Accuracy of inflationary versus deflationary oscillometry in pregnancy and preeclampsia: OMRON-MIT versus OMRON-M7. 2009

Annemarie de Greeff, and Zara Beg, and Zahra Gangji, and Edwina Dorney, and Andrew H Shennan
Maternal and Fetal Research Unit, King's College London and Division of Reproduction and Endocrinology, St Thomas' Hospital, London, UK.

OBJECTIVE To assess the accuracy of the OMRON-MIT (inflationary) and OMRON-M7 (deflationary) devices for measuring blood pressure in a pregnant population, including women with preeclampsia, according to the British Hypertension Society protocol. METHODS Forty-five pregnant women, including 15 with preeclampsia, were recruited at a large teaching hospital. Nine sequential same arm measurements were taken from each patient alternating between the test device and mercury sphygmomanometry. Both devices were assessed in the same women. Data were analysed according to the British Hypertension Society protocol. RESULTS The OMRON-MIT achieved an A/A grade in both pregnancy and preeclampsia with an overall mean difference (SD) of -1.3 (5.6) mmHg and 0.4 (5.6) mmHg for systolic and diastolic pressures, respectively. The OMRON-M7 achieved an A/A grade in pregnancy and a B/B grade in preeclampsia with an overall mean difference (SD) of -5.3 (6.6) mmHg and -3.5 (6.9) mmHg. CONCLUSIONS Both the OMRON-MIT and the OMRON-M7 can be recommended for use in pregnancy and preeclampsia. Inflationary oscillometry (OMRON-MIT) was more accurate in preeclampsia.

UI MeSH Term Description Entries
D009991 Oscillometry The measurement of frequency or oscillation changes. Oscillometries
D011225 Pre-Eclampsia A complication of PREGNANCY, characterized by a complex of symptoms including maternal HYPERTENSION and PROTEINURIA with or without pathological EDEMA. Symptoms may range between mild and severe. Pre-eclampsia usually occurs after the 20th week of gestation, but may develop before this time in the presence of trophoblastic disease. Toxemias, Pregnancy,EPH Complex,EPH Gestosis,EPH Toxemias,Edema-Proteinuria-Hypertension Gestosis,Gestosis, EPH,Hypertension-Edema-Proteinuria Gestosis,Preeclampsia,Preeclampsia Eclampsia 1,Pregnancy Toxemias,Proteinuria-Edema-Hypertension Gestosis,Toxemia Of Pregnancy,1, Preeclampsia Eclampsia,1s, Preeclampsia Eclampsia,EPH Toxemia,Eclampsia 1, Preeclampsia,Eclampsia 1s, Preeclampsia,Edema Proteinuria Hypertension Gestosis,Gestosis, Edema-Proteinuria-Hypertension,Gestosis, Hypertension-Edema-Proteinuria,Gestosis, Proteinuria-Edema-Hypertension,Hypertension Edema Proteinuria Gestosis,Of Pregnancies, Toxemia,Of Pregnancy, Toxemia,Pre Eclampsia,Preeclampsia Eclampsia 1s,Pregnancies, Toxemia Of,Pregnancy Toxemia,Pregnancy, Toxemia Of,Proteinuria Edema Hypertension Gestosis,Toxemia Of Pregnancies,Toxemia, EPH,Toxemia, Pregnancy,Toxemias, EPH
D011247 Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH. Gestation,Pregnancies
D001795 Blood Pressure Determination Techniques used for measuring BLOOD PRESSURE. Blood Pressure Determinations,Determination, Blood Pressure
D005260 Female Females
D006113 United Kingdom Country in northwestern Europe including Great Britain and the northern one-sixth of the island of Ireland, located between the North Sea and north Atlantic Ocean. The capital is London. Great Britain,Isle of Man
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D015588 Observer Variation The failure by the observer to measure or identify a phenomenon accurately, which results in an error. Sources for this may be due to the observer's missing an abnormality, or to faulty technique resulting in incorrect test measurement, or to misinterpretation of the data. Two varieties are inter-observer variation (the amount observers vary from one another when reporting on the same material) and intra-observer variation (the amount one observer varies between observations when reporting more than once on the same material). Bias, Observer,Interobserver Variation,Intraobserver Variation,Observer Bias,Inter-Observer Variability,Inter-Observer Variation,Interobserver Variability,Intra-Observer Variability,Intra-Observer Variation,Intraobserver Variability,Inter Observer Variability,Inter Observer Variation,Inter-Observer Variabilities,Inter-Observer Variations,Interobserver Variabilities,Interobserver Variations,Intra Observer Variability,Intra Observer Variation,Intra-Observer Variabilities,Intra-Observer Variations,Intraobserver Variabilities,Intraobserver Variations,Observer Variations,Variabilities, Inter-Observer,Variabilities, Interobserver,Variabilities, Intra-Observer,Variabilities, Intraobserver,Variability, Inter-Observer,Variability, Interobserver,Variability, Intra-Observer,Variability, Intraobserver,Variation, Inter-Observer,Variation, Interobserver,Variation, Intra-Observer,Variation, Intraobserver,Variation, Observer,Variations, Inter-Observer,Variations, Interobserver,Variations, Intra-Observer,Variations, Intraobserver,Variations, Observer

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