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Análisis de la fotopletismografía para determinación de variaciones en el tono vascular y la presión arterial : Estudio basado en redes neuronales [Photoplethysmography waveform analysis for classification of vascular tone andarterial blood pressure: Study based on neural networks]
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- Echeverria, N. I. (author)
- Univ Nacl Mar del Plata, Fac Ingn, Lab Bioingn, ICYTE CONICET, Mar Del Plata, Buenos Aires, Argentina.
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- Scandurra, A. G. (author)
- Univ Nacl Mar del Plata, Fac Ingn, Lab Bioingn, ICYTE CONICET, Mar Del Plata, Buenos Aires, Argentina.
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- Acosta, C. M. (author)
- Hosp Privado Comun, Dept Anestesiol, Mar Del Plata, Buenos Aires, Argentina.
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Meschino, G. J. (author)
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- Suarez-Sipmann, Fernando (author)
- Uppsala universitet,Klinisk fysiologi,Hedenstiernalaboratoriet,Ctr Invest Biomed Red Enfermedades Resp CIBERES, Madrid, Spain.;Hosp Univ Princesa, Dept Cuidados Crit, Madrid, Spain.
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- Tusman, G. (author)
- Hosp Privado Comun, Dept Anestesiol, Mar Del Plata, Buenos Aires, Argentina.
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Univ Nacl Mar del Plata, Fac Ingn, Lab Bioingn, ICYTE CONICET, Mar Del Plata, Buenos Aires, Argentina Hosp Privado Comun, Dept Anestesiol, Mar Del Plata, Buenos Aires, Argentina. (creator_code:org_t)
- Elsevier BV, 2023
- 2023
- English.
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In: REVISTA ESPANOLA DE ANESTESIOLOGIA Y REANIMACION. - : Elsevier BV. - 0034-9356 .- 2340-3284. ; 70:4, s. 209-217
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- Background: To test whether a Shallow Neural Network (S-NN) can detect and classify vasculartone dependent changes in arterial blood pressure (ABP) by advanced photopletysmographic(PPG) waveform analysis.Methods: PPG and invasive ABP signals were recorded in 26 patients undergoing scheduled general surgery. We studied the occurrence of episodes of hypertension (systolic arterial pressure(SAP) > 140 mmHg), normotension and hypotension (SAP < 90 mmHg). Vascular tone accordingto PPG was classified in two ways: 1) By visual inspection of changes in PPG waveform amplitude and dichrotic notch position; where Classes I-II represent vasoconstriction (notch placed> 50% of PPG amplitude in small amplitude waves), Class III normal vascular tone (notch placedbetween 20-50% of PPG amplitude in normal waves) and Classes IV-V-VI vasodilation (notch <20% of PPG amplitude in large waves). 2) By an automated analysis, using S-NN trained andvalidated system that combines seven PPG derived parameters.Results: The visual assessment was precise in detecting hypotension (sensitivity 91%, specificity86% and accuracy 88%) and hypertension (sensitivity 93%, specificity 88% and accuracy 90%). Normotension presented as a visual Class III (III-III) (median and 1st-3rdquartiles), hypotensionas a Class V (IV-VI) and hypertension as a Class II (I-III); all p < 0.0001. The automated S-NNperformed well in classifying ABP conditions. The percentage of data with correct classificationby S-ANN was 83% for normotension, 94% for hypotension, and 90% for hypertension.Conclusions: Changes in ABP were correctly classified automatically by S-NN analysis of the PPGwaveform contour.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Kardiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cardiac and Cardiovascular Systems (hsv//eng)
Keyword
- Arterial blood pressure
- Photoplethysmography
- Vascular tone
- Arterial compliance
- Neural networks
Publication and Content Type
- ref (subject category)
- art (subject category)
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