Validation of automated oscillometric sphygmomanometer (HDBPM) for arterial pressure measurement during haemodialysis
- 124 Downloads
An HDBPM oscillometric sphygmomanometer used for the automatic measurement of arterial blood pressure is evaluated according to the ANSI/AAMI SP10-1992 standard. The accuracy of the HDBPM is ascertained by comparing it against the standard Riva-Rocci ascultatory method. Following the ascultatory method, two independent observers use the HDBPM devise to simultaneously measure the arterial blood pressure in 92 subjects of varying ages and having different blood pressures and arm sizes. High agreement is found when comparing the observers' pressure determinations (within 10 mmHg for 100% of observations). Correlation between the average of two ascultatory determinations and the HDBPM is high both for the systolic (r=0.98) and diastolic (r=0.94) pressures. The mean of the differences between the pressures measured by the observers and the HDBPM device are 0.2 mmHg (systolic) and −0.4 mmHg (diastolic). The percentages of readings within 10 mmHg between those taken by the observers and those taken by the HDBPM are 88% (systolic) and 97% (diastolic). These results largely satisfy current requirements.
KeywordsBlood pressure Device accuracy Monitoring Artificial kidney AAMI standard BHS protocol
Unable to display preview. Download preview PDF.
- Altman, D. G., andBland, J. M. (1986): ‘Statistical methods for assessing agreement between two methods of clinical measurement’,The Lancet,8, pp. 307–310Google Scholar
- American National Standard for Electronic or Automatic Sphygmomanometers (1993): ANSI/AAMI SP10-1992. Arlington, VA: Association for the Advancement of Medical InstrumentationGoogle Scholar
- Drzewiecki, G. M. (1994): ‘Theory of oscillometric maximum and the systolic and diastolic detection ratios’,Ann. Biomd. Eng., pp. 22–88Google Scholar
- Henrich, W. L. (1986): ‘Hemodynamic instability during haemodialysis’,Kidney Int.,30, pp. 605–612Google Scholar
- Association for the Advancement of Medical Instrumentation (1992): ‘American national standard for electronic or automated sphygmomanometers’. Washington DC ANSI/AAMI, SP10-1992Google Scholar
- Kirkendall, W. M., Feinleib, M., Freis, W. D., andMark, A. L. (1981): ‘Recommendations for human blood pressure determination by sphygmomanometers’,Stroke,12, pp. 555A-564AGoogle Scholar
- O'Brien, E., Petrie, J., Littler, W. A., De Swiet, M., Padfield, P. L., O'Mally, K., Jamieson, M., Altman, D., Bland, M., andAtkins, N. (1990): ‘The British Hypertension Society Protocol for the evaluation of automated and semi-automated blood pressure measuring devices with special reference to ambulatory systems’,J. Hypertens.,8, pp. 607–619Google Scholar
- O'Brien, E., Petrie, J., Littler, W. A., De Swiet, M., Padfield, P. L., O'Mally, K., Jamieson, M., Altman, D., Bland, M., and Atkins, N. (1993): ‘The British Hypertension Society Protocol for the evaluation of blood pressure measuring devices’,J. Hypertens.,11, suppl. 2, pp. S43-S63Google Scholar
- O'Brien, E., andAtkins, N. (1994): ‘A comparison of the British Hypertension Society and Association for the Advancement of Medical Instrumentation protocols for validating blood pressure measuring devices: can the two be reconciled?’,J. Hypertens.,12, pp. 1089–1094Google Scholar