Blood pressure measurement by oscillometric and auscultatory methods in normotensive pregnant women

ABSTRACT Objective: to compare blood pressure values obtained by auscultatory and oscillometric methods in different gestational periods, considering cuff width. Method: it is a cross-sectional and quasi-experimental study approved by the Research Ethics Committee. The sample consisted of 108 low-risk pregnant women. Blood pressure measurements were performed in gestational periods of 10-14, 19-22 and 27-30 weeks. Results: The oscillometric device presented values similar to the auscultatory method in systolic blood pressure, but overestimated diastolic blood pressure. Underestimation of blood pressure occurred when using the standard width cuff rather than the correct width cuff in both measuring methods. Conclusion: Verification of brachial circumference and use of adequate cuffs in both methods are indispensable to obtain reliable blood pressure values in pregnant women. We recommend performance of additional studies to evaluate diastolic blood pressure overestimation by the Microlife 3BTO-A.

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A comparison of CAT Doppler and oscillometric Memoprint machines for non-invasive blood pressure measurement in conscious cats

Journal of Feline Medicine and Surgery ◽

10.1016/j.jfms.2004.08.003 ◽

2005 ◽

Vol 7 (3) ◽

pp. 147-152 ◽

Cited By ~ 31

Author(s):

Rosanne E. Jepson ◽

Vivien Hartley ◽

Michael Mendl ◽

Sarah ME Caney ◽

David J Gould

Keyword(s):

Blood Pressure ◽

Systolic Blood Pressure ◽

Diastolic Blood Pressure ◽

Blood Pressure Measurement ◽

Systemic Hypertension ◽

Pressure Measurements ◽

Non Invasive ◽

Measuring Devices ◽

Oscillometric Device ◽

Significant Difference

Indirect blood pressure measurements were compared in 28 conscious cats using Doppler and oscillometric blood pressure-measuring devices. Ten cats were used to compare Doppler measurements between two examiners and 18 cats were used to compare Doppler and oscillometric measurements. The Doppler machine obtained systolic and diastolic blood pressure readings in 100% and 51% of attempts, respectively. With the oscillometric machine, systolic and diastolic blood pressure readings were obtained in 52% of the attempts. With the Doppler, measures of mean systolic blood pressure between two examiners were positively correlated, but there was no correlation for diastolic blood pressure measures. When comparing the results obtained by Doppler and oscillometric machines there was no significant difference between mean systolic blood pressure readings, but the oscillometric machine produced significantly higher estimates of diastolic blood pressure. In both cases, the standard deviations for the oscillometric machine were considerably larger than those for the Doppler machine. The first reading of systolic blood pressure obtained with the Doppler machine was an excellent predictor of the mean of five readings, but this was not so for the oscillometric machine. It took less than 5 min to obtain five readings in 37.5% of cases with the Doppler machine but this was true for only 5% of cases with the oscillometric machine. Two cats with ophthalmological lesions consistent with systemic hypertension were identified. In these two patients, systolic blood pressure measurements were between 200 and 225 mmHg when measured by Doppler, and between 140 and 150 mmHg when measured by the oscillometric machine. This suggests that a lower reference range for normal systolic blood pressure values should be used for the oscillometric device.

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Abstract WMP57: Declining Blood Pressure is Associated with Subcortical Microinfarcts in Older Adults

Stroke ◽

10.1161/str.48.suppl_1.wmp57 ◽

2017 ◽

Vol 48 (suppl_1) ◽

Author(s):

Mekala R Raman ◽

Jonathan Graff-Radford ◽

Scott A Przybelski ◽

Timothy G Lesnick ◽

Michelle M Mielke ◽

...

Keyword(s):

Blood Pressure ◽

Older Adults ◽

Elderly Population ◽

Adult Population ◽

Blood Pressure Measurement ◽

The Elderly ◽

Pressure Measurements ◽

Autopsy Study ◽

Cross Sectional ◽

Blood Pressures

Hypertension is highly prevalent in the elderly population and microinfarcts are the most common vascular brain pathology identified in older adults at autopsy. We investigated the associations between systolic and diastolic blood pressures measured antemortem and the presence of microinfarcts at autopsy. Study subjects (n=302; age range=71-95) were participants in the population-based Mayo Clinic Study of Aging autopsy study, who had blood pressure measurements recorded during life. We investigated both cross-sectional systolic and diastolic blood pressure measurements at the baseline visit and the change in blood pressure (slope). Presence and location (subcortical or cortical) of chronic microinfarcts was abstracted from the autopsy reports. Of the 302 study subjects, 47 (16%) had cerebral microinfarcts, and, of those, 18 (38%) had subcortical microinfarcts and 29 (62%) had only cortical microinfarcts. The baseline blood pressures were not different between subjects with no microinfarcts, subcortical microinfarcts, and only cortical microinfarcts. In a logistic regression model including time between last blood pressure measurement and death, a greater decline in systolic [OR= 1.06 (1.01, 1.11); p=0.02]) and greater decline in diastolic [OR= 1.11 (1.02, 1.20); p=0.01] blood pressures were predictors of the presence of subcortical microinfarcts at autopsy. However, these variables were not associated with the presence of cortical microinfarcts. In conclusion, microinfarcts are common in the older adult population, and most of them are located in the cortex. A greater decline in both systolic and diastolic blood pressures and their association with subcortical microinfarcts, but not with cortical microinfarcts, may have implications for aggressive lowering of blood pressure in the elderly population.

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A Comparison of Casual In-Clinic Blood Pressure Measurements to Standardized Guideline-Concordant Measurements in Severely Obese Individuals

International Journal of Hypertension ◽

10.1155/2015/801709 ◽

2015 ◽

Vol 2015 ◽

pp. 1-5 ◽

Cited By ~ 2

Author(s):

Sana Vahidy ◽

Sumit R. Majumdar ◽

Raj S. Padwal

Keyword(s):

Blood Pressure ◽

Weight Management ◽

Care Program ◽

Pressure Measurements ◽

Clinic Blood Pressure ◽

Cross Sectional ◽

Oscillometric Device ◽

Severely Obese ◽

Sectional Analysis ◽

Bariatric Clinic

Background/Objectives. The objective of this study was to compare casual BP taken in a bariatric clinic to standardized guideline-concordant BP.Subjects/Methods. A cross sectional analysis was performed using baseline data from a weight management trial. Patients were recruited from a Canadian bariatric care program. Standardized BP was performed using a Watch BP oscillometric device. Casual in-clinic BP single readings, taken using a Welch Allyn oscillometric device, were chart-abstracted. Pairedt-tests, Bland-Altman plots, and Pearson’s correlations were used for analysis.Results. Data from 134 patients were analyzed. Mean age was 41.5 ± 8.9 y, mean BMI was 46.8 ± 6.5 kg/m2, and 40 (30%) had prior hypertension. Mean casual in-clinic BP was 128.8 ± 14.1/81.6 ± 9.9 mmHg and mean standardized BP was 133.2 ± 15.0/82.0 ± 10.3 mmHg (difference of −4.3 ± 12.0 for systolic (p<0.0001) and −0.4 ± 10.0 mmHg for diastolic BP (p=0.6)). Pearson’s coefficients were 0.66 (p<0.0001) for SBP and 0.50 (p<0.0001) for DBP. 28.4% of casual versus 26.9% of standardized measurements were ≥140/90 mmHg (p<0.0001).Conclusion. In this bariatric clinic, casual BP was unexpectedly lower than standardized BP. This could potentially lead to the underdiagnosis of hypertension.

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Diagnostic Methods for Pregnancy Hypertension: Significance of Standardized Conditions

International Journal of Technology Assessment in Health Care ◽

10.1017/s0266462300012939 ◽

1992 ◽

Vol 8 (S1) ◽

pp. 72-74 ◽

Cited By ~ 1

Author(s):

Anders Åberg

Keyword(s):

Blood Pressure ◽

Pregnant Women ◽

Diastolic Blood Pressure ◽

Home Monitoring ◽

Upright Position ◽

Diagnostic Methods ◽

Pressure Measurements ◽

Pregnancy Hypertension ◽

Measure Blood Pressure ◽

Risk Of Preeclampsia

AbstractStandardized conditions for blood pressure measurements and strict definitions of systolic and diastolic blood pressure are essential for a consequent management of hypertension during pregnancy. In Sweden, it has been agreed to measure blood pressure with the pregnant women sitting in upright position. Home-monitoring of blood pressure is recommended in women at risk of preeclampsia.

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Development of equations for converting random-zero to automated oscillometric blood pressure values

Wellcome Open Research ◽

10.12688/wellcomeopenres.15407.1 ◽

2019 ◽

Vol 4 ◽

pp. 146

Author(s):

Li Yan ◽

Xiaoxiao Wen ◽

Alan R. Dyer ◽

Haiyan Chen ◽

Long Zhou ◽

...

Keyword(s):

Blood Pressure ◽

Linear Regression ◽

Blood Pressure Measurement ◽

The Other ◽

Pressure Measurements ◽

Age And Gender ◽

Several Variables ◽

Oscillometric Device ◽

And Gender ◽

Over Time

Background: This study aimed to collect data to compare blood pressure values between random-zero sphygmomanometers and automated oscillometric devices and generate equations to convert blood pressure values from one device to the other. Methods: Omron HEM-907, a widely used automated oscillometric device in many epidemiologic surveys and cohort studies, was compared here with random-zero sphygmomanometers. In total, 201 participants aged 40-79 years (37% men) were enrolled and randomly assigned to one of two groups, with blood pressure measurement first taken by automated oscillometric devices or by random-zero sphygmomanometers. The study design enabled comparisons of blood pressure values between random-zero sphygmomanometers and two modes of this automated oscillometric device (automated and manual), and assessment of effects of measurement order on blood pressure values. Results: Among all participants, mean blood pressure levels were the lowest when measured with random-zero sphygmomanometers compared with both modes of automated oscillometric devices. Several variables, including age and gender, were found to contribute to the blood pressure differences between random-zero sphygmomanometers and automated oscillometric devices. Equations were developed using multiple linear regression after taking those variables into account to convert blood pressure values by random-zero sphygmomanometers to automated oscillometric devices. Conclusions: Equations developed in this study could be used to compare blood pressure values between epidemiologic and clinical studies or identify shift of blood pressure distribution over time using different devices for blood pressure measurements.

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THE EFFECT OF HYDROTHERAPY ON THE REDUCTION OF BLOOD PRESSURE IN PREGNANT WOMEN WITH HYPERTENSION AT THE PRIMARY HEALTH CAREASTANAJAPURA CIREBON DISTRICT IN 2019

International Seminar of Gender Equity Maternal and Child Health ◽

10.34305/gemic.v1i1.318 ◽

2021 ◽

Vol 1 (1) ◽

pp. 109-121

Author(s):

Larasyati Sholekha ◽

Entin Jubaedah ◽

Lia Nurcahyani

Keyword(s):

Blood Pressure ◽

Pregnant Women ◽

Diastolic Blood Pressure ◽

Sampling Technique ◽

P Value ◽

Mortality And Morbidity ◽

Bivariate Data ◽

O 43 ◽

Post Test ◽

Quasi Experimental

One of the causes of maternal mortality and morbidity is pregnancy induced hypertension (PIH). One of many hypertension management in pregnancy with non-pharmacological is hydrotherapy, which is soaking the feet using warm water for 20 minutes. This study aims to determine the differences in systolic and diastolic blood pressure in the hydrotherapy group with a temperature of 40o - 43 o compared to temperatures of 37 o - 39 o. The study using Quasi-Experimental non-randomized pre-test and post-test with control design on 22 hypertensive pregnant women using purposive sampling technique. Research instruments included observation sheets, sphygmomanometer, stethoscope, and digital water thermometer. Univariate and bivariate data analysis using the Wilcoxon and Mann-Whitney tests. This study showed difference of systolic blood pressure p value 0,000 and difference of diastolic p value 0,013 (p <0,05), therefore there were differences in systolic and diastolic blood pressure in the hydrotherapy group with a temperature of 40 o - 43 o compared to 37 o - 39 o. Hydrotherapy using temperature of 40 o - 43 o is better to use than temperature of 37 o - 39 o. Midwives can use hydrotherapy as an early treatment alternative for hypertensive pregnant women

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The Mediation Effect of Coping Strategies Between Personality and Blood Pressure in Pregnancy Complicated by Hypertension

10.21203/rs.3.rs-117459/v1 ◽

2020 ◽

Author(s):

Sabrina Chapuis-de-Andrade ◽

Carmen Moret-Tatay ◽

Tatiana Quarti Irigaray ◽

Ivan Carlos Ferreira Antonello ◽

Bartira Ercília Pinheiro da Costa

Keyword(s):

Blood Pressure ◽

Pregnant Women ◽

Coping Strategies ◽

Diastolic Blood Pressure ◽

Five Factor Model ◽

Openness To Experience ◽

Mediation Effect ◽

Cross Sectional ◽

And Coping ◽

In Pregnancy

Abstract Background: Hypertension is a disorder that affects many people and its complications can cause serious damage to health. In pregnancy, it is even more serious with risks both to pregnant women and their fetuses. This study investigated the role played by personality and coping strategies in blood pressure levels during pregnancy. Its specific goal was to study whether coping strategies can mediate the effect of personality in pregnancy complicated by hypertension. Methods: Assessment of a sample of 351 pregnant women, encompassing 192 pregnancies complicated by hypertension. This is a cross-sectional study where personality traits were measured by the Five-Factor Model and coping was evaluated by the Jalowiec´s Coping Inventory. Results: Personality can partially predict systolic and diastolic blood pressure. Openness to experience trait and emotion focused coping correlated with systolic and diastolic blood pressure. Diastolic blood pressure was predicted by openness to experience (β=-.15; p<.05). Systolic blood pressure was also predicted by openness to experience (β =-.14; p<.05). Conclusions: It is suggested to reinforce the development of coping strategies that are more focused on the problem than on emotion, in order to avoid negative effects of emotional coping in blood pressure in pregnancy.

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Trends of blood pressure and heart rate in normal pregnancies: a systematic review and meta-analysis

BMC Medicine ◽

10.1186/s12916-019-1399-1 ◽

2019 ◽

Vol 17 (1) ◽

Cited By ~ 9

Author(s):

Lise Loerup ◽

Rebecca M. Pullon ◽

Jacqueline Birks ◽

Susannah Fleming ◽

Lucy H. Mackillop ◽

...

Keyword(s):

Systematic Review ◽

Blood Pressure ◽

Heart Rate ◽

Systolic Blood Pressure ◽

Pregnant Women ◽

Diastolic Blood Pressure ◽

Meta Analysis ◽

Blood Pressure Measurement ◽

Reference Ranges ◽

Normal Ranges

Abstract Background Current reference ranges for blood pressure and heart rate throughout pregnancy have a poor evidence base. Methods This is a systematic review and meta-analysis. We included studies measuring blood pressure or heart rate from healthy pregnant women within defined gestational periods of 16 weeks or less. We analysed systolic blood pressure, diastolic blood pressure and heart rate by gestational age. We assessed effects of measurement year and method. Results We included 39 studies undertaken in 1967–2017, containing 124,349 systolic measurements from 36,239 women, 124,291 diastolic measurements from 36,181 women and 10,948 heart rate measurements from 8317 women. Mean (95% CI) systolic blood pressure was lowest at 10 weeks gestation, 110.4 (108.5, 112.3) mmHg, rising to 116.0 (113.6, 118.4) mmHg at 40 weeks, mean (95% CI) change 5.6 (4.0, 7.2) mmHg. Mean (95% CI) diastolic blood pressure was lowest at 21 weeks gestation, 65.9 (64.2, 67.7) mmHg; rising to 72.8 (71.0, 74.6) mmHg at 40 weeks, mean (95% CI) change 6.9 (6.2, 7.5) mmHg. Mean (95% CI) heart rate rose from 79.3 (75.5, 83.1) beats/min at 10 weeks to 86.9 (82.2, 91.6) beats/min at 40 weeks gestation, mean (95% CI) change 7.6 (1.8, 13.4) beats/min. Studies using manual measurement reported higher diastolic blood pressures than studies using automated measurement, mean (95 CI) difference 4.9 (0.8, 8.9) mmHg. Diastolic blood pressure increased by 0.26 (95% CI 0.10–0.43) mmHg/year. Including only higher-quality studies had little effect on findings, with heterogeneity remaining high (I2 statistic > 50%). Conclusions Significant gestational blood pressure and heart rate changes occur that should be taken into account when assessing pregnant women. Commonly taught substantial decreases in blood pressure mid-pregnancy were not seen and heart rate increases were lower than previously thought. Manual and automated blood pressure measurement cannot be used interchangeably. Increases in diastolic blood pressure over the last half-century and differences between published studies show contemporary data are required to define current normal ranges. Study registration PROSPERO CRD42014009673

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Assessment of accuracy of mercury sphygmomanometer and automated oscillometric device of blood pressure measurement in population of normal individuals

Asian Journal of Medical Sciences ◽

10.3126/ajms.v9i5.20469 ◽

2018 ◽

Vol 9 (5) ◽

pp. 17-24 ◽

Cited By ~ 3

Author(s):

Ravindra Wadhwani ◽

Nazeem I Siddiqui ◽

Balkishan Sharma

Keyword(s):

Blood Pressure ◽

Linear Trend ◽

Blood Pressure Measurement ◽

Cross Sectional Study ◽

Coefficient Of Determination ◽

Cross Sectional ◽

Oscillometric Device ◽

Normal Individuals ◽

Comparative Accuracy ◽

Mercury Sphygmomanometer

Background: Blood pressure (BP) measurement is the most common investigation performed nearly on all patients’ for diagnosis and treatment of hypertension. Accuracy of the measurement device is crucial for timely diagnosis.However, sphygmomanometer requires medical expertise whereas automated oscillometric device needs only careful observations in measuring BP.Aims and Objectives: The objective of the present study is to determinethe comparative accuracy of mercury sphygmomanometer and automated oscillometric device of measuring BP and the limit of agreement between the two devices.Materials and Methods: A cross-sectional study designed and carried out at MGM Medical College, Indore among 438 normal individuals. Age, weight, height, body mass index, history and BP were recorded. An average of three recording of BP measurement by both the devices was used.Results: Out of a total, 52.3% were male and 47.7% were female. Average SBP (130.78±17.31 mmHg) and DBP (86.96±10.26 mmHg) measured by automated instrument were significantly elevated than SBP (126.32±13.47 mmHg) and DBP (81.70±8.63 mmHg) by mercury sphygmomanometer while the mean differences in SBP and DBP (5.16±4.40 and 5.57±3.30 mmHg) were statistically significant (p=0.000). Hypertension reported in more patients with automated (79.0%) compared to sphygmomanometer (76.0%). Bland-Altman plots indicated a positive linear trend for BP readings between two instruments. Differences were more in SBP reading than DBP within three categories. Measurement of agreement indicated strong statistically significant (p=0.000) mutual agreement between the rate of judging hypertension by two apparatuses. The coefficient of determination for SBP (R2=0.95) and DBP (R2=0.87) were very high when manual readings compared to automated.Conclusion: Present research suggests that BP readings obtained by automated and sphygmomanometer is comparable however as compared to mercury sphygmomanometer ocillometric device gives slightly higher readings of SBP. Looking towards the simplicity of measurement and freedom from environmental toxicity automated ocillometricdevice may be recommended as a primary tool for early detection and management of high BP.Asian Journal of Medical Sciences Vol.9(5) 2018 17-24

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The Relationship Between Serum Ionized Magnesium Concentrations and Diastolic Blood Pressure in Overweight and Obese Adults (P24-040-19)

Current Developments in Nutrition ◽

10.1093/cdn/nzz044.p24-040-19 ◽

2019 ◽

Vol 3 (Supplement_1) ◽

Author(s):

May Cheung ◽

Rosemary DeLuccia ◽

Rohit Ramadoss ◽

Asma Altasan ◽

Stella Volpe ◽

...

Keyword(s):

Blood Pressure ◽

Diastolic Blood Pressure ◽

American Heart Association ◽

American Heart ◽

Blood Pressure Measurement ◽

Heart Association ◽

Cardiometabolic Health ◽

Serum Concentrations ◽

Serum Samples ◽

Oscillometric Device

Abstract Objectives Adequate magnesium (Mg) status has been shown to be associated with improved cardiometabolic health. Magnesium status is commonly assessed by measuring serum concentrations of Mg in clinical settings; however, serum concentrations of ionized Mg (iMg) is a better indicator of bioavailable Mg status. Few researchers have assessed iMg as a measure of Mg status due to difficulties in sample preparation and storage. Furthermore, the influence of iMg concentrations on cardiometabolic health is scarce. The objective of this study was to investigate whether changes in iMg induced by supplementation may affect cardiometabolic health parameters in an overweight and obese (owt/ob) population. Methods Participants were randomly assigned to receive a daily dose of magnesium (360 mg Mg glycinate) and/or vitamin D (1000 IU D3) supplements or placebo in a 12-week double-blinded, randomized ongoing clinical trial. Because this is an ongoing study, the analyses are still not unblinded. Blood samples were obtained for analyses of serum 25-hydroxyvitamin D (s25OHD), parathyroid hormone, total triglyceride, insulin, fasting glucose and inflammatory cytokine concentrations to determine cardiometabolic risk factors. Serum concentration of iMg were assessed by a NOVA-8 analyzer with an ion sensitive electrode method, using serum samples within 5 hours of initial venipuncture for each participant. Seated blood pressure was assessed with an automated oscillometric device on the right arm, according to the American Heart Association Guidelines for In-Clinic Blood Pressure Measurement. Results A total of 66 Owt/Ob adults, 29 to 65 years of age, with a body mass index (BMI) between 24 to 41 kg/m2, completed all study measurements. Mean iMg concentrations at baseline were 0.543 ± 0.055 mmol/L. There was a significant negative correlation between change in iMg and change in diastolic blood pressure (r = −0.299, P = 0.039). Conclusions Improvement in Mg status may be associated with lowering of diastolic blood pressure. Whether changes in iMg status may affect overall cardiometabolic health is inconclusive at this point. Funding Sources American Heart Association.

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