Avaliação subjetiva da ponteira de dupla-porta para vitrectomia posterior

• Autor(a) principal: Pires, Guilherme Machado Estevao [UNIFESP]
• Data de Publicação: 2021
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional da UNIFESP
• Texto Completo: https://sucupira.capes.gov.br/sucupira/public/consultas/coleta/trabalhoConclusao/viewTrabalhoConclusao.jsf?popup=true&id_trabalho=11025788; https://repositorio.unifesp.br/handle/11600/68365
• topic: Vitrectomy/Instrumentation; Vitreoretinal Surgery; Equipment Design; Vitrectomia/Instrumentação; Cirurgia Vitreorretiniana; Desenho De Equipamento

Objective: To subjectively evaluate, through a questionnaire, the efficacy, and safety of the double-port posterior vitrectomy tip for removal of the central vitreous. Methods: The standard 23-gauge single-port tips of the Constellation Vision System and Stellaris PC were used for customization of the double-port tip. The second port, located on the outer cylinder at 180 degrees to the original port, was made by highprecision laser cutting equipment (Nd-Yag). The subjective evaluation of the efficacy and safety of the double-port tip for the removal (cutting and aspiration) of the central vitreous in cases of vitreous opacity and vitreous hemorrhage was performed by applying a questionnaire to six posterior segment surgeons. Results: 66.6% (N=4) of the surgeons considered the double-port tip faster than the standard tip to carry out the central posterior vitrectomy. All surgeons (100%) perceived that the double-port tip simultaneously performs the cutting and aspiration actions on both ports (original and custom). Five surgeons (83.3%) considered the use of the double-port tip to remove the central vitreous to be safe and not prone to intraoperative complications. All surgeons (100%) believed that the double-port tip may be an option over the standard single-port tip in cases of vitreous hemorrhage and vitreous opacities and three (50%) surgeon-assessors considered it possible to use the double-port tip also in cases of retinal detachment. Conclusion: According to the subjective evaluation performed, the double-ended tip may be an option of faster and safer surgical instruments for the removal of the central vitreous when used in posterior vitrectomy surgeries.