Idiopathic fistula-in-ano

Area of Science:

• Gastroenterology
• Colorectal Surgery
• Proctology

Background:

• Fistula-in-ano represents the most frequent type of perineal sepsis.
• Management involves infection control, precise assessment of the fistula track relative to the anal sphincter, and definitive treatment.
• Traditional fistulotomy raises concerns regarding post-operative incontinence, leading to the exploration of sphincter-preserving alternatives.

Purpose of the Study:

• To review current management modalities for idiopathic fistula-in-ano.
• To discuss various surgical techniques, including sphincter-preserving options.
• To highlight the challenges in establishing a definitive treatment algorithm.

Main Methods:

• Review of existing literature on fistula-in-ano management.
• Evaluation of descriptive and comparative studies on different surgical techniques.
• Analysis of outcomes and limitations of current treatment approaches.

Main Results:

• Fistulotomy remains a common approach, but sphincter-preserving techniques are increasingly utilized.
• Techniques include advancement flaps, fibrin glue, collagen fistula plugs, LIFT procedure, and stem cell therapy.
• Variable outcomes and a lack of high-level evidence hinder the establishment of a standard treatment protocol.

Conclusions:

• Idiopathic fistula-in-ano management is complex, with no single universally accepted algorithm.
• Sphincter-preserving techniques offer alternatives to fistulotomy, aiming to reduce incontinence.
• Further high-quality research with long-term follow-up is needed to guide optimal treatment strategies.