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Diagnostic electrocardiographic dyad criteria of emphysema in left ventricular hypertrophy
BACKGROUND: The electrocardiographic diagnostic dyad of emphysema, namely a combination of the frontal vertical P-vector and a narrow QRS duration, can serve as a quasidiagnostic marker for emphysema, with specificity close to 100%. We postulated that the presence of left ventricular hypertrophy in...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Dove Medical Press
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3842216/ https://www.ncbi.nlm.nih.gov/pubmed/24293995 http://dx.doi.org/10.2147/COPD.S50680 |
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author | Lanjewar, Swapnil S Chhabra, Lovely Chaubey, Vinod K Joshi, Saurabh Kulkarni, Ganesh Kothagundla, Chandrasekhar Kaul, Sudesh Spodick, David H |
author_facet | Lanjewar, Swapnil S Chhabra, Lovely Chaubey, Vinod K Joshi, Saurabh Kulkarni, Ganesh Kothagundla, Chandrasekhar Kaul, Sudesh Spodick, David H |
author_sort | Lanjewar, Swapnil S |
collection | PubMed |
description | BACKGROUND: The electrocardiographic diagnostic dyad of emphysema, namely a combination of the frontal vertical P-vector and a narrow QRS duration, can serve as a quasidiagnostic marker for emphysema, with specificity close to 100%. We postulated that the presence of left ventricular hypertrophy in emphysema may affect the sensitivity of this electrocardiographic criterion given that left ventricular hypertrophy generates prominent left ventricular forces and may increase the QRS duration. METHODS: We reviewed the electrocardiograms and echocardiograms for 73 patients with emphysema. The patients were divided into two groups based on the presence or absence of echocardiographic evidence of left ventricular hypertrophy. The P-vector, QRS duration, and forced expiratory volume in one second (FEV(1)) were computed and compared between the two subgroups. RESULTS: There was no statistically significant difference in qualitative lung function (FEV(1)) between the subgroups. There was no statistically significant difference in mean P-vector between the subgroups. The mean QRS duration was significantly longer in patients with left ventricular hypertrophy as compared with those without left ventricular hypertrophy. CONCLUSION: The presence of left ventricular hypertrophy may not affect the sensitivity of the P-vector verticalization when used as a lone criterion for diagnosing emphysema. However, the presence of left ventricular hypertrophy may significantly reduce the sensitivity of the electrocardiographic diagnostic dyad in emphysema, as it causes a widening of the QRS duration. |
format | Online Article Text |
id | pubmed-3842216 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Dove Medical Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-38422162013-11-29 Diagnostic electrocardiographic dyad criteria of emphysema in left ventricular hypertrophy Lanjewar, Swapnil S Chhabra, Lovely Chaubey, Vinod K Joshi, Saurabh Kulkarni, Ganesh Kothagundla, Chandrasekhar Kaul, Sudesh Spodick, David H Int J Chron Obstruct Pulmon Dis Original Research BACKGROUND: The electrocardiographic diagnostic dyad of emphysema, namely a combination of the frontal vertical P-vector and a narrow QRS duration, can serve as a quasidiagnostic marker for emphysema, with specificity close to 100%. We postulated that the presence of left ventricular hypertrophy in emphysema may affect the sensitivity of this electrocardiographic criterion given that left ventricular hypertrophy generates prominent left ventricular forces and may increase the QRS duration. METHODS: We reviewed the electrocardiograms and echocardiograms for 73 patients with emphysema. The patients were divided into two groups based on the presence or absence of echocardiographic evidence of left ventricular hypertrophy. The P-vector, QRS duration, and forced expiratory volume in one second (FEV(1)) were computed and compared between the two subgroups. RESULTS: There was no statistically significant difference in qualitative lung function (FEV(1)) between the subgroups. There was no statistically significant difference in mean P-vector between the subgroups. The mean QRS duration was significantly longer in patients with left ventricular hypertrophy as compared with those without left ventricular hypertrophy. CONCLUSION: The presence of left ventricular hypertrophy may not affect the sensitivity of the P-vector verticalization when used as a lone criterion for diagnosing emphysema. However, the presence of left ventricular hypertrophy may significantly reduce the sensitivity of the electrocardiographic diagnostic dyad in emphysema, as it causes a widening of the QRS duration. Dove Medical Press 2013 2013-11-22 /pmc/articles/PMC3842216/ /pubmed/24293995 http://dx.doi.org/10.2147/COPD.S50680 Text en © 2013 Lanjewar et al. This work is published by Dove Medical Press Limited, and licensed under Creative Commons Attribution – Non Commercial (unported, v3.0) License The full terms of the License are available at http://creativecommons.org/licenses/by-nc/3.0/. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. |
spellingShingle | Original Research Lanjewar, Swapnil S Chhabra, Lovely Chaubey, Vinod K Joshi, Saurabh Kulkarni, Ganesh Kothagundla, Chandrasekhar Kaul, Sudesh Spodick, David H Diagnostic electrocardiographic dyad criteria of emphysema in left ventricular hypertrophy |
title | Diagnostic electrocardiographic dyad criteria of emphysema in left ventricular hypertrophy |
title_full | Diagnostic electrocardiographic dyad criteria of emphysema in left ventricular hypertrophy |
title_fullStr | Diagnostic electrocardiographic dyad criteria of emphysema in left ventricular hypertrophy |
title_full_unstemmed | Diagnostic electrocardiographic dyad criteria of emphysema in left ventricular hypertrophy |
title_short | Diagnostic electrocardiographic dyad criteria of emphysema in left ventricular hypertrophy |
title_sort | diagnostic electrocardiographic dyad criteria of emphysema in left ventricular hypertrophy |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3842216/ https://www.ncbi.nlm.nih.gov/pubmed/24293995 http://dx.doi.org/10.2147/COPD.S50680 |
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