Viscous lidocaine as a posthemorrhoidectomy analgesic

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Abstract
During hemorrhoidectomy, a standard 16-gauge plastic catheter was sutured to the operative site so that analgesic doses of viscous lidocaine solution could be delivered to the site for the first 36 h postoperatively. Although 14 patients had urinary retention that necessitated catheterization, no complication was attributed to the analgesic method. Of 227 patients, 92% were treated with this method plus orally administered nonnarcotic analgesics. Viscous lidocaine injected into the anus may provide safe, convenient analgesia following hemorrhoidectomy. Toxic reactions to lidocaine were not a problem because doses were small and the drug was used intermittently for 36 h.

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