Correction to: The mercury sphygmomanometer: soon a museum piece!

Antenatal corticosteroid therapy substantially improves the survival rate of preterm infants, with few side effects. Higher blood pressure in adulthood has been described in several animal species after exposure to antenatal corticosteroids, but there are no similar reports in humans. The objective of the present study was to determine the relationship between exposure to antenatal corticosteroid therapy and blood pressure at 14 years of age. This was a cohort study of 210 preterm survivors with birthweights of < 1501 g born in the Royal Women's Hospital, Melbourne, between 1 January 1977 and 31 March 1982. Blood pressure was measured in 177 subjects (84.3%) at 14 years of age with a standard mercury sphygmomanometer. Children exposed to antenatal corticosteroids (n = 89) had higher systolic and diastolic blood pressures than those not exposed to corticosteroids (n = 88) [mean difference (95% confidence interval) (mmHg): systolic, 4.1 (0.1–8.0); diastolic, 2.8 (0.05–5.6)]. However, few had blood pressure in the hypertensive range. It is concluded that antenatal corticosteroid therapy is associated with higher systolic and diastolic blood pressures in adolescence, and might lead to clinical hypertension in survivors well beyond birth.

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Comparison of the oscillometric blood pressure monitor (BPM-100 Beta ) with the auscultatory mercury sphygmomanometer

Blood Pressure Monitoring ◽

10.1097/00126097-200106000-00007 ◽

2001 ◽

Vol 6 (3) ◽

pp. 153-159 ◽

Cited By ~ 55

Author(s):

Gurdial S. Mattu ◽

Thomas L. Perry ◽

James M. Wright

Keyword(s):

Blood Pressure ◽

Blood Pressure Monitor ◽

Pressure Monitor ◽

Mercury Sphygmomanometer

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A device employing a neural network for blood pressure estimation from the oscillatory pressure pulse wave and PPG signal

Sensor Review ◽

10.1108/sr-09-2020-0216 ◽

2021 ◽

Vol 41 (1) ◽

pp. 74-86

Author(s):

Jian Tian ◽

Jiangan Xie ◽

Zhonghua He ◽

Qianfeng Ma ◽

Xiuxin Wang

Keyword(s):

Neural Network ◽

Blood Pressure ◽

Diastolic Blood Pressure ◽

Pressure Pulse ◽

Pulse Wave ◽

Content Type ◽

The Neural Network ◽

The Difference ◽

Oscillatory Pressure ◽

Mercury Sphygmomanometer

Purpose Wrist-cuff oscillometric blood pressure monitors are very popular in the portable medical device market. However, its accuracy has always been controversial. In addition to the oscillatory pressure pulse wave, the finger photoplethysmography (PPG) can provide information on blood pressure changes. A blood pressure measurement system integrating the information of pressure pulse wave and the finger PPG may improve measurement accuracy. Additionally, a neural network can synthesize the information of different types of signals and approximate the complex nonlinear relationship between inputs and outputs. The purpose of this study is to verify the hypothesis that a wrist-cuff device using a neural network for blood pressure estimation from both the oscillatory pressure pulse wave and PPG signal may improve the accuracy. Design/methodology/approach A PPG sensor was integrated into a wrist blood pressure monitor, so the finger PPG and the oscillatory pressure wave could be detected at the same time during the measurement. After the peak detection, curves were fitted to the data of pressure pulse amplitude and PPG pulse amplitude versus time. A genetic algorithm-back propagation neural network was constructed. Parameters of the curves were inputted into the neural network, the outputs of which were the measurement values of blood pressure. Blood pressure measurements of 145 subjects were obtained using a mercury sphygmomanometer, the developed device with the neural network algorithm and an Omron HEM-6111 blood pressure monitor for comparison. Findings For the systolic blood pressure (SBP), the difference between the proposed device and the mercury sphygmomanometer is 0.0062 ± 2.55 mmHg (mean ± SD) and the difference between the Omron device and the mercury sphygmomanometer is 1.13 ± 9.48 mmHg. The difference in diastolic blood pressure between the mercury sphygmomanometer and the proposed device was 0.28 ± 2.99 mmHg. The difference in diastolic blood pressure between the mercury sphygmomanometer and Omron HEM-6111 was −3.37 ± 7.53 mmHg. Originality/value Although the difference in the SBP error between the proposed device and Omron HEM-6111 was not remarkable, there was a significant difference between the proposed device and Omron HEM-6111 in the diastolic blood pressure error. The developed device showed an improved performance. This study was an attempt to enhance the accuracy of wrist-cuff oscillometric blood pressure monitors by using the finger PPG and the neural network. The hardware framework constructed in this study can improve the conventional wrist oscillometric sphygmomanometer and may be used for continuous measurement of blood pressure.

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BP Values Difference Depending on the Height of Hand Position in Oscillometric Electronic Digital BP Monitor and Its Comparison with Mercury Sphygmomanometer

Korean Circulation Journal ◽

10.4070/kcj.1992.22.6.1017 ◽

1992 ◽

Vol 22 (6) ◽

pp. 1017

Author(s):

Jae Min Kim ◽

Ju Won Kwon ◽

Joung Min Sun ◽

Ja Yo Jeong ◽

Bong Hwa Kim ◽

...

Keyword(s):

Hand Position ◽

Mercury Sphygmomanometer

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Comparison of Two Automatic Devices and the Standard Mercury Sphygmomanometer in Hypertensive Patients

Clinical and Experimental Hypertension Part A Theory and Practice ◽

10.3109/10641968509073561 ◽

1985 ◽

Vol 7 (2-3) ◽

pp. 387-390 ◽

Cited By ~ 5

Author(s):

L. Bassein ◽

C. Borghi ◽

F. V. Costa ◽

E. Strocchi ◽

A. Mussi ◽

...

Keyword(s):

Hypertensive Patients ◽

Mercury Sphygmomanometer

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Abstract 604: Differences In The Prevalence And Control Of Hypertension Between Mercury Sphygmomanometer And Omron (hem_907xl): Nhanes 2009-2010

Hypertension ◽

10.1161/hyp.60.suppl_1.a604 ◽

2012 ◽

Vol 60 (suppl_1) ◽

Author(s):

Sarah Yoon ◽

Tatiana Nwankwo ◽

Margaret Carroll ◽

Yechiam Ostchega

Keyword(s):

Blood Pressure ◽

Data Interpretation ◽

Hypertension Control ◽

Blood Pressure Monitor ◽

Pressure Monitor ◽

Hypertension Prevalence ◽

Health And Nutrition ◽

Subgroup Analyses ◽

And Control ◽

Mercury Sphygmomanometer

Objectives - Precise, reliable blood pressure (BP) measurement, whether in clinical practice or in epidemiological research, is essential for diagnosis and data interpretation. The study objectives were to compare differences in the prevalence and control of hypertension among adults aged 18 years and older using two standard devices: the mercury sphygmomanometer and the Omron Digital Blood Pressure Monitor (HEM_907XL). Methods - 5,185 individuals aged 18 years and older participated in the National Health and Nutrition Examination Survey 2009-2010 BP methodology study. Hypertension was defined as a mean systolic blood pressure (SBP) ≥ 140 mmHg or diastolic blood pressure (DBP) ≥ 90 mmHg, or currently taking BP medication. Mean BP was the average of up to three readings for each device. Controlled Hypertension among hypertensives was defined as SBP <140 mmHg and DBP < 90 mmHg. Results - Overall the age-adjusted prevalence of hypertension among adults was higher by mercury measurement (27.7%) than by Omron (26.4%, p <0.05). There were significant differences in hypertension prevalence between the two devices among men (mercury: 28.9% vs. Omron: 26.5%, p < 0.05) and Hispanics (mercury: 25.1% vs. Omron: 22.8%, p < 0.05). The overall hypertension control rate among hypertensives was significantly higher using Omron (64.6%) vs. mercury measurement (57.5%, p <0.05). In subgroup analyses, rates of hypertension control among hypertensives were systematically higher using Omron: for those 40-59 years (mercury: 60.0%; Omron: 67.9%); for those 60 years and older (mercury: 59.7%; Omron: 65.4%); for men (mercury: 54.9%; Omron: 63.9%); women (mercury: 61.5%; Omron: 66.1%,); non-Hispanic whites (mercury: 60.9%; Omron: 68.4%); non-Hispanic blacks(mercury: 48.8%; Omron: 54.3%); and Hispanics (mercury: 34.6%; Omron: 44.8%), ( p <0.05 for all groups). Conclusion - Hypertension prevalence measured by mercury was significantly higher than that measured by the Omron device. Lower Omron readings resulted in apparently higher estimates for the rate of controlled hypertension.

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Reliability of Automated Blood Pressure Devices used by Hypertensive Patients

Journal of the Royal Society of Medicine ◽

10.1177/014107680509800306 ◽

2005 ◽

Vol 98 (3) ◽

pp. 111-113 ◽

Cited By ~ 5

Author(s):

William C W Wong ◽

Ivan K L Shiu ◽

Thomas M T Hwong ◽

James A Dickinson

Keyword(s):

Blood Pressure ◽

Hong Kong ◽

Medical Advice ◽

Community Clinics ◽

Hypertensive Patients ◽

Clear Advantage ◽

Mercury Sphygmomanometer

Automated blood pressure (BP) devices are used by many hypertensive patients in Hong Kong, with or without medical advice. At two community clinics, we invited hypertensive patients aged between 40 and 70 years who used such a device to fill in a questionnaire and to have four sets of BP measurements, automated and mercury, at two visits. Of 290 hypertensive patients 120 fulfilled the criteria, and 73 of these agreed to participate. 53 devices measured arm BP, 21 measured forearm BP. The agreement between the mercury sphygmomanometer and the automated devices was poor, with average differences of 9.5 mmHg for systolic and 9.4 mmHg for diastolic and no clear advantage for either site of measurement. As a means of screening for BP >140/90 mmHg the sensitivity of the automated devices was 81% and the specificity was 80%. There were large variations in how often and under what circumstances the devices had been used. One-fifth of the devices had been acquired on medical advice but only 11% of the participants were aware of the three important conditions for operating such devices. Discussion of automated devices, their role and proper use, should now be part of routine hypertensive care.

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