Effects of acupuncture on the relationship between cerebral hemodynamics and arterial blood pressure in patients with hypertension

Medicine in Novel Technology and Devices

Zengyong Li¹  Hongmei Liu¹  Gongcheng Xu¹  Wenhao Li²  Tengyu Zhang²  Congcong Huo² 

[1] Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100083, China;Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, 100191, Beijing, China;

关键词: Arterial blood pressure;    Cerebral hemodynamics;    Hypertension;    Auricular acupuncture intervention;   

DOI  :  

来源: DOAJ

【 摘 要 】

The present study aimed to investigate the effect of an auricular acupuncture intervention on the relationship between changes in oxyhemoglobin concentration (Δ [O2Hb]) and arterial blood pressure (ABP). The cerebral oxygenation signals in the bilateral prefrontal cortex (PFC), sensorimotor cortex (SMC), and temporal lobe cortex (TLC) of 15 patients with hypertension were measured by a 24-channel functional near-infrared spectroscopy (fNIRS) device before (State_R) and after (State_AT) the auricular acupuncture intervention. Coupling strength was used to quantitatively evaluate the strength of the couplings between ABP and Δ [O2Hb] in low-frequency oscillations (LF, 0.07–0.2 ​Hz) and very-low-frequency oscillations (VLF, 0.02–0.07 ​Hz). Results showed that the changes in wavelet amplitudes in the LF and VLF intervals did not exhibit significant differences after auricular acupuncture. The coupling strength from ABP to Δ [O2Hb] was significantly lower in the LF range after auricular acupuncture in the bilateral PFC, SMC, and TLC (p ​< ​0.0083). Additionally, the coupling strength from ABP to Δ [O2Hb] in the VLF range was significantly lower in the bilateral PFC in State_AT than in State_R (p ​< ​0.0083). These results indicated that fNIRS together with ABP can effectively evaluate cerebral hemodynamic responses to interventions and is therefore capable of guiding more individualized acupuncture strategies. The auricular acupuncture intervention improved hemodynamic responses in patients suffering from hypertension.

【 授权许可】

Unknown