Validation of the Welch Allyn ‘Vital Signs’ oscillometric blood pressure monitor

Jones, Christine; Taylor, Kate; Poston, Lucilla; Shennan, Andrew

doi:10.1038/sj.jhh.1001141

Cited by 73 publications

(66 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The pressure wave transmission to the cuff or the validity of the algorithm used to calculate systolic and diastolic pressure could also contribute to inaccuracy. Furthermore, it should be noted that patients with preeclampsia have a higher average pressure (136 mmHg systolic; 82 mmHg diastolic) than those without preeclampsia (114 mmHg systolic; 67 mmHg diastolic) and it is interesting to note that the device also showed decreased accuracy in hypertensive non-pregnant adults 12 . The ability of the device to detect systolic blood pressure accurately was particularly poor in the pre-eclamptic group.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Validation of the Welch Allyn 'Vital Signs' blood pressure measurement device in pregnancy and pre-eclampsia

Reinders¹

2003

BJOG: An International Journal of Obstetrics and Gynaecology

View full text Add to dashboard Cite

Objective To establish the accuracy the Welch Allyn 'Vital Signs' blood pressure monitor in pregnancy and pre-eclampsia according to a modified British Hypertension Society protocol. Design Prospective observational study.Setting Maternity Unit/Obstetric Ward, Guy's and St Thomas' Hospital, London, UK.Population Forty-three pregnant women of whom 12 had pre-eclampsia.Methods Nine sequential same-arm measurements were taken from each woman by two trained observers, alternating between a mercury sphygmomanometer and the device. The last seven readings were analysed according to the British Hypertension Society protocol. The accuracy of the device was determined using the grading scale indicated by the British Hypertension Society protocol (grade A/B ¼ pass, grade C/D ¼ fail). Main outcome measures Grading criteria of the British Hypertension Society protocol.Results The Welch Allyn 'Vital Signs' monitor achieved a grade A for both systolic and diastolic pressures in pregnant women who did not have pre-eclampsia. In those women with pre-eclampsia, it achieved a grade D and B for systolic and diastolic pressures, respectively. The mean differences between the observers and the device in women without pre-eclampsia were À2.6 (6.4) mmHg and À1.5 (7.2) mmHg for systolic and diastolic pressures [and in pre-eclamptic women À7.8 (6.3) and À5.5 (6.5) mmHg]. It therefore fulfils criteria set by the Association for the Advancement of Medical Instrumentation (mean <5 mmHg and standard deviation <8 mmHg) in pregnancy, but not in pre-eclampsia. Conclusion This is the first automated device suitable for robust clinical use that can be recommended for use in pregnancy. However, it should be borne in mind that -similar to other devices -it significantly underrecorded readings obtained in pre-eclamptic women.

show abstract

Section: Discussionmentioning

confidence: 99%

“…Pressure ranges: Pregnancy: systolic blood pressure 88 -160 mmHg; diastolic blood pressure 44 -106 mmHg and Pre-eclampsia: systolic blood pressure 100 -168 mmHg; diastolic blood pressure 58 -100 mmHg. * Previously published data in non-pregnant adults 12 . Fig.…”

Section: Static Device Validationmentioning

confidence: 99%

Validation of the Welch Allyn 'Vital Signs' blood pressure measurement device in pregnancy and pre-eclampsia

Reinders¹

2003

BJOG: An International Journal of Obstetrics and Gynaecology

View full text Add to dashboard Cite

show abstract

“…Both the A&D UA-767 monitor 10 and the Welch Allyn Vital Signs monitor 11 have been tested according to the earlier protocol of the British Hypertension Society 7 and given an A rating for both SBP and DBP. To achieve this rating, at least 60% of readings must show an absolute difference between the standard and the test device of not greater than 5 mmHg, 85% not greater than 10 mmHg and 95% not greater than 15 mmHg.…”

Section: Discussionmentioning

confidence: 99%

“…During this test, the peak inflation pressure of the cuff was also noted in order to compare this value with that of the previously measured systolic pressure; this indicated the degree to which a monitor adjusted its measurement procedure in response to the previous measured pressure. 9 The second test involved measurements of a ramped pressure sequence with a single measure- These represent measurements considered to be slightly inaccurate [11][12][13][14][15] These represent measurements considered to be moderately inaccurate 415…”

Section: Methodsmentioning

confidence: 99%

Evaluation of the A&D UA-767 and Welch Allyn Spot Vital Signs noninvasive blood pressure monitors using a blood pressure simulator

2004

View full text Add to dashboard Cite

The performance of five units of the A&D UA-767 NIBP monitor and five units of the Welch Allyn Spot Vital Signs noninvasive blood pressure monitor was evaluated with the Biotek BP Pump blood pressure simulator under a variety of conditions. Using the simulator to provide a normal blood pressure waveform at 80 bpm over a range of pressures, it was found that the mean bias for the combined results from the A&D monitors was 1.972.8 mmHg and from the Welch Allyn monitors was 0.772.4 mmHg. No individual measurement showed a bias greater than 10 mmHg. A bias of greater than 5 mmHg was present in 28 out of 150 measurements for the A&D monitor and 10 out of 150 measurements for the Welch Allyn monitor. These results are comparable with ratings achieved by the instruments when tested previously according to the British Hypertension Society protocol, but testing with a simulator allowed assessment of aspects of performance which were not included in the British Hypertension Society protocol.

show abstract

“…30 Brachial blood pressure was measured with the use of a validated automated oscillometric device (Welch Allyn Vital Signs Monitor, Skaneateles Falls, NY, USA). 31 Supine blood pressure in the left brachial artery was measured after 10 min of quiet rest and repeated after a further 10 min; a third blood pressure measurement was taken if there was a variance of X10 mm Hg; the average of the two closest readings was recorded as the brachial blood pressure. 32 As blood pressure was only measured on one occasion, a diagnosis of hypertension could not be established as this requires repeated measurements (minimum of three).…”

Section: Anthropometric and Blood Pressure Measuresmentioning

confidence: 99%

The effect of dairy consumption on blood pressure in mid-childhood: CAPS cohort study

et al. 2012

View full text Add to dashboard Cite

BACKGROUND/OBJECTIVES: It has been postulated that a higher dairy consumption may affect blood pressure regulation. The aim of this study was to examine the association between dairy consumption and blood pressure in mid-childhood. SUBJECTS/METHODS: Subjects (n ¼ 335) were participants of a birth cohort at high risk of asthma with information on diet at 18 months and blood pressure at 8 years. Multivariate analyses were used to assess the association of dairy consumption (serves) and micronutrient intakes (mg). In a subgroup of children (n ¼ 201), dietary intake was also measured at approximately 9 years. RESULTS: Children in the highest quintile of dairy consumption at 18 months had lower systolic blood pressure (SBP) and diastolic blood pressure (DBP) at 8 years (2.5 mm Hg, P ¼ 0.046 and 1.9 mm Hg, P ¼ 0.047, respectively) than those in the lowest quintiles. SBP was lowest among children in the highest quintiles of calcium, magnesium and potassium intakes. Significant negative linear trends were observed between SBP and intakes of dairy serves, calcium, magnesium and potassium. Furthermore, SBP and DBP were lowest in the group of children that consumed at least two dairy serves at both 18 months and the follow-up dietary data collection at 9 years, compared with all other children (SBP 98.7 vs 101.0 mm Hg, P ¼ 0.07; and DBP 56.5 vs 59.3 mm Hg, P ¼ 0.006, respectively). CONCLUSION: These results are consistent with a protective effect of dairy consumption in childhood on blood pressure at age 8 years.

show abstract

Validation of the Welch Allyn ‘Vital Signs’ oscillometric blood pressure monitor

Cited by 73 publications

References 5 publications

Validation of the Welch Allyn 'Vital Signs' blood pressure measurement device in pregnancy and pre-eclampsia

Validation of the Welch Allyn 'Vital Signs' blood pressure measurement device in pregnancy and pre-eclampsia

Evaluation of the A&D UA-767 and Welch Allyn Spot Vital Signs noninvasive blood pressure monitors using a blood pressure simulator

The effect of dairy consumption on blood pressure in mid-childhood: CAPS cohort study

Contact Info

Product

Resources

About