Effects of lidocaine on cerebral oxygen supply-consumption balance and hemodynamics during anesthesia induction in patients with supratentorial tumor

Abstract

Abstract: Objective To study the effects of lidocaine on the balance between cerebral oxygen supply-consumption and on the hemodynamics during anesthesia induction in patients with supratentorial tumor. Methods Twenty-four patients with supratentorial tumor were randomly divided into lidocaine group (n=12) and control group (n=12). Blood gas analysis and determinations of plasma lactic acid and glucose in the radial artery and internal jugular venous bulb were performed. Oxygen extraction ratio (OER) and blood oxygen content in the artery and internal jugular venous bumb were calculated during anesthesia induction. Results OER and difference declined in plasma lactic acid level between the internal jugular venous bulb and the artery, and blood oxygen saturation as well as blood oxygen pressure in the internal jugular venous bulb and the artery increased along with blood oxygen content in the internal jugular venous bulb in both groups during anesthesia induction. Comparison between the groups showed that only the changes in blood oxygen pressure in the internal jugular venous bulb were statistically significant. Changes in the hemodynamics in lidocaine group were less obvious than those in the control group during anesthesia induction. Conclusion Lidocaine does not significantly influence cerebral oxygyen balance and may effectively inhibit hemodynamic response during anesthesia induction in patients with supratentorial tumor.

CLC Number:

R614.1

LI Shen-yi¹, XU Shi-yuan¹, YE Xiao-ping¹, XU Rui¹, YU Nan², XU Ping¹, HOU Jing-li¹. Effects of lidocaine on cerebral oxygen supply-consumption balance and hemodynamics during anesthesia induction in patients with supratentorial tumor[J]. Journal of Southern Medical University, 2004, 24(02): 223-225.

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