Radiological Position and Clinical Outcome of Preoperative Self-Expanding Metal Stents for Obstructing XXXX : A Single-Centre Cohort Study.

@entity1 @entity548 @entity2616 @entity4558 @entity694
BACKGROUND: Preoperative placement of self-expanding metal stents is used in @entity1 with obstructing @entity694 to prevent an emergency operation. The perceived benefits remain the subject of discussion. The data-evaluating function and complications of stents in relation to radiological position are limited. METHODS: @entity1 receiving a preoperative stent between 2003 and 2013 were retrospectively analysed in this single-centre study. We analysed radiological deployment, eccentricity and angulation of the stent directly after placement. Endpoints were clinical success (resolution of @entity2616 ), complications needing non-elective surgery (blow-out, perforation, persistent @entity2616 , dislocation) and other complications ( @entity548 , infiltrate). Associations were corrected for other potential influences. RESULTS: Eighty-two @entity1 were included. In 22 @entity1 (26.8%), the stent was placed proximal to the @entity4558 . Clinical success was present in 85.4%. Twenty-two @entity1 (26.8%) had a complication of which 16 (19.5%) underwent urgent surgery for insufficient functioning of the stent; there were two blow-outs (2.4%). A more symmetrically placed stent was associated with clinical success (p = 0.042), with large overlap between groups. However, no association was found with non-elective surgery or complications. Also, angulation and deployment were unassociated with these outcomes. CONCLUSIONS: We could not establish an association between symmetry, angulation or deployment of self-expandable colonic stents with clinical success and complications.
