scholarly journals How reliable are the current Blood Pressure Measuring devices in Health Facilities of Bhutan?

2020 ◽  
Vol 6 (1) ◽  
pp. 11-17
Author(s):  
Soira Tamang ◽  
Mongal Singh Gurung ◽  
Tshewang Lhaden ◽  
Tashi Penjore ◽  
Karma Tenzin
Keyword(s):  
Blood Pressure ◽  
Accuracy Assessment ◽  
Blood Pressure Measurement ◽  
Vital Signs ◽  
Health Facilities ◽  
Leak Rate ◽  
Measuring Devices ◽  
District Hospitals ◽  
Referral Hospitals ◽  
Target Pressure

Background: Accurate blood pressure measurement is vital before any inferences are made on the reading. Since device error is one of the potential causes of inaccurate results, blood pressure measuring (BPM) devices should be periodically assessed for its accuracy. This paper describes the types of BPM devices used in health facilities of Bhutan and the results of their performance verifications. Method: This study assessed the pressure accuracy and leak rates of BPM devices in use at two regional referral hospitals, district hospitals and BHU I using calibrated Vital Signs Simulator (ProSimTM 8) from Fluke Biomedical as reference device. For pressure accuracy assessment, static pressures were simulated against which simultaneous readings of each of the devices were recorded (n=3). For the leak rate assessment, the simulator was set to a target pressure and leak rate (n=3) were recorded over 1 minute. Result: A total of 395 devices of three types, viz., 135 aneroid, 125 electronic and 135 mercury were assessed. Deviations in readings of 64.72% of devices were found to be within acceptable range of ± 3 mmHg. The device-type specific pass percentages for pressure accuracy were 6.40 % for electronic, 88.81 % for aneroid and 94.81 % for mercury. A total of 71.85% of devices (aneroid and mercury) had acceptable leak rates of 15 mmHg per minute. Conclusion: The study shows that not all the blood pressure measuring devices currently being used in the health facilities of Bhutan are accurate. Besides ensuring that only validated BPM devices enter the country, these devices should be verified for its performance periodically once they are in use.

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

2005 ◽  
Vol 7 (3) ◽  
pp. 147-152 ◽  
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.

Evaluating Indirect Blood Pressure Measurement Techniques: A Comparison of Three Systems in Infants and Children

PEDIATRICS ◽  
1978 ◽  
Vol 62 (3) ◽  
pp. 326-330
Author(s):  
Robert F. Reder ◽  
Ivan Dimich ◽  
Myron L. Cohen ◽  
Leonard Steinfeld
Keyword(s):  
Blood Pressure ◽  
Blood Pressure Measurement ◽  
Measurement Techniques ◽  
Infants And Children ◽  
Arterial Blood ◽  
Measuring Devices ◽  
Blood Pressures ◽  
Indirect Blood Pressure ◽  
In Infants And Children ◽  
Better Than

The systemic arterial blood pressures obtained in infants and children utilizing three indirect measuring devices—Arteriosonde 1010, Infrasonde 3000, Pedisphyg system—were compared to each other and to intra-arterial pressure measured directly. The results indicate that Arteriosonde performs considerably better than Infrasonde; nevertheless, the Arteriosonde values are often only approximations of true systole and diastole. The Pedisphyg system yields accurate, reproducible values for systole; however, the system is not designed to determine diastolic blood pressure.

Continuous non-invasive remote automated blood pressure monitoring with novel wearable technology: A Validation Study (Preprint)

2020 ◽  
Author(s):  
Michael McGillion ◽  
Nazari Dvirnik ◽  
Stephen Yang ◽  
Emilie Belley-Côté ◽  
Andre Lamy ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Systolic Blood Pressure ◽  
Diastolic Blood Pressure ◽  
Blood Pressure Monitoring ◽  
Vital Signs ◽  
Standard Of Care ◽  
Non Invasive ◽  
Vital Signs Monitoring ◽  
Measuring Devices ◽  
Cuffless Blood Pressure

BACKGROUND Background: Continuous hemodynamic monitoring is the standard of care for patients intraoperatively, but vital signs monitoring is performed only periodically on post-surgical wards, and patients are routinely discharged home with no surveillance. Wearable continuous monitoring biosensor technologies have the potential to transform postoperative care with early detection of impending clinical deterioration. OBJECTIVE Objective: Our aim was to validate the accuracy of the Cloud DX Vitaliti™ Continuous Vital Signs Monitor (CVSM) continuous non-invasive blood pressure measurements in post-surgical patients. Usability of the Vitaliti™ CVSM was also examined. METHODS Methods: Included patients were recovering from surgery in a cardiac intensive care unit. Validation procedures were according to AAMI - ISO 81060-2 2013 standards for Wearable, Cuffless Blood Pressure Measuring Devices. In static (seated in bed) and supine positons, three 30-second cNIBP measurements were taken for each patient with the Vitaliti™ CVSM and an invasive arterial catheter. The errors of these determinations were calculated. Participants were interviewed about device acceptability RESULTS Results: Data for 21 patients were included in the validation analysis. The overall mean and SD of the errors of determination for the static position were -0.784 mmHg (SD 4.594) for systolic blood pressure and 0.477 mmHg (SD 1.668) for diastolic blood pressure. Errors of determination were slightly higher for the supine position at 3.533 mmHg (SD 6.335) for systolic blood pressure and 3.050 mmHg (SD 3.619) for diastolic blood pressure. The majority rated the Vitaliti™ CVSM as comfortable. CONCLUSIONS Conclusion: The Vitaliti™ CVSM was compliant with AAMI-ISO 81060-2:2013 standards and well-received by patients. CLINICALTRIAL Trial Registration: ClinicalTrials.gov (NCT03493867)

Sign in / Sign up

Export Citation Format

Share Document