Anal Fistula

Understanding Anal Fistula: Definition

Anal fistula refer to an abnormal joining of the anal canal and the skin around the anus. The connection creates a passageway resembling a tunnel that enables pus and other fluids to drain. An anal fistula occurs due to infection or inflammation of the anal glands.

Common Symptoms of Anal Fistula

Pain or discomfort during bowel movements is the most common anal fistula symptom. The intensity of the pain varies based on the extent of the condition, ranging from mild to more severe pain. Blood or pus discharge coming from the opening around the anus is another symptom. The discharge may be accompanied by a foul smell and can trigger itching and irritation near the affected region.

These are other signs and symptoms that can help identify the condition:

• Swelling or visible lumps near the anus
• The red, inflamed region near the tunnel opening
• Blood, pus, or stool oozing from the tunnel opening
• Rectum and anal pain, mostly when passing stool or sitting
• Fever

A physical indication of anal fistula involves a small hole or opening around the anus that comes with swelling or redness.

Generally, it's important to know the differences between anal fistula and conditions like abscesses or haemorrhoids since they can cause the same symptoms. You should also see a practitioner for a precise diagnosis.

Causes of Anal Fistula

Many cases of anal fistulas occur from an infection that begins in the anal gland. This infection can cause an abscess that may evolve into a fistula. Other possible but rare causes of anal fistulas are:

• Inflammatory bowel disease including Crohn's disease
• Sexually transmitted infections of the anus
• Previous surgery or traumatic injury in the anus
• Tuberculosis that affects the anus
• Radiation therapy in the pelvic area

Risk Factors for Anal Fistula: Who is Most at Risk?

Some factors are likely to increase the chances of anal fistula occurrence. Those who have inflammatory bowel disease like ulcerative colitis or Crohn's disease are at a high risk of developing anal fistula. Also, people who have undergone surgeries in their anal region or have had abscesses before are susceptible to the condition.

Diagnosis of Anal Fistula: Tests and Procedures

The medical providers often diagnose anal fistula by conducting a physical exam, asking about the symptoms, and evaluating a person’s medical history. The examination involves assessment of the area near and inside the anus.

They can also order one or more of these imaging tests to help identify the condition:

• Magnetic Resonance Imaging (MRI) to obtain detailed pictures of the sphincter muscles and pelvic floor structures.
• Endoscopic ultrasound to help identify sphincter muscles, fistulas, and nearby tissues.
• Fistulography, an X-ray that utilizes injected contrast to checkthe anal fistula tunnel.

Treatment Options for Anal Fistula

The extent and complexity of anal fistula determines the treatment options. The treatments aim to repair the anal fistula completely, prevent recurrences, as well as protect the sphincter muscles.

Non-surgical treatment options are:

• Medications, including immunosuppressants and antibiotics, to address any inflammation or infection.
• Lifestyle adjustments, including proper hygiene maintenance, avoiding constipation, and consuming a high-fibre diet, may be helpful in managing symptoms and promoting recovery.

Seton placement is another technique that surgeons can perform by inserting a thread-like material to maintain the anal tract open. Alternatively they can use fibrin glue and collagen plug to seal the internal opening and anal fistula tunnel.

Surgical treatment options for anal fistula are:

• Fistulotomy, which is the most common surgical approach that involves cutting through the fistula roof to allow filling from the bottom upwards. The infected tissue may also be removed during the procedure.
• Endorectal advancement flap, which involves cutting out the infected tissues near the anal fistula opening. The opening is then covered using the flap created from the rectal wall.
• Ligation of intersphincteric fistula tract (LIFT), which involves closing the fistula part passing between the sphincter muscles with stitches.

Recovery from Anal Fistula Surgery: What to Expect

The anal fistula surgery recovery period varies based on the person and procedure conducted. During the days after surgery, pain and discomfort are normal, and prescribed painkillers can help manage them. It's also important to pay attention to post-operative guidelines and go for regular check-ups to ensure successful healing.

Complications of Anal Fistula

Recurring infections, abscess formation, and the emergence of a chronic fistula are possible complications associated with anal fistulas. These may cause additional discomfort or pain and might need further treatment or surgery. In case complications occur, it is essential to seek prompt medical assistance.

Prevention of Anal Fistula: Tips and Strategies

Although preventing anal fistula may be impossible, specific tips and strategies might help minimize the risk. They include:

• Maintaining proper hygiene
• Avoiding injury or trauma in the anal region
• Getting medical assistance for any infections or symptoms

Living with Anal Fistula: Coping Strategies and Support

Anal fistulas can be physically and emotionally challenging to live with. Therefore, people need to learn coping strategies including self-care, getting help from medical specialists and asking for emotional support from loved ones. A feeling of understanding and connection can also be found in support groups and online communities.

Conclusion

In general, anal fistula is a condition that can highly lower a person's quality of life. Knowing the associated symptoms, underlying causes and available treatment options is essential for accurate diagnosis and management. People with anal fistulas can get relief from their pain and discomfort by consulting a doctor and adhering to the recommended treatment plans.