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1.
Pediatr Blood Cancer ; 68(5): e28964, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33624399

RESUMO

Standardized guidelines for assessing tumor response to therapy are essential for designing and conducting clinical trials. The Response Evaluation Criteria In Solid Tumors (RECIST) provide radiological standards for assessment of solid tumors. However, no such guidelines exist for the evaluation of intraocular cancer, and ocular oncology clinical trials have largely relied on indirect measures of therapeutic response-such as progression-free survival-to evaluate the efficacy of treatment agents. Herein, we propose specific criteria for evaluating treatment response of retinoblastoma, the most common pediatric intraocular cancer, and emphasize a multimodal imaging approach for comprehensive assessment of retinoblastoma tumors in clinical trials.


Assuntos
Critérios de Avaliação de Resposta em Tumores Sólidos , Neoplasias da Retina/diagnóstico por imagem , Retinoblastoma/diagnóstico por imagem , Humanos , Imagem Multimodal/métodos
2.
Genes Chromosomes Cancer ; 59(10): 584-590, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32390242

RESUMO

Retinoblastoma (RB) is a childhood intraocular cancer initiated by biallelic inactivation of the RB tumor suppressor gene (RB1-/- ). RB can be hereditary (germline RB1 pathogenic allele is present) or non-hereditary. Somatic copy number alterations (SCNAs) contribute to subsequent tumorigenesis. Previous studies of only enucleated RB eyes have reported associations between heritability status and the prevalence of SCNAs. Herein, we use an aqueous humor (AH) liquid biopsy to investigate RB genomic profiles in the context of germline RB1 status, age, and International Intraocular Retinoblastoma Classification (IIRC) clinical grouping for both enucleated and salvaged eyes. Between 2014 and 2019, AH was sampled from a total of 54 eyes of 50 patients. Germline RB1 status was determined from clinical blood testing, and cell-free DNA from AH was analyzed for SCNAs. Of the 50 patients, 23 (46.0%; 27 eyes) had hereditary RB, and 27 (54.0%, 27 eyes) had non-hereditary RB. Median age at diagnosis was comparable between hereditary (13 ± 10 months) and non-hereditary (13 ± 8 months) eyes (P = 0.818). There was no significant difference in the prevalence or number of SCNAs based on (1) hereditary status (P > 0.56) or (2) IIRC grouping (P > 0.47). There was, however, a significant correlation between patient age at diagnosis, and (1) number of total SCNAs (r[52] = 0.672, P < 0.00001) and (2) number of highly-recurrent RB SCNAs (r[52] = 0.616, P < 0.00001). This evidence does not support the theory that specific molecular or genomic subtypes exist between hereditary and non-hereditary RB; rather, the prevalence of genomic alterations in RB eyes is strongly related to patient age at diagnosis.


Assuntos
Instabilidade Genômica , Neoplasias da Retina/genética , Retinoblastoma/genética , Fatores Etários , Criança , Pré-Escolar , Variações do Número de Cópias de DNA , Testes Genéticos/estatística & dados numéricos , Células Germinativas/metabolismo , Humanos , Lactente , Prevalência , Retina/metabolismo , Neoplasias da Retina/diagnóstico , Neoplasias da Retina/epidemiologia , Retinoblastoma/diagnóstico , Retinoblastoma/epidemiologia , Proteínas de Ligação a Retinoblastoma/genética , Ubiquitina-Proteína Ligases/genética
3.
Clin Exp Ophthalmol ; 47(2): 193-200, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-30156057

RESUMO

IMPORTANCE: Although the most recent American Joint Committee on cancer staging guidelines for ocular surface squamous neoplasia place a heightened emphasis on biopsy and histopathologic analysis, the interpretation and clinical relevance of these staging criteria are not always clear. We address limitations of using histopathologic analysis to predict clinical outcomes and suggest less-invasive assessments. BACKGROUND: To investigate the impact of histopathologic depth of invasion on outcomes for tumours with the common presentation of multiple structure involvement. DESIGN: Retrospective chart review at tertiary institution. SAMPLES: Of 41 eyes with ocular surface squamous neoplasia between 2012 and 2017, 27 tumours involving multiple ocular structures clinically were included. METHODS: Biopsied tumours were determined to be invasive beyond the basement membrane or non-invasive; non-biopsied tumours were clinically identified with unknown depth of invasion. Outcomes were compared using Fisher's exact or Student's t tests. MAIN OUTCOME MEASURES: Proportion of tumours cured, recurred and/or persisting. RESULTS: Twelve tumours (44%) received primary excisional biopsy, 10 (37%) received chemotherapy without biopsy and 5 (19%) received chemotherapy and biopsy. Clinical diagnosis was correct in all biopsied cases. While there were no significant differences in outcomes between invasive vs non-invasive tumours or treatments, there was a trend toward larger basal diameter in recurrent tumours regardless of treatment. CONCLUSIONS AND RELEVANCE: When ocular surface squamous neoplasia tumours with similar clinical involvement were compared, histopathologic depth of invasion was not predictive of clinical outcomes. Future staging criteria may consider the potential of largest basal dimension for more accurate prognostication.


Assuntos
Carcinoma de Células Escamosas/patologia , Neoplasias da Túnica Conjuntiva/patologia , Doenças da Córnea/patologia , Neoplasias Oculares/patologia , Neoplasias Palpebrais/patologia , Doenças do Aparelho Lacrimal/patologia , Idoso , Antineoplásicos/uso terapêutico , Biópsia , Carcinoma de Células Escamosas/diagnóstico por imagem , Carcinoma de Células Escamosas/tratamento farmacológico , Neoplasias da Túnica Conjuntiva/diagnóstico por imagem , Neoplasias da Túnica Conjuntiva/tratamento farmacológico , Doenças da Córnea/diagnóstico por imagem , Doenças da Córnea/tratamento farmacológico , Neoplasias Oculares/diagnóstico por imagem , Neoplasias Oculares/tratamento farmacológico , Neoplasias Palpebrais/diagnóstico por imagem , Neoplasias Palpebrais/tratamento farmacológico , Feminino , Fluoruracila/uso terapêutico , Humanos , Interferon alfa-2/uso terapêutico , Doenças do Aparelho Lacrimal/diagnóstico por imagem , Doenças do Aparelho Lacrimal/tratamento farmacológico , Masculino , Pessoa de Meia-Idade , Mitomicina/uso terapêutico , Invasividade Neoplásica , Estadiamento de Neoplasias , Estudos Retrospectivos , Centros de Atenção Terciária , Tomografia de Coerência Óptica
4.
Ophthalmic Plast Reconstr Surg ; 35(6): 525-534, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31498270

RESUMO

PURPOSE: Myopathic blepharoptoses (ptoses) is a complex group of disorders. To date, no formal categorization scheme has been developed based on associated ocular and systemic findings, genetic fingerprint, treatment, and prognosis for each ptosis in this group. We report a new classification scheme for myopathic ptoses. METHODS: Literature review and classification development. RESULTS: A new classification scheme of myopathic ptoses includes isolated static myopathic ptosis (congenital ptosis), static myopathic ptosis associated with aberrant innervation and those associated with periocular abnormalities, and progressive myopathic ptoses that affect the levator muscle and other muscle groups in childhood and adulthood. CONCLUSIONS: Making the distinction of myopathic ptosis type early will maximize patient outcomes by optimizing surgical and systemic management and facilitating the recruitment of subspecialists to care for patients with these challenging conditions.The authors present a comprehensive and effective myopathic ptosis classification scheme to optimize surgical management and facilitate subspecialty care.


Assuntos
Blefaroptose/diagnóstico , Músculos Oculomotores/patologia , Blefaroptose/classificação , Humanos
5.
Ophthalmology ; 125(3): 453-458, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29056300

RESUMO

PURPOSE: To provide a set of surveillance guidelines for children at risk for development of retinoblastoma. DESIGN: Consensus panel. PARTICIPANTS: Expert panel of ophthalmic oncologists, pathologists, and geneticists. METHODS: A group of members of the American Association of Ophthalmic Oncologists and Pathologists (AAOOP) with support of the American Association for Pediatric Ophthalmology and Strabismus and the American Academy of Pediatrics (AAP) was convened. The panel included representative ophthalmic oncologists, pathologists, and geneticists from retinoblastoma referral centers located in various geographic regions who met and discussed screening approaches for retinoblastoma. A patient "at risk" was defined as a person with a family history of retinoblastoma in a parent, sibling, or first- or second-degree relative. MAIN OUTCOME MEASURES: Screening recommendations for children at risk for retinoblastoma. RESULTS: Consensus statement from the panel: (1) Dedicated ophthalmic screening is recommended for all children at risk for retinoblastoma above the population risk. (2) Frequency of examinations is adjusted on the basis of expected risk for RB1 mutation. (3) Genetic counseling and testing clarify the risk for retinoblastoma in children with a family history of the disease. (4) Examination schedules are stratified on the basis of high-, intermediate-, and low-risk children. (5) Children at high risk for retinoblastoma require more frequent screening, which may preferentially be examinations under anesthesia. CONCLUSIONS: Risk stratification including genetic testing and counseling serves as the basis for screening of children at elevated risk for development of retinoblastoma.


Assuntos
Consenso , Programas de Rastreamento/métodos , Oncologistas , Oftalmologia , Patologistas , Retinoblastoma/epidemiologia , Medição de Risco/métodos , Criança , Feminino , Testes Genéticos , Humanos , Incidência , Lactente , Masculino , Retinoblastoma/diagnóstico , Retinoblastoma/genética , Sociedades Médicas , Estados Unidos/epidemiologia
6.
Pediatr Blood Cancer ; 65(4)2018 04.
Artigo em Inglês | MEDLINE | ID: mdl-29218818

RESUMO

In this retrospective study, we evaluated loss of fundus view as an indication for secondary enucleation and associated histopathologic findings. Of 64 secondarily enucleated eyes, 24 were enucleated for loss of fundus view. Average time from loss of fundus view to enucleation was 4.7 months. Of these eyes, 22 had viable tumor cells on histopathology, but none had high-risk features. Loss of fundus view was a common indication for secondary enucleation after chemoreduction. Given the high prevalence of viable histopathologic tumor cells, enucleation for loss of fundus view should not be significantly delayed to decrease risk of high-risk tumor progression.


Assuntos
Enucleação Ocular , Fundo de Olho , Neoplasias da Retina , Retinoblastoma , Feminino , Humanos , Masculino , Neoplasias da Retina/patologia , Neoplasias da Retina/terapia , Retinoblastoma/patologia , Retinoblastoma/terapia , Fatores de Tempo
7.
Orbit ; 37(6): 438-443, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-29461921

RESUMO

This study aims to identify risk factors associated with complications in retinoblastoma patients following primary and secondary enucleations with porous implant placement. A retrospective case-control study was performed between 2010 and 2015. Data pertaining to subjects' demographics, medical history, clinical, and pathological findings, implant characteristics and complications were collected. The analysis included 103 eyes of 101 patients age 27.8 ± 21.9 months undergoing enucleation for retinoblastoma. Postoperatively, 19/103 (18%) eyes developed exposure, extrusion, or hematoma requiring subsequent surgery. Exposure was the most common postoperative complication (12/19, 63%). Age at enucleation 24 months or younger, Hispanic ethnicity, female gender, and intravenous chemotherapy prior to enucleation were associated with increased odds of implant complications. In contrast, patients who were given intravitreal melphalan (IM), subtenons carboplatin (SC), or external beam radiation therapy (EBRT) did not demonstrate an increased risk of complications. In this cohort of retinoblastoma patients undergoing primary or secondary enucleation with porous implants, implant exposure was the most common postoperative complication. Our findings suggest that female gender, Hispanic ethnicity, age at enucleation 24 months or younger, and intravenous chemotherapy prior to enucleation may increase the risk of complications.


Assuntos
Enucleação Ocular , Implantes Orbitários , Neoplasias da Retina/cirurgia , Retinoblastoma/cirurgia , Antineoplásicos/efeitos adversos , Antineoplásicos/uso terapêutico , Estudos de Casos e Controles , Pré-Escolar , Feminino , Humanos , Lactente , Complicações Intraoperatórias , Masculino , Polietilenos , Porosidade , Complicações Pós-Operatórias , Implantação de Prótese , Radioterapia , Neoplasias da Retina/patologia , Retinoblastoma/patologia , Estudos Retrospectivos , Fatores de Risco
8.
Ophthalmology ; 124(10): 1540-1547, 2017 10.
Artigo em Inglês | MEDLINE | ID: mdl-28528011

RESUMO

PURPOSE: A recent classification scheme for retinoblastoma vitreous seeds has shown promise in predicting treatment response. For the first time, we correlate this clinical classification scheme with its histopathologic features. DESIGN: Retrospective review. PARTICIPANTS: Enucleated eyes received at the pathology department of the Retinoblastoma Center of Houston from 2010 to 2015. METHODS: Macroscopic photographs of the enucleated eyes of patients with retinoblastoma were analyzed to select those with vitreous seeds. Cases with adequate material for clinicopathologic correlation were selected for further analysis, and clinical photographs were reviewed. Routine histopathologic slides were reviewed and compared with the clinical and macroscopic photographs. Seeds were classified as type 1 ("dust"), type 2 ("sphere"), or type 3 ("cloud"). To confirm the presence of macrophages, CD68 immunohistochemical staining was used. Synaptophysin was used to stain retinoblastoma cells. MAIN OUTCOME MEASURES: To correlate clinical vitreous seed type with histopathologic features. RESULTS: A total of 14 eyes with adequate amounts of tumor seeds along with clinical and macroscopic photographic correlation were selected from a total of 138 eyes reviewed. Type 1 seeds consisted of individual viable tumor cells and scattered macrophages. Type 2 seeds consisted of 2 submorphologies: spheres with viable cells throughout and spheres with an outer rim of viable cells but necrotic cells centrally. Type 3 seeds were composed of more than 90% necrotic material admixed with few macrophages and viable cells at their outer rim. Untreated (8/14) and previously treated (6/14) eyes showed similar histopathologic features for each type of seeds. Treated eyes had more type 1 and 3 seeds. CONCLUSIONS: We provide the first histopathologic correlation of the clinical classification scheme for vitreous seeds in retinoblastoma. "Dust" is formed by scattered single cells alternating with macrophages. "Spheres" with translucent centers contain multiple layers of viable tumor cells that shed single cells and may be more clinically aggressive. "Cloud" seeds are mostly composed of necrotic material, explaining their lack of therapeutic response. Pretreated eyes showed tumor seeds morphologically similar to untreated eyes. Knowledge of the underlying histopathology of vitreous seed types is a fundamental component of classification and may aid in understanding clinical response to treatment.


Assuntos
Inoculação de Neoplasia , Neoplasias da Retina/classificação , Neoplasias da Retina/patologia , Retinoblastoma/classificação , Retinoblastoma/patologia , Corpo Vítreo/patologia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Criança , Pré-Escolar , Terapia Combinada , Crioterapia , Enucleação Ocular , Feminino , Humanos , Lactente , Infusões Intra-Arteriais , Injeções Intravenosas , Terapia a Laser , Masculino , Neoplasias da Retina/terapia , Retinoblastoma/terapia , Estudos Retrospectivos
9.
Ophthalmology ; 124(12): 1817-1825, 2017 12.
Artigo em Inglês | MEDLINE | ID: mdl-28655537

RESUMO

OBJECTIVE: Intravitreal chemotherapy has emerged as an important modality for treating vitreous seeding in retinoblastoma. A classification system has been described as predictive of response to intravitreal melphalan (IVM) in patients treated predominantly with primary intra-arterial chemotherapy. The objective of this study is to evaluate the outcomes of retinoblastoma treated with intravenous chemotherapy and IVM as salvage for vitreous seeding, and further to determine whether vitreous seed classification (dust, spheres, cloud) is predictive of the total number and dose of IVM injections required for treatment in this cohort. DESIGN: A nonrandomized retrospective review. PARTICIPANTS: Retinoblastoma patients treated at a single center with intravenous chemotherapy and IVM. METHODS: Retrospective review of patients with vitreous seeding from retinoblastoma treated with intravenous chemotherapy and IVM from 2012 to 2016. MAIN OUTCOME MEASURES: Primary outcome measure was eradication of seeds and globe salvage. Secondary measures included IVM-associated toxicity and complications. RESULTS: Overall, 28 eyes of 25 patients were included, with a total of 110 IVM injections. By seed classification, eyes with dust (n = 15) required a median of 3 injections, spheres (n = 8) required 4 injections, and clouds (n = 5) required 6 injections. Spherical seeds were only seen in recurrent vitreous seeding. Of the 28 treated eyes, 9 were enucleated, 6 for recurrent retinal disease, resulting in an overall globe salvage rate of 68%. The salvage rate secondary to active retinoblastoma was 79%. Dust classification was the most prevalent seeding type of the 9 enucleated eyes. There was 100% regression of vitreous seeds after intravitreal injection and no eye was treated with radiation or enucleated for seeding. Twelve eyes demonstrated grade 3 or greater IVM-associated retinal or anterior segment toxicity post injection. Mean follow-up was 33 months (range, 9-51 months). CONCLUSIONS: IVM is an effective treatment for vitreous seeding after intravenous chemotherapy for retinoblastoma. As with eyes treated with intra-arterial chemotherapy, seed classification is predictive of the total number and dose of IVM injections in eyes treated with intravenous chemotherapy. Eyes with clouds required significantly more injections than eyes with dust or spheres.


Assuntos
Antineoplásicos Alquilantes/administração & dosagem , Melfalan/administração & dosagem , Inoculação de Neoplasia , Neoplasias da Retina/tratamento farmacológico , Retinoblastoma/tratamento farmacológico , Corpo Vítreo/efeitos dos fármacos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carboplatina/uso terapêutico , Criança , Pré-Escolar , Crioterapia , Etoposídeo/uso terapêutico , Feminino , Seguimentos , Humanos , Lactente , Infusões Intravenosas , Injeções Intravítreas , Fotocoagulação a Laser , Masculino , Neoplasias da Retina/patologia , Retinoblastoma/patologia , Estudos Retrospectivos , Terapia de Salvação , Vincristina/uso terapêutico , Corpo Vítreo/patologia
10.
Pediatr Blood Cancer ; 64(12)2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-28646513

RESUMO

BACKGROUND: To evaluate outcomes of Group D retinoblastoma (Rb) eyes during the intravitreal melphalan era. PROCEDURE: Retrospective chart review of patients diagnosed with Group D Rb from 2011 to 2016 was done. Overall, 76 Group D eyes of 68 patients were included; salvage therapy included systemic chemoreduction with vincristine, etoposide, and carboplatin with local consolidation, followed by intravitreal injection of melphalan for recurrent or persistent seeding. External beam radiation was not used as a treatment modality. Primary outcome measurement was globe salvage. RESULTS: Of 76 Group D eyes, 24 were enucleated primarily and 52 were treated with intent to salvage the globe. Systemic chemoreduction salvaged 25 of 52 eyes (48%). Tumor recurrences were diagnosed in 27 eyes (52%); five with massive retinal recurrences underwent enucleation and 22 were treated with intravitreal melphalan injection. Of the 22 injected eyes, 14 (64%) were salvaged and eight required enucleation primarily for retinal recurrences. Success in eradicating vitreous seeds was 100%. The Kaplan-Meier 3-year survival estimate for treated eyes is 76.5% (95% CI: 61.4-86.3). Median follow-up for the group of 76 Group D eyes was 29.5 months (SD 17.9 months). CONCLUSION: During a 6-year period that included the initiation of intravitreal melphalan at our institution, the salvage rate of treated Group D eyes was 75% (39/52 eyes). Intravitreal melphalan was utilized for ocular salvage in 42% (22/52 eyes). Systemic chemoreduction combined with intravitreal melphalan for seeding demonstrated a high overall salvage rate for Group D eyes in this cohort.


Assuntos
Antineoplásicos Alquilantes/administração & dosagem , Melfalan/administração & dosagem , Neoplasias da Retina/tratamento farmacológico , Retinoblastoma/tratamento farmacológico , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Injeções Intravítreas , Masculino , Neoplasias da Retina/classificação , Retinoblastoma/classificação , Estudos Retrospectivos , Terapia de Salvação , Resultado do Tratamento
11.
Pediatr Blood Cancer ; 64(4)2017 04.
Artigo em Inglês | MEDLINE | ID: mdl-28221729

RESUMO

BACKGROUND: The purpose of this study was to evaluate the risk of metastatic disease and orbital recurrence in advanced retinoblastoma treated with systemic chemoreduction versus primary enucleation. METHODS: A retrospective review of patients with Group D/E retinoblastoma was conducted with data collection from 1995 to 2015. Overall, 345 eyes (294 patients) were included (165 Group D and 180 Group E). Primary outcome measures were orbital recurrence and metastatic disease. RESULTS: Of the 345 eyes, 139 were treated with systemic chemoreduction (102 Group D, 37 Group E) and 206 with primary enucleation (63 Group D, 143 Group E). In the chemoreduction group, one patient developed metastasis (0.7%) and one an orbital recurrence (0.7%). In the primary enucleation group, two patients developed metastases (0.9%) and one an orbital recurrence (0.5%). After systemic chemoreduction, 58 of the 139 eyes (30 Group D, 28 Group E) were secondarily enucleated for treatment failure (41.7%). The median time to secondary enucleation from diagnosis was 8.1 months. None of the eyes in the systemic chemoreduction group had high-risk pathologic features. In the primary enucleation group, 56 eyes had high-risk pathology. CONCLUSION: Over a 20-year period, 345 eyes were treated for advanced retinoblastoma at Children's Hospital Los Angeles. Incidence of orbital recurrence and metastatic disease was <1% and did not vary by treatment modality or group classification. None of the eyes enucleated for treatment failure had high-risk pathology, and none of these patients developed metastatic disease. Globe salvage therapy with systemic chemoreduction and subsequent enucleation for poor response does not increase the risk of metastatic disease or orbital recurrence.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Enucleação Ocular/efeitos adversos , Recidiva Local de Neoplasia/patologia , Neoplasias Orbitárias/secundário , Neoplasias da Retina/terapia , Retinoblastoma/terapia , Carboplatina/administração & dosagem , Terapia Combinada , Etoposídeo/administração & dosagem , Feminino , Seguimentos , Humanos , Lactente , Masculino , Recidiva Local de Neoplasia/terapia , Estadiamento de Neoplasias , Neoplasias Orbitárias/terapia , Prognóstico , Estudos Retrospectivos , Fatores de Risco , Terapia de Salvação , Vincristina/administração & dosagem
12.
Graefes Arch Clin Exp Ophthalmol ; 255(12): 2363-2373, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-28971251

RESUMO

PURPOSE: The goal of this project was to demonstrate the feasibility of coupling the indirect ophthalmoscope laser delivery system with the 690 nm wavelength diode laser used to perform photodynamic therapy (PDT) in the treatment of retinoblastoma. METHODS: For phase 1, a total of six pigmented rabbits were treated with the indirect laser delivery system. The laser source was provided by the Lumenis Opal 690 nm laser unit, delivered through a 810 nm Indirect ophthalmoscope headpiece and a hand-held 28-diopter indirect lens (1.0 mm spot size). Four rabbits received intravenous verteporfin at doses of 0.43 or 0.86 mg/kg, and two rabbits did not receive verteporfin (controls). A second phase of the study involved eight rabbits using a retinoblastoma xenograft to determine the effect of indirect PDT on subretinal tumors. RESULTS: For phase 1, a total of 20 laser treatments were performed in the right eyes of six rabbits. Laser power levels ranged between 40 and 150 mW/cm2 and treatment duration ranged between 1 and 3 min. In the four rabbits that received verteporfin, focal retinal scars were noted at 40 mW/cm2 and higher power levels. In the two control rabbits that did not receive verteporfin, thermal burns were confirmed at 75 mW/cm2 and higher power levels. Histopathology showed focal retino-choroidal scars at the site of PDT treatment, without evidence of generalized ocular damage. Using the retinoblastoma xenograft, the indirect PDT system was shown to cause areas of tumor necrosis on histopathology. CONCLUSIONS: The results of this pre-clinical study suggest verteporfin may be activated in the rabbit retina with the indirect delivery system and the 690 nm laser unit (i.e., Indirect PDT). Using verteporfin, treatment effects were observed at 40-50 mW/cm2 in the rabbit retina, while photocoagulation was achieved at 75 mW/cm2 and higher power levels. Fundoscopic and histopathologic examination of treated areas showed circumscribed areas of retinal damage and a lack of generalized ocular toxicity, suggesting that this modality may represent a safe and localized method for treating intraocular retinoblastoma.


Assuntos
Neoplasias Experimentais , Fotoquimioterapia/métodos , Porfirinas/administração & dosagem , Neoplasias da Retina/tratamento farmacológico , Retinoblastoma/tratamento farmacológico , Animais , Estudos de Viabilidade , Injeções Intravenosas , Oftalmoscopia , Fármacos Fotossensibilizantes/administração & dosagem , Coelhos , Neoplasias da Retina/diagnóstico , Retinoblastoma/diagnóstico , Resultado do Tratamento , Verteporfina , Ensaios Antitumorais Modelo de Xenoenxerto
15.
Pediatr Blood Cancer ; 60(4): 688-93, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22997170

RESUMO

BACKGROUND: To evaluate outcomes of Group D eyes of bilateral retinoblastoma patients treated with primary chemoreduction and external beam radiation as salvage. PROCEDURE: Retrospective chart review of patients diagnosed with bilateral retinoblastoma and designated Group D in at least one eye from January 1, 2000 to December 31, 2009. Overall, 62 Group D eyes of 49 patients were included; 13 had bilateral Group D disease. Primary chemoreduction with vincristine, etoposide, and carboplatin with local consolidation was administered, followed by external beam radiation in the form of intensity-modulated radiation therapy (IMRT) as salvage for recurrent tumor. Primary outcome measure was globe salvage. RESULTS: Of 62 Group D eyes, 7 were enucleated primarily; 55 were treated with systemic chemoreduction, and local therapy. Chemoreduction cured 26 of 55 eyes (47%). Recurrences were found in 29 eyes; 5 underwent enucleation and 24 were treated with IMRT at a dose of 24 Gy (2 eyes) or 36 Gy (22 eyes). Of the 24 irradiated eyes, 19 (79%) were salvaged and 5 required enucleation. Final visual acuity ranged from 20/20 to light perception with 10 eyes having 20/80 or better visual acuity. Average follow-up was 54.2 months. CONCLUSION: Kaplan-Meier estimates of eye survival of Group D eyes in bilateral patients at 12 months is 82% (95% confidence interval [CI] 70.1-89.7%); at 60 months eye survival is estimated to be 68% (95% confidence interval [CI] 55.4-82.8%). Systemic treatment for retinoblastoma demonstrated a high rate of globe preservation with acceptable complications and many eyes retaining functional vision.


Assuntos
Neoplasias da Retina/terapia , Retinoblastoma/terapia , Terapia de Salvação/métodos , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Carboplatina/administração & dosagem , Quimiorradioterapia/métodos , Pré-Escolar , Etoposídeo/administração & dosagem , Humanos , Lactente , Radioterapia de Intensidade Modulada , Estudos Retrospectivos , Resultado do Tratamento , Vincristina/administração & dosagem
16.
Ophthalmic Plast Reconstr Surg ; 29(4): 298-303, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23778290

RESUMO

PURPOSE: The present study aimed to examine cost, demographics, and short-term complications associated with orbital fractures and their surgical repair in the inpatient population in the United States over a 7-year period. METHODS: A retrospective cohort study was performed by using the Nationwide Inpatient Sample from 2002 to 2008 and searching the database for discharges classified with International Classification of Disease-9 diagnosis codes of orbital fractures, orbital fracture repair, and associated diagnoses. RESULTS: There was nearly a 50% increase in the annual number of orbital fracture admissions from 2002 to 2008. Demographics for patients with orbital fractures showed that 68% of them were male, most commonly between 18 and 44 years of age, with 69% of cases at large teaching hospitals. Associated ocular diagnoses included eyelid laceration, commotio retinae, and globe rupture. Approximately 25% of patients underwent surgical repair. Surgical patients were younger than nonsurgical patients by approximately 10 years. An overall complication rate of 15.8% was noted, including: pulmonary complications, diplopia, renal impairment, venous thromboembolism, and wound complications. Orbital fracture repair was associated with approximately 1 extra day of hospitalization and $22,000 in-hospital charges. The rates of pulmonary, wound, and ocular motility complications were significantly higher in the patients undergoing orbital fracture repair (p<0.05). CONCLUSIONS: The number of orbital fractures and associated cost has dramatically increased over the past decade. Acute repair of orbital fractures is common and is associated with a longer hospital course, increased cost, and higher rate of complications.


Assuntos
Fraturas Orbitárias/epidemiologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Fixação de Fratura/economia , Custos de Cuidados de Saúde/estatística & dados numéricos , Hospitalização/tendências , Humanos , Incidência , Tempo de Internação/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Fraturas Orbitárias/complicações , Fraturas Orbitárias/economia , Fraturas Orbitárias/cirurgia , Estudos Retrospectivos , Estados Unidos/epidemiologia , Adulto Jovem
17.
J Telemed Telecare ; 29(6): 461-466, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33470165

RESUMO

INTRODUCTION: The purpose of this study was to assess the validity of using video glasses as part of an asynchronous telemedicine screening protocol for paediatric blepharoptosis. METHODS: A physician assistant wearing Pivothead SMART Series glasses recorded videos of paediatric patients referred for blepharoptosis in primary, down and upgaze while holding a ruler next to the eyes. An oculoplastic surgeon viewed the stored videos and recorded margin-reflex distance 1 and levator function. Using these measurements, the surgeon determined whether surgical intervention was recommended and, if so, which procedure was recommended. The surgeon recorded the same parameters for each patient based on an in-person examination performed later that day. Videos were reviewed eight months later and the same parameters were recorded. RESULTS: Twenty-nine children (n = 58 eyes) were enrolled. Margin-reflex distance 1 and levator function measurements based on same-day video review agreed with in-person examination 94.8% (intraclass correlation coefficient = 0.82) and 98.3% (intraclass correlation coefficient = 0.96) of the time, respectively. Margin-reflex distance 1 and levator function measurements based on later video review agreed with in-person examination 93.1% (intraclass correlation coefficient = 0.85) and 94.8% (intraclass correlation coefficient = 0.93) of the time, respectively. Agreement in identifying surgical candidates was almost perfect (= = 0.93) for same-day video review and substantial (= = 0.73) for later video review. Sensitivity of identifying surgical patients was 100% for both same-day video review and later video review; though specificity was lower at 94.1% for same-day video review and 76.5% for later video review. DISCUSSION: Asynchronous telemedicine encounters employing video glasses are a useful screening modality for identifying surgical paediatric blepharoptosis patients.


Assuntos
Blefaroplastia , Blefaroptose , Telemedicina , Humanos , Criança , Blefaroptose/diagnóstico , Blefaroptose/cirurgia , Pálpebras/cirurgia , Blefaroplastia/métodos , Estudos de Viabilidade , Resultado do Tratamento
18.
Br J Ophthalmol ; 107(12): 1818-1822, 2023 11 22.
Artigo em Inglês | MEDLINE | ID: mdl-36113955

RESUMO

BACKGROUND: Rates of care abandonment for retinoblastoma (RB) demonstrate significant geographical variation; however, other variables that place a patient at risk of abandoning care remain unclear. This study aims to identify the risk factors for care abandonment across a multinational set of patients. METHODS: A prospective, observational study of 692 patients from 11 RB centres in 10 countries was conducted from 1 January 2019 to 31 December 2019. Multivariate logistic regression was used to identify risk factors associated with higher rates of care abandonment. RESULTS: Logistic regression showed a higher risk of abandoning care based on country (high-risk countries include Bangladesh (OR=18.1), Pakistan (OR=45.5) and Peru (OR=9.23), p<0.001), female sex (OR=2.39, p=0.013) and advanced clinical stage (OR=4.22, p<0.001). Enucleation as primary treatment was not associated with a higher risk of care abandonment (OR=0.59, p=0.206). CONCLUSION: Country, advanced disease and female sex were all associated with higher rates of abandonment. In this analysis, enucleation as the primary treatment was not associated with abandonment. Further research investigating cultural barriers can enable the building of targeted retention strategies unique to each country.


Assuntos
Neoplasias da Retina , Retinoblastoma , Humanos , Feminino , Retinoblastoma/epidemiologia , Retinoblastoma/terapia , Estudos Prospectivos , Recusa do Paciente ao Tratamento , Estudos Retrospectivos , Fatores de Risco , Neoplasias da Retina/epidemiologia , Neoplasias da Retina/terapia
20.
J Pediatr Hematol Oncol Nurs ; 39(6): 342-357, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35674414

RESUMO

Background: Retinoblastoma (RB) is a malignant intraocular tumor diagnosed in early childhood that requires extensive medical and surgical treatment at a young age. Health-related quality of life (HRQOL) is thought to be diminished due to visual impairment, facial deformities, and fear of recurrence or secondary cancer. However, few studies have identified variables associated with HRQOL among those with RB. Purpose: To compare HRQOL of adolescents and young adults (AYAs) with RB to matched controls and to identify predictors of HRQOL in RB survivors. Methods: Using a cross-sectional design, 198 AYAs (101 RBs and 97 controls) completed HRQOL (PROMIS®-29 profile) and psychosocial questionnaires (Rosenberg self-esteem scale, multidimensional scale of perceived social support, and Hollingshead index for socioeconomic status). Clinical variables (age at diagnosis, visual acuity, laterality, heredity, treatment regime, and anesthesia exposure) were extracted from the medical record. Correlates of HRQOL were estimated using linear regression models. Results: RB survivors reported similar HRQOL compared to controls. Physical function (p < .001), social support (p = .013), and self-esteem (p = .028) were lower in the RB group compared to controls. Visual acuity and self-esteem accounted for 52% of the variance in PROMIS physical health summary scores and self-esteem accounted for 38% of the variance in mental health summary scores. Conclusion: Despite deficits in physical function and self-esteem HRQOL in RB survivors was comparable to healthy counterparts. However, the majority of RB survivors in this study had normal visual acuity. Clinicians should explore ways to enhance self-esteem in RB survivors.


Assuntos
Neoplasias da Retina , Retinoblastoma , Adolescente , Adulto Jovem , Pré-Escolar , Humanos , Qualidade de Vida/psicologia , Estudos Transversais , Sobreviventes/psicologia
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