• T Nagaro, C Shimizu, H Inoue, T Fujitani, N Adachi, K Amakawa, S Kimura, T Arai, T Watanabe, and S Oka.
• Department of Anesthesiology & Resuscitology, Ehime University School of Medicine.
• Masui. 1995 Jun 1; 44 (6): 862-7.

AbstractWe examined the efficacy of systemic local anesthetics on various types of neuropathic pain in 89 patients. Lidocaine 1.5 mg.kg-1 was infused intravenously for one minute. Pain score (PS) by visual analogue scale (VAS, 0-10) was measured 1, 5, 15 and 35 min after the infusion. The efficacy of intravenous lidocaine was evaluated by PS which was lowest after infusion. PS decreased to less than 50 percent of pre-infusion value in more than 75 percent of cases of cancer pain, postherpetic neuralgia, trigeminal neuralgia, low back pain with signs of root pain or spinal canal stenosis, peripheral nerve injury and thalamic pain, in 50-75 percent of cases of herpetic neuralgia, and in less than 50 percent of cases of cervical spondylosis, spinal cord injury, reflex sympathetic dystrophy, causalgia and psychogenic pain. This study suggests that systemic local anesthetics is effective in neuropathy due to cancer pain, postherpetic neuralgia, trigeminal neuralgia, low back pain with signs of root pain or spinal canal stenosis, peripheral nerve injury and thalamic pain.

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