Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Intraoperative Beat-to-Beat Pulse Transit Time (PTT) Monitoring via Non-invasive Piezoelectric/Piezocapacitive Peripheral Sensors Can Predict Changes in Invasively Acquired Blood Pressure in High-Risk Surgical Patients

M Nordine
,
M Pille
,
J Kraemer
,
C Berger
ORCID logo ,
P Brandhorst
,
P Kaeferstein
,
R Kopetsch
,
N Wessel
ORCID logo ,
R Trauzeddel
,
S Treskatsch
* ORCID logo
Version 1 : Received: 16 February 2023 / Approved: 20 February 2023 / Online: 20 February 2023 (09:43:32 CET)

A peer-reviewed article of this Preprint also exists.

Nordine, M.; Pille, M.; Kraemer, J.; Berger, C.; Brandhorst, P.; Kaeferstein, P.; Kopetsch, R.; Wessel, N.; Trauzeddel, R.F.; Treskatsch, S. Intraoperative Beat-to-Beat Pulse Transit Time (PTT) Monitoring via Non-Invasive Piezoelectric/Piezocapacitive Peripheral Sensors Can Predict Changes in Invasively Acquired Blood Pressure in High-Risk Surgical Patients. Sensors 2023, 23, 3304. Nordine, M.; Pille, M.; Kraemer, J.; Berger, C.; Brandhorst, P.; Kaeferstein, P.; Kopetsch, R.; Wessel, N.; Trauzeddel, R.F.; Treskatsch, S. Intraoperative Beat-to-Beat Pulse Transit Time (PTT) Monitoring via Non-Invasive Piezoelectric/Piezocapacitive Peripheral Sensors Can Predict Changes in Invasively Acquired Blood Pressure in High-Risk Surgical Patients. Sensors 2023, 23, 3304.

Abstract

Abstract: Background: Non-invasive acquistion of beat-to-beat pulse transit time (PTT) via piezoelectric/piezocapacitive sensors (PES/PCS) may expand perioperative hemodynamic monitoring. This study evaluated the ability for PTT via PES/PCS to correlate with systolic, diastolic, and mean invasive blood pressure (SBPIBP, DBPIBP, and MAPIBP) and to detect SBPIBP fluctuations. Methods: PES/PCS and IBP measurements were performed in 20 patients undergoing abdominal, urological, and cardiac surgery. A Pearson’s correlation analysis (r) between 1/PTT and IBP was performed. The predictive ability of 1/PTT with changes in SBPIBP was determined by area under the curve (reported as AUC, sensitivity, specificity). Results: Significant correlations between 1/PTT and SBPIBP were found for PES (r=0.64) and PCS (r=0.55) (p<0.01), as well as MAPIBP/DBPIBP for PES (r=0.6/0.55) and PCS (r=0.5/0.45) (p<0.05). A 7% decrease in 1/PTTPES predicted a 30% SBPIBP decrease(0.82, 0.76, 0.76), while a 5.6% increase predicted a 30% SBPIBP increase (0.75, 0.7, 0.68). A 6.6% decrease in 1/PTTPCS detected a 30% SBPIBP decrease (0.81, 0.72, 0.8), while a 4.8% 1/PTTPCS increase detected a 30% SBPIBP increase (0.73, 0.64, 0.68). Conclusions: Non-invasive beat-to-beat PTT via PES/PCS demonstrated significant correlations with IBP and detected significant changes in SBPIBP. Thus PES/PCS as a novel sensor technology may augment intraoperative hemodynamic monitoring during major surgery.

Keywords

Piezoelectric; Piezocapacitive; Pulse transit time; Non-invasive hemodynamics; Intraoperative blood pressure; Anesthesiology

Subject

Medicine and Pharmacology, Anesthesiology and Pain Medicine

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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