Prospective randomized comparative study between venturi and peristaltic pumps in WhiteStar Signature (R) phacoemulsification machine

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Citações na Scopus
6
Tipo de produção
article
Data de publicação
2019
Título da Revista
ISSN da Revista
Título do Volume
Editora
DOVE MEDICAL PRESS LTD
Autores
MEDEIROS, Andre Lins de
ROLIM, Andre Gustavo de Araujo
MOTTA, Antonio Francisco Pimenta
KNIGGENDORF, Danilo Varela
QUEIROZ, Rodrigo Lafeta Franco de
CHAVES, Mario Augusto Pereira Dias
CARRICONDO, Pedro Carlos
NAKANO, Celso Takashi
NOSE, Walton
Citação
CLINICAL OPHTHALMOLOGY, v.13, p.49-52, 2019
Projetos de Pesquisa
Unidades Organizacionais
Fascículo
Resumo
Purpose: To compare intraoperative parameters between venturi and peristaltic pump in WhiteStar Signature (R) phacoemulsification machine using the bevel-down technique. Setting: Hospital Oftalmologico de Brasilia, Brasilia, Federal District, Brazil. Design: Prospective, comparative, patient-masked study. Methods: Three hundred eyes were randomly assigned to have a phacoemulsification procedure with WhiteStar Signature (R) using either peristaltic (n=150 eyes) or venturi (n=150 eyes) pumps by a single surgeon (WTH). Elliptical ultrasound setting and prefracture (prechop or preslice) techniques were used in all cases. Cataract nucleus density was graded using lens opacities classification system III and Pentacam Nucleus Staging classification. Clinical measurements included preoperative- and postoperative-corrected visual acuity, preoperative and 2-month postoperative endothelial cell counts, and preoperative and 1-day postoperative central corneal thickness. Intraoperative measurements at the end of the case were phaco time, fluid used, total case time, and Efx energy. Results: There were no statistically significant differences between groups regarding age, cataract density, and phaco time (P>0.05). Intraoperatively, we observed significantly less ultrasound energy (P=0.011), case time (P=0.0001), and balanced saline solution (P=0.001) usage in the venturi group. Clinically, both fluidic settings can provide similar clinical outcomes and visual recovery, regarding corrected distance visual acuity, endothelial cell count, and central corneal thickness. Conclusion: Our data show that to minimize fluid use, case time, and energy with the prefracture technique, the venturi pump was the most efficient system and was statistically superior to peristaltic pump.
Palavras-chave
venturi, peristaltic, phacoemulsification, cataract surgery, vacuum efficiency
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