TY - JOUR
T1 - Measurement accuracy of a stand-alone oscillometric central blood pressure monitor
T2 - A validation report for microlife WatchBP office central
AU - Cheng, Hao Min
AU - Sung, Shih Hsien
AU - Shih, Yuan Ta
AU - Chuang, Shao Yuan
AU - Yu, Wen Chung
AU - Chen, Chen Huan
N1 - Funding Information:
1The Joanna Briggs Institute, Faculty of Health Sciences, university of adelaide, adelaide, australia; 2department of Medical research and Education, Taipei Veterans general Hospital, Taipei, Taiwan; 3department of Medicine, Taipei Veterans general Hospital, Taipei, Taiwan; 4cardiovascular research center, national Yang-Ming university, Taipei, Taiwan; 5department of Medicine, national Yang-Ming university, Taipei, Taiwan; 6Institute of Public Health and community Medicine research center, national Yang-Ming university, Taipei, Taiwan; 7department of Biomedical Engineering, chung Yuan christian university, chung-Li, Taiwan; 8division of Preventive Medicine and Health Service, research Institute of Population Health Sciences, national Health research Institutes, Miaoli, Taiwan.
PY - 2013/1
Y1 - 2013/1
N2 - Background The superiority of prognostic value of blood pressure (BP) measured at central aorta (CBP) over conventional brachial BP measured by cuff-based BP monitors has reignited the development of new noninvasive techniques for estimating CBP. The present study validated the accuracy of CBP measured by a newly developed stand-alone CBP monitor. Methods The CBP monitor provided readings of brachial systolic BP (SBP), brachial diastolic BP (DBP), central SBP, and central pulse pressure (PP). Brachial PP and central DBP were calculated from the relevant readings. The accuracy of the brachial and central SBP, PP, and DBP was validated against the simultaneously recorded invasively measured central aortic SBP, PP, and DBP, according to the invasive standard requirements for the noninvasive brachial BP monitors from the Association for the Advancement of Medical Instrumentation (AAMI) in 85 subjects (255 measurements; age range, 30-93 years). Results The mean differences of cuff BP with reference to the invasively measured central SBP, PP, and DBP were-2.6±9.0,-8.6±11.2, and 6.1±7.0mm Hg, respectively, with the former two being obviously underestimated at high CBP and overestimated at low CBP. In contrast, the corresponding differences for the central SBP, PP, and DBP measured by the CBP monitor were-0.6±5.5,-0.4±7.0, and-0.2±6.5mm Hg, respectively, without obvious systematic bias. The distribution of measurement errors for central SBP, PP, and DBP surpassed the AAMI criteria.Conclusion Central SBP, PP, and DBP can be measured accurately by a stand-alone automatic BP monitor.
AB - Background The superiority of prognostic value of blood pressure (BP) measured at central aorta (CBP) over conventional brachial BP measured by cuff-based BP monitors has reignited the development of new noninvasive techniques for estimating CBP. The present study validated the accuracy of CBP measured by a newly developed stand-alone CBP monitor. Methods The CBP monitor provided readings of brachial systolic BP (SBP), brachial diastolic BP (DBP), central SBP, and central pulse pressure (PP). Brachial PP and central DBP were calculated from the relevant readings. The accuracy of the brachial and central SBP, PP, and DBP was validated against the simultaneously recorded invasively measured central aortic SBP, PP, and DBP, according to the invasive standard requirements for the noninvasive brachial BP monitors from the Association for the Advancement of Medical Instrumentation (AAMI) in 85 subjects (255 measurements; age range, 30-93 years). Results The mean differences of cuff BP with reference to the invasively measured central SBP, PP, and DBP were-2.6±9.0,-8.6±11.2, and 6.1±7.0mm Hg, respectively, with the former two being obviously underestimated at high CBP and overestimated at low CBP. In contrast, the corresponding differences for the central SBP, PP, and DBP measured by the CBP monitor were-0.6±5.5,-0.4±7.0, and-0.2±6.5mm Hg, respectively, without obvious systematic bias. The distribution of measurement errors for central SBP, PP, and DBP surpassed the AAMI criteria.Conclusion Central SBP, PP, and DBP can be measured accurately by a stand-alone automatic BP monitor.
KW - blood pressure
KW - central pulse pressure
KW - hypertension
KW - oscillometric signals
KW - pressure wave reflection
KW - pulse volume plethysmography
KW - pulse wave analysis
UR - http://www.scopus.com/inward/record.url?scp=84876589759&partnerID=8YFLogxK
U2 - 10.1093/ajh/hps021
DO - 10.1093/ajh/hps021
M3 - Article
C2 - 23382326
AN - SCOPUS:84876589759
SN - 0895-7061
VL - 26
SP - 42
EP - 50
JO - American Journal of Hypertension
JF - American Journal of Hypertension
IS - 1
ER -