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Electrocardiographic assessment of left ventricular hypertrophy with time–voltage QRS and QRST-wave areas

Journal of Human Hypertension volume 18, pages 33–40 (2004)Cite this article

Abstract

The sum of time–voltage QRS areas in the 12-lead electrocardiogram (ECG) has outperformed other 12-lead ECG indices for detection of left ventricular hypertrophy (LVH). We assessed indices of time–voltage QRS and T-wave (QRST) areas from body surface potential mapping (BSPM) for detection of and quantitation of the degree of LVH. We studied 42 patients with echocardiographic LVH (LVH group) and 11 healthy controls (controls). QRST area sums were calculated from 123-lead BSPM and from the 12-lead ECG for comparison. Leadwise discriminant indices and correlation coefficients were used to identify optimal recording locations for QRST area-based LVH assessment. BSPM QRS area sum was greater in the LVH group than in controls (3752 ± 1259 vs 2278 ± 627 μV s, respectively; P<0.001) and at 91% specificity showed 74% sensitivity for LVH detection. The 12-lead QRS area sum performed similarly. Taking T-wave areas into account did not improve the results. QRS area sum from two most informative leads (located in the upper and lower right precordium) also separated the LVH group from controls (61.1 ± 23.5 vs 27.8 ± 6.5 μV s, respectively; P<0.00001). This 2-lead QRS area sum showed 90% sensitivity with 100% specificity for LVH detection and maintained high correlation to indexed left ventricular mass (r=0.732; P<0.001). In conclusion, the BSPM QRS area sum compared to 12-lead QRS area sum does not substantially improve LVH assessment. The 2-lead QRS area sum may improve ECG QRS area-based LVH assessment.

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Acknowledgements

This work was supported by grants from the Finnish Foundation for Cardiovascular Research and the Aarne Koskelo Foundation.

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Authors and Affiliations

  1. Division of Cardiology, Helsinki University Central Hospital, Helsinki, Finland

    L Oikarinen, M Viitasalo, M Kaartinen, J Rossinen, I Tierala, H Hänninen, M S Nieminen & L Toivonen

  2. BioMag Laboratory, Helsinki University, Central Hospital, Helsinki, Finland

    L Oikarinen, M Karvonen, P Takala, I Tierala, H Hänninen & T Katila

  3. Laboratory of Biomedical Engineering, Helsinki University of Technology, Helsinki, Finland

    M Karvonen, P Takala & T Katila

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  1. L Oikarinen
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  2. M Karvonen
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  3. M Viitasalo
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  4. P Takala
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  10. M S Nieminen
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  11. L Toivonen
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Correspondence to L Oikarinen.

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Oikarinen, L., Karvonen, M., Viitasalo, M. et al. Electrocardiographic assessment of left ventricular hypertrophy with time–voltage QRS and QRST-wave areas. J Hum Hypertens 18, 33–40 (2004). https://doi.org/10.1038/sj.jhh.1001631

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