Photoplethysmographic characterization of vascular tone mediated changes in arterial pressure: an observational study

"To determine whether a classification based on the contour of the photoplethysmography signal (PPGc) can detect changes in systolic arterial blood pressure (SAP) and vascular tone. Episodes of normotension (SAP 90–140 mmHg), hypertension (SAP > 140 mmHg) and hypotension (SAP < 90 mmHg) w...

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Autores principales: Tusman, Gerardo, Acosta, Cecilia M., Pulletz, Sven, Böhm, Stephan H., Scandurra, Adriana, Martínez Arca, Jorge, Madorno, Matías, Suárez-Sipmann, Fernando
Formato: Artículos de Publicaciones Periódicas acceptedVersion
Lenguaje:Inglés
Publicado: 2020
Materias:
PRESION ARTERIAL
FOTOPLETISMOGRAFIA
FLUJO SANGUINEO
Acceso en línea:http://ri.itba.edu.ar/handle/123456789/2221
Aporte de:
Repositorio Institucional Instituto Tecnológico de Buenos Aires (ITBA) de Instituto Tecnológico de Buenos Aires (ITBA)
id I32-R138-123456789-2221
record_format dspace
spelling I32-R138-123456789-22212022-12-07T13:07:00Z Photoplethysmographic characterization of vascular tone mediated changes in arterial pressure: an observational study Tusman, Gerardo Acosta, Cecilia M. Pulletz, Sven Böhm, Stephan H. Scandurra, Adriana Martínez Arca, Jorge Madorno, Matías Suárez-Sipmann, Fernando PRESION ARTERIAL FOTOPLETISMOGRAFIA FLUJO SANGUINEO "To determine whether a classification based on the contour of the photoplethysmography signal (PPGc) can detect changes in systolic arterial blood pressure (SAP) and vascular tone. Episodes of normotension (SAP 90–140 mmHg), hypertension (SAP > 140 mmHg) and hypotension (SAP < 90 mmHg) were analyzed in 15 cardiac surgery patients. SAP and two surrogates of the vascular tone, systemic vascular resistance (SVR) and vascular compliance (Cvasc = stroke volume/pulse pressure) were compared with PPGc. Changes in PPG amplitude (foot-to-peak distance) and dicrotic notch position were used to define 6 classes taking class III as a normal vascular tone with a notch placed between 20 and 50% of the PPG amplitude. Class I-to-II represented vasoconstriction with notch placed > 50% in a small PPG, while class IV-to-VI described vasodilation with a notch placed < 20% in a tall PPG wave. 190 datasets were analyzed including 61 episodes of hypertension [SAP = 159 (151–170) mmHg (median 1st–3rd quartiles)], 84 of normotension, SAP = 124 (113–131) mmHg and 45 of hypotension SAP = 85(80–87) mmHg. SAP were well correlated with SVR (r = 0.78, p < 0.0001) and Cvasc (r = 0.84, p < 0.0001). The PPG-based classification correlated well with SAP (r = − 0.90, p < 0.0001), SVR (r = − 0.72, p < 0.0001) and Cvasc (r = 0.82, p < 0.0001). The PPGc misclassified 7 out of the 190 episodes, presenting good accuracy (98.4% and 97.8%), sensitivity (100% and 94.9%) and specificity (97.9% and 99.2%) for detecting episodes of hypotension and hypertension, respectively. Changes in arterial pressure and vascular tone were closely related to the proposed classification based on PPG waveform." 2020-06-24T18:29:29Z 2020-06-24T18:29:29Z 2019-10 Artículos de Publicaciones Periódicas info:eu-repo/semantics/acceptedVersion 1387-1307 http://ri.itba.edu.ar/handle/123456789/2221 en info:eu-repo/semantics/altIdentifier/doi/10.1007/s10877-018-0235-z application/pdf
institution Instituto Tecnológico de Buenos Aires (ITBA)
institution_str I-32
repository_str R-138
collection Repositorio Institucional Instituto Tecnológico de Buenos Aires (ITBA)
language Inglés
topic PRESION ARTERIAL
FOTOPLETISMOGRAFIA
FLUJO SANGUINEO
spellingShingle PRESION ARTERIAL
FOTOPLETISMOGRAFIA
FLUJO SANGUINEO
Tusman, Gerardo
Acosta, Cecilia M.
Pulletz, Sven
Böhm, Stephan H.
Scandurra, Adriana
Martínez Arca, Jorge
Madorno, Matías
Suárez-Sipmann, Fernando
Photoplethysmographic characterization of vascular tone mediated changes in arterial pressure: an observational study
topic_facet PRESION ARTERIAL
FOTOPLETISMOGRAFIA
FLUJO SANGUINEO
description "To determine whether a classification based on the contour of the photoplethysmography signal (PPGc) can detect changes in systolic arterial blood pressure (SAP) and vascular tone. Episodes of normotension (SAP 90–140 mmHg), hypertension (SAP > 140 mmHg) and hypotension (SAP < 90 mmHg) were analyzed in 15 cardiac surgery patients. SAP and two surrogates of the vascular tone, systemic vascular resistance (SVR) and vascular compliance (Cvasc = stroke volume/pulse pressure) were compared with PPGc. Changes in PPG amplitude (foot-to-peak distance) and dicrotic notch position were used to define 6 classes taking class III as a normal vascular tone with a notch placed between 20 and 50% of the PPG amplitude. Class I-to-II represented vasoconstriction with notch placed > 50% in a small PPG, while class IV-to-VI described vasodilation with a notch placed < 20% in a tall PPG wave. 190 datasets were analyzed including 61 episodes of hypertension [SAP = 159 (151–170) mmHg (median 1st–3rd quartiles)], 84 of normotension, SAP = 124 (113–131) mmHg and 45 of hypotension SAP = 85(80–87) mmHg. SAP were well correlated with SVR (r = 0.78, p < 0.0001) and Cvasc (r = 0.84, p < 0.0001). The PPG-based classification correlated well with SAP (r = − 0.90, p < 0.0001), SVR (r = − 0.72, p < 0.0001) and Cvasc (r = 0.82, p < 0.0001). The PPGc misclassified 7 out of the 190 episodes, presenting good accuracy (98.4% and 97.8%), sensitivity (100% and 94.9%) and specificity (97.9% and 99.2%) for detecting episodes of hypotension and hypertension, respectively. Changes in arterial pressure and vascular tone were closely related to the proposed classification based on PPG waveform."
format Artículos de Publicaciones Periódicas
acceptedVersion
author Tusman, Gerardo
Acosta, Cecilia M.
Pulletz, Sven
Böhm, Stephan H.
Scandurra, Adriana
Martínez Arca, Jorge
Madorno, Matías
Suárez-Sipmann, Fernando
author_facet Tusman, Gerardo
Acosta, Cecilia M.
Pulletz, Sven
Böhm, Stephan H.
Scandurra, Adriana
Martínez Arca, Jorge
Madorno, Matías
Suárez-Sipmann, Fernando
author_sort Tusman, Gerardo
title Photoplethysmographic characterization of vascular tone mediated changes in arterial pressure: an observational study
title_short Photoplethysmographic characterization of vascular tone mediated changes in arterial pressure: an observational study
title_full Photoplethysmographic characterization of vascular tone mediated changes in arterial pressure: an observational study
title_fullStr Photoplethysmographic characterization of vascular tone mediated changes in arterial pressure: an observational study
title_full_unstemmed Photoplethysmographic characterization of vascular tone mediated changes in arterial pressure: an observational study
title_sort photoplethysmographic characterization of vascular tone mediated changes in arterial pressure: an observational study
publishDate 2020
url http://ri.itba.edu.ar/handle/123456789/2221
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