Dynamic state of rheoencephalography during procedure of hyperbaric oxygen therapy
10.3760/cma.j.issn.1671-8925.2013.08.016
- VernacularTitle:高压氧治疗全程脑血流图的动态观察分析
- Author:
Hong-Jun WANG
1
;
Qi-Biao WENG
;
Ling-Zhen CHEN
;
Xue-Lin CHEN
;
Xiao-Jing ZHANG
;
Xiao-Wen WANG
;
Na YIN
Author Information
1. 南方医科大学珠江医院高压氧科
- Keywords:
Hyperbaric oxygen;
Rheoencephalography;
Vascular resistance;
Vascular tension
- From:
Chinese Journal of Neuromedicine
2013;12(8):823-826
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the brain cerebrovascular function and blood flow changes in patients with brain diseases during hyperbaric oxygen therapy of different states to provide evidence for their clinical treatment.Methods Forty-nine patients with brain diseases,admitted to our hospital from November 2010 to May 2011,were chosen in our study; their rheoencephalography data captured during a complete hyperbaric oxygen therapy of 4 different states were collected and compared; these 4 states were:state Ⅰ,before pressure raising,which could also be the beginning of the therapy; state Ⅱ,before oxygen intake while pressure coming to a stable level; state Ⅲ,40 min after oxygen uptake; and state Ⅳ,while the pressure inside the chamber coming back to normal level.Results Carotid artery and vertebrobasilar system enjoyed likely changes.Parameters of rheoencephalography showing cerebral blood flow changes,including impedance,raising time,total retraction time and high turn ratio,did not show any differences among the four states (P＞0.05),those showing vascular tension and elasticity,including elasticity index,angle of increasing,top angle of peak value,filling time and amplitude,showed statistically significant difference between each 2 states (P＜0.05),and those showing cerebral vascular resistance,such as resistance index,rising time and high turn ratio,showed significant difference between each 2 states (P＜0.05).Conclusion The hyperbaric oxygen therapy has little effect on changing the brain blood flow; it mainly functions as controlling the impedance and extending the contraction of brain vascular.
