2020
DOI: 10.1038/s41598-020-75493-9
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Objective analysis of perfluoropropane tamponade area after pars plana vitrectomy using ultra-widefield fundus stereographic projection images

Abstract: To objectively analyze the gas tamponade area in patients with different concentrations of perfluoropropane (C3F8) after pars plana vitrectomy (PPV), retrospective analysis was performed in patients diagnosed with retinal detachment or macular hole and underwent PPV with C3F8 tamponade of two concentrations (14% and 20%). The ultra-widefield fundus (UWF) images at one and 10 days and four weeks postoperatively were corrected using stereographic projection to adjust peripheral distortion. The gas–fluid interfac… Show more

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Cited by 3 publications
(3 citation statements)
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“…Elevated IOP is a common complication after C3F8 tamponade [ 9 ] and is also a key point when surgeons select gas tamponade methods. Postoperative IOP increase is associated with the volume and concentration of the gas injected [ 15 ].…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Elevated IOP is a common complication after C3F8 tamponade [ 9 ] and is also a key point when surgeons select gas tamponade methods. Postoperative IOP increase is associated with the volume and concentration of the gas injected [ 15 ].…”
Section: Discussionmentioning
confidence: 99%
“…The concentration of C3F8 will affect its expandability and longevity in the eye, which are associated with the efficacy of C3F8 and postoperative complications. For C3F8, 12–18% can be regarded as non-expansive concentration [ 7 , 8 ], and 20% presumed to be slightly expansile [ 9 ]. In previous studies in British and the USA, vitreoretinal surgeons preferred to use a “full fill” of “isoexpansile” gas (US doctors prefer 18% C3F8 [ 5 ] and UK doctors prefer 14% C3F8 [ 10 ]).…”
Section: Introductionmentioning
confidence: 99%
“…The knowledge of this effect is also important in surgical practice when the surgeon is confronted with subretinal fluid or choroidal effusion. The ensuing underfilling of the vitreous chamber at the end of the operation can be overcome by a slightly higher gas concentration titrated on the specific gas’s expandability [ 74 , 128 , 129 , 130 ]. Furthermore, it has been shown that quick variations in ambient air pressure cause significant changes in intraocular pressure and therefore patients are recommended to postpone flying travel and stay away from high altitudes for approximately 2 weeks, 4 weeks, and 6 weeks after receiving SF 6 , C 2 F 6 , and C 3 F 8 , respectively [ 76 , 131 ].…”
Section: Classification Of the Vitreous Substitutes: General Principl...mentioning
confidence: 99%