Significance of QT dispersion

Kligfield, Paul; Okin, Peter M.; Lee, Ken W.; Dower, Gordon E.

doi:10.1016/s0002-9149(03)00239-x

Cited by 5 publications

(2 citation statements)

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“…Thus, for example, it is well recognized that T wave offset measurement is highly dependent on T wave amplitude and shape, and separately confounded by isoelectric projection of rounded T wave loops that are more common in abnormal subjects than in normals. [22][23][24][25][26][27][28][29] Interestingly, despite longer QT intervals apparent in the moxifloxacin vs normal subject groups (Figure 4), differences between automated algorithms remained comparably small in these two groups ( Figure 5). These findings are consistent with the relative preservation of T wave shape and amplitude in subjects receiving moxifloxacin in contrast with other types of QT prolonging drugs.…”

Section: Discussionmentioning

confidence: 99%

Comparison of automated interval measurements by widely used algorithms in digital electrocardiographs

Kligfield

Badilini²,

Denjoy

et al. 2018

American Heart Journal

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Among current-generation computer-based electrocardiographs, clinically small but statistically significant differences exist between ECG interval measurements by individual algorithms. Measurement differences between algorithms for QRS duration and for QT interval are larger in long QT interval subjects than in normal subjects. Comparisons of population study norms should be aware of small systematic differences in interval measurements due to different algorithm methodologies, within-individual interval measurement comparisons should use comparable methods, and further attempts to harmonize interval measurement methodologies are warranted.

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Section: Discussionmentioning

confidence: 99%

Comparison of automated interval measurements by widely used algorithms in digital electrocardiographs

Kligfield

Badilini²,

Denjoy

et al. 2018

American Heart Journal

Self Cite

View full text Add to dashboard Cite

show abstract

“…It is defined as the maximum difference between the smaller and the larger QT interval duration when the twelve leads are acquired simultaneously [9,12].…”

Section: Introductionmentioning

confidence: 99%