Guo Z, Wang W, Xie D, Lin R. Effect of supplemental dexmedetomidine in interventional embolism on cerebral oxygen metabolism in patients with intracranial aneurysms.
J Int Med Res 2021;
49:3000605211002960. [PMID:
33823639 PMCID:
PMC8033473 DOI:
10.1177/03000605211002960]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Objective
To investigate the effect of supplemental dexmedetomidine in interventional
embolism on cerebral oxygen metabolism in patients with intracranial
aneurysms.
Methods
Ninety patients who underwent interventional embolism of intracranial
aneurysms were equally divided into Group A and Group B. In Group A,
dexmedetomidine was injected intravenously 10 minutes before inducing
anesthesia, with a loading dose of 0.6 µg/kg followed by 0.4 µg/kg/hour.
Group B received the same amount of normal saline by the same injection
method. Heart rate (HR), mean arterial pressure (MAP), arterial–jugular
venous oxygen difference [D(a-jv) (O2)], cerebral oxygen
extraction [CE (O2)], and intraoperative propofol use were
recorded before inducing anesthesia (T0) and at five time points
thereafter.
Results
The amount of propofol in Group A was lower vs Group B. At all five time
points after T0, HR, MAP, D(a-jv) (O2), and CE
(O2) in Group A were significantly lower vs Group B, with
significant differences for jugular venous oxygen saturation
(SjvO2) and the oxygen content of the internal
jugular vein (CjvO2) between the groups.
Conclusion
Dexmedetomidine resulted in less intraoperative propofol, lower D(a-jv)
(O2) and CE (O2), and improved cerebral oxygen
metabolism.
Collapse