In this procedure, the internal anal sphincter is cut starting at its distal most end at the anal verge and extending into the anal canal for a distance equal to that of the fissure. This muscle complex, referred to as the external and internal anal sphincters, underlies and supports the anal canal. A topical medicine is one that you apply directly to the affected area. The side effects of nitroglycerin often are self-limited, that is, they become less with repeated use. During an exam, a doctor can also find out whether another condition may be causing the fissure. Analogous to the use of NTG intra-anal ointment, nifedipine ointment is also available for use in clinical trials. Moreover, ultrasound studies that measure the flow of blood showed that the posterior anal canal had less than half of the blood flow of other parts of the canal.
Anal Fissure What is an anal fissure? An anal fissure is a tear in the lining of the lower rectum (anal canal) that causes pain during bowel movements. Jul 06, · Hi all. I thought that I would post this as a lot of people appear to be going through the same agony that I was going through for over a year. Anyway, I was at uni. Local treatment of a chronic anal fissure with diltiazem vs. nitroglycerin. A comparative study Tratamiento local de la fisura anal crónica con diltiazem vs.