Evidence map›Paper›PMID 41528469›Full record

ArticleGraefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie2026

Factors influencing the long-term-success of the XEN gel stent.

Caroline J Wenzel, Daniel A Wenzel, Christina Pagonidou, Vasyl Druchkiv, Emil Nasyrov, Bogomil Voykov

Abstract read
In one paragraph

Article in Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. 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

6 authors.

Caroline J WenzelCentre for Ophthalmology, University Hospital Tübingen, Elfriede-Aulhorn-Str. 7, 72076, Tübingen, Germany. caroline.wenzel@med.uni-tuebingen.de.
Daniel A WenzelCentre for Ophthalmology, University Hospital Tübingen, Elfriede-Aulhorn-Str. 7, 72076, Tübingen, Germany.
Christina PagonidouCentre for Ophthalmology, University Hospital Tübingen, Elfriede-Aulhorn-Str. 7, 72076, Tübingen, Germany.
Vasyl DruchkivDepartment of Research and Development, Clinica Baviera-AIER Eye Group, Valencia, Spain.
Emil NasyrovCentre for Ophthalmology, University Hospital Tübingen, Elfriede-Aulhorn-Str. 7, 72076, Tübingen, Germany.
Bogomil VoykovCentre for Ophthalmology, University Hospital Tübingen, Elfriede-Aulhorn-Str. 7, 72076, Tübingen, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe XEN gel stent is a minimally invasive surgical device for patients with open-angle glaucoma, developed to reduce complications associated with traditional filtration surgery. This study aimed to identify clinical factors that influence long-term surgical success, particularly in the context of postoperative conjunctival scarring.

methodsIn this retrospective study, 773 eyes of patients with glaucoma treated at a tertiary care center underwent implantation of the XEN gel stent. The primary outcome was long-term surgical success, defined as a reduction in intraocular pressure of at least 20% and achieving a target pressure of 18, 15, or 12 mmHg, either without (complete) or with (qualified) medication. Secondary outcomes included intraocular pressure reduction, change in best-corrected visual acuity and medication use. Potential risk factors were analysed using Kaplan-Meier survival curves and multivariable Cox regression.

resultsAt 24 months, complete and qualified success for a target pressure of 18 mmHg was achieved in 50% and 64% of cases, respectively; at 72 months, in 35% and 54%. Visual acuity remained stable. Female sex, mitomycin C dose, moderately elevated baseline pressure, and lower pressure on the first postoperative day were associated with significantly higher success rates (p < 0.05). Glaucoma subtype and previous incisional glaucoma surgery had no significant effect.

conclusionSex, lower antimetabolite dose and intraocular pressure values before and shortly after surgery are significant predictors of long-term success following XEN gel stent implantation.

Indexed as

Filtering SurgeryGlaucoma Drainage ImplantsGlaucoma, Open-AngleIntraocular PressureStentsVisual AcuityAgedFemaleFollow-Up StudiesHumansMaleMiddle AgedProsthesis DesignRetrospective StudiesRisk FactorsTime FactorsGlaucomaMinimally-invasive bleb surgeryRisk factorXEN gel stent

Identifiers

PMID41528469
PMCPMC13091851

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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.