AI Article Synopsis

  • Postoperative endophthalmitis (POE) is a rare but serious complication that can occur after eye surgeries, yet its rates following ab-interno canaloplasty (ABiC), a type of microinvasive glaucoma surgery (MIGS), have not been well studied.
  • A retrospective review of surgical cases from 2015 to 2021 found only one instance of POE among 3,256 ABiC procedures, resulting in a very low incidence rate of 0.03%.
  • The findings suggest that the risk of POE after ABiC is comparable to, and statistically non-inferior to, rates observed in other eye surgeries such as standalone catar

Article Abstract

Introduction: Postoperative endophthalmitis (POE) is a rare but devastating complication of ophthalmic surgeries. Microinvasive glaucoma surgery (MIGS) procedures have become increasingly utilized for the surgical reduction of intraocular pressure (IOP). Ab-interno canaloplasty (ABiC) is a popular MIGS procedure, but POE rates and clinical effects following ABiC have not been studied.

Methods: This study conducted a retrospective review of all consecutive cases of either standalone ABiC or combined ABiC with phacoemulsification performed at a tertiary care academic referral center from 2015 to 2021. Exclusion criteria included a history of incisional glaucoma surgery, retinal surgery, or additional concurrent microinvasive glaucoma surgery (MIGS) at the time of ABiC. The rates of POE after ABiC were calculated with 95% confidence intervals (CI) based on the Clopper-Pearson exact method.

Results: Of 3256 cases of ABiC, one case (0.03%, 1/3256, 95% CI: 0.00-0.17%) of post-ABiC endophthalmitis was identified. The rate of POE in standalone ABiC was 0.00% (0/1332 cases, 95% CI: 0.00-0.28%), whereas the rate in combined ABiC with phacoemulsification was 0.05% (1/1924 cases, 95% CI: 0.00-0.29%). Additionally, the rate of POE following stand-alone cataract surgery, 0.10%, 11/11,470 cases, 95% CI: 0.05-0.17%), total cataract surgeries, 0.06% (17/28,013 cases, 95% CI: 0.04-0.10%), total MIGs, excluding ABiC, surgeries, 0.08%, (3/3845 cases, 95% CI: 0.02-0.23%) portray non-inferiority of ABiC in the risk of POE. The case of ABiC-POE presented four days after surgery and required a vitreous tap with intraocular injection of antibiotics and pars plana vitrectomy. No causative organism was identified. A final 1-year follow-up revealed a corrected distance visual acuity of 20/40 and stable glaucoma.

Conclusion: The rate of POE after ABiC (1 per 3256 cases) is statistically non-inferior to the reported incidence of POE after other MIGS and incisional glaucoma surgeries.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9700441PMC
http://dx.doi.org/10.2147/OPTH.S392322DOI Listing

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