Accuracy assessment of a novel blood pressure measurement device in a South African adult population

Abstract

The Tensoval duo control device uses a novel combination of auscultatory and oscillometric technology to measure blood pressure. We assessed the accuracy of this device in a South African adult population according to the International Protocol of the European Society of Hypertension. Ethical approval was obtained and 33 participants were recruited from Kimberley Hospital Complex (South Africa). Trained observers took sequential same arm blood pressure measurements from each participant, alternating between mercury sphygmomanometery and the device. The Tensoval duo control passed all the phases of the protocol and achieved a mean difference ± SD of -3.2 ± 7.2 and 2.0 ± 6.0 mmHg for systolic and diastolic pressures, respectively. This study confirms the accuracy and recommendation for clinical use of the Tensoval duo control device in adults. Accuracy in special patient groups is yet to be assessed, but this novel technology could be particularly valuable in those with vascular disease.