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Related Experiment Videos

Trabeculectomy for acute primary angle closure.

T Aung1, S L Tow, E Y Yap

  • 1Singapore National Eye Centre, Singapore, Singapore.

Ophthalmology
|July 13, 2000
PubMed
Summary
This summary is machine-generated.

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Trabeculectomy is less effective for acute primary angle closure (APAC) that doesn't respond to medical treatment. Medically unresponsive APAC cases have a high risk of surgical failure and complications, suggesting alternative procedures may be preferable.

Area of Science:

  • Ophthalmology
  • Surgical Procedures
  • Glaucoma Research

Background:

  • Acute primary angle closure (APAC) management typically involves medical therapy followed by laser peripheral iridotomy.
  • Asian eyes with APAC often show resistance to standard medical treatments.
  • Trabeculectomy is considered for APAC cases unresponsive to medical therapy or those with underlying chronic angle-closure glaucoma.

Purpose of the Study:

  • To evaluate the outcomes of trabeculectomy in patients with acute primary angle closure (APAC).
  • To compare the efficacy and complication rates of trabeculectomy in medically responsive versus medically unresponsive APAC.
  • To determine the suitability of trabeculectomy as a primary surgical intervention for APAC.

Main Methods:

  • A retrospective case series of 56 patients undergoing trabeculectomy for APAC across two Singapore centers (1993-1995).

Related Experiment Videos

  • Patients were divided into two groups: medical failure (Group A) and medical success (Group B) based on response to initial medical therapy.
  • Surgical outcomes were assessed by final intraocular pressure (IOP), medication use, and complication incidence. Success was defined as IOP < 21 mmHg with or without medication.

    • Main Results:

    • In the medically unresponsive group (n=32), trabeculectomy achieved success in 56.2% and qualified success in 9.4%, with an 11-patient failure rate (34.4%) and a 31.3% complication rate.
    • In the medically responsive group (n=24), trabeculectomy achieved success in 87.5% and qualified success in 12.5%, with no failures and a 16.7% complication rate.
    • Trabeculectomy outcomes were significantly poorer in the medically unresponsive APAC group compared to the medically responsive group (P<0.001).

    Conclusions:

    • Trabeculectomy demonstrates a high risk of failure and complications in medically unresponsive APAC cases.
    • The findings suggest that trabeculectomy may not be the optimal surgical choice for APAC patients who do not respond to initial medical management.
    • Alternative surgical strategies should be considered for medically unresponsive APAC to improve patient outcomes and reduce risks.