Local anesthesia in anal surgery. Technical note and immediate results

The authors report their experience with the use of local anesthesia in anal surgery (hemorrhoids, anal fissures and fistulas). They describe their technique in detail, stressing the importance of thorough knowledge of the neuroanatomy of the anal canal and of a stepwise blockage of all sensory and motor fibers to the area. They report their results on 300 anal procedures performed under local anesthesia, with good patient acceptance.