A comparative study of the radial pulse between primary dysmenorrhea patients and healthy subjects during the menstrual phase

Kim, Jihye; Bae, Jang-Han; Ku, Boncho; Yim, Mi Hong; Ang, Lin; Kim, Hyunho; Jeon, Young‐Joo

doi:10.1038/s41598-019-46066-2

Cited by 7 publications

(6 citation statements)

References 28 publications

(30 reference statements)

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“…The arterial pulse is a phenomenon of periodic oscillation of flow, blood pressure and blood vessel wall caused by the periodic ejection activity of the heart [1][2][3]. The arterial pulse can be noninvasively detected at the body's surface with the radial artery, which contains abundant physiological and pathological information [4][5][6][7]. In clinical practice, the pulse information that corresponds to the strongest point of radial artery vibration is often obtained through finger pressure and finger feeling.…”

Section: Introductionmentioning

confidence: 99%

A Novel Radial Artery P-S Curve Model Based on Radial Vibration of Vascular Wall

et al. 2022

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In pulse wave analysis, the changing curve of pulse wave strength with continuous increasing pressure, that is, the P-S (pressure-strength) curve, contains abundant human physiological information, but there is no accurate model to describe the formation mechanism of the curve. Therefore, this paper proposes a modeling method of the radial artery P-S curve based on the radial vibration of the vascular wall. The modeling method includes three parts. Firstly, based on hemodynamics, we proposed the blood motion equation in the pulsation process of healthy people. Secondly, the motion equation of the vascular wall based on the fluid–structure interaction between blood motion and vascular wall was established. Finally, according to the elastic theory of the vascular wall, the relationship between pulse strength and extravascular pressure of blood vessels was found. To verify the accuracy and applicability of the model, this paper simulated the changes in the vascular wall stress and the intravascular pressure with the extravascular pressure during the process of vascular deformation. In addition, 69 healthy volunteers were selected to participate in this study. Based on the gradient compression, the pulse strength envelope under the continuous pressure sequence of the radial artery, namely the pulse P-S curve, was extracted. We also analyzed the relationship between the individual P-S curve difference and BMI. The results show that the actual human body data collection and analysis results are consistent with the theoretical model established in this paper, which indicates that the model can provide a novel idea for the evaluation of the state of the human body.

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Section: Introductionmentioning

confidence: 99%

A Novel Radial Artery P-S Curve Model Based on Radial Vibration of Vascular Wall

et al. 2022

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“… The intensity of menstrual pain: This was measured using a Visual Analog Scale (VAS). The VAS is commonly used to measure menstrual pain intensity and consists of a 10-cm horizontal line with ‘no pain’ on one end and ‘worse possible pain’ on the other end [ 6 ]. Self-reported pain is the single most important element in understanding pain [ 23 ].…”

Section: Methodsmentioning

confidence: 99%

“…A study conducted in Iran showed that about 70% of young women suffer from dysmenorrhea [ 5 ]. The symptoms of dysmenorrhea such as muscle cramp, headache, fatigue, nausea and vomiting, diarrhea and shivering can reduce the quality of life and social activities of women [ 1 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

The role of water intake in the severity of pain and menstrual distress among females suffering from primary dysmenorrhea: a semi-experimental study

et al. 2021

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Background Dysmenorrhea is the most common health problem among women of reproductive age. The aim of the present study was to investigate the modifying role of water intake in menstrual distress and severity of pain among young female adolescents. Method A semi-experimental study was conducted on a sample of undergraduate female students aged 18–30 years in Isfahan, Iran from 2016 to 2019. Volunteers who had history of suffering from primary dysmenorrhea and drank less than 1600 ml water per day were assigned into water intake (n = 70) and control (n = 70) groups. Participants could select the group in which they desired to be considered. The water intake group was asked to drink water regularly based on a protocol for two menstrual periods while the control group did not receive any form of intervention. Demographic information and menstrual characteristics and severity of menstrual pain (based on a visual analogue scale), were obtained using a short questionnaire. The data were compared between and within two groups before and after intervention using chi-square test, Mann–Whitney U test, and the Friedman’s analysis of variance. Results The mean age (SD) of participants was 22.0 (2.7) years and 77 students reported normal duration of menstrual bleeding. The number of students who had normal duration of menstrual bleeding (4–6 days) in water intake group increased after intervention (39 vs. 49 after first and 46 after second cycles of menstruation). However, the interval of menstrual cycle did not change significantly in either groups. Considerable decrease in using pain killer was observed in water intake group (p < 0.001). No significant differences were observed between control and water intake groups before intervention in pain intensity (pain mean score 7.64 vs. 7.06), but within group comparison showed that pain intensity was significantly decreased among water intake group (p < 0.0001) while for control group only a significant decrease was observed for the first day of menstrual bleeding. Conclusion The findings suggest that water intake might have modifying role in reducing menstrual bleeding duration, pain killer utilization, and pain intensity during menstrual period. Trial registration IRCT20180708040377N1, 16 April 2020, Retrospectively registered, at https://www.irct.ir/trial/32446

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“…Recently, the use of pulse wave measurements, such as tonometry, wrist band, and photoplethysmography (PPG), has been increasing in the fields of integrated medicine and Western medicine. In addition, the difference in radial pulse characteristics between primary dysmenorrhea patients and healthy subjects measured by a tonometry pulse wave measurement system was reported [10], and pulse diagnosis was more noticed. Hence, many research groups have been interested in the development of devices that can measure the pulse wave of the radial artery.…”

Section: Introductionmentioning

confidence: 99%

“…Non-invasive methods are usually performed using a pressurized cuff on the upper arm, which is called the oscillometric method. The tonometric method is a non-invasive blood pressure measurement method because it is capable of measuring not only blood pressure but also other vascular indices, such as the augmentation index (AIx) [2,4,6], pulse wave velocity [13][14][15], and pulse pressure index (PPI) [10,16,17]. However, the tonometric method is not widely used because it is difficult to precisely measure both the radial pulse waveform and pressurizing force from a single sensor and often obtains different results depending on the user's operation ability.…”

Section: Introductionmentioning

confidence: 99%

Accuracy Evaluation of Robotic Tonometry Pulse Sensor System Based on Radial Artery Pulse Wave Simulator

Jun

Kim

2020

IEEE Trans. Instrum. Meas.

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In this paper, a robotic applanation tonometry pulse sensor system has been developed to easily detect the pulse pressure index (PPI) using a pulse sensor array and reduce the position errors caused by manual operation when measuring the pulsation location of the subject's wrist using a robotic manipulator with automatic localization and pressurization. The amplitude change and shift of the pulse pressure (PP) caused by the unstable measurement angle of the tonometry device with a single sensor were measured and analyzed through an experiment with varying measurement angles. To evaluate the accuracy of the robotic tonometry system, the set PPI of the pulsatile simulator, which repeatedly generates artificial radial artery pulses, was compared with the PPI values estimated by the proposed methods. Accuracy evaluation of the pulse sensor indicates a coefficient of variability for the measured signals of up to 3.2 % and a minimum accuracy of 93.7 %; however, the PP calculated by a curve-fitting method applied to the measured signals from the array sensor was improved to an average of less than a 1.0 % coefficient of variability and 97.9 % accuracy. The developed robotic tonometry system represents a contribution to the radial pulse wave research field, which requires more accurate pulse wave analysis and PP measurements.

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A comparative study of the radial pulse between primary dysmenorrhea patients and healthy subjects during the menstrual phase

Cited by 7 publications

References 28 publications

A Novel Radial Artery P-S Curve Model Based on Radial Vibration of Vascular Wall

A Novel Radial Artery P-S Curve Model Based on Radial Vibration of Vascular Wall

The role of water intake in the severity of pain and menstrual distress among females suffering from primary dysmenorrhea: a semi-experimental study

Accuracy Evaluation of Robotic Tonometry Pulse Sensor System Based on Radial Artery Pulse Wave Simulator

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