Evidence map›Paper›PMID 21538234›Full record

ArticleClinical research in cardiology : official journal of the German Cardiac Society2011

Diagnostic accuracy of NT-proBNP ratio (BNP-R) for early diagnosis of tachycardia-mediated cardiomyopathy: a pilot study.

Amir M Nia, Natig Gassanov, Kristina M Dahlem, Evren Caglayan, Martin Hellmich, Erland Erdmann, Fikret Er

Abstract readEvaluation Study
PubMed Publisher
In one paragraph

Article in Clinical research in cardiology : official journal of the German Cardiac Society, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 40 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Article
  5. Definition and management of arrhythmia-induced cardiomyopathy: findings from the European Heart Rhythm Association survey.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2024
    Article
  6. Article
  7. Review
  8. Review
  9. Review
  10. Article
  11. Article
  12. Tachycardia induced Cardiomyopathy.Korean circulation journal · 2019
    Review
  13. Article
  14. Review
  15. Arrhythmia-Induced Cardiomyopathies: Mechanisms, Recognition, and Management.Journal of the American College of Cardiology · 2015
    Review
  16. Non-reentrant atrioventricular nodal tachycardia.Clinical research in cardiology : official journal of the German Cardiac Society · 2013
    Article
  17. Article
  18. 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

7 authors at 1 institution in 1 country.

Amir M NiaDepartment of Internal Medicine III, University of Cologne, Germany.
Natig Gassanov
Kristina M Dahlem
Evren Caglayan
Martin Hellmich
Erland Erdmann
Fikret Er
University of Cologne · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWhen heart failure and tachycardia occur simultaneously, a useful diagnostic tool for early discrimination of patients with benign tachycardia-mediated cardiomyopathy (TMC) versus major structural heart disease (MSHD) is not available. Such a tool is required to prevent unnecessary and wearing diagnostics in patients with reversible TMC. Moreover, it could lead to early additional diagnostics and therapeutic approaches in patients with MSHD.

methodsA total of 387 consecutive patients with supraventricular arrhythmia underwent assessment at a single center. Of these patients, 40 fulfilled the inclusion criteria with a resting heart rate ≥100 bpm and an impaired left ventricular ejection fraction <40%. In all patients, successful electrical cardioversion was performed. At baseline, day 1 and weekly for 4 weeks, levels of NT-proBNP and echocardiographic parameters were evaluated. An NT-proBNP ratio (BNP-R) was calculated as a quotient of baseline NT-proBNP/follow-up NT-proBNP. After 4 weeks, cardiac catheterization was performed to identify patients with a final diagnosis of TMC versus MSHD.

resultsInitial NT-proBNP concentrations were elevated and consecutively decreased after cardioversion in all patients. Multivariate regression and ROC analysis revealed that BNP-R discriminated between patients with TMC versus MSHD independent and superior to all other variables. The area under the ROC curve for BNP-R to detect TMC was 0.90 (95% CI 0.79-1.00; p < 0.001) after 1 week and 0.995 (95% CI 0.99-1.00; p < 0.0001) after 4 weeks. One week after cardioversion already, a BNP-R cutoff ≥2.3 was useful for TMC diagnosis indicated by an accuracy of 90%, sensitivity of 84% and specificity of 95%.

conclusionBNP-R was found to be highly accurate for the early diagnosis of TMC.

Indexed as

AgedBiomarkersCardiac CatheterizationCardiomyopathiesEarly DiagnosisEchocardiography, DopplerElectric CountershockExercise TestFemaleGermanyHeart FailureHeart RateHumansLogistic ModelsMaleMiddle AgedBiomarkersNatriuretic Peptide, BrainPeptide Fragmentspro-brain natriuretic peptide (1-76)

Identifiers

PMID21538234
OpenAlexW2048874889

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.