Evidence map›Paper›PMID 33526519›Full record

ArticleBMJ case reports2021

Multiple thromboembolic events associated with bilateral superior vena cava and anomalous drainage into the left atrium.

Maria Elizabeth Karavassilis, Michael Haji-Coll, Niall G Keenan

Open access · greenAbstract readCase ReportsVideo-Audio Media
In one paragraph

Article in BMJ case reports, 2021. 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
0.6field-weighted citation impact, top 33% 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

1 citing paper in PubMed, 3 citations in OpenAlex.

  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

3 authors at 1 institution in 1 country.

Maria Elizabeth KaravassilisIntensive Care Unit, West Hertfordshire Hospitals NHS Trust, Watford, UK maria.karavassilis@nhs.net.
Michael Haji-CollStroke Medicine, West Hertfordshire Hospitals NHS Trust, Watford, Hertfordshire, UK.
Niall G KeenanCardiology, West Hertfordshire Hospitals NHS Trust, Watford, UK.
West Hertfordshire Hospitals NHS Trust · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A 49-year-old female patient presented with acute-on-chronic chest pain. She was diagnosed with multiple systemic thromboemboli, including myocardial infarctions, bilateral chronic pulmonary emboli, ischaemic stroke, deep venous thrombosis and superficial thrombophlebitis. She had a background of sickle cell trait. Cardiac magnetic resonance showed bilateral superior vena cava (SVC). The right-sided SVC (RSVC) was joined by the right upper pulmonary vein and drained anomalously into the left atrium. This caused a small volume right to left shunt. The persistent left SVC drained into the right atrium (RA) via a dilated coronary sinus. The overall clinical impression was recurrent paradoxical emboli due to anomalous venous anatomy with a thrombophilia secondary to sickle cell trait. In the normal embryo, the right common cardinal vein develops to become the RSVC, which drains into the RA by term.

Indexed as

EchocardiographyEmbolism, ParadoxicalFemaleHumansIschemic StrokeMagnetic Resonance ImagingMiddle AgedMyocardial InfarctionPersistent Left Superior Vena CavaPulmonary EmbolismPulmonary VeinsRecurrenceSickle Cell TraitThrombophiliaThrombophlebitisVascular Malformationsclinical diagnostic testshaematology (incl blood transfusion)radiologyradiology (diagnostics)venous thromboembolism

Identifiers

PMID33526519
PMCPMC7852915
OpenAlexW3126286709

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.