fistula

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fistula

(fĭs`cho͝olə), abnormal, usually ulcerous channellike formation between two internal organs or between an internal organ and the skin. It may follow a surgical procedure with improper healing, or it may be caused by injury, abscess, or infection with penetration deep enough to reach another organ or the skin. When open at only one end it is called an incomplete fistula or sinus. The most common sites of fistula are the rectum and the urinary organs, but almost any part of the body may be affected. Rectal fistulas are often associated with colitis, cancercancer,
in medicine, common term for neoplasms, or tumors, that are malignant. Like benign tumors, malignant tumors do not respond to body mechanisms that limit cell growth.
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, sexually transmitted diseasessexually transmitted disease
(STD) or venereal disease,
term for infections acquired mainly through sexual contact. Five diseases were traditionally known as venereal diseases: gonorrhea, syphilis, and the less common granuloma inguinale, lymphogranuloma venereum, and
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, and other disorders. Usually a fistula requires surgery. In horses an abscess on the withers from chafing and infection is termed a fistula.

Fistula

 

an abnormal passage between hollow organs or between an organ, body cavity, or focus of disease and the body surface. Usually in the form of a narrow canal lined with epithelium or granulations, it continuously discharges pus, mucus, bile, urine, or feces.

Congenital fistulas, for example, umbilical fistulas, are developmental anomalies. Acquired fistulas result from such chronic inflammations as osteomyelitis, from tumors, or from injuries. Fistulas are usually treated by surgery.

It is sometimes necessary to create artificial fistulas surgically. They may connect hollow organs, in which case they are called internal fistulas, or anastomoses. An example is gastroenteroanastomosis in cicatricial stenosis of the outlet of the stomach.

Gastrostomy is the establishment of an external fistula, or stoma, for artificial feeding. External fistulas also permit the discharge of urine or feces. For example, cystostoma is a fistula of the urinary bladder formed when the urethra is compressed by a tumor. With external fistulas, care must be taken to avoid irritating or infecting the surrounding skin.

REFERENCE

Struchkov, V. I. Gnoinaia khirurgiia, 2nd ed. Moscow, 1967.

fistula

[′fis·chə·lə]
(medicine)
An abnormal congenital or acquired communication between two surfaces or between a viscus or other hollow structure and the exterior.

fistula

In ancient Roman construction, a water pipe of lead or earthenware.

fistula

Pathol an abnormal opening between one hollow organ and another or between a hollow organ and the surface of the skin, caused by ulceration, congenital malformation, etc.
References in periodicals archive ?
In literature many surgical flaps were mentioned for closure of oroantral fistula.
BFP can be used alone also for closure of oroantral fistula, it has advantage that it does not alter the vestibular depth but in large defects there are chances of failure due to tension and insufficient volume.
Double-layered closure of oroantral fistula using buccal fat pad and buccal advancement flap.
10 In this case series, buccal fat pad was used to reconstruct partial maxillectomy defects, oroantral fistula, defects of cheek mucosa, maxillary tuberosity and retromolar area.
De Moraes12 also reported a case in which buccal fat pad was utilized to seal an oroantral fistula in the same surgical step used for zygomatic implant technique.
17 It is considered the primary choice for repair of oroantral fistula by some surgeons, whereas others like Samman et al18 justify its use only in cases where the buccal advancement flap is damaged and can be used as a primary option.
Closure of oroantral fistula through a combined use of buccal fat pad and buccal advancement flap is a safe and reliable method, with few complications and provides an adequate barrier to withstand a mild degree of sinus inflammation which is invariably present in the setting of an oroantral fistula.
Fractured tooth roots were visualized in tooth socket 14, but no obvious oroantral fistula was seen.
The study was carried out on 60 patients with oroantral fistula reported to the Department of Oral and Maxillofacial Surgery, Khyber College of Dentistry Peshawar from Aug 2004 to Aug 2007.
1 Oroantral communication and subsequent formation of oroantral fistula is a common complication of dental extraction of maxillary molars2.
Key Words: Oroantral fistula, buccal advancement flap, chronic sinusitis.
Oroantral communication followed by oroantral fistula (OAF) is a rare surgical complication in oral and maxillofacial surgery.