Validation of TM-2655 oscillometric device for blood pressure measurement

Blood Press Monit. 2006 Apr;11(2):87-90. doi: 10.1097/01.mbp.0000200484.49540.12.


Objective: To perform validation for an arm-type oscillometric TM-2655 device (A&D Company Ltd, Tokyo, Japan) for blood pressure measurement according to the British Hypertension Society protocol.

Methods: Eighty-five study participants (33 men and 52 women) were included in the study. Mean age was 52.9+/-15.0 years, systolic blood pressure range was 84-208 mmHg and diastolic blood pressure range was 48-120 mmHg. For each participant, three readings of TM-2655 were compared with sequential auscultatory measurements by two trained independent observers. The observers used a calibrated mercury sphygmomanometer and dual stethoscope. The results were graded according to the British Hypertension Society protocol 1993.

Results: The average difference between mercury sphygmomanometer and TM-2655 readings for systolic blood pressure was -1.0+5.2 mmHg (mean+/-SD) and for diastolic blood pressure -0.9+/-4.7 mmHg. The proportions of values agreeing to within 5, 10 and 15 mmHg were 72.5, 93.7 and 99.6% for systolic blood pressure and 78.8, 96.9 and 100% for diastolic blood pressure between the observers and the device (A/A British Hypertension Society grade).

Conclusions: The TM-2655 device achieved British Hypertension Society grade A/A and therefore can be recommended for blood pressure measurement in an adult population.

Publication types

  • Validation Study

MeSH terms

  • Adult
  • Aged
  • Blood Pressure Determination / instrumentation*
  • Blood Pressure Monitors / standards
  • Female
  • Humans
  • Hypertension / diagnosis
  • Male
  • Middle Aged
  • Observer Variation
  • Oscillometry / instrumentation
  • Sphygmomanometers