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First Author: M.Ata? TURKEY
Co Author(s): S. Demircan A. Seyhan Karatepe A. Gülhan G. Zarars?z
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To compare and evaluate the phacoemulsification parameters and postoperative endothelial cell changes of two different phacoemulsification machines that use different modes and to assess the relationship between postoperative endothelial cell loss and phaco parameters or the other factors in the two groups.
Kayseri Traning and Research Hospital, Turkey
This prospective observational study comprised consecutive eligible cataract patients, who had phacoemulsification by the same surgeon using a Whitestar Signature Elips-FX (transversal - group-1) or Infiniti-Ozil-IP (torsional group 2) machine.
The study included 86 patients. Baseline characteristics in the groups were similar. The mean nuclear sclerosis grade was 2.7 in the first group and 2.61 in the second group. Both of two groups are the similar phacoemulsification needle time (Group 1: 60.63 ±36 seconds; Group 2: 55.98 ±30 seconds p=0.789) The percentage of postoperative endothelial cell loss ranged from 6.32 % to 2.71 % with a median of 8.99 % in group-1; from 7.96 % to 14.52 % with a median of 8.94 % in group-2; however there was no stastistically differences between the to groups (p=0.407). Likewise; hexagonality (p=0.794) and coefficient of variation (CV; p=0.142) didnt differ sinificantly between groups before and after 30 days surgery. The significant positive correlation was found between the endothelial cell loss and nuclear scleosis grade (group 1: p<0.001; group 1: p<0.001) and between endothelial cell loss and average phacoemulsification power (group 1: p=0.007; group 2: p=0.008).
Both of two machines were efficient with similar endothelial cell loss. This endothelial cell loss was related to the increased nuclear sclerosis grade and increased phacoemulsification power.