Anal Fistula An anal fistula is commonly known as Fistula-in-ano as it is frequently the result of a previous or current anal abscess. An anal abscess is an infected cavity filled with pus found near the anus or rectum. The fistula is the tunnel that structures under the skin and interfaces the stopped up infected organs to a abscess. A fistula can be available with or without an abscess and may join just to the skin of the buttocks near the anal opening. Microscopic organisms, fecal material or foreign matter can obstruct a butt-centric organ and passage into the tissue around the anul or rectum, where it might then gather in a cavity called an abscess.
Anal Fistula is classified by two categories. 1) By their location in relation to the structures comprising and surrounding the anus and rectum. on this basis, it is subclassified as perianal, ischioanal, intersphincteric and supralevator area. 2) By their relationship to parts of the anal sphincter complex: They are subclassified as intersphincteric, transsphincteric, suprasphincteric and extrasphincteric. Anorectal pain, swelling, perianal cellulitis (redness of the skin) and fever are the most common symptoms of an abscess. Occasionally, rectal bleeding or urinary symptoms, such as trouble initiating a urinary stream or painful urination, may be present.
The surgery may be performed in the meantime as waste of a abscess, once in a while the fistula doesn't show up until weeks or years after the starting drainage. Fibrin glue injection is one such alternative, in which fibrin glue is infused into the fistula tract to decimate the tract with the expectation of getting to be joined in the encompassing tissue. An endoanal advancement flap is a strategy generally held for complex fistulas or for patients with an expanded potential danger for affliction incontinence from a conventional fistulotomy. Another non-sphincter dividing treatment for anal fistula is the LIFT (ligation of the intersphincteric fistula tract) strategy.
Data from a 1979 Ambulatory Care Survey of the National Center of Health Statistics listed 24â��000 individuals with the diagnosis of fistula-in-ano. This corresponds to the incidence of 8.6 per hundred thousand per year reported by Sainio in 1984 in the city of Helskini. Another similarity seen in these studies is the 2:1 ratio of men to women in both the US and Finland. A more current analysis of data from Europe has been performed by Zanotti in 2007, where queries of databases in the UK, Spain, Germany and Italy showed an incidence ranging from 1.04 per 10â��000 in Spain to 2.32 per 10â��000 in Italy.