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Specificity for each of the 46 criteria of the Selvester QRS score for electrocardiographic myocardial scar sizing in left bundle branch block.

Publication ,  Journal Article
Åkerlund, S; Wieslander, B; Turesson, M; Nijveldt, R; Klem, I; Almer, J; Engblom, H; Wagner, GS; Atwater, BD; Ugander, M
Published in: J Electrocardiol
2015

BACKGROUND: The Selvester QRS score consists of a set of electrocardiographic criteria designed to identify, quantify and localize scar in the left ventricle using the morphology of the QRS complex. These criteria were updated in 2009 to expand their use to patients with underlying conduction abnormalities, but these versions have thus far only been validated in small and carefully selected populations. AIM: To determine the specificity for each of the criteria of the left bundle branch block (LBBB) modified Selvester QRS Score (LB-SS) in a population with strict LBBB and no myocardial scar as verified by cardiovascular magnetic resonance imaging with late gadolinium enhancement (CMR-LGE). METHODS: We identified ninety-nine patients with LBBB without scar on CMR-LGE, who underwent a clinically indicated CMR scan at three different centers. The ECG recording date was any time prior to or <30days after the CMR scan. The LB-SS was applied and specificity for detection of scar in each of the 46 separate criteria was determined. RESULTS: The specificity ranged between 41% and 100% for the 46 criteria of LB-SS and 27/46 (59%) met ≥95% specificity. The mean±SD specificity was 90%±14%. CONCLUSION: Several of the criteria in the LB-SS lack adequate specificity. Elimination or modification of these nonspecific QRS morphology criteria may improve the specificity of the overall LB-SS.

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Published In

J Electrocardiol

DOI

EISSN

1532-8430

Publication Date

2015

Volume

48

Issue

5

Start / End Page

769 / 776

Location

United States

Related Subject Headings

  • Software Validation
  • Severity of Illness Index
  • Sensitivity and Specificity
  • Reproducibility of Results
  • Observer Variation
  • Myocardial Stunning
  • Middle Aged
  • Male
  • Humans
  • Female
 

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Åkerlund, S., Wieslander, B., Turesson, M., Nijveldt, R., Klem, I., Almer, J., … Ugander, M. (2015). Specificity for each of the 46 criteria of the Selvester QRS score for electrocardiographic myocardial scar sizing in left bundle branch block. J Electrocardiol, 48(5), 769–776. https://doi.org/10.1016/j.jelectrocard.2015.07.018
Åkerlund, Sofia, Björn Wieslander, Madeleine Turesson, Robin Nijveldt, Igor Klem, Jakob Almer, Henrik Engblom, Galen S. Wagner, Brett D. Atwater, and Martin Ugander. “Specificity for each of the 46 criteria of the Selvester QRS score for electrocardiographic myocardial scar sizing in left bundle branch block.J Electrocardiol 48, no. 5 (2015): 769–76. https://doi.org/10.1016/j.jelectrocard.2015.07.018.
Åkerlund S, Wieslander B, Turesson M, Nijveldt R, Klem I, Almer J, et al. Specificity for each of the 46 criteria of the Selvester QRS score for electrocardiographic myocardial scar sizing in left bundle branch block. J Electrocardiol. 2015;48(5):769–76.
Åkerlund, Sofia, et al. “Specificity for each of the 46 criteria of the Selvester QRS score for electrocardiographic myocardial scar sizing in left bundle branch block.J Electrocardiol, vol. 48, no. 5, 2015, pp. 769–76. Pubmed, doi:10.1016/j.jelectrocard.2015.07.018.
Åkerlund S, Wieslander B, Turesson M, Nijveldt R, Klem I, Almer J, Engblom H, Wagner GS, Atwater BD, Ugander M. Specificity for each of the 46 criteria of the Selvester QRS score for electrocardiographic myocardial scar sizing in left bundle branch block. J Electrocardiol. 2015;48(5):769–776.
Journal cover image

Published In

J Electrocardiol

DOI

EISSN

1532-8430

Publication Date

2015

Volume

48

Issue

5

Start / End Page

769 / 776

Location

United States

Related Subject Headings

  • Software Validation
  • Severity of Illness Index
  • Sensitivity and Specificity
  • Reproducibility of Results
  • Observer Variation
  • Myocardial Stunning
  • Middle Aged
  • Male
  • Humans
  • Female