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

Artículo de Publicación Periódica:
Photoplethysmographic characterization of vascular tone mediated changes in arterial pressure: an observational study

dc.contributor.author	Tusman, Gerardo
dc.contributor.author	Acosta, Cecilia M.
dc.contributor.author	Pulletz, Sven
dc.contributor.author	Böhm, Stephan H.
dc.contributor.author	Scandurra, Adriana
dc.contributor.author	Martínez Arca, Jorge
dc.contributor.author	Madorno, Matías
dc.contributor.author	Suárez-Sipmann, Fernando
dc.date.accessioned	2020-06-24T18:29:29Z
dc.date.available	2020-06-24T18:29:29Z
dc.date.issued	2019-10
dc.description.abstract	"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."	en
dc.identifier.issn	1387-1307
dc.identifier.uri	http://ri.itba.edu.ar/handle/123456789/2221
dc.language.iso	en	en
dc.relation	info:eu-repo/semantics/altIdentifier/doi/10.1007/s10877-018-0235-z
dc.subject	PRESION ARTERIAL	es
dc.subject	FOTOPLETISMOGRAFIA	es
dc.subject	FLUJO SANGUINEO	es
dc.title	Photoplethysmographic characterization of vascular tone mediated changes in arterial pressure: an observational study	en
dc.type	Artículos de Publicaciones Periódicas	es
dc.type	info:eu-repo/semantics/acceptedVersion
dspace.entity.type	Artículo de Publicación Periódica
itba.description.filiation	Fil: Tusman, Gerardo. Hospital Privado de Comunidad; Argentina.
itba.description.filiation	Fil: Acosta, Cecilia M. Hospital Privado de Comunidad; Argentina.
itba.description.filiation	Fil: Pulletz, Sven. Klinikum Osnabrueck; Alemania.
itba.description.filiation	Fil: Böhm, Stephan H. Universitätsmedizin Rostock; Alemania.
itba.description.filiation	Fil: Scandurra, Adriana. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina.
itba.description.filiation	Fil: Martínez Arca, Jorge. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina.
itba.description.filiation	Fil: Madorno, Matías. Instituto Tecnológico de Buenos Aires; Argentina.
itba.description.filiation	Fil: Suárez-Sipmann, Fernando. Akademiska sjukhuset i Uppsala; Suecia.
itba.description.filiation	Fil: Suárez-Sipmann, Fernando. Centro de Investigación Biomédica en Red de Enfermedades Respiratorias; España.
itba.description.filiation	Fil: Suárez-Sipmann, Fernando. Hospital Universitario de La Princesa; España.