Piezoelectric Sensor for the Monitoring of Arterial Pulse Wave: Detection of Arrhythmia Occurring in PAC/PVC Patients

Guo, Cheng-Yan; Wang, Kuan-Jen; Hsieh, Tung-Li

doi:10.3390/s21206915

Cited by 13 publications

(8 citation statements)

References 31 publications

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“…A critical prerequisite to determine valid PTT is to detect and deliver a reliable PW morphology. Previous studies with piezo-based sensors have been able to detect reliable PW's amongst healthy volunteers [18,19], volunteers with arrythmias [20],and hypertensive volunteers [13]. In a clinical setting, Clemente et al, also demonstrated a reliable beat-to-beat PW detection rate in a small cohort of ICU patients [21].…”

Section: Prior Pes/pec Researchmentioning

confidence: 97%

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

Nordine¹,

Pille²,

Kraemer³

et al. 2023

Preprint

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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.

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Section: Prior Pes/pec Researchmentioning

confidence: 97%

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

Nordine¹,

Pille²,

Kraemer³

et al. 2023

Preprint

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“…In this research, the window size of the dynamic threshold calculation is set to be the same as the sampling rate, which can have an excellent dynamic adaptation to detect regular or irregular pulse waves. In our previous study [45], the window size could be set to half the sampling rate for patients with arrhythmia. The gain can adjust the dynamic threshold level, and we set it 1.1 times in this study.…”

Section: Pulse Wave Signal Processingmentioning

confidence: 99%

Assessment of a Calibration-Free Method of Cuffless Blood Pressure Measurement: A Pilot Study

Guo¹,

Chang²,

Wang³

et al. 2023

IEEE J. Transl. Eng. Health Med.

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This study proposes a low-cost, high-sensitivity sensor of beat-to-beat local pulse wave velocity (PWV), to be used in a cuffless blood pressure monitor (BPM). Objective: We design an adaptive algorithm to detect the feature of the pulse wave, making it possible for two sensors to measure the local PWV in the radial artery at a short distance. Unlike the cuffless BPM that needs to use a regression model for calibration. Method: We encapsulate the piezoelectric sensor material in a cavity and design an analog front-end circuit. This study used color ultrasound imaging equipment to measure radial arterial parameters, including the diameter and wall thickness, to aid the estimation of blood pressure (BP) using the Moens-Korteweg (MK) equation of hemodynamics. Results: We compared the blood pressure estimated by the MK equation with the reference BP measured using an aneroid sphygmomanometer in a test group of 32 people, resulting in a mean difference of systolic BP of -0.63 mmHg, and a standard deviation of ±5.14 mmHg, a mean difference of mean arterial pressure (MAP) of 0.97 mmHg, with a standard deviation of ±3.54 mmHg, and a mean difference of diastolic BP of -1.14 mmHg, with a standard deviation of ±4.08 mmHg. This study has verified its compliance with ISO 81060-2. Conclusions: A new type of wearable continuous calibration-free BPM can replace the situation that requires the use of traditional ambulatory BPM and reduce patient discomfort. Clinical impact: In this study can provide long-term continuous blood pressure monitoring in the hospital.

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“…In previous studies, we developed a piezoelectric sensor and algorithm [16] that can be used for PWV detection. Fig.…”

Section: A Local Pwv Measurementmentioning

confidence: 99%

Combining Local PWV and Quantified Arterial Changes for Calibration-Free Cuffless Blood Pressure Estimation: A Clinical Validation

Guo¹,

Huang

Chang³

et al. 2023

IEEE Sensors J.

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This study proposes a novel calibration-free cuffless blood pressure monitor (BPM). Unlike the cuffless BPM that requires timing correction with the traditional BPM, the calibration-free cuffless BPM can directly estimate the arterial blood pressure based on the hemodynamics mathematical model. Method: Our proposed device integrates a pair of piezoelectric ceramics as pressure sensors to sense the pressure wave in the radial artery. It calculates the local pulse wave velocity (PWV) with our waveform detection algorithm of our proposed. A photoplethysmogram (PPG) probe is set between the pair of pressure wave sensors. This PPG probe is used to monitor the radial artery's PPG intensity ratio (PIR). We design PPG signal processing algorithms to quantitative the PIR. Results: We recruited 129 participants for the blood pressure monitoring experiment. Compared with the reference sphygmomanometer, the error mean ± standard deviations (SD) systolic blood pressure (SBP) was 2.1±3.4, and correlation r-value was 0.97. diastolic blood pressure (DBP) was 0.8±4.2, and correlation r-value was 0.90, p < 0.05 is taken as statistically significant. Conclusions: A new type of wearable continuous calibration-free BPM can replace the situation that requires the use of traditional ambulatory BPM and reduce patient discomfort. Our proposed for blood pressure measurement passed all ANSI/AAMI/ISO 81060-2:20181_5.2.4.1.2 Data analysis Criterion 1 & 2 standard requirements. Index Terms-blood pressure monitor, separated by commas. photople-thysmogram, pulse wave velocity, systolic blood pressure, photoplethysmogram intensity ratio. I. INTRODUCTIONcuffless BPM is a BPM without an occluding cuff [1]. The difference between cuffless BPM and traditional BPM is that it does not need to pressurize the patient's arteries, reducing

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Piezoelectric Sensor for the Monitoring of Arterial Pulse Wave: Detection of Arrhythmia Occurring in PAC/PVC Patients

Cited by 13 publications

References 31 publications

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

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

Assessment of a Calibration-Free Method of Cuffless Blood Pressure Measurement: A Pilot Study

Combining Local PWV and Quantified Arterial Changes for Calibration-Free Cuffless Blood Pressure Estimation: A Clinical Validation

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