Estudo clínico observacional da facoemulsificação com ultra-som torsional na microincisão coaxial de 2,2 mm
AUTOR(ES)
André Gustavo Rolim de Araújo
DATA DE PUBLICAÇÃO
2008
RESUMO
Objective: to clinically evaluate the performance of the phacoemulsification cataract surgery using the torsional technology Infiniti Vision SystemTM - OZilTM U/S Torsional with 2,2 mm clear corneal microcoaxial incision. Methods: observational clinical study comprising 96 eyes with nuclear or cortico-nuclear cataract grade 2 according to Lens Opacities Classification System III submitted to phacoemulsification cataract surgery using the torsional technology Infiniti Vision SystemTM - OZilTM U/S Torsional with 2,2 mm clear corneal microcoaxial incision at Hospital Oftalmológico de Brasília. Intra-operative variables of used volume of balanced salt solution, surgical time and accumulated dissipated ultrasound energy were analysed. Pre and one-day and one-month post-operative variables of central corneal thickness and corneal endothelial density were also analysed. Results: the mean volume of used balanced salt solution, in ml, was 97,3 with standard deviation of 9,62. The mean surgical time, in minutes, was 5,08 with standard deviation of 0,53. The mean accumulated dissipated ultrasound energy was 3,23 with standard deviation of 0,39. The pre-operative, one-day and one-month post-operative mean values, in μm, of central corneal thickness were, respectively, 538,98, 545,34 and 541,78 (p value 0,05). The pre-operative, one-day and one-month post-operative mean values of corneal endothelial density, in cells per mm2, were, respectively, 2321, 2281, 2230 (p value 0,05). The percentage decrease in corneal endothelial density at first post-operative day was 1,7% and at first post-operative month was 4%. Conclusion: the phacoemulsification technique with the torsional technology Infiniti Vision SystemTM - OZil TM U/S Torsional with 2,2 mm clear corneal microcoaxial incision seems not to damage or affect negatively the corneal endothelium as suggested by the variables analysed.
ASSUNTO(S)
facoemulsificação catarata phacoemulsification microcoaxial torsional ultrasound microcoaxial ultra-som torsional ciencias da saude cataract
