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Korean Journal of Anesthesiology 1988;21(5):724-731.
DOI: https://doi.org/10.4097/kjae.1988.21.5.724   
The Effects of Intravenous Lidocaine on Cardiovascular Changes by the use of Tourniquet under Anesthesia .
Mi Ran Shin, Guie Yong Lee, Choon Hi Lee
Department of Anesthesiology, College of Medicine, Ewha Womans University, Seoul, Korea.
Abstract
Tourniquets were used for adequate hemostasis and good for operative field of the upper and lower extremities surgery. However, hypertension and tachycardia developed in patients undergoing lower limb surgery with the use of a tourniquet under anesthesia. This study was undertaken to evaluate the effectiveness of intravenous lidocaine for the hemodynamic changes with using a tourniquet under anesthesia. The results were as follows: 1) Heart rate was increased significantly 30 min after the use of tourniquet in all groups except group 4( lidocaine bolus with infusion group) and then in group 4 heart rate was decreased significantly 30 min after the use of tourniquet.(U=53(8,8); p<0.05) 2) Mean arterial pressure was increased in all groups 30 min after the application of the tourniquet. Also there was not any significant difference among the all groups. Blood pressure was returned to control values in 5 min after the deflation of the tourniquet. 3) During spinal anesthesia, heart rate and mean arterial pressure was decreased significantly in 30 min after the application of the tourniquet. (U=63(8,10); p<0.05, U=63(8,10); p<0.005). It is suggested that spinal anesthesia(T10>) is better anesthetic technique than general anesthesia in patients undergoing lower limb surgery with the use of a tourniquet. With the administration of intravenous lidocaine under general anesthesia, hemodynamic changes by inflating tourniquet were depressed.
Key Words: Tourniquet; Lidocaine


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