Saturation effect on the distribution of rill detachment rate

2021 ◽  
Author(s):  
Yuhan Huang ◽  
Wei Wang ◽  
Tingwu Lei ◽  
Fahu Li ◽  
Juan Li
Keyword(s):  
Saturation Effect ◽  
Detachment Rate

Rebubbling rate in preloaded versus surgeon prepared DSAEK

2021 ◽  
pp. 112067212110143
Author(s):  
Luca Pagano ◽  
Kunal A Gadhvi ◽  
Giulia Coco ◽  
Matthew Fenech ◽  
Mitchell Titley ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Statistical Difference ◽  
Preparation Method ◽  
Eye Bank ◽  
Eye Banks ◽  
Corrected Visual Acuity ◽  
Detachment Rate ◽  
Pull Through ◽  
Graft Diameter ◽  
Best Corrected Visual Acuity

Purpose: To compare the clinical outcomes of eye bank preloaded Descemet stripping automated endothelial keratoplasty (DSAEK) grafts and surgeon prepared. Methods: In this retrospective study, the data were obtained from two groups (a) surgeon cut DSAEK where tissue was prepared by the surgeon immediately before surgery, and (b) preloaded DSAEK tissue shipped to the surgeon after preparation by the eye bank. Standard DSAEK preparations using Moria microkeratome with single pass method were performed. For the tissues prepared by the eye banks, they were preloaded in an iGlide device and shipped in transport media. Standard DSAEK surgery using bimanual pull-through technique was performed for all the grafts. Air was used as a tamponade. Main outcome measures included best corrected visual acuity (BCVA) and rebubbling rate. Result: Out of 107 eyes of 101 patients that underwent DSAEK surgery, 33 tissues were prepared by the surgeon (sc-DSAEK), while 74 were prepared by the eye bank (pl-DSAEK). sc-DSAEK showed a rebubbling rate of 9.1%, compared to the 16.2% for the preloaded DSAEK ( p = 0.11). There was no statistical difference in postoperative BCVA between the two groups. Logistic regression analysis showed no association between detachment rate and cataract surgery, graft preparation method, graft diameter and reason for graft. Conclusion: Preloaded grafts have similar rebubbling rate and visual acuity achieved compared with surgeon prepared grafts.

scholarly journals Kinetics of Biofilm Detachment

1992 ◽  
Vol 26 (9-11) ◽  
pp. 1995-1998 ◽  
Author(s):  
B. M. Peyton ◽  
W. G. Characklis
Keyword(s):  
Steady State ◽  
Utilization Rate ◽  
Carbon Utilization ◽  
Biofilm Thickness ◽  
First Order ◽  
Detachment Rate ◽  
Biofilm Detachment ◽  
Biofilm Modeling ◽  
Kinetics Of ◽  
Sensitive Variable

In predictive biofilm modeling, the detachment rate coefficient may be the most sensitive variable affecting both the predicted rate and the extent of biofilm accumulation. At steady state the detachment rate must be equal to the net growth rate in the biofilm. In systems where organic carbon is growth-limiting, the substrate carbon utilization rate determines the net biomass production rate and, therefore, the steady state biomass detachment rate. Detachment rates, first order with biofilm thickness, fit the experimental data well, but are not predictive since the coefficients must be determined experimentally.

Postoperative supine position after primary Descemet-stripping automated endothelial keratoplasty reduces graft detachment rate

2021 ◽  
Author(s):  
Margarita Safir ◽  
Biana Dubinsky-Pertzov ◽  
Alon Peled ◽  
Assaf Rozenberg ◽  
David Zadok ◽  
...  
Keyword(s):  
Supine Position ◽  
Endothelial Keratoplasty ◽  
Detachment Rate
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