[The new ambulatory non-invasive 24-hour blood pressure monitoring system, Takeda Medical TM 2420. Reliability and practical experiences].
Takeda TM 2420 is an automatic ambulant device for measuring blood pressure which functions by auscultation of the Korokoff sounds. During static conditions, the apparatus was investigated by means of a double stetoscope and a connecting branch with the Hawksley random zero manometer. Where 69 persons were concerned (ages 13-89 years, systolic blood pressures 85-212 mmHg, diastolic blood pressure 44-110 mmHg) a difference in the systolic blood pressure of 1.5 +/- 9.2 mm Hg were found (average +/- standard deviation) and where the diastolic blood pressure was concerned 2.8 +/- 6.3 mm Hg. Statistical comparison with the Hawksley manometer on the contralateral arm in 51 volunteers produced corresponding results. In 24-hour monitoring of 80 persons, useful results were obtained in 74. The proportion of erroneous measurements was acceptable but the apparatus was unsuitable for exercise testing on an ergometer bicycle. The quality of the cuff, the connecting tubing, the carrying strap and computer programmel should be improved but the apparatus was otherwise found to be useful for daily clinical use.
Eidemak
I
I
Centralsygehuset i Naestved, Medicinsk Afdeling.
Høegholm
A
A
Kristensen
K S
KS
Madsen
N H
NH
Nielsen
H S
HS
D000293:Adolescent; D000328:Adult; D000368:Aged; D015924:Blood Pressure Monitors / Q000592:standards; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged