Current Therapy of Cryptoglandular Anal Fistula: Gold Standards and Alternative Methods

Area of Science:

• Colorectal Surgery
• Gastroenterology
• Proctology

Background:

• Cryptoglandular anal fistulas are common colorectal conditions affecting approximately 20/100,000 individuals.
• These fistulas represent an inflammatory tract between the anal canal and perianal skin, often stemming from anorectal abscesses or chronic infections.

Purpose of the Study:

• To review current surgical treatment strategies for cryptoglandular anal fistulas.
• To discuss the balance between fistula healing and the preservation of anal sphincter function.
• To highlight factors influencing postoperative continence and the importance of specialized surgical centers.

Main Methods:

• Review of established and alternative surgical techniques for anal fistula treatment.
• Discussion of primary fistulotomy, seton drain insertion, fistulectomy, and sphincter-preserving methods like mucosal or advancement flaps.
• Consideration of alternative treatments including clips, fibrin injections, fistula plugs, ligatures, and laser procedures.

Main Results:

• Surgical intervention is the primary treatment for anal fistulas.
• Distal fistulas are typically excised, while proximal and complex fistulas benefit from sphincter-preserving techniques.
• Fistula morphology, prior surgeries, patient gender, and pre-existing sphincter dysfunction impact treatment outcomes and continence prognosis.

Conclusions:

• Treatment selection for anal fistulas involves a compromise between definitive healing and potential continence risks.
• Expertise in proctology is crucial, especially for complex cases or patients with a history of prior operations.
• Specialized proctological centers are recommended for managing complex anal fistulas and ensuring optimal patient care.