Definity contrast agent is an engineered microsphere that consists of an outer trilipid shell that encapsulates a biologically inert, high molecular weight gas called octafluoropropane
. As they have the same intravascular rheology as red blood cells , they can act as blood flow and blood volume "tracers." By enhancing the blood pool signal, they have multiple well accepted clinical indications [38-41].
(33) The microsphere delivery system is a thin, heat-denatured shell that contains encapsulated air, octafluoropropane
(OFP) or other gases.
Other vitreoretinal surgical adjuncts used in our study were RS-OIL ECS Silicone oil 1.000 cS, GOT Multi SF6 - pure sulphur hexafluoride, GOT Multi C3F8 - pure octafluoropropane
gas and HPF10 high purity perfluorodecalin (AL.CHI.MI.A.
The following keywords were used in various combinations: retinal detachment, vitrectomy, intraocular gas, sulfur hexafluoride, S[F.sub.6], perfluoromethane, C[F.sub.4], perfluoroethane, hexafluoroethane, [C.sub.3][F.sub.6], perfluoropropane, octafluoropropane
, [C.sub.3][F.sub.8], and complications.
Other adjuncts used in these surgeries included GOT Multi SF6 - pure sulphur hexafluoride, GOT Multi C3F8 - pure octafluoropropane
gas, RS-OIL ECS Silicone oil 1.000 cS, TWIN 018 HD 0.18% trypan blue + 0.03% blulife, HPF10 high purity perfluorodecalin (AL.
Nonexpansile gases, such as 18% sulfur hexafluoride (SF6), 14% octafluoropropane
(C3F8), and room air, are commonly used as gas tamponade at the end of vitrectomy [1, 2].
All patients underwent an air/gas exchange with either 20% sulfur hexafluoride (SF6) for group A or 14% octafluoropropane
(C3F8) for group B as endotamponade agents.