Capabilities of photoplethysmography as a method for screening of cardiovascular system pathology

Simonyan, Margarita A.; Posnenkova, Olga M.; Kiselev, Anton R.

doi:10.15275/cardioit.2020.0102

Cited by 4 publications

(3 citation statements)

References 34 publications

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“…В настоящее время в научной и клинической практике для изучения состояния периферического кровотока применяется фотоплетизмография (ФПГ) "на просвет" [16]. В основе данного метода лежит регистрация пульсовой волны (ПВ) объема с помощью оптического датчика, который устанавливается на ногтевой фаланге пальцев конечностей.…”

Section: Introductionunclassified

Photoplethysmography factors associated with undiagnosed hypertension in men with low and moderate cardiovascular risk

Korolev,

Fedorovich,

Gorshkov

et al. 2023

Cardiovasc Ther Prev

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Aim. To study the functional state of the terminal arteries and arterioles of the skin using photoplethysmography (PPG) in men with hypertension (HTN) of low and moderate cardiovascular risk (CVR) and to identify morphofunctional diagnostic criteria associated with HTN.Material and methods. A total of 118 healthy men (30-60 years old) underwent clinical and biochemical blood tests, PPG, ultrasound of cardiac and main arteries, 24-hour blood pressure monitoring. According to 24-hour blood pressure monitoring, two groups were formed: the control group — 59 normotensive men, HTN group — 59 men with HTN.Results. According to the PPG data, men with HN had higher normalized augmentation index (Alp75) (3,8 and -5,25%; (p<0,005)), stiffness index (SI) (7,6 and 7,35 m/s) (p<0,05) and reflection index (RI) (36,5 and 28,4%) (p<0,005), respectively. According to multivariate analysis, an increase in RI ≥30,6% (odds ratio, 4,6; p=0,0476) and SI ≥7,9 m/s (odds ratio, 3,69; p=0,019) was significantly associated with HTN. A regression model has been developed that includes age ≥35 years, RI ≥30,6% and SI ≥7,9 m/s, which allows predicting HTN in men with low and moderate cardiovascular risk with a sensitivity of 78% and a specificity of 62,1%.Conclusion. Men with HTN of low and moderate CVR are characterized by an increase in vascular stiffness, tone of smooth muscle cells, terminal muscular arteries and arterioles, and an increase in pulse wave velocity. The developed model can be used to predict hypertension in these patients and determine indications for further examination.

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Section: Introductionunclassified

Photoplethysmography factors associated with undiagnosed hypertension in men with low and moderate cardiovascular risk

Korolev,

Fedorovich,

Gorshkov

et al. 2023

Cardiovasc Ther Prev

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“…At the same time, the methods of the non-contact determination of SpO 2 -oxygen saturation of blood using a video camera have been developing since 2005 [ 13 , 14 ]. Currently, the diagnostic capabilities of the methods of the contact and non-contact PPGIs are expanding and include not only the assessment of the heart rate, determination of the vascular wall properties, the level of blood oxygen saturation [ 15 – 19 ], but also the determination of the pulse wave propagation time, as well as its spatial distribution over the skin surface [ 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

Photoplethysmographic Imaging of Hemodynamics and Two-Dimensional Oximetry

2022

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The review of recent papers devoted to actively developing methods of photoplethysmographic imaging (the PPGI) of blood volume pulsations in vessels and non-contact two-dimensional oximetry on the surface of a human body has been carried out. The physical fundamentals and technical aspects of the PPGI and oximetry have been considered. The manifold of the physiological parameters available for the analysis by the PPGI method has been shown. The prospects of the PPGI technology have been discussed. The possibilities of non-contact determination of blood oxygen saturation SpO 2 (pulse saturation O 2 ) have been described. The relevance of remote determination of the level of oxygenation in connection with the spread of a new coronavirus infection SARS-CoV-2 (COVID-19) has been emphasized. Most of the works under consideration cover the period 2010–2021.

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“…Besides, in addition to the described methods, for an indirect assessment of the autonomic regulation functional activity via spectral analysis of the distal vascular bed oscillations, there is also the method of a digital photoplethysmography [5]. Previously mentioned high-frequency (HF) and low-frequency (LF) oscillations in the photoplethysmogram (PPG) signal are of particular interest, since they show their potential for the clinical practice [6]. The genesis of HF oscillations is traditionally associated with the mechanical effect of respiration on the peripheral blood flow [7].…”

Section: Introductionmentioning

confidence: 99%

Gender-related specificities of photoplethysmogram spectral assessment dynamics in healthy subjects during the passive tilt test

et al. 2021

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The goal of our study was to investigate gender-related specificities of photoplethysmogram (PPG) spectral assessment dynamics in healthy individuals during the passive tilt test. Material and Methods — The study involved 38 men (33±7 years old) and 15 women (27±8 years old). The PPG signal was recorded for 10 minutes in the horizontal and vertical positions of the human body (passive tilt test). The following spectral parameters of PPG were calculated: HF%, LF%, and LF/HF. Results — In the horizontal body position, men had significantly higher values of the LF% index. In the course of the passive tilt test, an increase in HF% was observed by almost 1.5 times in men and by more than 5 times in women. Significant differences in the values of vegetative indicators were achieved: in women, HF% values exceeded those in men, while LF% values were noticeably lower. Conclusion — Men displayed signs (assessed by LF%) of augmented sympathetic activity, relative to women, at all stages of their passive tilt test. During the transition from the horizontal to the vertical position, a significant increase in respiratory influences (assessed by HF%) on PPG signal components was established, which was more pronounced in women.

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Capabilities of photoplethysmography as a method for screening of cardiovascular system pathology

Cited by 4 publications

References 34 publications

Photoplethysmography factors associated with undiagnosed hypertension in men with low and moderate cardiovascular risk

Photoplethysmography factors associated with undiagnosed hypertension in men with low and moderate cardiovascular risk

Photoplethysmographic Imaging of Hemodynamics and Two-Dimensional Oximetry

Gender-related specificities of photoplethysmogram spectral assessment dynamics in healthy subjects during the passive tilt test

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