Living with the persistent discomfort, discharge, and pain of an anal fistula can significantly impact your quality of life. For many patients in Singapore, a key concern when considering surgery is the recovery time and the potential risk of faecal incontinence associated with traditional methods.
Fortunately, anal fistula laser treatment, specifically Fistula-tract Laser Closure (FiLaC™), has emerged as a sphincter-preserving alternative available at selected surgical centres in Singapore.
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What Exactly Is an Anal Fistula?
An anal fistula is a small tunnel that develops between the end of the bowel and the skin near the anus. In Singapore, most cases arise from a previous perianal abscess that did not heal properly.
Traditional surgical approaches, such as a fistulotomy, often involve laying open the fistula tract, which may include dividing a portion of the sphincter muscle. While effective, this carries a risk—particularly in more complex cases—of affecting bowel control.
Understanding Anal Fistula Laser Treatment (FiLaC)
Anal fistula laser treatment is a minimally invasive surgical technique designed to treat the fistula tract while preserving the anal sphincter muscles.
How the Procedure Works
The FiLaC procedure is typically performed under general or regional anaesthesia and is often done as a day surgery. The process involves:
- Cleaning the tract: The surgeon identifies the fistula tract and removes infected tissue or debris.
- Laser application: A flexible laser fibre is inserted into the tract.
- Controlled closure: As the fibre is slowly withdrawn, it emits radial laser energy (360°), causing the tract to shrink, collapse, and seal.
Why Patients in Singapore May Consider Choosing Laser Treatment
Patients may consider laser-based approaches due to several potential advantages over conventional surgery.
1. Preservation of Continence
FiLaC is a sphincter-preserving technique. As it avoids cutting the muscle, the risk of post-operative incontinence is generally lower compared to traditional fistulotomy.
2. Faster Recovery
Laser treatment typically results in smaller wounds, which may lead to less post-operative discomfort and a quicker return to daily activities.
3. Minimal Scarring
The procedure is performed through the existing fistula opening, with no large external incisions.
Clinical Considerations and Success Rates
While anal fistula laser treatment can be effective, not all fistulas are suitable for FiLaC. Complex or branching fistulas may require a staged approach, sometimes involving placement of a seton (a surgical thread) before definitive treatment.
During consultation, your doctor may recommend imaging such as an endoanal ultrasound or MRI to assess the fistula anatomy and determine the most appropriate treatment.
Reported success rates for FiLaC vary, typically ranging from 70% to 75%, depending on the complexity of the fistula and patient factors. In some cases, repeat treatment may be required.
Specialists You May Consider
Choosing an experienced colorectal surgeon is an important step towards effective treatment. Singapore has a number of specialists trained in minimally invasive and laser-based techniques.
Dr Chong Choon Seng 张峻诚医生
[SG] Featured Doctor
Featured Story
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Frequently Asked Questions (FAQs)
1. Is laser treatment for anal fistula painful?
The procedure itself is performed under anaesthesia, so you will not feel pain during surgery. Post-operatively, many patients report less discomfort compared to traditional surgery due to the absence of a large open wound.
2. Will I need to stay in the hospital overnight?
In many cases, the procedure is performed as day surgery, allowing you to return home on the same day, depending on your recovery and your doctor’s advice.
3. How soon can I return to work after FiLaC?
Some patients return to light duties within a few days, although recovery time varies. Strenuous activities should generally be avoided for at least one to two weeks, based on your doctor’s recommendations.
4. Is this procedure covered by MediSave or insurance in Singapore?
If deemed medically necessary, the procedure may be claimable under MediSave and/or private insurance plans. Coverage depends on the procedure code, policy terms, and limits. A financial counselling session is recommended before treatment.
5. What is the success rate of anal fistula laser treatment?
Success rates generally range between 60% and 80%, depending on the type of fistula. While this may be lower than some traditional approaches, FiLaC offers the advantage of preserving sphincter function.