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Digital thermal monitoring techniques to assess vascular reactivity following finger and brachial occlusions
Digital thermal monitoring (DTM) is an alternative, noninvasive, methodology to evaluate endothelial function using temperature change on finger as a surrogate measure of the magnitude of vascular reactivity index (VRI). A most recent modification to the technique includes the application of occlusi...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8030097/ http://dx.doi.org/10.1111/jch.14115 |
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author | Heath, Melanie Gourley, Drew Naghavi, Morteza Klies, Stanley Tanaka, Hirofumi |
author_facet | Heath, Melanie Gourley, Drew Naghavi, Morteza Klies, Stanley Tanaka, Hirofumi |
author_sort | Heath, Melanie |
collection | PubMed |
description | Digital thermal monitoring (DTM) is an alternative, noninvasive, methodology to evaluate endothelial function using temperature change on finger as a surrogate measure of the magnitude of vascular reactivity index (VRI). A most recent modification to the technique includes the application of occlusion cuff at the base of a finger. We evaluated the validity of DTM compared with the standard flow‐mediated dilation (FMD) protocol. Thirty‐eight (22 males; 38 ± 15 years) participants were studied. Occlusion cuff was placed over the right antecubital fossa or at the base of the right index finger. Temperature monitors were placed on bilateral index fingers to assess change in temperature throughout 5‐min occlusion and recovery phases. VRI values obtained with the finger occlusion (1.58 ± 0.29 AU) were not significantly different from VRI measured with the brachial artery occlusion (1.55 ± 0.26 AU; p = .47), and the agreement of VRI values was confirmed in the Bland‐Altman plot with a mean difference of −0.03 ± 0.34 (95% confidence interval: −0.15 to 0.09). Shear rate(AUCI) was significantly correlated with VRI obtained from brachial occlusion (r = .34) and finger occlusion VRI (r = .54; all p < .05). Moreover, brachial FMD was significantly correlated with brachial occlusion VRI (r = .69; p < .05) and finger occlusion VRI (r = .53; p < .05). Therefore, finger‐based VRI may be a valid and novel alternative measure of endothelial function that is more suitable than the standard FMD or hyperemic shear rate for the assessment of endothelial function in the routine clinical setting. |
format | Online Article Text |
id | pubmed-8030097 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-80300972021-12-16 Digital thermal monitoring techniques to assess vascular reactivity following finger and brachial occlusions Heath, Melanie Gourley, Drew Naghavi, Morteza Klies, Stanley Tanaka, Hirofumi J Clin Hypertens (Greenwich) Vascular Reactivity Digital thermal monitoring (DTM) is an alternative, noninvasive, methodology to evaluate endothelial function using temperature change on finger as a surrogate measure of the magnitude of vascular reactivity index (VRI). A most recent modification to the technique includes the application of occlusion cuff at the base of a finger. We evaluated the validity of DTM compared with the standard flow‐mediated dilation (FMD) protocol. Thirty‐eight (22 males; 38 ± 15 years) participants were studied. Occlusion cuff was placed over the right antecubital fossa or at the base of the right index finger. Temperature monitors were placed on bilateral index fingers to assess change in temperature throughout 5‐min occlusion and recovery phases. VRI values obtained with the finger occlusion (1.58 ± 0.29 AU) were not significantly different from VRI measured with the brachial artery occlusion (1.55 ± 0.26 AU; p = .47), and the agreement of VRI values was confirmed in the Bland‐Altman plot with a mean difference of −0.03 ± 0.34 (95% confidence interval: −0.15 to 0.09). Shear rate(AUCI) was significantly correlated with VRI obtained from brachial occlusion (r = .34) and finger occlusion VRI (r = .54; all p < .05). Moreover, brachial FMD was significantly correlated with brachial occlusion VRI (r = .69; p < .05) and finger occlusion VRI (r = .53; p < .05). Therefore, finger‐based VRI may be a valid and novel alternative measure of endothelial function that is more suitable than the standard FMD or hyperemic shear rate for the assessment of endothelial function in the routine clinical setting. John Wiley and Sons Inc. 2020-12-07 /pmc/articles/PMC8030097/ http://dx.doi.org/10.1111/jch.14115 Text en © 2020 The Authors. The Journal of Clinical Hypertension published by Wiley Periodicals LLC. https://creativecommons.org/licenses/by-nc/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ (https://creativecommons.org/licenses/by-nc/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes. |
spellingShingle | Vascular Reactivity Heath, Melanie Gourley, Drew Naghavi, Morteza Klies, Stanley Tanaka, Hirofumi Digital thermal monitoring techniques to assess vascular reactivity following finger and brachial occlusions |
title | Digital thermal monitoring techniques to assess vascular reactivity following finger and brachial occlusions |
title_full | Digital thermal monitoring techniques to assess vascular reactivity following finger and brachial occlusions |
title_fullStr | Digital thermal monitoring techniques to assess vascular reactivity following finger and brachial occlusions |
title_full_unstemmed | Digital thermal monitoring techniques to assess vascular reactivity following finger and brachial occlusions |
title_short | Digital thermal monitoring techniques to assess vascular reactivity following finger and brachial occlusions |
title_sort | digital thermal monitoring techniques to assess vascular reactivity following finger and brachial occlusions |
topic | Vascular Reactivity |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8030097/ http://dx.doi.org/10.1111/jch.14115 |
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