Pulse transit time-estimated blood pressure: a comparison of beat-to-beat and intermittent measurement

Pulse transit time (PTT), which refers to the travel time between two arterial sites within the same cardiac cycle, has been developed as a novel cuffless form of continuous blood pressure (BP) monitoring. The aim of this study was to investigate differences in BP parameters, including BP variabilit...

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Bibliographic Details
Published in:Hypertension research 2022-06, Vol.45 (6), p.1001-1007
Main Authors: Hoshide, Satoshi, Yoshihisa, Akiomi, Tsuchida, Fumihiro, Mizuno, Hiroyuki, Teragawa, Hiroki, Kasai, Takatoshi, Koito, Hitoshi, Ando, Shin-Ichi, Watanabe, Yoshihiko, Takeishi, Yasuchika, Kario, Kazuomi
Format: Article
Language:English
Subjects:
Aged
Blood pressure
Blood Pressure - physiology
Blood Pressure Determination
Cardiovascular system
Heart rate
Humans
Hypertension
Middle Aged
Pressure measurement
Pulse Wave Analysis
Sleep Apnea Syndromes
Systole
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Summary:Pulse transit time (PTT), which refers to the travel time between two arterial sites within the same cardiac cycle, has been developed as a novel cuffless form of continuous blood pressure (BP) monitoring. The aim of this study was to investigate differences in BP parameters, including BP variability, between those assessed by beat-to-beat PTT-estimated BP (eBP ) and those assessed by intermittent PTT-estimated BP at fixed time intervals (eBP ) in patients suspected of having sleep disordered breathing (SDB). In 330 patients with SDB (average age, 66.8 ± 11.9 years; 3% oxygen desaturation index [ODI], 21.0 ± 15.0/h) from 8 institutes, PTT-estimated BP was continuously recorded during the nighttime. The average systolic eBP , maximum systolic and diastolic eBP , standard deviation (SD) of systolic and diastolic eBP , and coefficient variation (CV) of systolic and diastolic eBP were higher than the respective values of eBP (all P 
ISSN:0916-9636
1348-4214
DOI:10.1038/s41440-022-00899-z