The measurement of cutaneous blood flow in healthy volunteers subjected to physical exercise with ultrasound Doppler imaging and laser Doppler flowmetry

2017 ◽  
Vol 65 (4) ◽  
pp. 373-381 ◽  
Author(s):  
Helena Lenasi ◽  
Nejka Potočnik ◽  
Nikolaj Petrishchev ◽  
Marina Papp ◽  
Anastasia Egorkina ◽  
...  
Keyword(s):  
Blood Flow ◽  
Physical Exercise ◽  
Healthy Volunteers ◽  
Laser Doppler Flowmetry ◽  
Laser Doppler ◽  
Doppler Imaging ◽  
Cutaneous Blood Flow ◽  
Doppler Flowmetry ◽  
Ultrasound Doppler ◽  
Cutaneous Blood

Guidelines for measurement of cutaneous blood flow by laser Doppler flowmetry

1994 ◽  
Vol 30 (2) ◽  
pp. 65-72 ◽  
Author(s):  
Andreas Bircher ◽  
Edith M. de Boer ◽  
Tove Agner ◽  
Jan E. Wahlberg ◽  
Jørgen Serup
Keyword(s):  
Blood Flow ◽  
Laser Doppler Flowmetry ◽  
Laser Doppler ◽  
Cutaneous Blood Flow ◽  
Doppler Flowmetry ◽  
Cutaneous Blood

New Means for Evaluation of Volumetric Microhemodynamics of Loco-Motor System Tissues with Laser Doppler Flowmetry

2004 ◽  
Vol 11 (1) ◽  
pp. 47-52
Author(s):  
A I Krupatkin ◽  
V G Golubev ◽  
D E Panov ◽  
M V Merkulov ◽  
V V Yulov ◽  
...  
Keyword(s):  
Blood Flow ◽  
Laser Doppler Flowmetry ◽  
Dynamic Control ◽  
Vertical Plane ◽  
Laser Doppler ◽  
Microvascular Blood Flow ◽  
Nerve Lesion ◽  
Cutaneous Blood Flow ◽  
Doppler Flowmetry ◽  
Cutaneous Blood

Twenty eight volunteers and 46patients (18 with old complete anatomic rupture of n. medianus (CARN), 14 with intratrancal neuroma after failed priamary suture, 14 with partial anatomic nerve lesion (PANL)) were examined using laser doppler flowmetry (LDF) of fingers skin in red (R) and infrared (IR) diaposons and wavelet-analysis of oscillations of microvascular blood flow. Formulae for calculation of indicis of local volumetric total (VTBF), nutritious (NVBF), shunting (VSBF) microvascular cutaneous blood flow, resistence to blood inflow anf outflow, microvascular pressure were suggested. Reliable positive correlation of temperature with NVBF and VTBF in red diapason was shown. The advantages of volumetric LDF parameters in old CARN were demonstrated. In old CARH and In intratrancal neuroma the decrease of VTBF with deficit of NVBF was noted. Correlation between VTBF in red and infrared diaposons enabled to assess the distribution of cutaneous blood flow in vertical plane. This methods allows to detect the causes of nutritious blood flow disturbance and to choose the correction tecnique. The advantages of LDF-indicis are its uninvasiveness, innocuity, possibilities to perform dynamic control and obtain information.

Peculiarities of microcirculation in periodont tissues in children of key age groups sufficient type 1 diabetes. Part II

2019 ◽  
Vol 24 (2) ◽  
pp. 108-119 ◽  
Author(s):  
B. N. Davydov ◽  
D. A. Domenyuk ◽  
S. V. Dmitrienko
Keyword(s):  
Diabetes Mellitus ◽  
Blood Flow ◽  
Type 1 Diabetes ◽  
Type 1 Diabetes Mellitus ◽  
Laser Doppler Flowmetry ◽  
Laser Doppler ◽  
Diabetic Microangiopathy ◽  
Healthy Children ◽  
Doppler Flowmetry

Relevance. Morpho-functional changes in peripheral circulation established in type 1 diabetes mellitus correlate with changes in central hemodynamics, allowing the use of microcirculation indicators as diagnostic and prognostic criteria for assessing the degree of functional vascular disorders. Identifcation of microcirculation features of the blood by the method of laser Doppler flowmetry in children with different experience of type 1 diabetes in key age categories.Materials and methods. The study included 67 children with type 1 diabetes mellitus aged 12-15 years with an experience of the disease from six months to ten years. The comparison group consisted of 38 healthy children. The state of the microvasculature was assessed by laser Doppler flowmetry using a laser analyzer for capillary blood flow LAKK-OP.Results. In children with an experience of type 1 diabetes of less than two years, microcirculation disorders in periodontal tissues correspond to the hyperemic form, accompanied by increased perfusion, a decrease in the amplitude of low-frequency oscillations, increased heart rate, high blood flling, and blood flow bypass. For children with an endocrinopathy experience of more than three years, microcirculation disorders correspond to a stagnant form, combined with a decrease in perfusion due to stagnation of blood in the venular link, endothelial domination with suppression of neurogenic and cardiac fluctuations, low efciency and redistribution of blood flow in favor of the nutritive link.Conclusions. With the increase in experience, the degree of compensation of type 1 diabetes, the progression of diabetic microangiopathy, it is advisable to designate two stages of development of microcirculatory disorders. Early – compensatory with active adaptation, including neurogenic and endothelial regulation mechanisms. Late – decompensation with passive adaptation, supporting the effectiveness of microcirculation due to myogenic control of regulation, shunting and increasing the rate of blood outflow.

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