Evidence map›Paper›PMID 34079219›Full record

ArticleClinical ophthalmology (Auckland, N.Z.)2021

Success of Primary Trabeculectomy in Advanced Open Angle Glaucoma.

Anca Pantalon, Crenguta Feraru, Filip Tarcoveanu, Dorin Chiselita

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Clinical ophthalmology (Auckland, N.Z.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07152132 (Slow Coagulation Trans-Scleral Cyclophotocoagulation Versus Trabeculectomy in Medically Uncontrolled Open-Angle Glaucoma in Pseudophakic Patients), which is not on this map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 11% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT07152132 narecruitingnot on this mapstarted 2025, after this paper: background citation

Slow Coagulation Trans-Scleral Cyclophotocoagulation Versus Trabeculectomy in Medically Uncontrolled Open-Angle Glaucoma in Pseudophakic Patients

TypeinterventionalSponsorMinia UniversityRan2025 to 2026Enrolled50ConditionsGlaucoma, Open AngleArmsTrabeculectomy, Slow coagulation trans-scleral cyclophotocoagulation
3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Polypharmacy in glaucoma management: a narrative review.Irish journal of medical science · 2026
    Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Flow-Adjusted Trabeculectomy.Journal of clinical medicine · 2024
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Updates on the Diagnosis and Management of Glaucoma.Mayo Clinic proceedings. Innovations, quality & outcomes · 2022
    Review
  14. Article
  15. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 3 institutions in 2 countries.

Anca PantalonOphthalmology Clinic, St. Spiridon Emergency University Hospital, Iași, Romania.
Crenguta FeraruOphthalmology Department, Gr. T. Popa University of Medicine and Pharmacy, Iași, Romania.
Filip TarcoveanuOphthalmology Department, Gr. T. Popa University of Medicine and Pharmacy, Iași, Romania.
Dorin ChiselitaOphthalmology Clinic, St. Spiridon Emergency University Hospital, Iași, Romania.
Spitalul Clinic Judeţean de Urgenţe "Sf. Spiridon" Iaşi · ROCountess of Chester Hospital NHS Foundation Trust · GBGrigore T. Popa University of Medicine and Pharmacy · RO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimThe study assesed trabeculectomy survival in advanced open angle glaucoma (OAG).

methodsThis is a retrospective longitudinal study in advanced OAG undergoing primary trabeculectomy. Clinical and demographic parameters were recorded. Surgical survival (qualified/complete) was calculated by Kaplan-Meier analysis for multiple upper limits of intraocular pressure (IOP) with/without medication (≤21 mmHg, ≤18 mmHg, ≤15 mmHg, ≤12 mmHg); Cox hazard ratio analysis identified parameters influencing survival.

resultsWe included 165 eyes from 165 OAG patients: primary forms (POAG) - 86 eyes and secondary (pseudoexfoliative, SOAG) - 79 eyes; mean follow-up interval was 36.21 ± 13.49 months. Clinical parameters were comparable between sub-groups at baseline, except a higher IOP in SOAG vs POAG (36.6 ± 13.2 vs 32.7 ± 11.1 mmHg, p = 0.04); IOP reduction was similar (SOAG vs POAG) 53.93% vs 56.19%, p = 0.45, yet longer hospitalization (8.47 ± 4.39 (SOAG) vs 6.69 ± 3.01 days (POAG), p=0.03) and more medications (0.65 ± 0.24 vs 0.36 ± 0.16, p = 0.05) were needed to achieve comparable final IOP (16.0 ± 9.1 vs 15.1 ± 7.8 mmHg, p = 0.45). Kaplan Meier survival analysis applied for IOP ≤21 mmHg, ≤18 mmHg, ≤15 mmHg and ≤12 mmHg, revealed complete success in 26.2%, 27.3%, 34.5% and 54.6% eyes, respectively; qualified success was found in 45.7%, 48.6%, 77% and 88.6% eyes, respectively. Multiple medications at baseline diminished survival in all tested models (hazard ratio HR > 1, p<0.05), while 5FU+needling improved survival, mostly if combined with lower IOP regime: HR = 0.15, 95% CI = [0.07 -1.12], p = 0.06, if IOP ≤15 mmHg and HR = 0.09, 95% CI = [0.02-1.25], p = 0.06, if IOP ≤12 mmHg.

conclusionTrabeculectomy in advanced OAG reached very good survival rates (77% and 88.6%) at 36 months postoperative, if IOP could be maintained ≤15 mmHg, respectively ≤12 mmHg with medication and additional needling+5FU maneuvers. Specific factors influencing survival were identified for each success definition.

Indexed as

advanced open angle glaucomalong term successtrabeculectomy

Identifiers

PMID34079219
PMCPMC8166817
OpenAlexW3164928802

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.