TY - JOUR
T1 - Nexfin Noninvasive Continuous Blood Pressure Validated Against Riva-Rocci/Korotkoff
AU - Schattenkerk, DWE
AU - van Lieshout, JJ
AU - van den Meiracker, Ton
AU - Wesseling, KR
AU - Blanc, S
AU - Wieling, W
AU - van Montfrans, GA
AU - Settels, JJ
AU - Wesseling, KH
AU - Westerhof, BE
PY - 2009
Y1 - 2009
N2 - BACKGROUND The Finapres methodology offers continuous measurement of blood pressure (BP) in a noninvasive manner. The latest development using this methodology is the Nexfin monitor. The present study evaluated the accuracy of Nexfin noninvasive arterial pressure (NAP) compared with auscultatory BP measurements (Riva-Rocci/Korotkoff, RRK). METHODS In supine subjects NAP was compared to RRK, performed by two observers using an electronic stethoscope with double earpieces. Per subject, three NAP-RRK differences were determined for systolic and diastolic BP, and bias and precision of differences were expressed as median (25th, 75th percentiles). Within-subject precision was defined as the (25th, 75th percentiles) after removing the average individual difference. RESULTS A total of 312 data sets of NAP and RRK for systolic and diastolic BP from 104 subjects (aged 18-95 years, 54 males) were compared. RRK systolic BP was 129 (115,150), and diastolic BP was 80 (72,89), NAP-RRK differences were 5.4 (-1.7, 11.0) mm Hg and -2.5 (-7.6, 2.3) mm Hg for systolic and diastolic BP, respectively; within-subject precisions were (-2.2, 2.3) and (-1.6, 1.5) mm Hg, respectively. CONCLUSION Nexfin provides accurate measurement of BP with good within-subject precision when compared to RRK.
AB - BACKGROUND The Finapres methodology offers continuous measurement of blood pressure (BP) in a noninvasive manner. The latest development using this methodology is the Nexfin monitor. The present study evaluated the accuracy of Nexfin noninvasive arterial pressure (NAP) compared with auscultatory BP measurements (Riva-Rocci/Korotkoff, RRK). METHODS In supine subjects NAP was compared to RRK, performed by two observers using an electronic stethoscope with double earpieces. Per subject, three NAP-RRK differences were determined for systolic and diastolic BP, and bias and precision of differences were expressed as median (25th, 75th percentiles). Within-subject precision was defined as the (25th, 75th percentiles) after removing the average individual difference. RESULTS A total of 312 data sets of NAP and RRK for systolic and diastolic BP from 104 subjects (aged 18-95 years, 54 males) were compared. RRK systolic BP was 129 (115,150), and diastolic BP was 80 (72,89), NAP-RRK differences were 5.4 (-1.7, 11.0) mm Hg and -2.5 (-7.6, 2.3) mm Hg for systolic and diastolic BP, respectively; within-subject precisions were (-2.2, 2.3) and (-1.6, 1.5) mm Hg, respectively. CONCLUSION Nexfin provides accurate measurement of BP with good within-subject precision when compared to RRK.
U2 - 10.1038/ajh.2008.368
DO - 10.1038/ajh.2008.368
M3 - Article
C2 - 19180062
SN - 0895-7061
VL - 22
SP - 378
EP - 383
JO - American Journal of Hypertension
JF - American Journal of Hypertension
IS - 4
ER -