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

Autor: Hoshide S; Division of Cardiovascular Medicine, Jichi Medical University School of Medicine, Tochigi, Japan., Yoshihisa A; Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan.; Department of Clinical Laboratory Sciences, Fukushima Medical University School of Health Sicence, Fukushima, Japan., Tsuchida F; Department of Pulmonary Medicine, Yabuki Hospital, Yamagata, Japan., Mizuno H; Division of Cardiovascular Medicine, Jichi Medical University School of Medicine, Tochigi, Japan., Teragawa H; Department of Cardiovascular Medicine, JR Hiroshima Hospital, Hiroshima, Japan., Kasai T; Cardiovascular Respiratory Sleep Medicine, Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan., Koito H; Department of Internal Medicine, Misugikai Otokoyama Hospital, Kyoto, Japan., Ando SI; Sleep Apnea Center, Kyushu University Hospital, Fukuoka, Japan., Watanabe Y; Department of Internal Medicine, Nippon Dental University Hospital, Tokyo, Japan., Takeishi Y; Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan., Kario K; Division of Cardiovascular Medicine, Jichi Medical University School of Medicine, Tochigi, Japan. kkario@jichi.ac.jp.
Jazyk: angličtina
Zdroj: Hypertension research : official journal of the Japanese Society of Hypertension [Hypertens Res] 2022 Jun; Vol. 45 (6), pp. 1001-1007.
DOI: 10.1038/s41440-022-00899-z
Abstrakt: 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 BTB ) and those assessed by intermittent PTT-estimated BP at fixed time intervals (eBP INT ) 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 BTB , maximum systolic and diastolic eBP BTB , standard deviation (SD) of systolic and diastolic eBP BTB , and coefficient variation (CV) of systolic and diastolic eBP BTB were higher than the respective values of eBP INT (all P < 0.05). Bland-Altman analysis showed a close agreement between eBP BTB and eBP INT in average systolic BP and SD and CV of systolic BP, while there were disagreements in both minimum and maximum values of eBP BTB and eBP INT in patients with high systolic BP (P < 0.05). Although systolic BP variability incrementally increased according to the tertiles of 3%ODI in both eBP BTB and eBP INT (all P < 0.05), there was no difference in this tendency between eBP BTB and eBP INT . In patients with suspected SDB, the difference between eBP BTB and eBP INT was minimal, and there were disagreements regarding both the minimum and maximum BP. However, there were agreements in regard to the index of BP variability between eBP BTB and eBP INT .
(© 2022. The Author(s).)
Databáze: MEDLINE
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