Clinical accuracy of a low cost portable blood pressure device in pregnancy and pre-eclampsia: the Nissei DS-400.
Hypertensive disorders of pregnancy cause significant maternal morbidity and mortality worldwide, particularly in developing countries. This study evaluated the accuracy of the Nissei DS-400, a low cost blood pressure (BP) device, in pregnancy according to the British Hypertension Society protocol. Forty-five pregnant women (15 with pre-eclampsia), were recruited from a large teaching hospital. Nine sequential same-arm BP measurements were taken from each woman by trained observers, alternating between mercury sphygmomanometry and the device. The Nissei DS-400 achieved the highest accuracy grade (A/A) in all subjects (n = 45) and in pregnancy alone (n = 30). The mean difference ± standard deviation between the standard and the device in pregnancy were -1.0 ± 5.1 mmHg and -1.1 ± 5.0 mmHg for systolic and diastolic BP, respectively, and -2.6 ± 5.9 mmHg and -3.4 ± 5.8 mmHg in all subjects. The Nissei-DS 400 can be recommended for clinical use in pregnancy and has potential as a good screening tool for pre-eclampsia in low resource settings.
Medical Research and Device Validation Consultant, Validate Global, Kimberley, South Africa and Division of Women's Health, King's College London, UK.
Annemarie
A
de Greeff
Professor of Obstetrics, Validate Global, Kimberley, South Africa and Division of Women's Health, King's College London, UK andrew.shennan@kcl.ac.uk.
Andrew H
AH
Shennan
D000046:Academic Medical Centers; D000328:Adult; D001794:Blood Pressure; D001795:Blood Pressure Determination / Q000295:instrumentation*; D003906:Developing Countries; D005260:Female; D006801:Humans; D008427:Maternal Health Services; D019095:Point-of-Care Systems; D011204:Poverty Areas; D011225:Pre-Eclampsia / Q000175:diagnosis* / Q000503:physiopathology; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000295:instrumentation*; D015203:Reproducibility of Results
Blood pressure device; British Hypertension Society; accuracy; low resource setting; low-cost; oscillometry; pre-eclampsia; pregnancy