scholarly journals The influence of local pressure on evaluation parameters of skin blood perfusion and fluorescence

2017 ◽  
Author(s):  
E. A. Zherebtsov ◽  
K. Y. Kandurova ◽  
E. S. Seryogina ◽  
I. O. Kozlov ◽  
V. V. Dremin ◽  
...  
Keyword(s):  
Blood Perfusion ◽  
Local Pressure ◽  
Skin Blood Perfusion ◽  
Evaluation Parameters

scholarly journals Laterality of Blood Perfusion in the Lower Extremities after Drinking Saline at Different Temperatures

2020 ◽  
Author(s):  
Shuyong Jia ◽  
Qizhen Wang ◽  
Hongyan Li ◽  
Xiaojing Song ◽  
Shuyou Wang ◽  
...  
Keyword(s):  
Cold Water ◽  
Lower Extremities ◽  
Blood Perfusion ◽  
Dominant Frequency ◽  
Frequency Interval ◽  
Laterality Index ◽  
Skin Blood Perfusion ◽  
Before And After ◽  
Different Temperatures ◽  
Weak Negative Correlation

Abstract Background: Skin blood flux (SkBF) changes caused by drinking cold water are generally associated with vagal tone and osmotic factors in the digestive system. However, the distribution and regulation of bilateral blood flow are not symmetrical but exhibit a certain laterality. The aim of this study was to analyze the laterality of SkBF after drinking saline (0.9%) at different temperatures by monitoring blood flux in the bilateral lower extremities.Methods: A total of 60 subjects were recruited for this study, and all subjects completed all measurements. Subjects were randomly divided into a 4 °C group, 10 °C group and 30 °C group. For every subject, skin blood perfusion of bilateral Zusanli acupoints (ST 36) was recorded simultaneously before and after drinking 500 ml of 0.9% saline using a PeriFlux System 5000. The electrogastrogram (EGG) was also monitored, and the dominant frequency of the EGG and heart rate variability were analyzed.Results: The results indicated that after drinking saline at different temperatures, the laterality index of SkBF at the lower extremities was different. Drinking 30 °C saline can increase the laterality index of the lower extremities. Stimulation at 4 °C and 10 °C resulted in a decrease in the DF of the EGG and an increased RMSSD of the RR interval. Although this laterality is mainly contributed to by frequency interval V, there was a weak negative correlation between the laterality index of frequency interval I or II and RMSSD.Conclusion: There was laterality of blood perfusion in the lower extremities after drinking saline at different temperatures.

scholarly journals Comparative pilot study on the effects of pulsating and static cupping on non-specific neck pain and local skin blood perfusion

2018 ◽  
Vol 5 (4) ◽  
pp. 400-410 ◽  
Author(s):  
Yang Yang ◽  
Liangxiao Ma ◽  
Tingli Niu ◽  
Junxiang Wang ◽  
Yue Song ◽  
...  
Keyword(s):  
Pilot Study ◽  
Neck Pain ◽  
Blood Perfusion ◽  
Local Skin ◽  
Skin Blood Perfusion

scholarly journals Facial skin blood perfusion change based liveness detection using video images

2019 ◽  
Vol 102 (6) ◽  
pp. 42-51
Author(s):  
Kazutoshi Ukai ◽  
Rashedur Rahman ◽  
Syoji Kobashi
Keyword(s):  
Blood Perfusion ◽  
Facial Skin ◽  
Liveness Detection ◽  
Video Images ◽  
Skin Blood Perfusion

scholarly journals H1-antihistamines suppress wheal-and-flare reaction and skin blood perfusion measured by Laser Dopppler flowmetry: randomized, double-blind, placebo-controlled, crossover design study

2010 ◽  
Vol 64 (5-6) ◽  
pp. 175-181
Author(s):  
Māris Bukovskis ◽  
Madara Tirzīte ◽  
Gunta Strazda ◽  
Normunds Jurka ◽  
Renāte Ligere ◽  
...  
Keyword(s):  
Blood Perfusion ◽  
Sedative Effect ◽  
Crossover Design ◽  
Design Study ◽  
Double Blind ◽  
Double Blind Placebo ◽  
Skin Blood Perfusion ◽  
H1 Antihistamines ◽  
Flare Reaction ◽  
Wheal And Flare

H1-antihistamines suppress wheal-and-flare reaction and skin blood perfusion measured by Laser Dopppler flowmetry: randomized, double-blind, placebo-controlled, crossover design study The aim of our study was to compare the influence of pre-treatment with H1-antihistamines (levocetirizine, desloratadine, clemastine, quifenadine, and sequifenadine) and a placebo on the histamine-induced weal and flare reaction, increase of skin blood perfusion and sedation. Thirty healthy volunteers were enrolled in the study. The study design was a prospective, randomised, double-blind, placebo-controlled, crossover, balanced clinical trial. Volunteers in randomised and double-blind order were treated with oral levocetirizine 5 mg, desloratadine 5 mg, clemastine 1 mg, quifenadine 50 mg, sequifenadine 50 mg or a placebo. Two hours after intake of medication, the histamine skin prick test was performed and skin blood perfusion was registered with further evaluation of sedative effect. We conclude that levocetirizine induced a significant and pronounced decrease of weal and flare reaction and skin blood perfusion compared to the placebo and the other H1-antihistamines. The effect of quifenadine and sequifenadine on weal reaction area was similar to desloratadine and clemastine. Regarding the sedative effect, we can conclude that second generation antihistamines appear to be not non-sedative but the least impairing, and the first generation antihistamines appear to be the most impairing on central nervous system function. There is a necessity to consider the sedating potential of antihistamines, along with other factors such as efficacy, when prescribing antihistamines to patients.

Laser Doppler Perfusion Imaging for Assessment of Skin Blood Perfusion After Acupuncture

2008 ◽  
Vol 20 (2) ◽  
pp. 109-118 ◽  
Author(s):  
Wei-bo Zhang ◽  
Ling-ling Wang ◽  
Tao Huang ◽  
Yu-ying Tian ◽  
Yi-hui Xu ◽  
...  
Keyword(s):  
Perfusion Imaging ◽  
Blood Perfusion ◽  
Laser Doppler ◽  
Laser Doppler Perfusion Imaging ◽  
Skin Blood Perfusion

scholarly journals Power Spectral Analyses of Index Finger Skin Blood Perfusion in Carpal Tunnel Syndrome and Diabetic Polyneuropathy

2011 ◽  
Vol 2011 ◽  
pp. 1-8
Author(s):  
Han-Wei Huang ◽  
I-Ming Jou ◽  
Chien-Kuo Wang ◽  
Pei-Yin Chen ◽  
Wen-Chi Wang ◽  
...  
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Carpal Tunnel ◽  
Blood Perfusion ◽  
Diabetic Polyneuropathy ◽  
Test Results ◽  
Doppler Flowmetry ◽  
Frequency Bands ◽  
Skin Blood Perfusion ◽  
Tunnel Syndrome ◽  
Power Dispersion

The main purpose of this study was to investigate the applicability of frequency domain analysis on laser Doppler flowmetry (LDF) data recorded from the index fingers of patients with carpal tunnel syndrome (CTS) and diabetic polyneuropathy (DPN). Patients with numbness of the palm were recruited and grouped according to the results of electrophysiological examinations into 2×2 groups by the existence or nonexistence of CTS and/or DPN. Skin blood perfusion was recorded by LDF in both the neutral position and the maximally flexed position (the Phalen test). -transformation was utilized to decompose the recorded data into frequency bands, and the relative band power and power dispersion were calculated. Analysis of variance was used to test the effects of DPN, CTS, and the Phalen test results. The results showed that (1) DPN decreased the absolute power and the relative power in some frequency bands in both positions and CTS increased the power dispersion of some frequency bands only during the Phalen test and (2) there was no difference in the LDF results between patients with positive or negative Phalen test results.

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