ACCURACY OF THE TAKEDA TM-2420 AMBULATORY BLOOD PRESSURE MONITOR |
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| Authors: | A E Russell A L Tonkin L M H Wing R M Hassam R J McRitchie P E Aylward R B Minson A J C Bune M J West J P Chalmers |
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| Institution: | Department of Medicine, Flinders Medical Centre, Bedford Park, South Australia. |
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| Abstract: | 1. The accuracy of blood pressure measurement with the Takeda TM-2420 ambulatory blood pressure monitor and the TM-2020 data recorder have been assessed by comparison with simultaneous measurements taken using auscultation and direct femoral artery measurements. 2. Systolic blood pressure was underestimated by the TM-2420 by a mean of 10 mmHg (s.d. = 6, 95% confidence interval (CI) = -13 to -7) over the range of pressures measured by auscultation. It was underestimated by 23 mmHg (s.d. = 12, 95% CI = -28 to -18) compared with direct femoral artery measurements. 3. Diastolic pressure measurements were similar to those obtained by auscultation. When compared with direct femoral artery recordings, diastolic pressure was overestimated by about 5 mmHg (s.d. = 4, 95% CI = 3.4-6.6), which is consistent with indirect readings, taken with a 'standard' cuff (inflatable bladder 23 cm X 12 cm). 4. The TM-2420/2020 is thus suitable for ambulatory measurements of blood pressure when diastolic pressure is the criterion of interest. |
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| Keywords: | ambulatory blood pressure determination indirect sphygmomanometry |
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