Agreement between continuous noninvasive finger cuff-derived and invasive arterial blood pressure measurements: Effect of data sampling and data processing
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Agreement between continuous noninvasive finger cuff-derived and invasive arterial blood pressure measurements: Effect of data sampling and data processing. / Flick, Moritz; Matin Mehr, Jasmin; Briesenick, Luisa; Hoppe, Phillip; Kouz, Karim; Vokuhl, Christina; Flotzinger, Doris; Lerche, Katja; Saugel, Bernd.
in: EUR J ANAESTH, Jahrgang 38, Nr. 6, 01.06.2021, S. 616-624.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Agreement between continuous noninvasive finger cuff-derived and invasive arterial blood pressure measurements: Effect of data sampling and data processing
AU - Flick, Moritz
AU - Matin Mehr, Jasmin
AU - Briesenick, Luisa
AU - Hoppe, Phillip
AU - Kouz, Karim
AU - Vokuhl, Christina
AU - Flotzinger, Doris
AU - Lerche, Katja
AU - Saugel, Bernd
N1 - Copyright © 2021 European Society of Anaesthesiology.
PY - 2021/6/1
Y1 - 2021/6/1
N2 - BACKGROUND: The effect of different methods for data sampling and data processing on the results of comparative statistical analyses in method comparison studies of continuous arterial blood pressure (AP) monitoring systems remains unknown.OBJECTIVE: We sought to investigate the effect of different methods for data sampling and data processing on the results of statistical analyses in method comparison studies of continuous AP monitoring systems.DESIGN: Prospective observational study.SETTING: University Medical Center Hamburg-Eppendorf, Hamburg, Germany, from April to October 2019.PATIENTS: 49 patients scheduled for neurosurgery with AP measurement using a radial artery catheter.MAIN OUTCOME MEASURES: We assessed the agreement between continuous noninvasive finger cuff-derived (CNAP Monitor 500; CNSystems Medizintechnik, Graz, Austria) and invasive AP measurements in a prospective method comparison study in patients having neurosurgery using all beat-to-beat AP measurements (Methodall), 10-s averages (Methodavg), one 30-min period of 10-s averages (Method30), Method30 with additional offset subtraction (Method30off), and 10 30-s periods without (Methodiso) or with (Methodiso-zero) application of the zero zone. The agreement was analysed using Bland-Altman and error grid analysis.RESULTS: For mean AP, the mean of the differences (95% limits of agreement) was 9.0 (-12.9 to 30.9) mmHg for Methodall, 9.2 (-12.5 to 30.9) mmHg for Methodavg, 6.5 (-9.3 to 22.2) mmHg for Method30, 0.5 (-9.5 to 10.5) mmHg for Method30off, 4.9 (-6.0 to 15.7) mmHg for Methodiso, and 3.4 (-5.9 to 12.7) mmHg for Methodiso-zero. Similar trends were found for systolic and diastolic AP. Results of error grid analysis were also influenced by using different methods for data sampling and data processing.CONCLUSION: Data sampling and data processing substantially impact the results of comparative statistics in method comparison studies of continuous AP monitoring systems. Depending on the method used for data sampling and data processing, the performance of an AP test method may be considered clinically acceptable or unacceptable.
AB - BACKGROUND: The effect of different methods for data sampling and data processing on the results of comparative statistical analyses in method comparison studies of continuous arterial blood pressure (AP) monitoring systems remains unknown.OBJECTIVE: We sought to investigate the effect of different methods for data sampling and data processing on the results of statistical analyses in method comparison studies of continuous AP monitoring systems.DESIGN: Prospective observational study.SETTING: University Medical Center Hamburg-Eppendorf, Hamburg, Germany, from April to October 2019.PATIENTS: 49 patients scheduled for neurosurgery with AP measurement using a radial artery catheter.MAIN OUTCOME MEASURES: We assessed the agreement between continuous noninvasive finger cuff-derived (CNAP Monitor 500; CNSystems Medizintechnik, Graz, Austria) and invasive AP measurements in a prospective method comparison study in patients having neurosurgery using all beat-to-beat AP measurements (Methodall), 10-s averages (Methodavg), one 30-min period of 10-s averages (Method30), Method30 with additional offset subtraction (Method30off), and 10 30-s periods without (Methodiso) or with (Methodiso-zero) application of the zero zone. The agreement was analysed using Bland-Altman and error grid analysis.RESULTS: For mean AP, the mean of the differences (95% limits of agreement) was 9.0 (-12.9 to 30.9) mmHg for Methodall, 9.2 (-12.5 to 30.9) mmHg for Methodavg, 6.5 (-9.3 to 22.2) mmHg for Method30, 0.5 (-9.5 to 10.5) mmHg for Method30off, 4.9 (-6.0 to 15.7) mmHg for Methodiso, and 3.4 (-5.9 to 12.7) mmHg for Methodiso-zero. Similar trends were found for systolic and diastolic AP. Results of error grid analysis were also influenced by using different methods for data sampling and data processing.CONCLUSION: Data sampling and data processing substantially impact the results of comparative statistics in method comparison studies of continuous AP monitoring systems. Depending on the method used for data sampling and data processing, the performance of an AP test method may be considered clinically acceptable or unacceptable.
U2 - 10.1097/EJA.0000000000001469
DO - 10.1097/EJA.0000000000001469
M3 - SCORING: Journal article
C2 - 33653983
VL - 38
SP - 616
EP - 624
JO - EUR J ANAESTH
JF - EUR J ANAESTH
SN - 0265-0215
IS - 6
ER -
