Use of 25% sulfur hexafluoride gas mixture may minimize short-term postoperative hypotony in sutureless 25-gauge pars plana vitrectomy surgery

Yoreh Barak, James W Heroman, Shlomit SchaalDepartment of Ophthalmology and Visual Sciences, University of Louisville, Louisville, KY, USABackground: The purpose of this study was to compare postoperative intraocular pressures and percentage of vitreous cavity gas fill one day following 25-gauge par...

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Autores principales:	Barak Y, Heroman JW, Schaal S
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2013
Materias:	Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/96f996ea6d6040dbad9ba7b437d5e0d4
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spelling	oai:doaj.org-article:96f996ea6d6040dbad9ba7b437d5e0d42021-12-02T02:29:55ZUse of 25% sulfur hexafluoride gas mixture may minimize short-term postoperative hypotony in sutureless 25-gauge pars plana vitrectomy surgery1177-54671177-5483https://doaj.org/article/96f996ea6d6040dbad9ba7b437d5e0d42013-02-01T00:00:00Zhttp://www.dovepress.com/use-of-25-sulfur-hexafluoride-gas-mixture-may-minimize-short-term-post-a12301https://doaj.org/toc/1177-5467https://doaj.org/toc/1177-5483Yoreh Barak, James W Heroman, Shlomit SchaalDepartment of Ophthalmology and Visual Sciences, University of Louisville, Louisville, KY, USABackground: The purpose of this study was to compare postoperative intraocular pressures and percentage of vitreous cavity gas fill one day following 25-gauge pars plana vitrectomy with 20% versus 25% sulfur hexafluoride (SF6) gas fill.Methods: This was a retrospective review of 187 consecutive cases of 25-gauge pars plana vitrectomy with complete fluid/gas exchange. The main outcome measures included percentage of gas fill of the vitreous cavity and intraocular pressure on postoperative day one.Results: Fifty eyes underwent 25-gauge pars plana vitrectomy with 20% SF6 tamponade and 137 with 25% SF6 tamponade. On postoperative day one in the 20% SF6 group, there were five (10%) patients with hypotony (intraocular pressure &le; 5 mmHg) and none in the 25% SF6 group. Mean intraocular pressure was 9 &plusmn; 2.5 mmHg and 16.8 &plusmn; 2.4 mmHg for the 20% SF6 and 25% SF6 groups, respectively (P &lt; 0.01). None of the patients had postoperative intraocular pressure &gt; 23 mmHg. Mean vitreous cavity gas fill on postoperative day one was 70.7% &plusmn; 10% in the 20% SF6 group and 89.5% &plusmn; 2.2% in the 25% SF6 group (P &lt; 0.01). There was no difference in the number of phakic patients needing cataract surgery between the groups.Conclusion: A slightly expansile concentration of 25% SF6 gas can be safely and beneficially used in 25-gauge vitrectomy surgery to increase the amount of gas fill in the vitreous cavity and prevent postoperative hypotony.Keywords: hypotony, 25-gauge pars plana vitrectomy, sulfur hexafluorideBarak YHeroman JWSchaal SDove Medical PressarticleOphthalmologyRE1-994ENClinical Ophthalmology, Vol 2013, Iss default, Pp 423-426 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Ophthalmology RE1-994
spellingShingle	Ophthalmology RE1-994 Barak Y Heroman JW Schaal S Use of 25% sulfur hexafluoride gas mixture may minimize short-term postoperative hypotony in sutureless 25-gauge pars plana vitrectomy surgery
description	Yoreh Barak, James W Heroman, Shlomit SchaalDepartment of Ophthalmology and Visual Sciences, University of Louisville, Louisville, KY, USABackground: The purpose of this study was to compare postoperative intraocular pressures and percentage of vitreous cavity gas fill one day following 25-gauge pars plana vitrectomy with 20% versus 25% sulfur hexafluoride (SF6) gas fill.Methods: This was a retrospective review of 187 consecutive cases of 25-gauge pars plana vitrectomy with complete fluid/gas exchange. The main outcome measures included percentage of gas fill of the vitreous cavity and intraocular pressure on postoperative day one.Results: Fifty eyes underwent 25-gauge pars plana vitrectomy with 20% SF6 tamponade and 137 with 25% SF6 tamponade. On postoperative day one in the 20% SF6 group, there were five (10%) patients with hypotony (intraocular pressure &le; 5 mmHg) and none in the 25% SF6 group. Mean intraocular pressure was 9 &plusmn; 2.5 mmHg and 16.8 &plusmn; 2.4 mmHg for the 20% SF6 and 25% SF6 groups, respectively (P &lt; 0.01). None of the patients had postoperative intraocular pressure &gt; 23 mmHg. Mean vitreous cavity gas fill on postoperative day one was 70.7% &plusmn; 10% in the 20% SF6 group and 89.5% &plusmn; 2.2% in the 25% SF6 group (P &lt; 0.01). There was no difference in the number of phakic patients needing cataract surgery between the groups.Conclusion: A slightly expansile concentration of 25% SF6 gas can be safely and beneficially used in 25-gauge vitrectomy surgery to increase the amount of gas fill in the vitreous cavity and prevent postoperative hypotony.Keywords: hypotony, 25-gauge pars plana vitrectomy, sulfur hexafluoride
format	article
author	Barak Y Heroman JW Schaal S
author_facet	Barak Y Heroman JW Schaal S
author_sort	Barak Y
title	Use of 25% sulfur hexafluoride gas mixture may minimize short-term postoperative hypotony in sutureless 25-gauge pars plana vitrectomy surgery
title_short	Use of 25% sulfur hexafluoride gas mixture may minimize short-term postoperative hypotony in sutureless 25-gauge pars plana vitrectomy surgery
title_full	Use of 25% sulfur hexafluoride gas mixture may minimize short-term postoperative hypotony in sutureless 25-gauge pars plana vitrectomy surgery
title_fullStr	Use of 25% sulfur hexafluoride gas mixture may minimize short-term postoperative hypotony in sutureless 25-gauge pars plana vitrectomy surgery
title_full_unstemmed	Use of 25% sulfur hexafluoride gas mixture may minimize short-term postoperative hypotony in sutureless 25-gauge pars plana vitrectomy surgery
title_sort	use of 25% sulfur hexafluoride gas mixture may minimize short-term postoperative hypotony in sutureless 25-gauge pars plana vitrectomy surgery
publisher	Dove Medical Press
publishDate	2013
url	https://doaj.org/article/96f996ea6d6040dbad9ba7b437d5e0d4
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Use of 25% sulfur hexafluoride gas mixture may minimize short-term postoperative hypotony in sutureless 25-gauge pars plana vitrectomy surgery

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