Evidence map›Paper›PMID 30555891›Full record

ArticleInternational journal of cardiology. Heart & vasculature2019

Prognostic impact of bundle branch block after acute coronary syndrome. Does it matter if it is left of right?

Ana Teresa Timóteo, Tiago Mendonça, Sílvia Aguiar Rosa, António Gonçalves, Ramiro Carvalho, Maria Lurdes Ferreira, Rui Cruz Ferreira

Open access · goldAbstract read
In one paragraph

Article in International journal of cardiology. Heart & vasculature, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
2.2field-weighted citation impact, top 11% 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

9 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
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  5. The ratio of QRS/RVFrontiers in cardiovascular medicine · 2023
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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

7 authors at 1 institution in 1 country.

Ana Teresa TimóteoCardiology Department, Santa Marta Hospital, Central Lisbon University Hospital, Lisbon, Portugal.
Tiago MendonçaCardiology Department, Santa Marta Hospital, Central Lisbon University Hospital, Lisbon, Portugal.
Sílvia Aguiar RosaCardiology Department, Santa Marta Hospital, Central Lisbon University Hospital, Lisbon, Portugal.
António GonçalvesCardiology Department, Santa Marta Hospital, Central Lisbon University Hospital, Lisbon, Portugal.
Ramiro CarvalhoCardiology Department, Santa Marta Hospital, Central Lisbon University Hospital, Lisbon, Portugal.
Maria Lurdes FerreiraCardiology Department, Santa Marta Hospital, Central Lisbon University Hospital, Lisbon, Portugal.
Rui Cruz FerreiraCardiology Department, Santa Marta Hospital, Central Lisbon University Hospital, Lisbon, Portugal.
Hospital de Santa Marta · PT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn previous guidelines, acute coronary syndromes (ACS) with new or presumably new left bundle branch block (LBBB) were an indication for reperfusion treatment, preferably with primary angioplasty. Recent guidelines also included the presence of right bundle branch block (RBBB) in this recommendation. It was our objective to evaluate in a population of patients with ACS the differential impact of RBBB and LBBB in prognosis.

methodsConsecutive patients included prospectively in a single-centre registry of ACS were included in the study. Patients were analyzed according to baseline ECG characteristics (normal QRS, LBBB or RBBB). Primary outcome was all-cause mortality at one-year follow-up. We used Cox-proportional hazards models to assess the predictive value for the primary outcome.

resultsA total of 3990 patients were included in, with a mean age of 64 (13) years, 72% males, 3.4% with LBBB and 4.3% with RBBB. Patients with BBB were older, with more previous history of myocardial infarction and coronary revascularization and higher prevalence of cardiovascular risk factors (except smoking). Medical treatment was similar but they were less often submitted to angioplasty. In univariate analysis, BBB patients had worst outcome (Log-rank,

conclusionsPatients with BBB have worst outcome after an ACS, particularly with RBBB. For that reason, we should pay special attention and treat these patients as aggressively as patients with normal QRS duration or LBBB.

Indexed as

Acute coronary syndromesBundle branch blockPrognosis

Identifiers

PMID30555891
PMCPMC6279709
OpenAlexW2902526892

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.