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Novel method of stent insertion for malignant lower rectal obstruction with proximal releasing delivery system (with video).

Authors
Lee, KM; Lim, SG; Shin, SJ; Kim, JH; Kang, DH; Kim, JK; Hwang, JC; Kwon, CI; Cheong, JY; Yoo, BM
Citation
Gastrointestinal endoscopy, 78(6):930-933, 2013
Journal Title
Gastrointestinal endoscopy
ISSN
0016-51071097-6779
Abstract
BACKGROUND: Self-expandable metal stents are an alternative to preoperative and palliative colostomy for patients with malignant colorectal obstruction. However, self-expandable metal stent placement is considered unsuitable or contraindicated for patients with malignant lower rectal obstruction within 5 cm of the anal verge because the exposed stent portion can irritate the distal rectum and cause anal pain and a foreign body sensation.



OBJECTIVE: To describe our experience with 6 patients with malignant lower rectal obstruction who underwent stent insertion with a proximal releasing delivery system (PRDS).



DESIGN: Prospective clinical series outcome study.



SETTING: A tertiary-care referral university hospital.



PATIENTS: This study involved all patients at our center who had a malignant lower rectal obstruction within 5 cm of the anal verge caused by rectal cancer and bladder cancer.



INTERVENTION: Uncovered stent with the PRDS with endoscopic and fluoroscopic guidance.



MAIN OUTCOME MEASUREMENTS: Technical and clinical success rate, adverse event rate, and stent migration rate.



RESULTS: All stents were placed at the expected location. Technical and clinical success rates were 100%. Two patients reported anal pain, which was controlled with analgesics. One case of tumor ingrowth occurred after 5 months and was treated with reinsertion of a stent with the PRDS. After stent insertion, the patients received chemotherapy, chemoradiotherapy, or conservative care.



LIMITATIONS: Small number of patients and no comparison group. Further prospective, randomized, controlled trials are needed.



CONCLUSIONS: Uncovered stent insertion with the PRDS is a feasible, safe, and effective treatment for the patient with malignant lower rectal obstruction within 5 cm from the anal verge.
Keywords
PRDSSEMSproximal releasing delivery system
DOI
10.1016/j.gie.2013.08.018
PMID
24237948
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Radiology
Journal Papers > School of Medicine / Graduate School of Medicine > Gastroenterology
AJOU Authors
이, 기명임, 선교신, 성재김, 진홍김, 재근황, 재철정, 재연유, 병무
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