factors ,Adipose Tissue ,Adipocytes ,Animals ,Cell Count ,Prospective Studies ,Rabbits ,Orbit ,Orbit Evisceration ,Eye Enucleation - Abstract
To evaluate rabbit adipocytes of the orbital fat tissue after enucleation and evisceration.Twenty-tree specimens from 23 rabbits aged 42 days which had undergone socket surgery (evisceration and enucleation) were evaluated. The animals were sacrificed on the 30th, 90th and 180th postoperative day. The orbital fat tissue was prepared for light microscope evaluation (magnification: 200x) and analyzed by IpWin 32 software program. The number of cells in each field and the area of each adipocyte were used to calculate the cell median area. The data were compared between the groups (enucleation and evisceration) and submitted to statistical analysis by a non-parametrical test.There were no statistical differences when considering the mean area of adipocytes between enucleation or evisceration or time of sacrifice.The volume decrease in the anophthalmic cavity is not related to orbital fat atrophy. The genesis of orbital volume reduction might result from the spacial distribution and interrelationships of the orbital soft tissue rather than changes in volume of adipocytes.
- Published
- 2005
13. [Rabbit orbital measure evaluations after enucleation and evisceration]
- Author
-
Claudia Akemi, Shiratori, Silvana Artioli, Schellini, Seizo, Yamashita, Carlos Roberto, Padovani, and Romualdo, Rossa
- Subjects
Animals, Newborn ,Models, Animal ,Animals ,Rabbits ,Tomography, X-Ray Computed ,Orbit ,Orbit Evisceration ,Eye Enucleation ,Orbital Implants - Abstract
To assess orbital volume in weaned rabbits, submitted to enucleation and evisceration, with orbital volume reconstitution using porous polyethylene (PP) spheres, analyzed by computed tomography, by the water displacement test and external orbital measures using Image-J software.This experimental randomized study consisted of 48 albino rabbits, with 42 days of life, submitted to enucleation (EN) and evisceration (EV), with (WI) or without (NI) implantation of a 10 mm PP sphere. After 1 month (M1), 3 months (M2) and 6 months (M3), 4 animals of each group were sacrificed. The skulls were prepared for dry bone study using the maceration technique. The orbital volume was calculated by computed tomography and by the water displacement test. The results suggest that orbital development in rabbits above 42 days of life is not different regarding evisceration or enucleation, or when an orbital implant is used. The water displacement test showed similar results compared with computed tomography, making a morphometric method in experimental studies worthwhile.
- Published
- 2005
14. [Exenteration: a retrospective study]
- Author
-
Milena, Atique-Tacla, Luis, Paves, Max Domingues, Pereira, and Paulo Gois, Manso
- Subjects
Adult ,Aged, 80 and over ,Male ,Adolescent ,Eye Neoplasms ,Racial Groups ,Visual Acuity ,Conjunctival Neoplasms ,Middle Aged ,Surgical Flaps ,Age Distribution ,Child, Preschool ,Carcinoma, Squamous Cell ,Humans ,Female ,Postoperative Period ,Sex Distribution ,Orbit Evisceration ,Aged ,Follow-Up Studies ,Retrospective Studies - Abstract
To review all cases of orbit exenteration performed at the Orbit Sector, Ophthalmology Department - Federal University of São Paulo, from 1998 to 2003.We reviewed conditions leading to orbital exenteration in 21 patients at the Orbit Sector of Unifesp-EPM from August 1998 to May 2003. Data regarding sex, age, race, primary lesion site, visual acuity at the moment of diagnosis, previous surgeries related to the exenteration, type of performed surgery, histopathologic diagnosis, postoperative complications and use of adjuvant treatment were collected.21 patient charts were retrospectively analyzed. Ages ranged from 5 to 91 years (mean of 58.5 years). Of these, 12 were male and 9 were female, most of them Caucasian. All lesions that led to exenteration were malignant neoplasias; however, none were metastatic. Lesions originated from eyelids in twelve patients, from bulbar conjunctiva in six and from the orbit in three. Cases were also classified as squamous cell carcinoma (eleven cases), basal cell carcinoma (four cases), sebaceous gland carcinoma (two cases), rhabdomyosarcoma (two cases), mucoepidermoid carcinoma (one case) and adnexal microcistic carcinoma (one case). Visual acuity at the moment of diagnosis ranged from 20/40 to no light perception. Only six patients had been submitted to previous surgeries related to the exenteration. After surgery, three patients suffered graft necrosis, one presented ethmoidal sinus fistula to the orbit and one presented orbital socket shrinkage. Six patients needed postoperative radiotherapy and two had been previously submitted to chemotherapy.Most patients analyzed in our study presented lesions that are usually small in the beginning; however, they can disseminate to the orbit in the absence of adequate treatment.
- Published
- 2005
15. Choroidal metastasis of gastric adenocarcinoma as a first sign of systemic disease recurrence: case report.
- Author
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MELO, DANIEL HARDY, PIERRE FILHO, PAULO DE TARSO PONTE, PARENTE GOMES, PAULO ROGERS, SIEBRA DE HOLANDA, ANDRÉA GIFONI, and DA PONTE AMADEI, LARISSA PEREIRA
- Subjects
METASTASIS ,EYE diseases ,DISEASE relapse ,OPHTHALMOLOGY - Abstract
Copyright of Arquivos Brasileiros de Oftalmologia is the property of Arquivos Brasileiros de Oftalmologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2010
- Full Text
- View/download PDF
16. [Conjunctival squamous cell carcinoma requiring orbital exenteration: case report].
- Author
-
Satto LH, Marques ME, and Schellini SA
- Subjects
- Aged, Antimetabolites, Antineoplastic therapeutic use, Carcinoma, Squamous Cell pathology, Combined Modality Therapy methods, Conjunctival Neoplasms pathology, Fluorouracil therapeutic use, Humans, Male, Neoplasm Recurrence, Local, Orbital Neoplasms pathology, Carcinoma, Squamous Cell therapy, Conjunctival Neoplasms therapy, Orbit Evisceration, Orbital Neoplasms therapy
- Abstract
A case of a squamous cell carcinoma of the conjunctiva is presented. The lesion was removed with recurrence in another conjunctival site. The patient received cycles of 5-Fluorouracil as adjuvant treatment to the surgical removal and presented unfavorable evolution, requiring orbital exenteration. Comments are made on the use of antimitotic drugs in the management of these lesions.
- Published
- 2012
- Full Text
- View/download PDF
17. [Cystic orbital teratoma: clinicopathologic study: case report].
- Author
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Andrade IF, Hilarião MF, Rocha RC, Marback EF, and Marback RL
- Subjects
- Female, Humans, Infant, Newborn, Orbit Evisceration, Orbital Neoplasms congenital, Orbital Neoplasms surgery, Teratoma congenital, Teratoma surgery, Orbital Neoplasms pathology, Teratoma pathology
- Abstract
We report on a case of an congenital orbital tumor of impressive size, occurring in a newborn. The patient underwent orbital exenteration with a histopathologic diagnosis of cystic teratoma. The clinicopathological aspects of such a rare disease are commented.
- Published
- 2008
- Full Text
- View/download PDF
18. [The use of latex biomembrane in exenteration: case report].
- Author
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Fugimoto F, Jervásio AC, Misawa AK, Garcia R, and Matayoshi S
- Subjects
- Aged, Carcinoma, Basal Cell pathology, Carcinoma, Basal Cell surgery, Eyelid Neoplasms pathology, Eyelid Neoplasms surgery, Hevea, Humans, Male, Time Factors, Treatment Outcome, Carcinoma, Basal Cell therapy, Eyelid Neoplasms therapy, Latex therapeutic use, Membranes, Artificial, Orbit Evisceration
- Abstract
The latex biomembrane is a material from Hevea brasiliensis and has angiogenic properties, cellular adhesion and extracellular matrix formation. It has been used for the treatment of ulcers in the inferior extremities caused by diabetes, chronic vascular insufficiency and timpanic perforations. In this study we report a case of biomembrane use to promote granulation in the orbital cavity after exenteration in a male, 72 years, who came into our service with a left eyelid lesion for two years. The ocular examination revealed a hyperemic conjunctiva, corneal thinning, cataract and ocular perforation in the left eye. The right eye had no alterations. There was an expansive and ulcerated lesion with orbital septum, frontal bone and lamina papiracea invasion confirmed by tomography. A total exenteration of the cavity was made and the biomembrane was applied to the affected site. Changes were made every 24 hours in the first seven days, and every other day in the following seven days. The biomembrane had to be taken from the patient because no granulation could be seen. Just one occurred and a half month later. Exenteration is a procedure in which all of the orbital content is removed. If the eyelids are included it is called total exenteration. There are many exenteration techniques as spontaneous granulation, skin grafts, miocutaneous flap, etc. In this case we used a material which has been successfully applied for other wounds, but with no efficiency in our experience. More studies are necessary so that we can present benefits to our patients in the ophthalmologic area with the latex biomembrane.
- Published
- 2007
- Full Text
- View/download PDF
19. [Orbital fat evaluation after enucleation and evisceration in rabbits].
- Author
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Shiratori CA, Schellin SA, Marques ME, Padovani CR, and Padovani CR
- Subjects
- Adipose Tissue cytology, Animals, Cell Count, Orbit cytology, Orbit surgery, Orbit Evisceration, Prospective Studies, Rabbits, Time Factors, Adipocytes, Adipose Tissue anatomy & histology, Eye Enucleation, Orbit anatomy & histology
- Abstract
Purpose: To evaluate rabbit adipocytes of the orbital fat tissue after enucleation and evisceration., Methods: Twenty-tree specimens from 23 rabbits aged 42 days which had undergone socket surgery (evisceration and enucleation) were evaluated. The animals were sacrificed on the 30th, 90th and 180th postoperative day. The orbital fat tissue was prepared for light microscope evaluation (magnification: 200x) and analyzed by IpWin 32 software program. The number of cells in each field and the area of each adipocyte were used to calculate the cell median area. The data were compared between the groups (enucleation and evisceration) and submitted to statistical analysis by a non-parametrical test., Results: There were no statistical differences when considering the mean area of adipocytes between enucleation or evisceration or time of sacrifice., Conclusion: The volume decrease in the anophthalmic cavity is not related to orbital fat atrophy. The genesis of orbital volume reduction might result from the spacial distribution and interrelationships of the orbital soft tissue rather than changes in volume of adipocytes.
- Published
- 2005
- Full Text
- View/download PDF
20. [Rabbit orbital measure evaluations after enucleation and evisceration].
- Author
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Shiratori CA, Schellini SA, Yamashita S, Padovani CR, and Rossa R
- Subjects
- Animals, Animals, Newborn, Orbit growth & development, Rabbits growth & development, Tomography, X-Ray Computed, Eye Enucleation, Models, Animal, Orbit Evisceration, Orbital Implants, Rabbits anatomy & histology
- Abstract
Purpose: To assess orbital volume in weaned rabbits, submitted to enucleation and evisceration, with orbital volume reconstitution using porous polyethylene (PP) spheres, analyzed by computed tomography, by the water displacement test and external orbital measures using Image-J software., Methods: This experimental randomized study consisted of 48 albino rabbits, with 42 days of life, submitted to enucleation (EN) and evisceration (EV), with (WI) or without (NI) implantation of a 10 mm PP sphere. After 1 month (M1), 3 months (M2) and 6 months (M3), 4 animals of each group were sacrificed. The skulls were prepared for dry bone study using the maceration technique. The orbital volume was calculated by computed tomography and by the water displacement test. The results suggest that orbital development in rabbits above 42 days of life is not different regarding evisceration or enucleation, or when an orbital implant is used. The water displacement test showed similar results compared with computed tomography, making a morphometric method in experimental studies worthwhile.
- Published
- 2005
- Full Text
- View/download PDF
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