THE FEASIBILITY OF PARTIALLY COVERED SELF-EXPANDABLE METAL STENT FOR THE BENIGN PYLORIC STRICTURE

Aims:

The self-expandable metal stent (SEMS) is wildly used for the malignant gastrointestinal obstruction. However, using the SEMS for the benign stricture is not well studied. So this study evaluated the feasibility of partially covered SEMS as an initial treatment method for the benign pyloric stricture.

Methods:

We enrolled the patients who were diagnosed as duodenal ulcer with gastric outlet obstruction from Dec 2011 to May 2016. There were 15 Patients, who were treated by the partially covered SEMS. Men were twelve. Mean age was sixty-two (46 – 86).

Results:

To facilitate the placement of SEMS, we dilated the stricture in six cases using the CRE balloon (18 mm) just before placing the SEMS. But we didn't use the CRE balloon for most of cases. We used the partially covered Hanaro stent, which was used for six cases, and partially covered Niti-S stent for others. As adverse events, patients suffered from the SEMS migration during the follow up period in four cases. And we couldn't remove the stent in two cases because of the luminal growing into the stent. But the gastric outlet obstruction symptom score was much improved (1 → 3) after placing the SEMS.

Conclusions:

We experienced fifteen cases of placing the partially covered SEMS for the benign duodenal stricture. Most of them improved the gastric outlet symptom and it is possible to remove the previous installed partially covered stent. It is feasible to place the SEMS for the benign pyloric stricture.