P14 Initial UK experience in use of the gastroduodenal full thickness resection device

Introduction The gastroduodenal full thickness resection device (FTRD®) is a new device that allows resection of tethered epithelial or subepithelial lesions (SELs) in the stomach and duodenum, but data on outcomes are limited1. Here we present first UK experience of this technique, including technical feasibility, safety and early outcomes. Methods Data on consecutive patients who underwent endoscopic full thickness resection (eFTR) at two UK teaching hospitals in November - December 2019 were analysed. The procedure was undertaken using the endoscope mounted gastroduodenal FTRD®. Main outcome measures were technical success (target lesion resection with FTRD®), total procedural time, specimen size, R0 resection, and adverse events. Need for dilatation to facilitate passage of device past cricopharyngeus or the pylorus was also documented. Results All cases were undertaken under general anaesthetic. It was possible to insert the device to the lesion in all cases; in two, dilatation of the pylorus with a 20 mm through the scope balloon was required to facilitate passage of the device to the duodenum. Technical success and histological diagnosis were achieved in 5/5 (100%) cases. Median total procedural time was 23 minutes (range 18–65). Baseline and outcome data of the cases can be seen in table 1. Two patients were kept for overnight observation and three were discharge on same day as the procedure. One patient reported shivering post procedure, which was thought to be general anaesthesia related, otherwise there were no immediate or delayed complications. Conclusions eFTR of SELs or heavily scarred lesions in the stomach and duodenum is feasible and safe with the gastroduodenal FTRD®. It facilitates acquisition of definite histology aiding diagnosis and R0 resection is possible, providing treatment or avoiding need for ongoing surveillance in selected patients. The device can be challenging to insert and in particular, pre-dilatation of the pylorus to facilitate insertion into the duodenum may be required. References Meier B, Schmidt A, Glaser N, Meining A, Walter B, Wannhoff A, Riecken B, Caca K (2020) Endoscopic full-thickness resection of gastric subepithelial tumors with the gFTRD-system: a prospective pilot study (RESET trial). Surg Endosc 34:853–860