Prediction model of free flaps in microkeratome-assisted LASIK.

<h4>Purpose</h4>To identify mechanical factors, as well as patients' biometric and surgeons' experience factors that correlate with the FF incidence in microkeratome (MK)-assisted LASIK and to construct a predictive model based on these parameters.<h4>Methods</h4>55...

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Autores principales:	Toam Katz, Vasyl Druckiv, Sebastian Siebelmann, Andreas Frings, Christos Skevas
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/8656846eef8b44f2a0046bb51f00cb72
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spelling	oai:doaj.org-article:8656846eef8b44f2a0046bb51f00cb722021-12-02T20:08:45ZPrediction model of free flaps in microkeratome-assisted LASIK.1932-620310.1371/journal.pone.0255525https://doaj.org/article/8656846eef8b44f2a0046bb51f00cb722021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0255525https://doaj.org/toc/1932-6203<h4>Purpose</h4>To identify mechanical factors, as well as patients' biometric and surgeons' experience factors that correlate with the FF incidence in microkeratome (MK)-assisted LASIK and to construct a predictive model based on these parameters.<h4>Methods</h4>55,700 consecutive LASIK treatments of 28,506 patients between January 2017 and April 2020 done by 50 surgeons in 10 centers, all with Sub Bowman Keratome (SBK) and 90μ head (OUP) were analyzed retrospectively for the incidence of FF and their correlation to mean keratometry, central corneal thickness, MK ring height and stop, as well as surgeons' experience. A prediction model was built and tested for sensitivity and specificity.<h4>Results</h4>The incidence of FF using the SBK MK was 0.276%. Risk factors were low central corneal thickness, very flat (-1) or very thick (+2) ring height, and higher stop values (p<0.001). Mean keratometry and low surgeon experience were not correlated to FF incidence. A prediction model with a cut-off FF risk of 0.274%, a 76% specificity, and a 73% sensitivity was applied.<h4>Conclusions</h4>Free flaps are rarely seen in modern MK LASIK. However, the incidence of this complication using the SBK MK increases using higher stop values, very thick and very thin MK rings, and in eyes with thin corneas.Toam KatzVasyl DruckivSebastian SiebelmannAndreas FringsChristos SkevasPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 9, p e0255525 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Toam Katz Vasyl Druckiv Sebastian Siebelmann Andreas Frings Christos Skevas Prediction model of free flaps in microkeratome-assisted LASIK.
description	<h4>Purpose</h4>To identify mechanical factors, as well as patients' biometric and surgeons' experience factors that correlate with the FF incidence in microkeratome (MK)-assisted LASIK and to construct a predictive model based on these parameters.<h4>Methods</h4>55,700 consecutive LASIK treatments of 28,506 patients between January 2017 and April 2020 done by 50 surgeons in 10 centers, all with Sub Bowman Keratome (SBK) and 90μ head (OUP) were analyzed retrospectively for the incidence of FF and their correlation to mean keratometry, central corneal thickness, MK ring height and stop, as well as surgeons' experience. A prediction model was built and tested for sensitivity and specificity.<h4>Results</h4>The incidence of FF using the SBK MK was 0.276%. Risk factors were low central corneal thickness, very flat (-1) or very thick (+2) ring height, and higher stop values (p<0.001). Mean keratometry and low surgeon experience were not correlated to FF incidence. A prediction model with a cut-off FF risk of 0.274%, a 76% specificity, and a 73% sensitivity was applied.<h4>Conclusions</h4>Free flaps are rarely seen in modern MK LASIK. However, the incidence of this complication using the SBK MK increases using higher stop values, very thick and very thin MK rings, and in eyes with thin corneas.
format	article
author	Toam Katz Vasyl Druckiv Sebastian Siebelmann Andreas Frings Christos Skevas
author_facet	Toam Katz Vasyl Druckiv Sebastian Siebelmann Andreas Frings Christos Skevas
author_sort	Toam Katz
title	Prediction model of free flaps in microkeratome-assisted LASIK.
title_short	Prediction model of free flaps in microkeratome-assisted LASIK.
title_full	Prediction model of free flaps in microkeratome-assisted LASIK.
title_fullStr	Prediction model of free flaps in microkeratome-assisted LASIK.
title_full_unstemmed	Prediction model of free flaps in microkeratome-assisted LASIK.
title_sort	prediction model of free flaps in microkeratome-assisted lasik.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/8656846eef8b44f2a0046bb51f00cb72
work_keys_str_mv	AT toamkatz predictionmodeloffreeflapsinmicrokeratomeassistedlasik AT vasyldruckiv predictionmodeloffreeflapsinmicrokeratomeassistedlasik AT sebastiansiebelmann predictionmodeloffreeflapsinmicrokeratomeassistedlasik AT andreasfrings predictionmodeloffreeflapsinmicrokeratomeassistedlasik AT christosskevas predictionmodeloffreeflapsinmicrokeratomeassistedlasik
_version_	1718375135047581696

Prediction model of free flaps in microkeratome-assisted LASIK.

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