Outcomes of a combination of augmented MicroPulse and limited Continuous Wave Cyclophotocoagulation in patients with refractory glaucoma

Sanchay Gupta, Enchi Kristina Chang, Marika Chachanidze, Nathan Hall, Cameron Neeson, Emma Klug, Ta Chen Chang, David A. Solá-Del Valle

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose: To assess the safety and effectiveness of augmented MicroPulse (MP-TSCPC) with limited Continuous Wave Transscleral Cyclophotocoagulation (CW-TSCPC) in patients with refractory glaucoma. Methods: Thirty-eight eyes of 38 patients underwent combined MP-TSCPC and CW-TSCPC at Massachusetts Eye and Ear. Kaplan–Meier survival curves and Wilcoxon paired sign rank tests were performed to evaluate intraocular pressure (IOP), glaucoma medication burden, best corrected visual acuity (BCVA), and adverse events. Results: With success defined as IOP reduction ≥ 30% and IOP between 5 and 18 mmHg, the cumulative probability of success at 1 year and 1.5 years were 0.81 (95% confidence interval (CI), 0.68–0.96) and 0.65 (95% CI, 0.50–0.86), respectively. With success defined as IOP reduction ≥ 50% and IOP between 5 and 18 mmHg, the success probability at 1 year and 1.5 years were 0.72 (95% CI, 0.57–0.89) and 0.56 (95% CI, 0.40–0.78), respectively. IOP and medication burden reductions were significant at all follow-up visits compared to baseline. Average IOP decreased from 27.9 mmHg at baseline to 11.4 mmHg at 1 year (p < 0.001) and 10.0 mmHg at 1.5 years (p < 0.001). Average medication burden decreased from 3.8 to 1.7 at 1.5 years (p = 0.001). No significant differences in visual acuity were observed at any time point. No long-term sight-threatening complications due to the combined procedure were observed, and most of the complications observed were mild and transient. Conclusion: In patients with refractory glaucoma, the combination of augmented MP-TSCPC with limited CW-TSCPC provides a significant IOP-lowering effect and decrease in medication burden without increased risk of postoperative complications.

Original languageEnglish (US)
JournalGraefe's Archive for Clinical and Experimental Ophthalmology
DOIs
StateAccepted/In press - 2021
Externally publishedYes

Keywords

  • Continuous wave
  • Cyclophotocoagulation
  • Glaucoma
  • Laser
  • Micropulse
  • Transscleral cyclophotocoagulation

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems
  • Cellular and Molecular Neuroscience

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