2022
DOI: 10.1101/2022.01.10.22268661
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Improved evaluation of left ventricular hypertrophy using the spatial QRS-T angle by electrocardiography

Abstract: Background: Conventional electrocardiographic (ECG) signs of left ventricular hypertrophy lack sensitivity, The aim was to identify LVH based on an abnormal spatial peaks QRS-T angle, and evaluate its diagnostic and prognostic performance compared to that of conventional ECG criteria for LVH. Methods: This was an observational study with four cohorts, all with a QRS duration <120 ms: (1) Healthy volunteers to define normality (n=921), (2) Separate healthy volunteers to compare test specificity (n=461), (3) … Show more

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Cited by 3 publications
(4 citation statements)
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“…The study excluded patients with LVEF <55%. A-ECG scores previously validated for the detection of reduced LVEF were also applied to this cohort, confirming a low likelihood of left ventricular systolic dysfunction for both the control and diastolic dysfunction cohorts (7 [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] % and 13 [4-33] %, respectively), where a probability of >50% was considered a high likelihood.…”
Section: Study Populationmentioning
confidence: 55%
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“…The study excluded patients with LVEF <55%. A-ECG scores previously validated for the detection of reduced LVEF were also applied to this cohort, confirming a low likelihood of left ventricular systolic dysfunction for both the control and diastolic dysfunction cohorts (7 [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] % and 13 [4-33] %, respectively), where a probability of >50% was considered a high likelihood.…”
Section: Study Populationmentioning
confidence: 55%
“…Heart age and heart age gap were therefore calculated from the ECG for all patients in our 1 cohort using a previously described A-ECG method 10 . Moreover, the likelihood of having left 2 ventricular systolic dysfunction was also determined from the resting 12-lead ECG by using 3 previously described A-ECG methods 9 . 17,18 .…”
Section: Advanced Electrocardiography Analysismentioning
confidence: 99%
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“…Although ECG-based new criteria or new studies using existing criteria for detecting LVH have been proposed or reported in recent years, the overall sensitivity and precision are still disappointing (Ref. [11][12][13][14][15][16][17][18][19]). These criteria mainly take the combination of multi-lead peak and valley amplitudes of R and S waves, associated with ventricular depolarization, as the threshold for diagnosing LVH.…”
Section: Introductionmentioning
confidence: 99%