Systematic Review: Blood Pressure Value Difference Between Measurement with Oscillometric and Auscultation of Patients in Health Services

Blood pressure is a vital sign that is very important and is a basic physiological parameter in conducting physical assessments of critical patients. Blood pressure can be measured using manual or automatic instruments. The gold standard measures blood pressure with a mercury sphygmomanometer, but its use has been withdrawn due to the risk of mercury contamination. In practice, different values ​​are often obtained between the oscillometric method and auscultation. The objective of this review is to evaluate the significant difference in blood pressure between using the oscillometric method and auscultation in patients in health care. Method A systematic review approach is carried out on research results published in 3 search engines, namely EBSCO, Proquest, and Science Direct. Articles found according to the inclusion criteria that have been set are then assessed using the level of evidence using the NICE approach. The appraisal study uses the Critical Appraisal Skills Program (CASP), and the synthesis method uses a modified PICO. The result indicates that a total of 3 (three) studies were obtained according to the inclusion criteria. The intervention carried out was measuring blood pressure using two methods, namely oscillometric and auscultation. To sum up, there was a statistically significant difference in systolic pressure between the oscillometric and auscultatory methods.

Validation of blood pressure measurement by the complex for daily monitoring of ECG and blood pressure “Medicom-Combi" by oscillometric and auscultatory methods in pediatric population (according to the BHS-93 protocol)

Purpose. To assess the accuracy of blood pressure (BP) measurement by the complex for daily monitoring of ECG and blood pressure «MedicomCombi» in comparison with a mercury sphygmomanometer in pediatric patients.Materials and methods. The recruitment of study participants was carried out in accordance with the criteria outlined in the international protocol BHS-93 for the pediatric population. During the tests, repeated sequential measurements of blood pressure were carried out by experts (using mercury sphygmomanometers) and the tested complex (by oscillometric and auscultatory methods).Results. The mean SBP, determined by the oscillometric method, was 116.0 ± 13.6 mm Hg, DBP - 69.0 ± 11.8 mm Hg. The mean SBP according to the auscultatory method was 116.0 ± 14.6 mm Hg, DBP - 70.4 ± 11.9 mm Hg. In 66% of cases for SBP and in 62% of cases for DBP, the difference between expert and test measurements by the oscillometric method did not exceed 5 mm Hg. In 100% of cases for SBP and in 96% of cases for DBP, the differences were within 10 mm Hg. The average differences between the experts and the tested complex were - 0.2 ± 5.7 mm Hg for SBP and 1.6 ± 6.1 for DBP. In 68 % of cases for SBP and in 65 % of cases for DBP, the difference between expert and test measurements by the auscultatory method was no more than 5 mm Hg. In 100% of cases for SBP and in 95% of cases for DBP, the differences did not exceed 10 mm Hg. The average differences between the experts and the tested complex were - 0.3 ± 4.7 mm Hg for SBP and 0.1 ± 5.7 for DBP.Conclusion. The complex for daily monitoring of ECG and blood pressure «Medicom-Combi» has demonstrated compliance with the accuracy requirements specified in the BHS 1993 protocol (class «А/А»), and can be recommended for measuring blood pressure by oscillometric and auscultatory methods in pediatric practice.

MEASUREMENT OF PARAMETERS CHARACTERIZING EARLY VASCULAR AGING WITH THE USE OF OSCILLOMETRIC METHOD DURING SPACE FLIGHT

The article covers the studies of the vascular wall functioning in cosmonauts using the data of pulse wave velocity as a biomarker of early vascular aging. The investigations were performed with the use of device Mobilograph twice before launch, every 30 days of 6-month ISS missions and on days 4 and 8 of recovery. Pulse wave velocity has never exceeded threshold values suggesting that participation in low-Earth orbital missions does not put at risk cardiac health threatening with vascular pathologies. Yet, the conclusion can be premature given the limited potentialities of the method and hardware used in the investigation.

Validation of blood pressure measurement with Medicom-Combi blood pressure monitor using oscillometric and auscultatory methods for use among adults (according to International Protocol of European Society of Hypertension for validation of blood pressure measuring devices in adults)

Purpose. To evaluate the accuracy of measuring blood pressure (BP) by the ECG and Medicom-Combi daily blood pressure monitoring system, designed to monitor blood pressure with oscillometric and auscultatory methods, among adults in accordance with the European Hypertension Society’s International Protocol for validation of adult blood pressure measuring instruments (ESH‑2001). Materials and methods. Patients were recruited based on criteria recommended by the ESH‑2001 protocol. A total of 99 pairs of test and control measurements of blood pressure were obtained (three pairs of measurements for each of 33 subjects). The measurements were carried out sequentially on the same arm. For the arm circumference of 24–32 cm and 32–42 cm, two cuffs of the test complex were used (adult small and adult large, respectively). Results. When testing the complex, 66, 93, and 99 measurements were obtained within 5, 10, and 15 mmHg for systolic blood pressure (SBP) and 66, 89 and 95 measurements for diastolic blood pressure (DBP), respectively, using the oscillometric method, as well as 71, 93 and 97 measurements for SBP and 71, 84 and 93 measurements for DBP, respectively, when using the auscultatory method. The mean ± SD of the differences between the test and control measurements were 1.8 ± 5.4 / 1.6 ± 6.9 mmHg for SBP / DBP using the oscillometric method and 0.8 ± 5.9 / –1.2 ± 7.9 mmHg for SBP / DBP using the auscultatory method. Conclusion. The complex of daily monitoring of ECG and blood pressure Medicom-Combi, designed for daily monitoring of blood pressure, meets the requirements stated in the international protocol ESH‑2001 (class ‘Passed’) for adults and is recommended for use in clinical practice.