RESUMO
<p><b>OBJECTIVE</b>To assess the application of ultrathin transnasal gastroscopy in transnasal percutaneous endoscopic gastrostomy (nPEG) in patients with trimus and/or pharyngeal narrowing.</p><p><b>METHODS</b>Nine consecutive patients underwent PEG with the Introducer method using conventional gastroscopy (5 cases) or ultrathin transnasal gastroscopy (4 cases). Among the 4 patients undergoing nPEG, 3 received radiotherapy for nasopharyngeal cancer, including two with trimus and one with trimus and pharyngeal narrowing. The procedure time, safety, discomfort and complications in these cases were compared and evaluated.</p><p><b>RESULTS</b>The average procedure time of PEG was 17+/-3.5 min in conventional gastroscopy group and 17+/-3.1 min in nPEG group. No complications were observed in these patients, but the patients in nPEG group reported less discomfort associated with the procedure.</p><p><b>CONCLUSIONS</b>Ultrathin transnasal gastroscopy reduces the discomfort of the procedure and is safer than conventional gastroscopy for PEG, especially in patients with trimus and/or pharyngeal narrowing.</p>