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Correlation Between Quantitative Uptake of (99m)TC-DPD and Echocardiographic Parameters in Cardiac ATTR: A Novel Follow-Up Strategy
Aims: There has been a paradigm shift in diagnosis of cardiac transthyretin amyloidosis (ATTR) with non-invasive techniques including technetium-99m 3,3-diphosphono-1,2-propanodicarboxylic acid ((99m)Tc-DPD) bone scintigraphy. We evaluated structural and functional biventricular alterations by trans...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8553935/ https://www.ncbi.nlm.nih.gov/pubmed/34722650 http://dx.doi.org/10.3389/fcvm.2021.663929 |
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author | Harapoz, Mehmet Evans, Scott Geenty, Paul Kwok, Fiona Stewart, Graeme Taylor, Mark S. Farlow, David Thomas, Liza |
author_facet | Harapoz, Mehmet Evans, Scott Geenty, Paul Kwok, Fiona Stewart, Graeme Taylor, Mark S. Farlow, David Thomas, Liza |
author_sort | Harapoz, Mehmet |
collection | PubMed |
description | Aims: There has been a paradigm shift in diagnosis of cardiac transthyretin amyloidosis (ATTR) with non-invasive techniques including technetium-99m 3,3-diphosphono-1,2-propanodicarboxylic acid ((99m)Tc-DPD) bone scintigraphy. We evaluated structural and functional biventricular alterations by transthoracic echocardiography (TTE) and determined the correlation with (99m)Tc-DPD tracer uptake in ATTR. Materials and Methods: ATTR patients (wild-type, hereditary or asymptomatic transthyretin [TTR] variant carriers) with (99m)Tc-DPD and TTE were selected; (99m)Tc-DPD uptake was analyzed quantitatively. TTE assessment of left ventricle (LV) and right ventricle (RV) parameters was performed. Results: Forty ATTR patients (wild-type n = 17; hereditary ATTR and TTR variant carriers n = 23; median age 68.8 ± 22 years) were included. TTE parameters displaying good correlation with (99m)Tc-DPD tracer uptake included LV average wall thickness (r = 0.837), LV indexed mass (LVMI; r = 0.802), RV wall thickness (r = 0.610), average e' (r = −0.830), E/e' ratio (r = 0.786), LV global longitudinal strain (GLS; r = 0.714) and RV GLS (r = 0.632; p < 0.001 for all). Hereditary ATTR and TTR variant carriers without cardiac tracer uptake had normal echocardiographic parameters. Receiver operating characteristic curves demonstrated strong diagnostic accuracies for structural (LV wall thickness, LVMI and RV wall thickness; area under the curve (AUC) of 0.96 for all) and functional (LV and RV GLS; AUC of 0.86 and 0.88, respectively) parameters. Conclusion: Good correlations between TTE biventricular structural and functional parameters were demonstrated with quantitative (99m)Tc-DPD uptake. Echocardiography may potentially assume a significant role in longitudinal follow-up for monitoring disease progression and for evaluating treatment response. |
format | Online Article Text |
id | pubmed-8553935 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-85539352021-10-30 Correlation Between Quantitative Uptake of (99m)TC-DPD and Echocardiographic Parameters in Cardiac ATTR: A Novel Follow-Up Strategy Harapoz, Mehmet Evans, Scott Geenty, Paul Kwok, Fiona Stewart, Graeme Taylor, Mark S. Farlow, David Thomas, Liza Front Cardiovasc Med Cardiovascular Medicine Aims: There has been a paradigm shift in diagnosis of cardiac transthyretin amyloidosis (ATTR) with non-invasive techniques including technetium-99m 3,3-diphosphono-1,2-propanodicarboxylic acid ((99m)Tc-DPD) bone scintigraphy. We evaluated structural and functional biventricular alterations by transthoracic echocardiography (TTE) and determined the correlation with (99m)Tc-DPD tracer uptake in ATTR. Materials and Methods: ATTR patients (wild-type, hereditary or asymptomatic transthyretin [TTR] variant carriers) with (99m)Tc-DPD and TTE were selected; (99m)Tc-DPD uptake was analyzed quantitatively. TTE assessment of left ventricle (LV) and right ventricle (RV) parameters was performed. Results: Forty ATTR patients (wild-type n = 17; hereditary ATTR and TTR variant carriers n = 23; median age 68.8 ± 22 years) were included. TTE parameters displaying good correlation with (99m)Tc-DPD tracer uptake included LV average wall thickness (r = 0.837), LV indexed mass (LVMI; r = 0.802), RV wall thickness (r = 0.610), average e' (r = −0.830), E/e' ratio (r = 0.786), LV global longitudinal strain (GLS; r = 0.714) and RV GLS (r = 0.632; p < 0.001 for all). Hereditary ATTR and TTR variant carriers without cardiac tracer uptake had normal echocardiographic parameters. Receiver operating characteristic curves demonstrated strong diagnostic accuracies for structural (LV wall thickness, LVMI and RV wall thickness; area under the curve (AUC) of 0.96 for all) and functional (LV and RV GLS; AUC of 0.86 and 0.88, respectively) parameters. Conclusion: Good correlations between TTE biventricular structural and functional parameters were demonstrated with quantitative (99m)Tc-DPD uptake. Echocardiography may potentially assume a significant role in longitudinal follow-up for monitoring disease progression and for evaluating treatment response. Frontiers Media S.A. 2021-10-15 /pmc/articles/PMC8553935/ /pubmed/34722650 http://dx.doi.org/10.3389/fcvm.2021.663929 Text en Copyright © 2021 Harapoz, Evans, Geenty, Kwok, Stewart, Taylor, Farlow and Thomas. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Cardiovascular Medicine Harapoz, Mehmet Evans, Scott Geenty, Paul Kwok, Fiona Stewart, Graeme Taylor, Mark S. Farlow, David Thomas, Liza Correlation Between Quantitative Uptake of (99m)TC-DPD and Echocardiographic Parameters in Cardiac ATTR: A Novel Follow-Up Strategy |
title | Correlation Between Quantitative Uptake of (99m)TC-DPD and Echocardiographic Parameters in Cardiac ATTR: A Novel Follow-Up Strategy |
title_full | Correlation Between Quantitative Uptake of (99m)TC-DPD and Echocardiographic Parameters in Cardiac ATTR: A Novel Follow-Up Strategy |
title_fullStr | Correlation Between Quantitative Uptake of (99m)TC-DPD and Echocardiographic Parameters in Cardiac ATTR: A Novel Follow-Up Strategy |
title_full_unstemmed | Correlation Between Quantitative Uptake of (99m)TC-DPD and Echocardiographic Parameters in Cardiac ATTR: A Novel Follow-Up Strategy |
title_short | Correlation Between Quantitative Uptake of (99m)TC-DPD and Echocardiographic Parameters in Cardiac ATTR: A Novel Follow-Up Strategy |
title_sort | correlation between quantitative uptake of (99m)tc-dpd and echocardiographic parameters in cardiac attr: a novel follow-up strategy |
topic | Cardiovascular Medicine |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8553935/ https://www.ncbi.nlm.nih.gov/pubmed/34722650 http://dx.doi.org/10.3389/fcvm.2021.663929 |
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