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Title of Journal: Arch Ophthalmol

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Abbravation: Archives of Ophthalmology

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American Medical Association

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The Rate of Sulfur Hexafluoride Escape From a Plastic Syringe

Authors: Mark S. Humayun, Julia Haller Yeo, Walter S. Koski, Ronald G. Michels,

Publish Date: 1989/06/01
Volume: 107, Issue:6, Pages: 853-854
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• Sulfur hexafluoride (SF6) gas is widely used for internal tamponade during retinal reattachment surgery and is commonly injected into the eye from a 10-mL plastic syringe. The rate of diffusion of SF6 out of a plastic syringe has not been studied. We measured the percentage of SF6 gas in a 10-mL plastic syringe by gas chromatography, confirmed by infrared spectrometry. Measurements were obtained immediately after aspiration, and at 30 s and 10, 15, 60, 90, and 120 minutes, and 18 hours. A marked decrease in SF6 concentration, from 97% at 30 s to 76% at 60 minutes and 2% at 18 hours, was noted. The results were highly reproducible. Sulfur hexafluoride gas should be injected into the patient's eye as soon as possible after aspiration from the tank to ensure accurate concentrations.



citation_title=Mechanics of intraocular gas; citation_author=Parver LM, Lincoff H;Invest Ophthalmol Vis Sci; citation_year=1978; citation_volume=17; citation_pages=77-80;

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