Fistula-in-Ano Questions & Answers

Updated: Jul 29, 2022
  • Author: Juan L Poggio, MD, MS, FACS, FASCRS; Chief Editor: John Geibel, MD, MSc, DSc, AGAF  more...
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Questions & Answers

Overview

What is a fistula-in-ano (anal fistula)?

Which conditions should be included in the differential diagnoses of fistula-in-ano (anal fistula)?

What causes fistula-in-ano (anal fistula)?

What is the historical background of fistula-in-ano (anal fistula)?

What are the treatment options for fistula-in-ano (anal fistula)?

What anatomical features are useful in understanding fistula-in-ano (anal fistula)?

What is the Goodsall rule of fistula-in-ano (anal fistula)?

Which is the Parks classification system of fistula-in-ano (anal fistula)?

How is an intersphincteric fistula-in-ano (anal fistula) characterized?

How is a transsphincteric fistula-in-ano (anal fistula) characterized?

How is a suprasphincteric fistula-in-ano (anal fistula) characterized?

How is an extrasphincteric fistula-in-ano (anal fistula) characterized?

How is fistula-in-ano (anal fistula) classified using current procedural terminology?

What is the pathogenesis of fistula-in-ano (anal fistula)?

What is the prevalence of fistula-in-ano (anal fistula)?

Presentation

What are the signs and symptoms of fistula-in-ano (anal fistula)?

What is the focus of history in suspected fistula-in-ano (anal fistula)?

What symptoms in a patient history suggest fistula-in-ano (anal fistula)?

What should be included in the physical exam of suspected fistula-in-ano (anal fistula)?

Workup

What is the role of lab studies in the diagnosis of fistula-in-ano (anal fistula)?

What is the role of ultrasonography in the evaluation of fistula-in-ano (anal fistula)?

What is the role of imaging studies in the evaluation of fistula-in-ano (anal fistula)?

What is the role of fistulography in the evaluation of fistula-in-ano (anal fistula)?

What is the role of MRI in the diagnosis of fistula-in-ano (anal fistula)?

What is the role of CT scanning in the diagnosis of fistula-in-ano (anal fistula)?

Which imaging study is performed in the evaluation of multiple fistula-in-ano (anal fistula)?

What is the role of anal manometry in fistula-in-ano (anal fistula)?

When is anesthesia indicated in the exam of fistula-in-ano (anal fistula)?

What techniques are used to locate a fistula-in-ano (anal fistula) while a patient is under anesthesia?

What is the role of rigid sigmoidoscopy in the evaluation of fistula-in-ano (anal fistula?

Treatment

When is therapeutic intervention indicated for fistula-in-ano (anal fistula)?

What are the treatment options for fistula-in-ano (anal fistula)?

How is asymptomatic fistula-in-ano (anal treated?

When is surgical intervention for fistula-in-ano (anal fistula) contraindicated?

What is the preoperative preparation for surgical treatment of fistula-in-ano (anal fistula)?

What are the intraoperative steps in the surgical treatment of fistula-in-ano (anal fistula)?

How effective is fistulotomy for treating fistula-in-ano (anal fistula)?

What are the steps for fistulotomy to treat fistula-in-ano (anal fistula)?

When is seton placement indicated in the treatment of fistula-in-ano (anal fistula)?

What is the purpose of setons in the treatment of fistula-in-ano (anal fistula)?

What are the steps to perform cutting seton placement for the treatment of fistula-in-ano (anal fistula)?

What is the efficacy of seton placement for the treatment of fistula-in-ano (anal fistula)?

What are the steps to perform draining seton placement for the treatment of fistula-in-ano (anal fistula)?

When is a mucosal advancement flap indicated in the treatment of fistula-in-ano (anal fistula)?

How is a mucosal flap performed in the surgical treatment of fistula-in-ano (anal fistula)?

What is the role of plugs and adhesives in the treatment of fistula-in-ano (anal fistula)?

What is the efficacy of plugs and adhesives in the treatment of fistula-in-ano (anal fistula)?

When is a ligation of the intersphincteric fistula tract (LIFT) indicated in the treatment of fistula-in-ano (anal fistula)?

How is ligation of the intersphincteric fistula tract (LIFT) performed in the treatment of fistula-in-ano (anal fistula)?

What is the role of diverting stoma in the treatment of fistula-in-ano (anal fistula)?

What postoperative care is needed following surgical intervention for fistula-in-ano (anal fistula)?

What are the early postoperative complications of surgery for fistula-in-ano (anal fistula)?

What are the delayed complications of surgery for fistula-in-ano (anal fistula)?

What is the rate of fistula-in-ano (anal fistula) recurrence following surgery?

How should fistula-in-ano (anal fistula) be monitored following surgical intervention?