title: Successful treatment of rectovaginal fistula and rectal stenosis due to perianal Crohn's disease by dual-port laparoscopic abdominoperineal resection: a report of two cases.
abstract: BACKGROUND
  The incidence of rectovaginal fistula in women with Crohn's disease has been reported to be 3-10 %. Although rectovaginal fistulas can be managed medically and surgically, they have high rates of recurrence and complications. Rectal stenosis is another condition that occurs due to perianal Crohn's disease. A novel, minimally invasive procedure, dual-port laparoscopic abdominoperineal resection using a multichannel port, has been shown effective in patients with lower rectal cancer and patients with medically uncontrolled ulcerative colitis. This report describes the use of the same method for two patients with Crohn's disease-related rectovaginal fistula and rectal stenosis.
  
  
  METHODS
  The first patient, a 22-year-old woman, was diagnosed with rectovaginal fistula and rectal stenosis due to perianal Crohn's disease 2 years earlier. Induction therapy with infliximab and endoscopic balloon dilatation did not improve her symptoms. The second patient, a 33-year-old woman, was also diagnosed with rectovaginal fistula and rectal stenosis due to perianal Crohn's disease, and medical treatment was also unsuccessful. Both patients underwent dual-port laparoscopic abdominoperineal resection using a multichannel port, with no perioperative and postoperative complications.
  
  
  CONCLUSIONS
  These findings show that this reduced port method can be used to successfully treat patients with Crohn's disease-associated rectovaginal fistula and rectal stenosis.
authors: Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, North 15, West 7, Kita-Ku, Sapporo, Hokkaido, 060-8638, Japan.
authors: Fumihiko
authors: F
authors: Matsuzawa
authors: Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, North 15, West 7, Kita-Ku, Sapporo, Hokkaido, 060-8638, Japan. homma.s@nifty.com.
authors: Shigenori
authors: S
authors: Homma
authors: Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, North 15, West 7, Kita-Ku, Sapporo, Hokkaido, 060-8638, Japan.
authors: Tadashi
authors: T
authors: Yoshida
authors: Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, North 15, West 7, Kita-Ku, Sapporo, Hokkaido, 060-8638, Japan.
authors: Susumu
authors: S
authors: Shibasaki
authors: Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, North 15, West 7, Kita-Ku, Sapporo, Hokkaido, 060-8638, Japan.
authors: Nozomi
authors: N
authors: Minagawa
authors: Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, North 15, West 7, Kita-Ku, Sapporo, Hokkaido, 060-8638, Japan.
authors: Tatsushi
authors: T
authors: Shimokuni
authors: Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, North 15, West 7, Kita-Ku, Sapporo, Hokkaido, 060-8638, Japan.
authors: Hideyasu
authors: H
authors: Sakihama
authors: Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, North 15, West 7, Kita-Ku, Sapporo, Hokkaido, 060-8638, Japan.
authors: Hideki
authors: H
authors: Kawamura
authors: Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, North 15, West 7, Kita-Ku, Sapporo, Hokkaido, 060-8638, Japan.
authors: Norihiko
authors: N
authors: Takahashi
authors: Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, North 15, West 7, Kita-Ku, Sapporo, Hokkaido, 060-8638, Japan.
authors: Akinobu
authors: A
authors: Taketomi
keywords: Dual-port laparoscopic abdominoperineal resection; Perianal Crohn’s disease; Rectal stenosis; Rectovaginal fistula; Reduced port surgery