Transpyloric misplacement and intramural dislocation: two novel complications related to balloon-type G-tubes.

To the Editor: Percutaneous endoscopic gastrostomy (PEG) remains the standard enteral nutrition access in clinical practice with limited complication potential. Beyond mushroom and/or disk-tip tubes (pull technique), in the introducer technique balloon-type G-tubes are implanted, warranting regular, often nurse-led exchanges. Herein, two novel complications related to tube exchange are presented. A frail male patient with advanced diffuse idiopathic skeletal hyperostosis (DISH)–related dysphagia reported on worsening enteral nutrition tolerance (intermittent administration) due to abdominal pain since the last bedside tube exchange by a specialized nutrition team in the nursing home. On endoscopy, transpyloric misplacement likely related to inadvertent duodenal guidewire insertion (Fig. 1A), resistant to repositioning by external traction (Fig. 1B), was detected. Endoscopy-directed repositioning was easily performed after balloon deflation and withdrawal into the stomach, and other potential causes for deterioration of nutrition tolerance, such as ulcer disease, were excluded. In retrospective, this