Evidence map›Paper›PMID 35835336›Full record

Trial reportOphthalmology2022

Postoperative Complications in the Primary Tube Versus Trabeculectomy Study During 5 Years of Follow-up.

Steven J Gedde, William J Feuer, Kin Sheng Lim, Keith Barton, Saurabh Goyal, Iqbal I Ahmed, James D Brandt, Primary Tube Versus Trabeculectomy Study Group

Open access · greenAbstract readRandomized Controlled TrialMulticenter Study
In one paragraph

Trial report in Ophthalmology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
10.0field-weighted citation impact, top 1% 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.

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

30 citing papers in PubMed, 51 citations in OpenAlex.

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  20. Comparison of clinical outcomes between gonioscopy-assisted transluminal trabeculotomy and trabeculectomy in advanced-stage pseudoexfoliation glaucoma.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2024
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 5 institutions in 3 countries.

Steven J GeddeBascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida. Electronic address: sgedde@med.miami.edu.
William J FeuerBascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida.
Kin Sheng LimSt. Thomas Hospital, London, United Kingdom.
Keith BartonMoorfields Eye Hospital, London, United Kingdom.
Saurabh GoyalSt. Thomas Hospital, London, United Kingdom; Queen Mary's Hospital, Sidcup, United Kingdom.
Iqbal I AhmedUniversity of Toronto, Toronto, Canada.
James D BrandtDepartment of Ophthalmology, University of California, Davis, Sacramento, California.
Primary Tube Versus Trabeculectomy Study Group
Moorfields Eye Hospital · GBSt Thomas' Hospital · GBUniversity of California, Davis · USUniversity of Miami · USUniversity of Toronto · CA

Funding

Shared Equipment ModuleP30EY014801 · NEI · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI Dmitry V Ivanov · 2004 to 2026
$12.2M
NEI NIH HHS P30 EY014801
6 · The paper itself

Abstract

purposeTo describe postoperative complications encountered in the Primary Tube Versus Trabeculectomy (PTVT) Study during 5 years of follow-up.

designMulticenter randomized clinical trial.

participantsA total of 242 eyes of 242 patients with medically uncontrolled glaucoma and no previous incisional ocular surgery, including 125 patients in the tube group and 117 patients in the trabeculectomy group.

methodsPatients were enrolled at 16 clinical centers and randomly assigned to treatment with a tube shunt (350-mm

main outcome measuresSurgical complications, reoperations for complications, visual acuity, and cataract progression.

resultsEarly postoperative complications occurred in 24 patients (19%) in the tube group and 40 patients (34%) in the trabeculectomy group (P = 0.013). Late postoperative complications developed in 27 patients (22%) in the tube group and 32 patients (27%) in the trabeculectomy group (P = 0.37). Serious complications producing vision loss and/or requiring a reoperation were observed in 3 patients (2%) in the tube group and 9 patients (8%) in the trabeculectomy group (P = 0.11). Cataract progression was seen in 65 patients (52%) in the tube group and 52 patients (44%) in the trabeculectomy group (P = 0.30). Surgical complications were not associated with a higher rate of treatment failure (P = 0.61), vision loss (P = 1.00), or cataract progression (P = 0.77)

conclusionsA large number of surgical complications were observed in the PTVT Study, but most were transient and self-limited. The incidence of early postoperative complications was higher following trabeculectomy with MMC than with tube shunt surgery. The rates of late postoperative complications, serious complications, and cataract progression were similar with both surgical procedures after 5 years of follow-up. Surgical complications did not increase the risk of treatment failure, vision loss, or cataract progression.

Indexed as

CataractGlaucomaGlaucoma Drainage ImplantsTrabeculectomyAlkylating AgentsBlindnessFollow-Up StudiesHumansIntraocular PressureMitomycinPostoperative ComplicationsTreatment OutcomeAlkylating AgentsMitomycinGlaucoma surgeryRandomized clinical trialSurgical complicationsTrabeculectomyTube shunt

Identifiers

PMID35835336
PMCPMC9691562
OpenAlexW4285036530

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Registered trials

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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.