A&D TM-2421 - Medaval

Description:

The A&D TM-2421 is an ambulatory blood pressure monitor. Although its blood pressure measurement technology has been evaluated, it is not possible to base a determination on its accuracy from this research. Blood pressure measurements are taken from the upper arm. It is intended for ambulatory blood pressure monitoring. This device is now obsolete.

Assessment:

The technology used in the A&D TM-2421, to measure blood pressure, has been assessed, in general and specific populations, according to non-standard protocols.

Recommendations:

	Accuracy Assessment	Recommendation	Basis
BP	Medaval	None	When an evaluation is carried out using a non-standard protocol, no inference can be made on accuracy based on a standard protocol.

Validation Publications:

Imai Y, Sasaki S, Minami N, Munakata M, Hashimoto J, Sakuma H, Sakuma M, Watanabe N, Imai K, Sekino H, et al. The accuracy and performance of the A&D TM 2421, a new ambulatory blood pressure monitoring device based on the cuff-oscillometric method and the Korotkoff sound technique. Am J Hypertens. 1992 Oct;5(10):719-26. PMID: 1418835.

Ad Hoc protocol General population

O'Sullivan JJ, Derrick G, Griggs PE, Wren C. Validation of the Takeda 2421 ambulatory blood pressure monitor in children. J Med Eng Technol. 1998 May-Jun;22(3):101-5. PMID: 9667035.

BHS:1993 In auscultatory mode (Note: Various positions and agegroups used; Mixed results)

BHS:1993 In oscillometric mode (Note: Various positions and agegroups used; Mixed results)

Keavney B, Bird R, Caiazza A, Casadei B, Conway J. Measurement of blood pressure using the auscultatory and oscillometric methods in the same cuff deflation: validation and field trial of the A&D TM2421 monitor. J Hum Hypertens. 2000 Sep;14(9):573-9. PMID: 10980589.

Ad Hoc protocol General population