000 | 02771 am a22003133u 4500 | ||
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042 | _adc | ||
100 | 1 | 0 |
_aBui Tan, V. _eauthor _92633 |
700 | 1 | 0 |
_aPicone, Dean S. _eauthor _92634 |
700 | 1 | 0 |
_aSchultz, Martin G. _eauthor _92635 |
700 | 1 | 0 |
_aArmstrong, Matthew K. _eauthor _92636 |
700 | 1 | 0 |
_aPeng, Xiaoqing _eauthor _92637 |
700 | 1 | 0 |
_aBlack, J. Andrew _eauthor _92638 |
700 | 1 | 0 |
_aDwyer, Nathan _eauthor _92639 |
700 | 1 | 0 |
_aRoberts-Thomson, Philip _eauthor _92640 |
700 | 1 | 0 |
_aAdams, Heath _eauthor _92641 |
700 | 1 | 0 |
_aHughes, Alun D. _eauthor _92642 |
700 | 1 | 0 |
_aSharman, James E. _eauthor _92643 |
245 | 0 | 0 | _aComparison between cuff-based and invasive systolic blood pressure amplification |
260 | _c2022-10-01. | ||
500 | _a/pmc/articles/PMC7614121/ | ||
500 | _a/pubmed/36052526 | ||
520 | _aAccurate measurement of central blood pressure (BP) using upper arm cuff-based methods is associated with several factors, including determining the level of systolic BP (SBP) amplification. This study aimed to determine the agreement between cuff-based and invasively measured SBP amplification. Patients undergoing coronary angiography had invasive SBP amplification (brachial SBP - central SBP) measured simultaneously with cuff-based SBP amplification using a commercially available central BP device (device 1: Sphygmocor Xcel; n = 171, 70% men, 60 ± 10 years) and a now superseded model of a central BP device (device 2: Uscom BP+; n = 52, 83% men, 62 ± 10 years). Mean difference (±2SD, limits of agreement) between cuff-based and invasive SBP amplification was 4 mmHg (−12, +20 mmHg, P < 0.001) for device 1 and −2 mmHg (−14, +10 mmHg, P = 0.10) for device 2. Both devices systematically overestimated SBP amplification at lower levels and underestimated at higher levels of invasive SBP amplification, but with stronger bias for device 1 (r = −0.68 vs. r = −0.52; Z = 2.72; P = 0.008). Concordance of cuff-based and invasive SBP amplification across quartiles of invasive SBP amplification was low, particularly in the lowest and highest quartiles. The root mean square errors from regression between cuff-based central SBP and brachial SBP were significantly lower (indicating less variability) than from invasive regression models (P < 0.001). Irrespective of the difference from invasive measurements, cuff-based estimates of SBP amplification showed evidence of proportional systematic bias and had less individual variability. These observations could provide insights on how to improve the performance of cuff-based central BP. | ||
540 | _a | ||
546 | _aen | ||
690 | _aArticle | ||
655 | 7 |
_aText _2local |
|
786 | 0 | _nJ Hypertens | |
856 | 4 | 1 |
_uhttp://dx.doi.org/10.1097/HJH.0000000000003228 _zConnect to this object online. |
999 |
_c2202 _d2202 |