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Effect of IOP based infusion system with and without balanced phaco tip on cumulative dissipated energy and estimated fluid usage in comparison to gravity fed infusion in torsional phacoemulsification

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Eye and Vision 2017年第1期4卷 127-136页

作者： Praveen K.Malik Taru Dewan arun kr patidar Ekta Sain Dr Ram Manohar Lohia Hospital New DelhiIndia

Background:To evaluate the effect of three different combinations of tip designs and infusion systems in torsional phacoemulsification(INFINITI and CENTURION)in patients with *** to the manufacturer,two unique improvements in the Centurion are:active fluid dynamic management system and use of an intrepid balanced *** study specifically aimed to evaluate the beneficial effects,if any,of change in tip design and infusion system individually and in combination on both per-operative parameters as well as endothelial health over 6 ***:One hundred and twenty six consenting patients of grade 4.0-6.9 senile cataract were randomized into three groups for phacoemulsification:Group A(n=42):Gravity fed infusion system and 45° Kelman miniflared ABS phaco tip;Group B(n=42):intraocular pressure(IOP)based infusion system and 45° Kelman miniflared ABS phaco tip;Group C(n=42):IOP based infusion system and 45° Intrepid balanced phaco *** cumulative dissipated energy(CDE),estimated fluid usage(EFU)and total aspiration time(TAT)were compared *** endothelial parameters were followed up postoperatively for six ***:The three arms were matched for age(p=0.525),gender(p=0.96)and grade of cataract(p=0.177).Group C was associated with significant reductions in CDE(p=0.001),EFU(p<0.0005)as well as TAT(p=0.001)in comparison to the other *** three groups had comparable baseline endothelial cell density(p=0.876)and central corneal thickness(p=0.561).On post-operative evaluation,although all groups were comparable till 3 months,by 6 months,the percentage losses in endothelial cell density were significantly lower in group C as compared to the other ***:Use of an IOP based phacoemulsification system in association with use of the Intrepid balanced tip reduces the CDE,EFU and TAT in comparison to a gravity fed system with a mini flared tip or IOP based system with a mini flared tip while also providing better endothelia

关键词： Active fluidics CENTURION active Centurion IOP based infusion Torsional Phacoemulsification Intrepid balanced tip Kelman miniflared tip Gravity based infusion Cumulative dissipated energy

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