OATS: A SELF-DESIGNED PLASTIC TAILED BILIARY STENT
RGG Bondoc; LBC Corral; ER Magsino; KJS Cham; EG Ong Metropolitan Medical Center
Significance: Biliary stenting is the standard endotherapy for obstructive biliary disorders. Complications include stent occlusion, proximal or distal migration and duodenal perforation. We aim to present a modified tailed plastic stent designed to lessen risk of stent complications.
Methodology: The Ong-Acuesta-Trecero Stent (OATS) is a generic tapered Teflon stent, in 7Fr and 10Fr, with standard flaps and modified by thinly slicing part of the duodenal end lengthwise 2-cm long and cutting off the remaining thicker end across. The stent was deployed normally with attention to the tail. The actual lumen of the stent is maintained. Several uses of OATS have been identified. For distal migration, the tail may curve inwards or outwards, preventing penetration or perforation of the opposite duodenal wall. For proximal migration, as long as the tip of the tail could be visualized, it can be repositioned. For double stenting, the initial stent is the tailed stent so that in case of migration during deployment of the second stent, the first one could still be adjusted. For Fr10 stent replacement, OATS could be pulled out through the endoscope channel without removing the scope and this significantly saves time and effort.
Results: OATS can be utilized as anti-migration and facilitates stent exchange.
Conclusion: OATS maybe an alternative in instances when stent migration risk is high.