Articles: neuralgia.
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A number of chronic pain syndromes in the perineal area can be related to pudental nerves suffering. The constancy of symptoms among various patients, and in duration for a particular one, alterations revealed by electrophysiologic studies, pain relief by diagnostic blocks, data from anatomic studies, preliminary results of medical and surgical applied therapies, give consistent arguments for possible organic lesions of pudental nerves.
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Thirty-eight consecutive patients with neuralgia after peripheral nerve injury were treated with one or two series of peripheral local anesthetic blocks. All patients experienced an initial total relief of ongoing pain for 4-12 h. Evoked pain (hyperalgesia or allodynia), which occurred in 17 patients, was blocked simultaneously with the spontaneous pain. ⋯ Thus these experiments provided no evidence in support of this hypothesis. Various alternative peripheral and central mechanisms are discussed. Further studies specifically directed to these alternatives and with longitudinal controls are prompted.
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A 58 year old man had been suffering from intractable left ophthalmic post herpetic neuralgia (PHN) for 7 years. He has also been treated for polyarteritis nodosa for 10 years. For pain relief, he was treated initially with frequent (4 times a day) stellate ganglion block (SGB) and peripheral ophthalmic nerve block for a month without relief. ⋯ Several days before the block, electric stimulation to control his pain was tested. Stimulation with the electricity (4.5 mA, 10 cycle and 400 microseconds) brought him complete relief from the pain during the stimulation. Trigeminal SEP showed no response to the stimulation of injured skin.
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We discuss the latest findings regarding the therapy of acute herpes zoster and postherpetic neuralgia. Aside from the conventional modes of treatment. We especially refer to the therapy with aciclovir. In addition, we present the techniques of transcutaneous electrostimulation and neurosurgery.