Determinants of left ventricular mechanical dyssynchrony in patients submitted to myocardial perfusion imaging: A cardiac CZT study

Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology
Alessia GimelliPaolo Marzullo

Abstract

An interaction between coronary anatomy, myocardial perfusion, and left ventricular (LV) functional parameters in the development of mechanical LV dyssynchrony (LVD) has been suggested. This study examined the correlates of LVD in a large sample size of patients with known or suspected coronary artery disease (CAD) using cadmium-zinc-telluride camera. Six-hundred and fifty-seven consecutive patients who underwent myocardial perfusion imaging (MPI) and coronary angiography were included. Coronary stenosis >70% was considered significant. LV perfusion and functional parameters were computed from MPI images. The presence of significant LVD was evaluated by phase standard deviation and histogram bandwidth. 415/657 (63%) patients had significant CAD. LVD was present in 247 (38%) patients and was associated with the presence of a higher CAD burden (P < .001), more impaired measures of LV perfusion (P < .001), contractile function (P < .001), and larger LV volumes (P < .001). By multivariate analysis, the LV end-systolic volume index (P < .001) and ischemic burden (P < .001) were the strongest predictors of LVD independent of CAD extent and LV systolic dysfunction. LVD is frequent in patients undergoing MPI for suspected or known CAD....Continue Reading

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Citations

Sep 12, 2015·Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology·Chetan D Patel, Anirban Mukherjee
Feb 10, 2018·Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology·Saara SillanmäkiTomi Laitinen
Aug 16, 2017·Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology·Alessia GimelliPaolo Marzullo
Sep 20, 2017·Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology·Kenichi NakajimaHein J Verberne
Sep 16, 2018·Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology·Zhixin Jiang, Weihua Zhou
Aug 26, 2018·Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology·Saara SillanmäkiTomi Laitinen
Oct 10, 2018·Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology·Alejandro Solodky, Nili Zafrir
Aug 21, 2019·Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology·Kenichi NakajimaKoji Maruyama
Sep 2, 2020·Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology·Hanna HämäläinenTomi P Laitinen
Sep 2, 2018·Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology·Wan-Ling LinYen-Wen Wu
Aug 9, 2019·Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology·Marat FudimSalvador Borges-Neto
Sep 3, 2020·Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology·Wael AlJaroudi
Jan 22, 2021·Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology·Riccardo Liga, Alessia Gimelli

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