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08.09.2016 | Ausgabe 5/2017

Surgical Endoscopy 5/2017

Colonic self-expanding metal stent (SEMS) as a bridge to surgery in left-sided malignant colonic obstruction: an 8-year review

Zeitschrift:
Surgical Endoscopy > Ausgabe 5/2017
Autoren:
Kit-man Ho, Ka-man Chan, Shu-yan Kwok, Patrick ying-yu Lau

Abstract

Introduction

Colonic stenting has evolved to be an alternative to emergency laparotomy in the management of acute left-sided malignant colonic obstruction. This retrospective comparative study aimed to review the outcomes of colonic stent as bridge to surgery with emergency operation in a regional hospital in Hong Kong.

Method

Consecutive patients who were admitted from January 2006 to July 2014 with diagnosis of malignant left-sided colonic obstruction (from splenic flexure to rectosigmoid colon) were included. Patients with peritonitis or disseminated disease were excluded. Colonic stenting was attempted in all eligible patients when fluoroscopy was available in the endoscopy suite during office hour. Otherwise, emergency operation was performed. For patients with clinical success in colonic stenting, interval colectomies were performed. The postoperative outcomes, including the 30-days mortality, the stoma creation rate, the complication rate as well as the survival data were analyzed on an intention-to-treat (ITT) basis.

Results

From January 2006 to July 2014, 62 patients underwent colonic stenting and 40 patients underwent emergency operations. The technical success rate and the clinical success rate of stenting were 95.2 and 83.9 %, respectively. Laparoscopic resection was achieved in 74.2 % in the stenting group. More primary anastomoses were performed in the stenting group (71.0 vs. 27.5 %, p = 0.000). The stenting group had a significantly lower permanent stoma rate (16.1 vs. 52.5 %, p < 0.000), fewer Dindo grade III to IV postoperative morbidity (16.1 vs. 40 %, p = 0.007), and the 30-day mortality rate was lower (3.2 vs. 17.5 %, p = 0.018), translating into a better overall 5-year survival rate. The disease-free survival was comparable between the two groups.

Conclusions

Colonic self-expanding metal stent is effective in the management of acute left-sided colonic obstruction. It is associated with reduced stoma creation rate and postoperative morbidity. The oncological safety is not jeopardized by stenting and the interval operation.

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