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Dive into the research topics where Renato Wendell Damasceno is active.

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Featured researches published by Renato Wendell Damasceno.


Ophthalmic Plastic and Reconstructive Surgery | 2011

Involutional entropion and ectropion of the lower eyelid: prevalence and associated risk factors in the elderly population.

Renato Wendell Damasceno; Midori Hentona Osaki; Paulo Elias Correa Dantas; Rubens Belfort

Purpose: To determine the prevalence of involutional entropion and ectropion of the lower eyelid in the elderly population; to examine how these disorders are related to gender, age, skin color, and axial ocular globe projection; and to define the incidence of associated ocular surface and pathologic eyelid findings. Methods: An ophthalmic survey was conducted in 24,565 elderly people. All participants underwent ophthalmic examination by general ophthalmologists to identify entropion and ectropion. Information about associated ocular surface and pathologic eyelid findings were collected from all patients with involutional eyelid malposition. Patients with involutional entropion and ectropion underwent measurements of the axial ocular globe projection. The Pearson chi-square test and the Mann-Whitney U test were performed. Results: The prevalence of involutional entropion was 2.1%; 1.9% in men and 2.4% in women. The prevalence of involutional ectropion was 2.9%; 5.1% in men and 1.5% in women. Dry eye syndrome, lower retractor laxity, and superficial punctate keratopathy were seen significantly more often in patients with involutional entropion than in those with involutional ectropion (p < 0.001). Chronic conjunctivitis was significantly more common in patients with involutional ectropion than in those with involutional entropion (p < 0.001). The axial ocular globe projection was significantly smaller in patients with involutional entropion than in those with involutional ectropion (p < 0.001). Conclusions: The prevalence of involutional entropion and ectropion in the elderly population is 2.1% and 2.9%, respectively. The axial ocular globe position plays a pathogenic role in involutional lower eyelid malposition.


Aesthetic Surgery Journal | 2011

Treatment of the Tear Trough Deformity With Hyaluronic Acid

Giovanni André Pires Viana; Midori Hentona Osaki; Angelino Julio Cariello; Renato Wendell Damasceno; Tammy H. Osaki

BACKGROUND Volume loss and muscular hyperactivity are two major components of the aging process that contribute to the formation of the folds and wrinkles. Tear trough deformity is one of the most difficult depressions to correct surgically. OBJECTIVE The authors evaluate the results of periorbital filling with hyaluronic acid (HA) in a small series of patients. METHODS Between June 2008 and December 2009, 25 patients were treated with HA to correct tear trough deformities. The HA was administered into the preperiosteal tissues with a serial puncture technique and approximately 0.1 mL was injected at each pass. Each patients before and after photographs were reviewed by three surgeons; to objectively assess the outcomes, a quantitative scale was used to grade the pre- and postinjection results. The significance of subjective aesthetic evaluation of the photographs was evaluated with the Mann-Whitney U-test. Differences were regarded as significant if probabilities were less than 0.05. RESULTS The mean (SD) volume per side needed to achieve correction was 0.54 (0.27) mL on the right and 0.61 (0.30) mL on the left. Complications included some degree of bruising, erythema, and local swelling. Most patients (88%) had cosmetic improvement according to the independent evaluation. CONCLUSIONS All patients were very satisfied with their results. During the course of the study, the authors determined that the ideal candidates for this treatment are young, with thick skin and a definite hollow.


Arquivos Brasileiros De Oftalmologia | 2010

Ten-year follow-up of a case series of primary epithelial neoplasms of the lacrimal gland: clinical features, surgical treatment and histopathological findings

Rodrigo Ribeiro Santos; Renato Wendell Damasceno; Fernanda Silva Lopes de Pontes; Sylvia Regina Temer Cursino; Maria Cristina Nishiwaki-Dantas; José Vital Filho; Paulo Elias Correa Dantas

PURPOSE To describe and analyze the features of a cases series of patients with primary epithelial neoplasms of the lacrimal gland, its surgical treatment, and histopathological findings. METHODS Retrospective evaluation of files from patients with primary epithelial neoplasms of the lacrimal gland in the period from 1997 to 2007. All patients with primary epithelial tumors of the lacrimal gland were included in this study. Data on gender, age, clinical features, surgical treatment, histopathological findings and follow-up were collected. The slides with histological sections of the tumors were reviewed by the same pathologist. RESULTS During the study period, there were 12 patients, 5 (41.7%) with benign tumors, all pleomorphic adenomas (benign mixed tumor) and 7 (58.3%) with malignant neoplasms, thus distributed: four cases of adenoid cystic carcinoma, two of mucoepidermoid carcinoma and one carcinoma expleomorphic adenoma. Globally, patients mean age was 54.1 years-old (ranging from 14 to 70 years-old), with mean age of 52.4 years-old (ranging from 14 to 65 years-old) for benign neoplasms, and 55.3 years-old for malignant neoplasms (ranging from 26 to 70 years-old). Clinical follow-up information, ranging from 2 to 10 years-old, was available for all patients. Three patients developed distant metastasis and died of disease. CONCLUSIONS The most frequent primary epithelial neoplasms of the lacrimal gland were pleomorphic adenoma and adenoid cystic carcinoma during the study period. Malignant tumors were more frequent than benign tumors. The histopathological diagnosis and the disease initial stage can play a significant role in patients survival.


Ophthalmic Plastic and Reconstructive Surgery | 2011

Involutional ectropion and entropion: clinicopathologic correlation between horizontal eyelid laxity and eyelid extracellular matrix.

Renato Wendell Damasceno; Midori Hentona Osaki; Paulo Elias Correa Dantas; Rubens Belfort

Purpose: To investigate the clinicopathologic correlation between horizontal eyelid laxity and extracellular matrix components, such as collagen and elastic fibers, in involutional ectropion and entropion. Another goal was to compare the differences between involutional ectropion and entropion in regard to extracellular matrix content using computer-assisted morphometry. Methods: This clinicopathologic study included 20 consecutive patients with involutional ectropion (group 1) and 20 consecutive patients with involutional entropion (group 2). The pinch test was performed to measure horizontal eyelid laxity in both groups. Full-thickness eyelid biopsy specimens were examined by light microscopy and computer-assisted morphometry. The Mann-Whitney U test, the Pearson chi-square test, the Pearson correlation coefficient calculation, and a linear regression analysis were performed. Results: All sections of specimens from patients in groups 1 and 2 revealed abnormal collagen and elastic fibers. The Pearson correlation coefficient revealed a significant negative correlation between horizontal eyelid laxity and extracellular matrix content in the eyelid skin, the pretarsal orbicularis oculi muscle, the perimeibomian tarsal stroma, and the intermeibomian tarsal stroma. Linear regression demonstrated that horizontal eyelid laxity is dependent upon extracellular matrix components in all eyelid regions. Collagen fiber content was significantly increased in specimens from patients in group 1 compared with specimens from patients in group 2. Conclusions: The present findings suggest that a reduction of collagen and elastic fibers may contribute to the development of excessive horizontal eyelid laxity in patients with involutional ectropion and entropion of the lower eyelid.


Orbit | 2011

Pathogenesis of involutional ectropion and entropion: the involvement of matrix metalloproteinases in elastic fiber degradation.

Renato Wendell Damasceno; Ludwig M. Heindl; Carmen Hofmann-Rummelt; Rubens Belfort; Ursula Schlötzer-Schrehardt; Friedrich E. Kruse; Leonard M. Holbach

Purpose: To determine the elastic fiber content and ultrastructure as well as the expression of elastin-degrading enzymes in biopsy specimens from patients with involutional ectropion and entropion. Materials and Methods: Twenty consecutive patients with involutional ectropion (group 1) and twenty consecutive patients with entropion (group 2) were matched with twenty control patients (basal cell carcinoma) regarding age and gender. Full-thickness eyelid resections performed in study and control patients were examined by light and transmission electron microscopy, computer-assisted measurements, and immunohistochemistry using antibodies against matrix metalloproteinase (MMP)-2, MMP- 7, and MMP-9. The Kruskal-Wallis test and the Pearson chi-square test were performed. Results: Histopathologic analysis of the surgical specimens from patients with involutional ectropion and entropion showed a significant loss of elastic fibers in the eyelid skin, the pretarsal orbicularis oculi muscle, the perimeibomian tarsal stroma, and the intermeibomian tarsal stroma (P < 0.001). Residual elastic fibers revealed an abnormal ultrastructure. Immunohistochemistry demonstrated a significant overexpression of MMP- 2, MMP-7, and MMP-9 in the eyelid skin, the pretarsal orbicularis oculi muscle, the perimeibomian tarsal stroma, the intermeibomian tarsal stroma, and the conjunctiva in groups 1 and 2 compared to controls (P < 0.001). Conclusions: The present findings indicate that upregulation of elastolytic enzymes contributes to elastic fibre degradation in patients with involutional ectropion and entropion.


Arquivos Brasileiros De Oftalmologia | 2015

Eyelid aging: pathophysiology and clinical management

Renato Wendell Damasceno; G. Avgitidou; Rubens Belfort; Paulo Elias Correa Dantas; Leonard M. Holbach; Ludwig M. Heindl

Life expectancy is increasing in most countries. With increasing age, many individuals may develop involutional ophthalmic diseases, such as eyelid aging. Dermatochalasis, ptosis, ectropion, and entropion are common disorders in middle-aged and older adults. This review outlines the pathophysiology and clinical management of these involutional eyelid disorders. Recently, a decrease in elastic fibers with ultrastructural abnormalities and an overexpression of elastin-degrading enzymes have been demonstrated in involutional ectropion and entropion. This may be the consequence of local ischemia, inflammation, and/or chronic mechanical stress. Eyelid aging with progressive loss of tone and laxity may affect the ocular surface and adnexal tissues, resulting in different clinical symptoms and signs. Surgical management depends on the appropriate correction of the underlying anatomical defect.


Ophthalmic Plastic and Reconstructive Surgery | 2011

Upper blepharoplasty with or without resection of the orbicularis oculi muscle: a randomized double-blind left-right study.

Renato Wendell Damasceno; Angelino Julio Cariello; Emmerson Badaró Cardoso; Giovanni André Pires Viana; Midori Hentona Osaki

Purpose: To compare the aesthetic outcomes of the upper blepharoplasty with or without resection of the preseptal orbicularis oculi muscle. Methods: An interventional randomized double-blind left-right study was conducted in 15 consecutive patients with dermatochalasis of the upper eyelid. One side was randomly chosen for resection of the preseptal orbicularis oculi muscle (group 1). The orbicularis oculi muscle of the contralateral side was preserved (group 2). All patients scored differences between both sides on the seventh day, the thirtieth day, and the ninetieth day after the surgery regarding the following symptoms: edema, hematoma, itching, and pain. Three masked ophthalmic plastic specialists analyzed the aesthetic outcomes by the visual analogical scale. Results: The scoring of symptoms was significantly higher in group 1 than in group 2 on the seventh postoperative day. On the thirtieth and ninetieth days, there were no significant differences between groups 1 and 2. The analysis by 3 masked observers showed that the aesthetic result was worse in group 1 than in group 2 on the seventh postoperative day. There were no significant differences between groups 1 and 2 on the thirtieth and ninetieth days. Conclusions: Upper blepharoplasty causes more postoperative symptoms and presents worse initial aesthetic outcome when the preseptal orbicularis oculi muscle is excised. However, the final aesthetic outcome is the same when the preseptal orbicularis oculi muscle is excised or preserved.


Arquivos Brasileiros De Oftalmologia | 2009

Plasmacytoma of the orbit involving lacrimal gland with secondary transformation into multiple myeloma: case report

Ivana Lopes Romero; Felipe Augusto Garcez de Campos; Renato Wendell Damasceno; José Vital Filho; Simone Bison

The authors present a rare case of plasmacytoma of the orbit involving lacrimal gland with secondary transformation into multiple myeloma in a 42-year-old woman. The lesion was surgically removed and analyzed. Histopathological examination with immunostaining revealed it to be positive for immunoglobulin G and Kappa chains, demonstrating monoclonality. However, no abnormality was observed on serum electrophoresis, skeletal survey and bone marrow aspiration. Therefore, the tumor was diagnosed solitary plasmacytoma of bone. The patient was treated with external beam radiotherapy and has remained disease free for 5 years and 6 months until 2007, when she presented a pathological fracture due to multiple myeloma. Extensive medical work-up to rule out multiple myeloma or other malignant lymphoproliferative conditions involving orbit or ocular adnexa is needed when the diagnosis of solitary plasmacytoma of bone is suspected because treatment and prognosis are very different.


Arquivos Brasileiros De Oftalmologia | 2011

Tratamento dos sulcos palpebromalar e nasojugal com ácido hialurônico

Giovanni André Pires Viana; Midori Hentona Osaki; Angelino Julio Cariello; Renato Wendell Damasceno

BACKGROUND: Volume loss and muscular hyperactivity are two major components of the aging process that contribute to the formation of the folds and wrinkles. Tear trough deformity is one of the most difficult depressions to correct surgically. PURPOSE: The aim of this study was to evaluate the results of ten patients submitted to periorbital filling with hyaluronic acid gel filler. METHODS: Between June and August, 2008, 10 patients have had their tears troughs treated with hyaluronic acid gel filler. The filler was introduced by a serial puncture technique and approximately 0.1 ml was injected at each pass. The filler was placed in the pre-periosteal tissue. Patients photographs before and after the procedure were reviewed to assess the outcomes. RESULTS: The mean volume per side needed to achieve correction was on the right side 0.61 ml (SD=0.25) and on the left side 0.65 ml (SD=0.26). The most common complications were bruising, erythema, local swelling, and pain at the injection site. The effect of treatment lasted up to 12 months. CONCLUSIONS: This pilot study showed that the treatment of tear trough deformity with hyaluronic acid gel filler was feasible, predictable and effective. All patients were very satisfied with their results.BACKGROUND Volume loss and muscular hyperactivity are two major components of the aging process that contribute to the formation of the folds and wrinkles. Tear trough deformity is one of the most difficult depressions to correct surgically. PURPOSE The aim of this study was to evaluate the results of ten patients submitted to periorbital filling with hyaluronic acid gel filler. METHODS Between June and August, 2008, 10 patients have had their tears troughs treated with hyaluronic acid gel filler. The filler was introduced by a serial puncture technique and approximately 0.1 ml was injected at each pass. The filler was placed in the pre-periosteal tissue. Patients photographs before and after the procedure were reviewed to assess the outcomes. RESULTS The mean volume per side needed to achieve correction was on the right side 0.61 ml (SD=0.25) and on the left side 0.65 ml (SD=0.26). The most common complications were bruising, erythema, local swelling, and pain at the injection site. The effect of treatment lasted up to 12 months. CONCLUSIONS This pilot study showed that the treatment of tear trough deformity with hyaluronic acid gel filler was feasible, predictable and effective. All patients were very satisfied with their results.


Arquivos Brasileiros De Oftalmologia | 2009

Tracoma: estudo epidemiológico de escolares em Alagoas - Brasil

Renato Wendell Damasceno; Rodrigo Ribeiro Santos; Thiago Rodrigues Tavares Cavalcanti; Richard Yudi Hida; Mário Jorge Santos; Andréa Maria Cavalcante Santos; Paulo Elias Correa Dantas

OBJETIVOS: Definir a taxa de deteccao de tracoma em escolares do Estado de Alagoas - Brasil. METODOS: A amostra foi constituida de 6.424 criancas e adolescentes. A avaliacao clinica dos escolares foi realizada por graduandos da Faculdade de Medicina sob supervisao de professores do Departamento de Oftalmologia, seguindo os criterios da Organizacao Mundial de Saude. A avaliacao clinica foi caracterizada por exame dos cilios, das palpebras, da conjuntiva e da cornea de ambos os olhos. Os estudantes foram catalogados, anotando-se nome, sexo, idade, diagnostico da forma clinica e municipio. Quanto a idade, os escolares foram divididos em tres grupos: grupo A ( 14 anos). RESULTADOS: A taxa de deteccao de tracoma foi de 4,5%. Dos 3.280 estudantes do sexo masculino, 161 (4,9%) casos foram considerados confirmados, e dos 3.144 estudantes do sexo feminino, 131 (4,2%) casos foram considerados confirmados. Do total de escolares do grupo A, B e C, respectivamente 175 (5,3%), 113 (8,0%) e 4 (1,6%), foram considerados casos confirmados. CONCLUSAO: Nesta regiao, o tracoma parece nao ter sido erradicado e, portanto, deve permanecer como diagnostico diferencial de conjuntivite folicular cronica em criancas e adolescentes advindos dela.ABSTRACT Purpose: To define the detection rate of trachoma in scholarsfrom Alagoas - Brazil. Methods: The sample included 6,424children and adolescents. Scholar’s clinical evaluation wasperformed by medical students under the supervision of pro-fessors of the Department of Ophthalmology, according to theWorld Health Organization guidelines. The clinical evaluationwas characterized by eyelashes, eyelids, conjunctiva and cor-nea examination in both eyes. The scholars were cataloged anddata of name, sex, age, clinical forms diagnosis and city wererecorded. Regarding the age, the students were divided intothree groups: group A ( 14 years old). Results: The detection rate oftrachoma was 4.5%. From 3,280 male scholars, 161 (4.9%) caseswere confirmed; from 3,144 female scholars, 131 (4.2%) caseswere considered confirmed. From the total scholars in group A,B and C; respectively 175 (5.3%), 113 (8.0%) and 4 (1.6%) wereconsidered confirmed cases.

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Midori Hentona Osaki

Federal University of São Paulo

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Angelino Julio Cariello

Federal University of São Paulo

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Rubens Belfort

Federal University of São Paulo

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Leonard M. Holbach

University of Erlangen-Nuremberg

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Simone Bison

Federal University of São Paulo

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