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Measurement of Central Systolic Blood Pressure by Pulse Volume Plethysmography With a Noninvasive Blood Pressure Monitor.
MedLine Citation:
PMID:  22278210     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BackgroundCentral systolic blood pressure (SBP) can be estimated by an oscillometric method developed from a pulse volume plethysmography (PVP) device. The present study applied this novel method to a noninvasive blood pressure monitor (NBPM).MethodsWe enrolled 50 patients (37 men, age range 30-84 years) referred for cardiac catheterization. Invasive right brachial and central aortic pressures (using a dual-sensor pressure catheter), and noninvasive left brachial SBP and diastolic blood pressure (DBP), and PVP waveform (using a customized NBPM) were simultaneously recorded. Central SBP was estimated by analysis of the PVP waveform calibrated to the noninvasive SBP and DBP, using both the original (CSBP-O) and the newly generated (CSBP-N) regression equations. The reproducibility of the invasive central SBP by CSBP-O and CSBP-N was examined using the concordance correlation coefficient.ResultsOverall, the invasive central aortic SBP ranged 86-176 with a mean of 124 ± 21 mm Hg. The mean differences between the estimated and the invasive central SBP were -1.3 ± 6.7 mm Hg for CSBP-O and 0.0 ± 6.2 mm Hg for CSBP-N, respectively. The concordance correlation coefficients for CSBP-O and CSBP-N were 0.94 (95% confidence interval (CI): 0.93-0.94) and 0.95 (95% CI: 0.95-0.96), and both were significantly better than that for the noninvasive brachial SBP (0.87, 0.84-0.91) indicated by non-overlapping CIs.ConclusionsThe PVP method for noninvasive estimation of central SBP can be applied to a commonly used NBPM. Whether the NBPM-derived central SBP is superior to the noninvasive brachial SBP in the prediction of cardiovascular risks remains to be investigated.American Journal of Hypertension 2012; doi:10.1038/ajh.2011.259.
Authors:
Shih-Hsien Sung; Hao-Min Cheng; Shao-Yuan Chuang; Yuan-Ta Shih; Kang-Ling Wang; Ying-Hwa Chen; Shing-Jong Lin; Wen-Chung Yu; Chen-Huan Chen
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-1-26
Journal Detail:
Title:  American journal of hypertension     Volume:  -     ISSN:  1941-7225     ISO Abbreviation:  -     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-1-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8803676     Medline TA:  Am J Hypertens     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
1] Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan [2] Department of Medicine, National Yang-Ming University, Taipei, Taiwan [3] Department of Public Health, National Yang-Ming University, Taipei, Taiwan.
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