Efeito da nifedipina gel 0,2% nas pressões de canal anal e na dor pós-operatória: estudo após hemorroidectomia pela técnica aberta

INTRODUCTION: Hemorrhoids are very common and pain following their surgical treatment causes great suffering. Various alternatives have been studied for reducing postoperative pain. Among these is surgical sphincterotomy, which may in some cases cause some degree of fecal incontinence. For this reas...

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Bibliographic Details
Authors: Cesar, Maria Auxiliadora Prolungatti, Klug, Wilmar Artur, Bassi, Deomir Germano [UNIFESP], Paula, Pedro Roberto De [UNIFESP], Cesar, Rosana Prolungatti, Ortiz, Jorge Alberto, Speranzini, Manilio Basilio
Format: article
Status:Published version
Publication Date:2007
Country:Brasil
Institution:Universidade Federal de São Paulo (UNIFESP)
Repository:Repositório Institucional da UNIFESP
Language:Portuguese
OAI Identifier:oai:repositorio.unifesp.br:11600/4015
Online Access:http://dx.doi.org/10.1590/S0101-98802007000400002
http://repositorio.unifesp.br/handle/11600/4015
Access Level:Open access
Keyword:Nifedipine
Manometry
Anal canal
Hemorrhoids
Postoperative pain
operative surgical procedures
Nifedipino
Manometria
Canal anal
Hemorróidas
Dor pós-operatória
procedimentos cirúrgicos operatórios
Description
Summary:INTRODUCTION: Hemorrhoids are very common and pain following their surgical treatment causes great suffering. Various alternatives have been studied for reducing postoperative pain. Among these is surgical sphincterotomy, which may in some cases cause some degree of fecal incontinence. For this reason, several studies have used chemical sphincterotomy, with nifedipine, diltiazem, glycerin trinitrate or botulinum toxin. The objective of the present study was to investigate the effects of topical nifedipine for reducing anal canal pressures and consequently reducing postoperative pain. MATERIAL AND METHOD: Topical gels of 0.2% nifedipine plus 2% lidocaine (Group 1) and 2% lidocaine alone (Group 2) were used following hemorrhoidectomy. Pressures were measured before the operation and on the first, fourth and seventh days after the operation. Pain was also evaluated on all of the first seven postoperative days using a visual analog scale. RESULTS: There were no differences in relation to anal canal pressures, but lower pain levels were reported in the group that received nifedipine. CONCLUSION: Nifedipine gel was efficient for postoperative analgesia, but did not alter anal canal pressures.

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