Microlaryngosurgery for benign posterior glottal lesions using a posterior glottis direct laryngoscope

When endolaryngeal microscopic laryngosurgery (microlaryngosurgery) with a direct laryngoscope is used to remove lesions of the posterior glottal area under endotracheal general anesthesia, the endotracheal tube interferes with the surgical field. To overcome this problem, we developed a special direct laryngoscope with a concave groove on the upper portion of its distal tip. The concave groove is used to move the endotracheal tube anteriorly, making it possible to obtain a good surgical field in the posterior glottal area. This laryngoscope facilitates the removal of posterior glottal lesions. The utility of this microlaryngosurgical technique for the removal of benign posterior glottal lesions is described.