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[Evaluation of automatic sphygmomanometers].

A Slabý1, P Arenberger, M Josífko

  • 1IV. interní katedra fakulty vseobecného lékarstvi, Univerzity Karlovy, Praha.

Sbornik Lekarsky
|September 1, 1989
PubMed
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This study compared an automatic sphygmomanometer (BP 103 N Nippon Colin) with a mercury device. Results showed minor differences, suggesting a need for regression correction in epidemiological studies.

Area of Science:

  • Cardiovascular diagnostics
  • Medical device evaluation
  • Clinical measurement techniques

Context:

  • Evaluating new automatic sphygmomanometers requires rigorous comparison with standard auscultatory methods.
  • A cross-over design was employed to assess the BP 103 N Nippon Colin oscillometric device against a Hawksley random zero mercury sphygmomanometer.
  • Measurements were taken simultaneously in both arms by two observers on 26 subjects.

Purpose:

  • To determine the comparability of blood pressure readings between an automated oscillometric device and a standard mercury sphygmomanometer.
  • To assess the clinical accuracy and reliability of the BP 103 N Nippon Colin device for blood pressure measurement.
  • To establish if observed differences necessitate adjustments for epidemiological research.

Summary:

Related Experiment Videos

  • The oscillometric BP 103 N Nippon Colin device yielded slightly higher mean systolic (0.56 kPa) and diastolic (0.62 kPa) blood pressure values compared to the mercury sphygmomanometer.
  • Statistical analysis indicated that these differences fell within the random variability of blood pressure measurements, rendering them insignificant for single readings.
  • A regression model (B = K. Ac) is proposed for correcting values obtained from the oscillometric device in epidemiological studies.

Impact:

  • Highlights the importance of method comparison in validating new blood pressure monitoring technologies.
  • Provides guidance on potential adjustments needed when using automated devices in large-scale health surveys.
  • Contributes to ensuring accurate and reliable blood pressure data collection in clinical and research settings.