A novel device designated BougieCap (Ovesco, Tübingen, Germany) has been marketed for endoscopic treatment of esophageal strictures under both visual and haptic control [1]. A recently published prospective multicenter study on the utility and complications in its mainstay indication has reported high rates of endoscopic and clinical success. On the downside, loss of the BougieCap with subsequent passage into the stool has been documented in 2/50 individuals, such that “the lost cap” may be considered a signature complication due to insufficient attachment by circular taping and/or, albeit unproven, stricture length and tightness [2]. While no clinical consequences from the lost caps were reported, potential clinical and/or medicolegal implications may arise reminiscent of small-bowel capsule retention [3].
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