Evidence map›Paper›PMID 11488781›Full record

Trial reportBritish journal of clinical pharmacology2001

A double masked placebo controlled study on the effect of nifedipine on optic nerve blood flow and visual field function in patients with open angle glaucoma.

G Rainer, B Kiss, S Dallinger, O Findl, M Georgopoulos, C Vass, R Menapace, K Polak, H G Eichler, M Wolzt and 1 more

Open access · bronzeAbstract readClinical TrialRandomized Controlled Trial
In one paragraph

Trial report in British journal of clinical pharmacology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

6 citing papers in PubMed, 30 citations in OpenAlex.

  1. Effects of orally administered moxaverine on ocular blood flow in healthy subjects.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2013
    Trial
  2. Trial
  3. L- and T-type CaNeural regeneration research · 2023
    Article
  4. [Vasculat treatment concepts in glaucoma patients].Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft · 2021
    Review
  5. Review
  6. [Primary open-angle glaucoma and systemic diseases].Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft · 2007
    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

11 authors at 1 institution in 1 country.

G RainerDepartment of Clinical Pharmacology, Institute of Medical Physics, Vienna, Austria.
B Kiss
S Dallinger
O Findl
M Georgopoulos
C Vass
R Menapace
K Polak
H G Eichler
M Wolzt
L Schmetterer
Medical University of Vienna · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsTo investigate whether nifedipine affects ocular perfusion or visual fields in open angle glaucoma patients.

methodsIn a parallel group study nifedipine or placebo was administered for 3 months (n = 30). Ocular fundus pulsation amplitude (FPA), cup blood flow (Flowcup) and visual field mean deviation (MD) were measured.

resultsFive patients receiving nifedipine discontinued due to adverse events. Nifedipine did not affect FPA [difference: 0.3 microm (95% CI -0.3,0.9); P = 0.70], Flowcup: [difference: -9 rel.units (95% CI -133,114); P = 0.99], or MD [difference: 0.2dB (95% CI -2.2,2.7); P = 0.51] vs placebo.

conclusionsSystemic nifedipine is not well tolerated in glaucoma patients and exerts no effect on visual fields or ocular perfusion.

Indexed as

Administration, OralBlood Flow VelocityCalcium Channel BlockersFundus OculiGlaucoma, Open-AngleHumansInterferometryIntraocular PressureLaser-Doppler FlowmetryNifedipineOptic NerveVisual FieldsCalcium Channel BlockersNifedipine

Identifiers

PMID11488781
PMCPMC2014529
OpenAlexW1968312161

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.