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. 2020 Jan 10:2020:6810164.
doi: 10.1155/2020/6810164. eCollection 2020.

Endoscopic Self-Expandable Metallic Stent Insertion without Fluoroscopic Guidance Is Feasible and Safe for Acute Colonic Obstruction Caused by Colorectal Cancer

Affiliations

Endoscopic Self-Expandable Metallic Stent Insertion without Fluoroscopic Guidance Is Feasible and Safe for Acute Colonic Obstruction Caused by Colorectal Cancer

Yadong Feng et al. Gastroenterol Res Pract. .

Abstract

Aims: Endoscopic self-expandable metallic stent (SEMS) insertion for acute colonic obstruction caused by colorectal cancer (CRC) is always performed under fluoroscopic guidance. This study evaluated the feasibility and safety of an endoscopic stenting procedure without fluoroscopic guidance.

Methods: A total of 36 patients with an acute colonic obstruction caused by CRC underwent endoscopic SEMS insertion using a colonoscope without fluoroscopic guidance, followed by analyses of the technical and clinical success and short-term complications.

Results: Total technical success rate and clinical success rate were 91.7% and 86.1%, respectively. The mean procedure time was 21.2 ± 10.3 minutes. There was no stent dislodgement. One case of hematochezia and two cases of tenesmus occurred in patients with left-sided complete obstructions. No other short-term complications occurred. Procedure time, technical success, and clinical success rate were 16.3 ± 9.4 minutes, 93.1%, and 89.6% for left-sided obstructions, respectively, and were 26.8 ± 10.7 minutes, 85.7%, and 71.4% for right-sided obstructions, respectively. For complete obstructions, procedure time, technical success, and clinical success rate were 22.5 ± 8.9 minutes, 90%, and 83.3%, respectively. In the incomplete cases, procedure time, technical success, and clinical success were 13.5 ± 6.7 minutes, 100%, and 100%, respectively. Technical success, clinical success, and short-term complications were not differed between lesion locations and degrees.

Conclusions: This simple technique is feasible and safe for palliation of acute colonic obstruction caused by CRC.

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Conflict of interest statement

All authors declare there is no conflict of interest.

Figures

Figure 1
Figure 1
The procedures of one SEMS insertion. (a) Endoscopic view of a complete colonic malignant obstruction. (b) A hydrophilic 0.035-inch biliary guidewire was used to traverse the stricture. (c) The delivery system was advanced over the guidewire and guided into the site of obstruction. (d) Endoscopic view of stent release. (e) Endoscopic view of SEMS expansion after release. (f) The distal end of SEMS was about 2 cm beyond the edge of the tumor after stent deployment.

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