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Factors impacting gas fill after microincision vitrectomy surgery combined with fluid–gas exchange

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PURPOSE: The objective of the study was to investigate possible factors influencing gas fill after microincision vitrectomy surgery (MIVS) combined with fluid–gas exchange. MATERIALS AND METHODS: This was a retrospective… Click to show full abstract

PURPOSE: The objective of the study was to investigate possible factors influencing gas fill after microincision vitrectomy surgery (MIVS) combined with fluid–gas exchange. MATERIALS AND METHODS: This was a retrospective chart review of patients who underwent MIVS combined with fluid–gas exchange (20% C3F8) from February 2017 to December 2017. RESULTS: Sixty-one eyes of 58 patients were identified. The mean age was 59.97 ± 9.65 years. The mean gas fill percentage was 76.28% ± 14.29% on day 1, 65.49% ±13.65% on day 3, 60.03% ± 14.53% on day 4, and 43.9% ± 20.88% on day 7 postoperatively. Compared to phakic eyes, eyes that were pseudophakic prior to surgery had a lower gas fill on days 1–3, but the difference did not reach significance on day 3. Eyes that underwent phacovitrectomy had a significantly lower gas fill on days 1–3 than eyes that did not. CONCLUSION: Postoperative pseudophakic status is associated with lower gas fill after MIVS. Adjusted gas fill should be considered in these cases.

Keywords: combined fluid; fluid gas; gas; gas exchange; gas fill

Journal Title: Taiwan Journal of Ophthalmology
Year Published: 2020

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