Intermittent Sequential Pneumatic Compression Improves Coupling between Cerebral Oxyhaemoglobin and Arterial Blood Pressure in Patients with Cerebral Infarction

Li, Wenhao; Xu, Gelin; Huo, Congcong; Xie, Hua; Lv, Zhen; Zhao, Haihong; Li, Zengyong

doi:10.3390/biology10090869

Cited by 6 publications

(3 citation statements)

References 52 publications

(68 reference statements)

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“…In this way, the effective connectivity network measured by coupling strength and coupling direction was established and applied to estimate the interaction between channels or functional cerebral areas. More details on the calculation method of effective connectivity can be found in previous studies [29,30].…”

Section: Effective Connectivity Index Analysismentioning

confidence: 99%

Cortical hemodynamic response and networks in children with cerebral palsy during upper limb bilateral motor training

Zhang

Huo

et al. 2023

Journal of Biophotonics

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Understanding the characteristics of functional brain activity is important for motor rehabilitation of children with cerebral palsy (CP). Using the functional near-infrared spectroscopy (fNIRS) technology, the cortical response and networks of prefrontal (PFC) and motor cortices (MC) were analyzed for children with CP and typical development (CTD). Compared with CTD, the resting cortical response of dominant MC in children with CP increased, and the functional connectivity between cerebral areas decreased. In the motor state of children with CP, the coupling strength started from dominant MC increased compared with resting state, and the hemispherical autonomy index (HAI) of the dominant MC was higher than that in the CTD, which reflected the leading role of dominant MC in brain regulation during motor. The functional connectivity between bilateral MC was positively correlated with motor performance.This study provided effective indices for evaluating the motor function and real-time impact of motor on brain networks.

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Section: Effective Connectivity Index Analysismentioning

confidence: 99%

Cortical hemodynamic response and networks in children with cerebral palsy during upper limb bilateral motor training

Zhang

Huo

et al. 2023

Journal of Biophotonics

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“…Слід зазна чити, що статистично вірогідні зміни ЧСС у відновленні в 1-й та 3-й групах зумовлені впливами симпатичної нервової системи на 5-10-й хвилині, а на 15-20-йпарасимпатичної нервової системи. У чоловіків 2-ї групи зменшення ЧСС може бути викликане опосередкованою відповіддю барорефлексу на підвищення СДАТ [12][13][14].…”

Section: результати та їх обговоренняunclassified

The Effect of Low-Intensity Intermittent Pneumatic Compression in Persons With Different Types of Regulation of the Autonomic Nervous System on Central Hemodynamics

Shesterina¹,

Palamarchuk²,

Kovalenko³

2023

Fiziol Zh

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The purpose of our study was to determine changes in central hemodynamics under the condition of exposure to low-intensity IPC on the lower limbs in individuals with different types of regulation of the autonomic nervous system. The group of 62 participants in age of 18-22 years were investigated. Testing session that included pressure of 40 mmHg and 20-minute period of temporary occlusion of the lower extremities was performed by intermittent pneumatic compression with Recovery Pump PRX device (“Mego Aftek AC Ltd”, Israel). Before, during the exposure and recovery period of the procedure arterial blood pressure was recorded with Korotkov’s auscultative method by mercury tonometer (“Dr.Frei”A-10, Switzerland). For monitoring hemodynamic changes impedance cardiography (ICG) method was applied (“ХАІ-medica”, Kharkiv, Ukraine), by 15 sec. Based on the spectrum power values in the range of 0.15-0.4 (HFnorm), which was calculated according to the formula HFnorm = HF/(HF+LF)∙100%, 3 groups of volunteers were determined by method of sigma deviations. The 1st group included 29 people with a predominance of the sympathetic link of regulation of the autonomic nervous system, HF norm at rest is less than 40 nu. The 2nd - 19 people with a normotonic type of regulation, HFnorm from 40 to 60 nu. The 3rd - 14 people with a predominance of the parasympathetic link, HF norms higher than 60 nu. It has been established that in persons of the 1st group blood pressure maintenance is a result of complex neurohumoral interactions, in the 3rd group - due to vascular components. The decrease in the heart rate and cardiac index in the 1st and 2nd groups is caused by a decrease in venous return to the heart, and in the 3rd group - by contractile function of the heart. The proven impact of non-invasive IPC on peripheral blood circulation improving supports the concept of orthostatic tolerance. Future long-term studies are needed to evaluate the further long-term efficacy of IPC, safety and tolerability of this approach in clinical practice.

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“…Recently, there has been growing interest in using coupling functions based on dynamic Bayesian inference to noninvasively assess cerebral autoregulation at rest. This approach has been utilized to evaluate cerebral autoregulation in stroke and hypertension patients [28,29]. Dynamic Bayesian inference can identify time-varying dynamics in the presence of noise and track the temporal evolution of relevant parameters.…”

Section: Introductionmentioning

confidence: 99%

Blood pressure‐cerebral oxygen coupling model: A new approach for stroke risk prediction

Zhang,

Li,

Zhang

et al. 2023

Journal of Biophotonics

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Stroke is a major cause of death and disability worldwide, but predicting its risk remains challenging. This study aimed to evaluate the cerebral blood flow autoregulation function of subjects with different stroke risk levels and predict their stroke risk. The coupling strength between cerebral oxygen and blood pressure signals was calculated by wavelet analysis and dynamic Bayesian inference and used as a quantitative index of cerebral blood flow autoregulation. A stroke prediction model based on the extreme random tree was constructed using the coupling strength and other data as input features. The results showed that the coupling strength was significantly higher in the high‐risk group than the other groups. Moreover, the prediction model achieved an average accuracy of 0.80 across the three groups.The coupling strength of cerebral oxygen and blood pressure can be used as an objective index to predict stroke risk, which has implications for stroke prevention and intervention.This article is protected by copyright. All rights reserved.

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Intermittent Sequential Pneumatic Compression Improves Coupling between Cerebral Oxyhaemoglobin and Arterial Blood Pressure in Patients with Cerebral Infarction

Cited by 6 publications

References 52 publications

Cortical hemodynamic response and networks in children with cerebral palsy during upper limb bilateral motor training

Cortical hemodynamic response and networks in children with cerebral palsy during upper limb bilateral motor training

The Effect of Low-Intensity Intermittent Pneumatic Compression in Persons With Different Types of Regulation of the Autonomic Nervous System on Central Hemodynamics

Blood pressure‐cerebral oxygen coupling model: A new approach for stroke risk prediction

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