Evidence map›Paper›PMID 33952813›Full record

ArticleInternal medicine (Tokyo, Japan)2021

Variant Angina with Spontaneously Documented Ischemia- and Tachycardia-induced "Lambda" Waves.

Koji Takahashi, Tomoki Sakaue, Mina Yamashita, Daijiro Enomoto, Shigeki Uemura, Takafumi Okura, Shuntaro Ikeda, Nobuhisa Yamamura, Kaori Ikeda

Open access · diamondAbstract read
In one paragraph

Article in Internal medicine (Tokyo, Japan), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
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

3 citing papers in PubMed, 4 citations in OpenAlex.

  1. Review
  2. Article
  3. 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

9 authors at 2 institutions in 1 country.

Koji TakahashiDepartment of Community Emergency Medicine, Ehime University Graduate School of Medicine, Japan.
Tomoki SakaueDepartment of Community Emergency Medicine, Ehime University Graduate School of Medicine, Japan.
Mina YamashitaDepartment of Cardiology, Yawatahama City General Hospital, Japan.
Daijiro EnomotoDepartment of Cardiology, Yawatahama City General Hospital, Japan.
Shigeki UemuraDepartment of Cardiology, Yawatahama City General Hospital, Japan.
Takafumi OkuraDepartment of Cardiology, Yawatahama City General Hospital, Japan.
Shuntaro IkedaDepartment of Community Emergency Medicine, Ehime University Graduate School of Medicine, Japan.
Nobuhisa YamamuraDepartment of Clinical Pathology, Yawatahama City General Hospital, Japan.
Kaori IkedaDepartment of Clinical Pathology, Yawatahama City General Hospital, Japan.
Yawata Medical Center · JPEhime University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In a patient with variant angina of the proximal left anterior descending coronary artery, myocardial ischemia changed the QRS-ST-T configurations without J-waves into those resembling "lambda" waves at maximal ST-segment elevation, and couplets or triplets of supraventricular extrasystole (SVE) changed the ischemia-induced "lambda" waves into QRS-ST-T configurations resembling a "tombstone" morphology or "monophasic QRS-ST complex." At the resolution phase of coronary spasm, the QRS-ST-T configurations returned to those without J-waves and were changed by SVE into "lambda" waves. Interestingly, neither ischemia- nor SVE-induced "lambda" waves or SVE-induced "tombstone" morphology or "monophasic QRS-ST complex" were complicated by ventricular tachyarrhythmia.

Indexed as

Angina Pectoris, VariantElectrocardiographyArrhythmias, CardiacHumansIschemiaTachycardialambda waveleft anterior fascicular blockleft septal fascicular blockproximal left anterior descending coronary arterytransmural conduction delayvariant angina

Identifiers

PMID33952813
PMCPMC8170254
OpenAlexW3157944036

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.