Analysis of phase interactions between heart rate variability, respiration and peripheral microhemodynamics oscillations of upper and lower extremities in human

Previous studies have explored the relationship between the complexity of local blood flow signals and heart rate variability (HRV) under different thermal stimulations. However, the relationship between the complexity of local blood flow signals and HRV in different positions is not clear. In this study, healthy participants were placed in different body positions. The bilateral blood flux and ECG were monitored, and refined composite multiscale entropy (RC MSE) and refined composite multiscale fuzzy entropy (RC MFE) were used to measure the complexity of the local blood flux. The sample entropy was calculated to evaluate the HRV complexity. The change of body position did not affect the time domain or frequency domain of HRV, but did reverse the blood flux laterality of the lower extremities. Furthermore, there was a negative correlation between the complexity of right-side blood flux and sample entropy of HRV when the participant was in the -10 degrees position. These results provide a new perspective of the relationship between skin blood flux signals and cardiac function.

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Infusion therapy in complex outpatient rehabilitation of patients with obliterating atherosclerosis of arteries of the lower extremities

Kazan medical journal ◽

10.17816/kmj2348 ◽

2012 ◽

Vol 93 (2) ◽

pp. 386-388

Author(s):

V V Fattakhov ◽

M N Nasrullaev ◽

N V Maksumova

Keyword(s):

Heart Rate ◽

Heart Rate Variability ◽

Screening Method ◽

Lower Extremities ◽

Outpatient Setting ◽

Outpatient Rehabilitation ◽

Infusion Therapy ◽

Functional Changes ◽

Rehabilitation Programs ◽

Leading Role

Infusion therapy in the outpatient setting holds the leading role in the treatment of patients with stages IIA and IIB of obliterating atherosclerosis of the lower extremities. In order to assess the risk of complications of infusion therapy used was a screening method for the analysis of heart rate variability using a complex of diagnostic functional changes in the cardiac rhythm, «Kardioanalizator “Expert 01”». Identification of patients taking into account the vegetative status according to heart rate variability (sympathetic-, normo- or parasympathotonia) makes it possible to adequately form group and individual rehabilitation programs, to determine the amount and time of treatment procedures, to predict possible complications. Infusion therapy, restoration of macro- and microcirculation is the basis of the effectiveness of rehabilitation programs for chronic arterial insufficiency of the extremities. In the implementation of treatment and rehabilitation programs the combination of arterial and venous systems disorders should be taken into account, as well as the need for concurrent correction of these changes.

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