Suprachoroidal gas injection as a complication of pars plana vitrectomy confirmed by computed tomography
Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
Background: Suprachoroidal gas injection has been reported as a complication of pneumatic retinopexy, and the usefulness of B-scan ultrasonography has been reported. A case of suprachoroidal gas injection as a complication of pars plana vitrectomy confirmed by computed tomography (CT) is presented here.
Methods: A 64-year-old woman developed a vitreous hemorrhage due to a retinal tear secondary to an old branch retinal vein occlusion. A 23-gauge pars plana vitrectomy was performed. Sclerotomies were performed at a 30° angle. After air–fluid exchange, sulfur hexafluoride gas was injected through a temporo-superior sutured sclerotomy with direct visualization of the entire needle tip. Postoperatively, a large choroidal elevation was identified temporo-superiorly with intravitreal gas, and the patient complained of a mild headache.
Results: On postoperative Day 7, a CT scan showed two low-density areas, confirming the presence of suprachoroidal gas; intravitreal gas blocked visualization of the suprachoroidal gas on B-scan ultrasonography. On postoperative Day 14, the intravitreal gas resolved and a CT scan showed a small amount of residual suprachoroidal gas. By this time, the headache had completely resolved.
Conclusion: Suprachoroidal gas injection is a rare complication of pars plana vitrectomy that resolves spontaneously. In this case, CT scans confirmed the presence of suprachoroidal gas despite the presence of intravitreal gas.
Keywords: suprachoroidal gas, complication, pars plana vitrectomy, computed tomography
This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License. By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms.Download Article [PDF] View Full Text [HTML][Machine readable]