5Tanaka M, Goyagi T, Kimura T, et al. The effects of cervical and lumbar epidural anesthesia on heart rate variability and spontaneous sequence baroreflex sensitivity. Anesth Analg, 2004,99 : 924-929.
6Introna RP, Montano N, Yodlowski EH, et al. Low-frequency component of heart rate variability. Anesthesiology, 1995, 83:884 -887.
7Kim YK, Hwang GS, Huh IY, et al. Altered autonomic cardiovascular regulation after combined deep and superficial cervical plexus blockade for carotid endarterectomy. Anesth Analg, 2006,103 :533-539.
8Koscielniak-Nielsen ZJ, Hesselbjerg L, Fejlberg V. Comparison of transarterial and multiple nerve stimulation techniques for an initial axillary block by 45ml of mepivacaine 1% with adrenaline. Acta Anaesthesiol Seand, 1998,42 :570-575.
9Vester Andersen T, Husum B, Lindeburg T, et al. Perivascular axillary block Ⅳ: blockade following 40, 50 or 60ml of mepivacaine 1% with adrenaline. Acta Anaesthesiol Scand, 1984,28:99-105.
10Partridge BL, Katz J, Benirschke K. Functional anatomy of the brachial plexus sheath:implications for anesthesia. Anesthesiology, 1987,66 :743-747.