Evidence map›Paper›PMID 32123805›Full record

ArticleEuropean heart journal. Case reports2019

Twiddler's syndrome with a subcutaneous implantable cardioverter-defibrillator presenting with an inappropriate shock: a case report.

C Fielder Camm, Kim Rajappan, Mark Curson, Lindsey Tilling

Open access · goldAbstract readCase Reports
In one paragraph

Article in European heart journal. Case reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.8field-weighted citation impact, top 24% 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, 10 citations in OpenAlex.

  1. Twiddler syndrome and Reel syndrome in patients with subcutaneous implantable cardioverter-defibrillator (S-ICD): a meta-summary of case reports.Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing · 2026
    Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. S-ICD Implantation "Tips and Tricks".Reviews in cardiovascular medicine · 2023
    Review
  7. Article
  8. 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 2 institutions in 1 country.

C Fielder CammDepartment of Cardiology, Royal Berkshire NHS Foundation Trust, London Road, Reading, RG1 5AN, UK.ORCID 0000-0003-2122-4225
Kim RajappanDepartment of Cardiology, Oxford University Hospitals NHS Foundation Trust, Headley Way, Oxford, OX3 9DU, UK.
Mark CursonDepartment of Cardiology, Royal Berkshire NHS Foundation Trust, London Road, Reading, RG1 5AN, UK.
Lindsey TillingDepartment of Cardiology, Royal Berkshire NHS Foundation Trust, London Road, Reading, RG1 5AN, UK.
Royal Berkshire NHS Foundation Trust · GBOxford University Hospitals NHS Trust · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSubcutaneous implantable cardioverter-defibrillators (S-ICDs) are increasingly used in patients at risk of fatal cardiac arrhythmias. Twiddler's syndrome is a condition in which a device is manipulated by the patient after implantation leading to lead twisting and retraction. Device manipulation has been reported multiple times in transvenous pacing systems and occasionally leads to inappropriate discharges from implanted defibrillators. However, little has been reported about device manipulation in S-ICD devices. CASE SUMMARY: We present the case of a 16-year-old who underwent insertion of an S-ICD for idiopathic dilated cardiomyopathy. He represented for a pacing check following a discharge from the device. This showed a significant change in the sensed vectors. Chest radiographs confirmed lead retraction and suggested device manipulation. The device was turned off to prevent further inappropriate shocks. The patient underwent successful reimplantation of a S-ICD device. DISCUSSION: This case highlights that twiddler's syndrome can occur in those with an S-ICD and lead to an inappropriate device discharge. The patient in this case had a number of risk factors that have been previously associated with twiddler's syndrome.

Indexed as

Case reportSubcutaneous ICDTwiddler’s syndrome

Identifiers

PMID32123805
PMCPMC7042151
OpenAlexW2988424215

What OpenQuestion holds

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LicenceCC BY-NC
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.