Method of optical self-mixing for pulse wave transit time in comparison with other methods and correlation with blood pressure

2004 ◽  
Author(s):  
Kalju Meigas ◽  
Jaanus Lass ◽  
Rain Kattai ◽  
Deniss Karai ◽  
Juri Kaik
Keyword(s):  
Blood Pressure ◽  
Transit Time ◽  
Pulse Wave ◽  
Pulse Wave Transit Time

Design of sleeveless blood pressure measuring instrument based on pulse wave transit time

2013 ◽  
Vol 26 (12) ◽  
pp. 1080-1085 ◽  
Author(s):  
Zhenbao Ling ◽  
Ming Zhang ◽  
Wenji Xiong ◽  
Zhibang Chen ◽  
Ziyu Guo ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Transit Time ◽  
Pulse Wave ◽  
Measuring Instrument ◽  
Pulse Wave Transit Time

A Study on Estimating the Blood Pressure by Using the Pulse Wave Transit Time in Shock Patients Who Received Vasopressor Drugs

2009 ◽  
Vol 24 (1) ◽  
pp. 11 ◽  
Author(s):  
Gyeong Nam Park ◽  
Won Young Sung ◽  
Sang Won Seo ◽  
Sung Youp Hong ◽  
Young Mo Yang ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Transit Time ◽  
Pulse Wave ◽  
Pulse Wave Transit Time

scholarly journals The key role of pulse wave transit time to predict blood pressure variation during anaesthesia induction

2021 ◽  
Vol 49 (11) ◽  
pp. 030006052110583
Author(s):  
Guoqiang Hu ◽  
Minjuan Chen ◽  
Xiaodan Wang ◽  
Lingyang Chen ◽  
Weijian Wang
Keyword(s):  
Blood Pressure ◽  
Systolic Blood Pressure ◽  
Transit Time ◽  
Blood Pressure Variability ◽  
Pulse Wave ◽  
Elective Surgery ◽  
Linear Regression Analysis ◽  
Anaesthesia Induction ◽  
Pulse Wave Transit Time ◽  
Observational Cohort

Objective To establish the relationship between pulse wave transit time (PWTT) before anaesthesia induction and blood pressure variability (BPV) during anaesthesia induction. Methods This prospective observational cohort study enrolled consecutive patients that underwent elective surgery. Invasive arterial pressure, electrocardiography, pulse oximetry, heart rate and bispectral index were monitored. PWTT and BPV were measured with special software. Anaesthesia was induced with propofol, sufentanil and rocuronium. Results A total of 54 patients were included in this study. There was no correlation between BPV and the dose of propofol, sufentanil and rocuronium during anaesthesia induction. Bivariate linear regression analysis demonstrated that PWTT ( r = –0.54), age ( r = 0.34) and systolic blood pressure ( r = 0.31) significantly correlated with systolic blood pressure variability (SBPV). Only PWTT ( r = –0.38) was significantly correlated with diastolic blood pressure variability (DBPV). Patients were stratified into high PWTT and low PWTT groups according to the mean PWTT value (96.8 ± 17.2 ms). Compared with the high PWTT group, the SBPV of the low PWTT group increased significantly by 3.4%. The DBPV of the low PWTT group increased significantly by 2.1% compared with the high PWTT group. Conclusions PWTT, assessed before anaesthesia induction, may be an effective predictor of haemodynamic fluctuations during anaesthesia induction.

MECHANISM AFFECTING RELATIONSHIP BETWEEN PULSE WAVE TRANSIT TIME AND BLOOD PRESSURE IN ISOFLURANE ANESTHETIZED DOGS

1998 ◽  
Vol 86 (Supplement) ◽  
pp. 222S ◽  
Author(s):  
R. OCHIAI ◽  
T. YAMADA ◽  
J. TAKEDA ◽  
Y. SUGO ◽  
T. SOMA ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Transit Time ◽  
Pulse Wave ◽  
Pulse Wave Transit Time ◽  
Anesthetized Dogs
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