Automated Auscultatory Blood Pressure Measurements using Korotkoff Sounds Detection: A Preliminary Study

Author(s):  
Dziban Naufal ◽  
Azizah Syifalianti Noor ◽  
Muhammad Yusri Khalil ◽  
Tati Erawati Rajab ◽  
Agung Wahyu Setiawan
1991 ◽  
Vol 3 (4) ◽  
pp. 290-299 ◽  
Author(s):  
Frank A. Treiber ◽  
Francis McCaffrey ◽  
William B. Strong ◽  
Harry Davis ◽  
Tom Baranowski

This study compared blood pressure and heart rate measurements provided by the Quinton 410 automated exercise monitor with simultaneous auscultatory and electrocardiograph readings during rest, postural change, immediately after each treadmill exercise workload, and during active recovery in a sample of young children (mean age 7.9 yrs). The Quinton 410 provided highly accurate heart rates under all conditions (average mean difference <1.0 bpm). The Quinton systolic readings correlated well with and were similar to auscultation across conditions except for the initial treadmill workload. Slightly weaker relationships were observed between the Quinton and K4 diastolic comparisons. Compared with K4 auscultatory readings, the Quinton 410 provided slightly lower diastolic pressures across conditions (average mean difference = 3.1 mmHg). These findings provide preliminary evidence that for group comparisons with children, the Quinton 410 provides acceptable blood pressure estimates resulting from a variety of events, including exercise.


2021 ◽  
Vol 31 (2) ◽  
pp. 19-25
Author(s):  
Athina Giovanis ◽  
Rose Anna Roantree ◽  
Dennis Burke ◽  
Krishna Sheth ◽  
Ashley Adamo

Abstract Introduction: Based on the osteopathic principle that “structure and function are interrelated,” a kidney that is not moving optimally with respiration might be limited in its physiologic functions as well. The objective of this study was to determine if osteopathic manipulative treatment (OMT) affects craniocaudal renal mobility and if there are any correlations between renal mobility and blood pressure measurements. Methods: 33 healthy female participants were recruited. 25 participants were in the treatment group, and 8 in the control group. All participants’ blood pressures were recorded initially. All participants were then evaluated for craniocaudal renal mobility via ultrasound measurements using Mindray Z6 technology. The treatment group then received an OMT protocol, while the control group rested for 20 minutes. The ultrasound evaluation for renal mobility was then repeated on the participants, and a final blood pressure reading obtained (Touro College HSIRB #1799). Results: OMT significantly increased the mobility of the right kidney (P&lt;0.05), but not the left kidney. Although there was no direct correlation between changes in renal mobility and changes in blood pressure, both the systolic and diastolic blood pressure readings decreased significantly (P&lt;0.05) after OMT. Conclusion: In this preliminary study, right kidney mobility increased and systolic and diastolic blood pressure measurements both decreased after OMT. Follow-up studies are warranted to further explore kidney mobility and its potential association with blood pressure measurements, as well as the effects of OMT on kidney mobility and blood pressure.


1996 ◽  
Vol 83 (3) ◽  
pp. 665 ◽  
Author(s):  
Nobuhiro Maekawa ◽  
Katsuya Mikawa ◽  
Kahoru Nishina ◽  
Yoshito Kiyonari ◽  
Hidefumi Obara

2020 ◽  
Vol 87 (10) ◽  
pp. 630-636
Author(s):  
Oliver Slanina ◽  
Susanne Quabis ◽  
Robert Wynands

AbstractTo ensure the safety of users like hunters and sports shooters, the dynamic pressure inside an ammunition cartridge must not exceed a maximum value. We have investigated the reproducibility of the dynamic measurement of the gas pressure inside civilian ammunition cartridges during firing, when following the rules formulated by the Permanent International Commission for the Proof of Small Arms (C. I. P.). We find an in-house spread of 0.8 % between maximum and minimum pressure for runs with the same barrel and of 1.8 % among a set of three barrels. This sets a baseline for the expected agreement in measurement comparisons between different laboratories. Furthermore, a difference of more than 3 % is found in a preliminary study of the influence of ammunition storage conditions.


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