Evidence map›Paper›PMID 24169926›Full record

ArticleJournal of neural transmission (Vienna, Austria : 1996)2014

Tardive dystonic syndrome induced by the calcium-channel blocker amlodipine.

Dirk Dressler

Abstract readCase Reports
PubMed Publisher
In one paragraph

Article in Journal of neural transmission (Vienna, Austria : 1996), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 3 pooled it
0.6field-weighted citation impact, top 30% 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

8 citing papers in PubMed, 3 syntheses or guidelines pooled it, 18 citations in OpenAlex.

  1. The epidemiology and phenomenology of non-antipsychotic-induced dystonia: a hybrid systematic-narrative review.European psychiatry : the journal of the Association of European Psychiatrists · 2025
    Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. L-type calcium channel blockers and a symptom complex mimicking de Melo-Souza's syndrome.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2019
    Article
  6. Article
  7. Article
  8. Review
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

1 author at 1 institution in 1 country.

Dirk DresslerMovement Disorders Section, Department of Neurology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany, dressler.dirk@mh-hannover.de.
Medizinische Hochschule Hannover · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Identification of drug exposure as a cause for dystonia is important since cessation of the causative agent offers a chance for remission. We describe two patients with a cranial, cervical, pharyngo-laryngeal and axial dystonia, akathisia, breathing dysrhythmias together with depression and anxiety. Both patients were started on the calcium channel blocker (CCB) amlodipine 1 month before symptom onset. They symptoms were non-acute and due to CCBs well-known D2 antagonism; hence they were classified as a tardive dystonic syndrome. Parkinsonism and depression have been described especially for the CCB flunarizine and cinnarizine. Tardive dystonia under CCB has rarely been reported. CCB exposure should be investigated in all dystonias with cranial, cervical, pharyngo-laryngeal and axial manifestations, especially when additional akathisia, Parkinsonism and depression are present. When CCB induction is suspected, CCB cessation may offer a chance for spontaneous remission. Whether CCB exposure can deteriorate, idiopathic dystonia is unclear. Therefore, CCB should best be avoided in patients with dystonia.

Indexed as

AgedAmlodipineAntihypertensive AgentsFemaleHumansHypertensionMaleMovement DisordersAmlodipineAntihypertensive Agents

Identifiers

PMID24169926
OpenAlexW2008810498

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.