| Zugriffsnummer | 21135 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | Automatic blood pressure measurements: the oscillometric waveform shape is a potential contributor to the difference between auscultatory and oscillometric blood pressure |
| Autor(in); Institution |
Amoore, John; Department of Medical Physics, Royal Infirmary of Edinburgh, Edinburgh, UK
Lemesre, Yann; Department of Biomedical Engineering, ESIL, Université de la Méditerranée, Aix-Marseille II, FRANCE
Murray, Ian; Department of Medical Physics, Royal Infirmary of Edinburgh, Edinburgh, UK
Vacher, Emilie; Department of Biomedical Engineering, ESIL, Université de la Méditerranée, Aix-Marseille II, FRANCE
Mieke, Stephan; 8.1, Medizinische Messtechnik, PTB-Berlin
King, Susan; Regional Medical Physics Department, Freeman Hospital, University of Newcastle, Newcastle upon Tyne, UK
Smith, Fiona; Regional Medical Physics Department, Freeman Hospital, University of Newcastle, Newcastle upon Tyne, UK
Murray, Alan; Regional Medical Physics Department, Freeman Hospital, University of Newcastle, Newcastle upon Tyne, UK
|
| Quelle/Jahr | Journal of Hypertension: 26 (2008), 1, 35 - 43 |
| ISSN | 0263-6352 (PRINT) ; 1473-5598 (ONLINE) |
| DOI | |
| Verlag | London: Lippincott Williams & Wilkins |
| Freie Schlagworte | oscillometric blood pressure monitors ; simulators ; oscillometric waveform |
| Zusammenfassung | Objective: To explore the differences between oscillometric and auscultatory measurements. Method: From a simulator evaluation of a non-invasive blood pressure (NIBP) device regenerating 242 oscillometric blood pressure waveforms from 124 subjects, 10 waveforms were selected based on the differences between the NIBP (oscillometric) and auscultatory pressure measurements. Two waveforms were selected for each of five criteria: systolic over and underestimation; diastolic over and underestimation; and close agreement for both systolic and diastolic pressures. The 10 waveforms were presented to seven different devices and the oscillometric-auscultatory pressure differences were compared between devices and with the oscillometric waveform shapes. Results: Consistent patterns of waveform-dependent over and underestimation of systolic and diastolic pressures were shown for all seven devices. The mean and standard deviation, for all devices, of oscillometric-auscultatory pressure differences were: for the systolic overestimated waveforms, 36 ± 28/-6 ± 3 and 23 ± 2/-1 ± 3 mmHg (systolic/diastolic differences); for systolic underestimated waveforms, -21 ± 5/-4 ± 3 and -11 ± 4/-3 ± 3 mmHg; for diastolic overestimated waveforms, 3 ± 4/12 ± 5 and 17 ± 6/10 ± 2 mmHg; for diastolic underestimated waveforms, 1 ± 4/-22 ± 4 and -9 ± 6/-29 ± 4 mmHg; and for the two waveforms with good agreement, 0 ± 6/0 ± 3 and -2 ± 4/-4 ± 3 mmHg. Waveforms for which devices showed good oscillometric and auscultatory agreement had smooth envelopes with clearly defined peaks, compared with the broader plateau and complex shapes of those waveforms for which devices over or underestimated pressures. Conclusion: By increasing the understanding of the characteristics and limitations of the oscillometric method and the effects of waveform shape on pressure measurements, simulator evaluation should lead to improvements in NIBP devices. |
Zitierung
Amoore, J., Lemesre, Y., Murray, I., Vacher, E., Mieke, S., King, S., Smith, F., & Murray, A. (2008). Automatic blood pressure measurements: the oscillometric waveform shape is a potential contributor to the difference between auscultatory and oscillometric blood pressure. Journal of Hypertension, 26(1), 35–43. https://doi.org/10.1097/hjh.0b013e3282f06ec7