RESUMO
OBJETIVOS: Avaliar a eficácia e a segurança da transição da cirurgia de facoemulsificação sob anestesia peribulbar para tópica realizadas por residentes do terceiro ano. MÉTODOS: Os prontuários dos pacientes submetidos à facoemulsificação no período de agosto de 2004 a janeiro de 2005 foram analisados. Os pacientes foram operados sob anestesia tópica (grupo I) e peribulbar (grupo II).Foram obtidos dados referentes a sexo, idade, acuidade visual com estenopeico e complicações. Foram excluídos pacientes com baixa acuidade visual não devido à catarata. RESULTADOS: Cento e cinqüenta e um (151) olhos foram avaliados; 70 olhos no grupo I e 81 no grupo II. A acuidade visual pósoperatória com estenopeico aos seis meses foi superior a logMAR +0,30 em 80,7 por cento e a média foi de log MAR +0.10 em ambos os grupos. As análises das complicações intraoperatórias entre os grupos I e II mostrou diferença estatisticamente significante (p=0,039). CONCLUSÃO: Nossos dados sugerem que a transição para cirurgia de facoemulsificação sob anestesia tópica realizadas por residentes de terceiro ano é eficaz e segura.
PURPOSE: To evaluate the outcome and safety of the transition from phacoemulsification performed by third year residents using peribulbar anesthesia to topical anesthesia. METHODS: Cases performed by third year residents from august 2004 to february 2005 were analyzed. Patients were operated under peribulbar (group I) and topical anesthesia (group II). Variables analyzed included patients age, sex, visual acuity under pinhole and complications. Patients with low visual acuity other than cataract were excluded from analysis. RESULTS: A total of 151 eyes were analyzed; 70 eyes in group I and 81 in group II. The visual acuity with pinhole as better than logMAR +0,30 in 80,7 percent and the average visual acuity after six months was log MAR +0.10 for both groups.The complication rate diference between both groups was statistically significant (p=0,039). CONCLUSION: Our data suggests that transition to topical anesthesia performed by third year residents is safe with similar outcomes.
RESUMO
The aim of this study was to propose a profitable destination for an industrial sludge that can cover the wastewater treatment costs of small waste generators. Optimized stabilization/solidification technology was used to treat hazardous waste from an electroplating industry that is currently released untreated to the environment. The stabilized/solidified (S/S) waste product was used as a raw material to build concrete blocks, to be sold as pavement blocks or used in roadbeds and/or parking lots. The quality of the blocks containing a mixture of cement, lime, clay and waste was evaluated by means of leaching and solubility tests according to the current Brazilian waste regulations. Results showed very low metal leachability and solubility of the block constituents, indicating a low environmental impact. Concerning economic benefits from the S/S process and reuse of the resultant product, the cost of untreated heavy metal-containing sludge disposal to landfill is usually on the order of US$ 150-200 per tonne of waste, while 1tonne of concrete roadbed blocks (with 25% of S/S waste constitution) has a value of around US$ 100. The results of this work showed that the cement, clay and lime-based process of stabilization/solidification of hazardous waste sludge is sufficiently effective and economically viable to stimulate the treatment of wastewater from small industrial waste generators.