Efficacy of Retrievable Metallic Stent with Fixation String for Benign Stricture after Upper Gastrointestinal Surgery.
To determine the efficacy of retrievable metallic stent with fixation string for benign anastomotic stricture after upper gastrointestinal (UGI) surgery.



From June 2009 to May 2015, a total of 56 retrievable metallic stents with fixation string were placed under fluoroscopy guidance in 42 patients who were diagnosed with benign anastomotic stricture after UGI surgery. Clinical success was defined as achieving normal regular diet (NRD).



The clinical success rate after the first stent placement was 57.1% (24/42). After repeated stent placement and/or balloon dilation, the clinical success rate was increased to 83.3% (35/42). Six (14.3%) patients required surgical revision to achieve NRD. One (2.4%) patient failed to achieve NRD. Stent migration occurred in 60.7% (34/56) of patients. Successful rate of removing the stent using fixation string and angiocatheter was 94.6% (53/56). Distal migration occurred in 12 stents. Of the 12 stents, 10 (83.3%) were successfully removed whereas 2 could not be removed. No complication occurred regarding distal migration.



Using retrievable metallic stent with a fixation string is a feasible option for managing early benign anastomotic stricture after UGI surgery. It can reduce complications caused by distal migration of the stent.
Department of Radiology, Seoul National University Hospital, Seoul 03080, Korea.
Jeong-Eun
JE
Kim
Department of Radiology, Seoul National University Hospital, Seoul 03080, Korea.
Hyo-Cheol
HC
Kim
Department of Radiology, Seoul National University Hospital, Seoul 03080, Korea.
Myungsu
M
Lee
Department of Radiology, Seoul National University Hospital, Seoul 03080, Korea.
Saebeom
S
Hur
Department of Radiology, Seoul National University Hospital, Seoul 03080, Korea.
Minuk
M
Kim
Department of Radiology, Seoul National University Hospital, Seoul 03080, Korea.
Sang Hwan
SH
Lee
Department of Radiology, Seoul National University Hospital, Seoul 03080, Korea.
Soo Buem
SB
Cho
Department of Radiology, Seoul National University Hospital, Seoul 03080, Korea.
Chan Sun
CS
Kim
Department of Radiology, Seoul National University Hospital, Seoul 03080, Korea.
Joon Koo
JK
Han
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000800:Angioplasty, Balloon; D003251:Constriction, Pathologic; D005260:Female; D005471:Fluoroscopy; D005548:Foreign-Body Migration; D005763:Gastroenterostomy; D005767:Gastrointestinal Diseases / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D015607:Stents; D053831:Surgical Fixation Devices; D016896:Treatment Outcome
Benign stricture; Fixation string; Stent; Stent migration; Upper gastrointestinal tract