Method of using laser doppler flowmetry in assessment of the state of blood microcirculation system

2020 ◽  
Author(s):  
Viacheslav V. Osadchyi ◽  
Tatiana I. Stanishevska ◽  
Oksana I. Gorna ◽  
Roman М. Gorbatiuk ◽  
Irina M. Melnychuk ◽  
...  
Keyword(s):  
Laser Doppler Flowmetry ◽  
The State ◽  
Laser Doppler ◽  
Doppler Flowmetry ◽  
Blood Microcirculation

scholarly journals The condition state of the microcirculatory channel in the skin of patients with Rosacea

2019 ◽  
pp. 22-25
Author(s):  
Хамди Кхаем ◽  
Елена Гортинская
Keyword(s):  
Laser Doppler Flowmetry ◽  
Frequency Characteristic ◽  
The State ◽  
Laser Doppler ◽  
Doppler Flowmetry ◽  
Amplitude Frequency Characteristic ◽  
Condition State

A laser Doppler flowmetry study of the state of the micro­vasculature of the skin in patients with rosacea was per­formed. The amplitude-frequency criteria for assessing dermal circulation are determined. Depth and direction of vascularization disorders are shown. It is proved that the amplitude-frequency characteristic of the state of the micro­vasculature of the skin should be taken into account when choosing the means of therapeutic correction and can serve as one of the criteria for the effectiveness of treatment.

scholarly journals Changes of microcirculation in rats detected by laser Doppler flowmetry at physical load accompanied by the development of thrombotic readiness

2017 ◽  
Vol 16 (4) ◽  
pp. 60-64
Author(s):  
A. A. Blazhko ◽  
I. I. Shakhmatov ◽  
V. I. Kiselev ◽  
N. A. Lycheva ◽  
S. V. Moskalenko
Keyword(s):  
High Risk ◽  
Laser Doppler Flowmetry ◽  
The State ◽  
Physical Load ◽  
Laser Doppler ◽  
Doppler Flowmetry ◽  
Flux Parameter ◽  
Microcirculation Parameter

Introduction. A considerable physical load can lead to the damage of various organs and systems including the system of the microcirculatory bloodstream. Materials and methods. The experimental groups of animals were exposed to 4-hour and 8-hour physical load. The state of the microcirculatory bloodstream was examined by means of laser Doppler flowmetry. Results. 4-hour physical load did not cause any reduction of the microcirculation parameter in rats. 8-hour physical load led to a decrease of the microcirculation parameter and further reduction of flux parameter. Conclusions. Such changes of microcirculation parameters can be one of the symptoms of development of the state of thrombotic readiness and high risk of thrombosis in rats after 8-hour physical load.

scholarly journals STUDY OF HEMOMICROCIRCULATION IN UPPER- EXTREMITYSKIN IN HEALTHY MEN IN NORMAL CONDITIONS WITH ACCOUNT OF H

2020 ◽  
Vol 10 (4) ◽  
pp. 63-65
Author(s):  
Vadim Astashov ◽  
Valentin Kozlov ◽  
Victor Sidorov, ◽  
Mihail Uloga ◽  
Inna Borodina ◽  
...  
Keyword(s):  
Blood Flow ◽  
Laser Doppler Flowmetry ◽  
Peripheral Blood ◽  
Upper Extremities ◽  
Laser Doppler ◽  
Peripheral Blood Flow ◽  
Doppler Flowmetry ◽  
Healthy Men ◽  
Young Males ◽  
Blood Microcirculation

In this study we used laser doppler flowmetry to investigate the parameters of peripheral blood flow in the upper extremities in young males both right- and left-handers. Based on the data obtained we found that in right-handers (dextrals) active mechanisms of regulation of blood microcirculation prevail on the leading hand, In left-handers (sinestrals) active and passive mechanisms of its regulation are involved in the regulation of blood flow on the leading hand (left) and on the opposite (right). However, the contribution of active mechanisms is lower than that of right-handers.

Evaluation of blood microcirculation parameters by combined use of laser Doppler flowmetry and videocapillaroscopy methods

2017 ◽  
Author(s):  
M. V. Volkov ◽  
D. A. Kostrova ◽  
N. B. Margaryants ◽  
I. P. Gurov ◽  
N. P. Erofeev ◽  
...  
Keyword(s):  
Laser Doppler Flowmetry ◽  
Laser Doppler ◽  
Doppler Flowmetry ◽  
Blood Microcirculation ◽  
Combined Use

scholarly journals Wearable Laser Doppler Flowmetry Sensor: A Feasibility Study with Smoker and Non-Smoker Volunteers

Biosensors ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 201
Author(s):  
Mou Saha ◽  
Viktor Dremin ◽  
Ilya Rafailov ◽  
Andrey Dunaev ◽  
Sergei Sokolovski ◽  
...  
Keyword(s):  
Laser Doppler Flowmetry ◽  
Blood Circulation ◽  
Blood Perfusion ◽  
Pulse Frequency ◽  
Laser Doppler ◽  
Doppler Flowmetry ◽  
Left Hand ◽  
Non Invasive ◽  
Blood Microcirculation ◽  
Left Middle

Novel, non-invasive wearable laser Doppler flowmetry (LDF) devices measure real-time blood circulation of the left middle fingertip and the topside of the wrist of the left hand. The LDF signals are simultaneously recorded for fingertip and wrist. The amplitude of blood flow signals and wavelet analysis of the signal are used for the analysis of blood perfusion parameters. The aim of this pilot study is to validate the accuracy of blood circulation measurements recorded by one such non-invasive wearable LDF device for healthy young non-smokers and smokers. This study reveals a higher level of blood perfusion in the non-smoker group compared to the smoker group and vice-versa for the variation of pulse frequency. This result can be useful to assess the sensitivity of the wearable LDF sensor in determining the effect of nicotine for smokers as compared to non-smokers and also the blood microcirculation in smokers with different pathologies.

He-Ne laser effects on blood microcirculation during wound healing: A method of in vivo study through laser Doppler flowmetry

2004 ◽  
Vol 35 (5) ◽  
pp. 363-368 ◽  
Author(s):  
Silvia Cristina Núñez ◽  
Gessé E.C. Nogueira ◽  
Martha S. Ribeiro ◽  
Aguinaldo S. Garcez ◽  
José L. Lage-Marques
Keyword(s):  
Wound Healing ◽  
Laser Doppler Flowmetry ◽  
Laser Doppler ◽  
In Vivo Study ◽  
Doppler Flowmetry ◽  
Blood Microcirculation

scholarly journals USAGE OF LASER DOPPLER FLOWMETRY FOR CHILDREN BLOOD MICROCIRCULATION ASSESSMENT

2011 ◽  
Vol 1 (1) ◽  
Author(s):  
І. П. Аносов ◽  
Л. В. Антоновська ◽  
О. І. Горна ◽  
Т. І. Станішевська ◽  
Л. М. Маньковська ◽  
...  
Keyword(s):  
Laser Doppler Flowmetry ◽  
Laser Doppler ◽  
Doppler Flowmetry ◽  
Blood Microcirculation

scholarly journals Laser doppler flowmetry as the advanced non-invasive method of evaluation оf microcirculation status in patients with diabetes mellitus

2021 ◽  
pp. 44-50
Author(s):  
Z. Shaienko
Keyword(s):  
Diabetes Mellitus ◽  
Clinical Practice ◽  
Laser Doppler Flowmetry ◽  
The State ◽  
Laser Doppler ◽  
Doppler Flowmetry ◽  
Non Invasive ◽  
Patients With Diabetes ◽  
Microcirculatory Disorders ◽  
Method Of Evaluation

Currently, the problem of diabetes mellitus (DM) is one of the most important medical and social challenges worldwide. This is primarily due to the widespread prevalence of the disease and tendency to further increase in the incidence of diabetes mellitus.Systemic microcirculatory disorders play an impor­tant role in the pathogenesis of DM complications. They lead to the development of microangiopathy and neuropathy through the primary lesion of vessels involved in the blood supply of the peripheral parts of the nervous system. Currently, less than one-third of physicians recognize signs of peripheral neuropathy associated with diabetes. Untimely diagnosis contributes significantly to high morbidity, disability, and mortality.The authorinvestigates the experience of the use of laser Doppler flowmetry (LDF) in clinical practice as a method of studying the state of the microcirculatory bed in patients with diabetes mellitus.LDF is a non-invasive quantitative method of microcirculation assessment; its capabilities include the analysis of microcirculatory rhythms and functional testing with different types of provocative effects, which provides with investigating the state of regulatory mechanisms of microcirculation. The prevention and treatment of various microcirculatory disorders is one of the most important problems of medical practice. The difficulties of studying the microcirculation are caused by the very small size of microvessels and strong ramification of intra-organic vascular networks. The use of LDF in scientific research will make it possible toreveal the DM-specific changes in microcir­culatory bed functioning. The findings of some studies suggest that microcirculatory disorders are not only a pathogenetic link in the development of complications, but they are also observed in patients with early disorders of carbohydrate metabolism and may precede the manifestation of diabetes. However, the method has not yet become widespread in clinical practice.

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