Abstract
Visceral pain transmitted by fibers of the sympathetic nervous system in the perineal and pelvic area, whether of benign or malignant etiology, can be effectively treated with neurolysis of the ganglion of Walther, also known as the ganglion impar or sacrococcygeus ganglion. Other possible indications for this technique are shooting anal pain and enteritis. This blockade can rarely eliminate somatic pain or neuropathic features. After this technique has been performed, the required dose of opioid and non-opioid analgesic agents is usually substantially reduced, leading to relief of adverse effects and maximizing analgesic action. The performance of this percutaneous technique can be considered to be of low complexity and with minimal side effects. We describe five cases of pelvic, perineal and coccygeal pain of different etiologies and poor response to conventional drug treatment, as well as the response and clinical course of these patients after completion of ganglion impar blockade with radiofrequency, local anesthetics and phenol neurolysis.
Published Version
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