Does prior endoscopic cyclophotocoagulation (ECP) affect subsequent trabeculectomy outcomes?

Area of Science:

• Ophthalmology
• Glaucoma Surgery
• Medical Optics

Background:

• Glaucoma management often requires surgical intervention to lower intraocular pressure (IOP).
• Trabeculectomy is a common glaucoma surgery, but carries risks and potential complications.
• Endoscopic cyclophotocoagulation (ECP) is an alternative or adjunctive procedure for glaucoma treatment.

Purpose of the Study:

• To evaluate the long-term efficacy and safety of trabeculectomy performed after prior endoscopic cyclophotocoagulation (ECP).
• To compare the outcomes of trabeculectomy in eyes with prior ECP versus primary trabeculectomy.

Main Methods:

• A retrospective, case-controlled comparative study design.
• Two groups were analyzed: Group 1 (trabeculectomy after failed ECP) and Group 2 (primary trabeculectomy).
• Two-year outcomes including IOP, medication use, and success rates were compared between groups.

Main Results:

• No significant differences in mean 2-year IOP or medication use were observed between groups.
• Complete success rates were 77.8% for ECP followed by trabeculectomy and 88.9% for primary trabeculectomy.
• Qualified and combined success rates were comparable, with no significant differences in complications.

Conclusions:

• ECP is a safe and effective initial procedure for progressive glaucomas.
• ECP can significantly decrease the need for subsequent trabeculectomy.
• Trabeculectomy outcomes are not compromised in the minority of patients requiring it after ECP.